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Mares SHW, Roelofs J, Zinzen J, Béatse M, Elgersma HJ, Drost RMWA, Evers SMAA, Elburg AAV. Clinical effectiveness, cost-effectiveness and process evaluation of group schema therapy for eating disorders: study protocol for a multicenter randomized controlled trial. BMC Psychol 2024; 12:123. [PMID: 38439092 PMCID: PMC10913254 DOI: 10.1186/s40359-024-01624-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Eating disorders (EDs), such as (atypical) Anorexia (AN) and Bulimia Nervosa (BN), are difficult to treat, causing socioeconomic impediments. Although enhanced cognitive behavioral therapy (CBT-E) is widely considered clinically effective, it may not be the most beneficial treatment for (atypical) AN and BN patients who do not show a rapid response after the first 4 weeks (8 sessions) of a CBT-E treatment. Alternatively, group schema therapy (GST) may be a valuable treatment for this ED population. Even though GST for EDs has yielded promising preliminary findings, the current body of evidence requires expansion. On top of that, data on cost-effectiveness is lacking. In light of these gaps, we aim to describe a protocol to examine whether GST is more (1) clinically effective and (2) cost-effective than CBT-E for (atypical) AN and BN patients, who do not show a rapid response after the first 4 weeks of treatment. Additionally, we will conduct (3) process evaluations for both treatments. METHODS Using a multicenter RCT design, 232 Dutch (atypical) AN and BN patients with a CBT-E referral will be recruited from five treatment centers. Clinical effectiveness and cost-effectiveness will be measured before treatment, directly after treatment, at 6 and at 12 months follow-up. In order to rate process evaluation, patient experiences and the degree to which treatments are implemented according to protocol will be measured. In order to assess the quality of life and the achievement of personalized goals, interviews will be conducted at the end of treatment. Data will be analyzed, using a regression-based approach to mixed modelling, multivariate sensitivity analyses and coding trees for qualitative data. We hypothesize GST to be superior to CBT-E in terms of clinical effectiveness and cost-effectiveness for patients who do not show a rapid response to the first 4 weeks of a CBT-E treatment. DISCUSSION To our knowledge, this is the first study protocol describing a multicenter RCT to explore the three aforementioned objectives. Related risks in performing the study protocol have been outlined. The expected findings may serve as a guide for healthcare stakeholders to optimize ED care trajectories. TRIAL REGISTRATION clinicaltrials.gov (NCT05812950).
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Affiliation(s)
- Suzanne H W Mares
- Department of Eating Disorders (Amarum), GGNet Mental Health, St. Annastraat 312c, Nijmegen, 6525 HG, The Netherlands.
| | - Jeffrey Roelofs
- Clinical Psychological Science, Faculty of Psychology and Neuroscience, Experimental Psychopathology, Maastricht University, Maastricht, 6200 MD, The Netherlands
| | - Janôt Zinzen
- Clinical Psychological Science, Faculty of Psychology and Neuroscience, Experimental Psychopathology, Maastricht University, Maastricht, 6200 MD, The Netherlands
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health, Medicine and Life Sciences (FHML), Maastricht University, Maastricht, the Netherlands
| | - Manouk Béatse
- Department of Eating Disorders (Amarum), GGNet Mental Health, St. Annastraat 312c, Nijmegen, 6525 HG, The Netherlands
- Department of Clinical Psychology, Faculty of Social and Behavioural Sciences, Utrecht University, Utrecht, The Netherlands
| | - Hermien J Elgersma
- Department of Clinical Psychology & Experimental Psychopathology, University of Groningen, Groningen, the Netherlands
| | - Ruben M W A Drost
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health, Medicine and Life Sciences (FHML), Maastricht University, Maastricht, the Netherlands
| | - Silvia M A A Evers
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health, Medicine and Life Sciences (FHML), Maastricht University, Maastricht, the Netherlands
- Trimbos Institute, Centre for Economic evaluation and Machine Learning, National Institute of Mental Health and Addiction, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Department of Eating Disorders (Amarum), GGNet Mental Health, St. Annastraat 312c, Nijmegen, 6525 HG, The Netherlands
- Department of Clinical Psychology, Faculty of Social and Behavioural Sciences, Utrecht University, Utrecht, The Netherlands
- Co-eur, Utrecht, The Netherlands
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Sternheim LC, Bijsterbosch JM, Wever MCM, van Elburg AA, Frank GKW. Examining anxious temperament in anorexia nervosa: Behavioural inhibition and intolerance of uncertainty and their contribution to trait anxiety in adolescents with anorexia nervosa. J Affect Disord 2024; 348:116-123. [PMID: 38110154 DOI: 10.1016/j.jad.2023.12.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/06/2023] [Accepted: 12/13/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Anorexia nervosa (AN) is a serious and complex psychiatric disorder yet treatment results are suboptimal. Insight into the etiology of this illness is much needed. Research highlights the implication of anxiety-related traits in the development and maintenance of AN. This study investigates firstly, behavioural inhibition and intolerance for uncertainty (IU) in adolescents with and without AN, and secondly relations between these traits. METHODS In a cross-sectional study, 165 adolescent girls (AN = 94, HC = 71) completed questionnaires measuring behavioural inhibition, IU and trait anxiety. ANOVAs tested differences between AN and HC groups, and mediation models with IU as a mediator between behavioural inhibition and trait anxiety were run. RESULTS AN adolescents reported significantly higher levels of behavioural inhibition, IU and trait anxiety compared to their peers. In both AN and HC, a direct and a total effect of behavioural inhibition on trait anxiety was found. However, only in the AN group IU partially mediated the relation between behavioural inhibition and trait anxiety. LIMITATIONS Data is cross-sectional and longitudinal studies are required. A mean illness duration of nearly 2 years may mean early effects of malnourishment and habituation and future studies should include patients with shorter illness duration. CONCLUSIONS Results highlight that behavioural inhibition and IU may contribute to anxiety in AN whilst their peers may have developed better executive and social-emotional skills to manage uncertainty. Adolescents with AN may benefit from interventions targeting behavioural inhibition and IU.
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Affiliation(s)
- Lot C Sternheim
- Department of Clinical Psychology, Utrecht University, the Netherlands.
| | | | - Mirjam C M Wever
- Department of Clinical Psychology, Leiden University, the Netherlands
| | | | - Guido K W Frank
- Department of Psychiatry, University of California San Diego, USA
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Schröder SS, Danner UN, Spek AA, van Elburg AA. Exploring the intersection of autism spectrum disorder and eating disorders: understanding the unique challenges and treatment considerations for autistic women with eating disorders. Curr Opin Psychiatry 2023; 36:419-426. [PMID: 37781983 DOI: 10.1097/yco.0000000000000894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
PURPOSE OF REVIEW Autistic women struggle with high levels of both autistic eating behaviours and disordered eating behaviours , which might make them particularly vulnerable to develop eating disorders. Research investigating the presence and characteristics of eating disorders in autistic women is however limited, as is research examining the role of autism in the treatment and recovery of an eating disorder in autistic women. RECENT FINDINGS The link between autism and eating disorders has mainly been investigated from the field of eating disorder research, with studies finding an overrepresentation of autism or autistic traits in eating disorders populations. Findings also suggest that autism or autistic traits are associated with a more serious presentation of the eating disorders, including a higher chance of a chronic course of the eating disorders. Most studies however lack comprehensive autism assessments, making it difficult to determine the actual prevalence of autism and its role in women with eating disorders. SUMMARY Autistic women with an eating disorder seem to suffer from more complex eating disorders and seem to not benefit from current treatment modalities. This could be partly related to specific autism characteristics such as sensory sensitivities, which are not being considered by current treatment protocols. Future research needs to shed light on what underlies the eating behaviours of autistic women with an eating disorder, in order to help to adapt current treatment modalities to meet the unique needs of these women.
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Affiliation(s)
- Sabrina S Schröder
- Altrecht Eating Disorders Rintveld, Zeist
- Department of Clinical Psychology, Utrecht University, Utrecht
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Zeist
- Department of Clinical Psychology, Utrecht University, Utrecht
| | - Annelies A Spek
- Autism Expert Center, Goyergracht Zuid 39, Eemnes, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Zeist
- Department of Clinical Psychology, Utrecht University, Utrecht
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Walton E, Bernardoni F, Batury VL, Bahnsen K, Larivière S, Abbate-Daga G, Andres-Perpiña S, Bang L, Bischoff-Grethe A, Brooks SJ, Campbell IC, Cascino G, Castro-Fornieles J, Collantoni E, D'Agata F, Dahmen B, Danner UN, Favaro A, Feusner JD, Frank GKW, Friederich HC, Graner JL, Herpertz-Dahlmann B, Hess A, Horndasch S, Kaplan AS, Kaufmann LK, Kaye WH, Khalsa SS, LaBar KS, Lavagnino L, Lazaro L, Manara R, Miles AE, Milos GF, Monteleone AM, Monteleone P, Mwangi B, O'Daly O, Pariente J, Roesch J, Schmidt UH, Seitz J, Shott ME, Simon JJ, Smeets PAM, Tamnes CK, Tenconi E, Thomopoulos SI, van Elburg AA, Voineskos AN, von Polier GG, Wierenga CE, Zucker NL, Jahanshad N, King JA, Thompson PM, Berner LA, Ehrlich S. Brain Structure in Acutely Underweight and Partially Weight-Restored Individuals With Anorexia Nervosa: A Coordinated Analysis by the ENIGMA Eating Disorders Working Group. Biol Psychiatry 2022; 92:730-738. [PMID: 36031441 DOI: 10.1016/j.biopsych.2022.04.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/01/2022] [Accepted: 04/28/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND The pattern of structural brain abnormalities in anorexia nervosa (AN) is still not well understood. While several studies report substantial deficits in gray matter volume and cortical thickness in acutely underweight patients, others find no differences, or even increases in patients compared with healthy control subjects. Recent weight regain before scanning may explain some of this heterogeneity. To clarify the extent, magnitude, and dependencies of gray matter changes in AN, we conducted a prospective, coordinated meta-analysis of multicenter neuroimaging data. METHODS We analyzed T1-weighted structural magnetic resonance imaging scans assessed with standardized methods from 685 female patients with AN and 963 female healthy control subjects across 22 sites worldwide. In addition to a case-control comparison, we conducted a 3-group analysis comparing healthy control subjects with acutely underweight AN patients (n = 466) and partially weight-restored patients in treatment (n = 251). RESULTS In AN, reductions in cortical thickness, subcortical volumes, and, to a lesser extent, cortical surface area were sizable (Cohen's d up to 0.95), widespread, and colocalized with hub regions. Highlighting the effects of undernutrition, these deficits were associated with lower body mass index in the AN sample and were less pronounced in partially weight-restored patients. CONCLUSIONS The effect sizes observed for cortical thickness deficits in acute AN are the largest of any psychiatric disorder investigated in the ENIGMA (Enhancing Neuro Imaging Genetics through Meta Analysis) Consortium to date. These results confirm the importance of considering weight loss and renutrition in biomedical research on AN and underscore the importance of treatment engagement to prevent potentially long-lasting structural brain changes in this population.
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Affiliation(s)
- Esther Walton
- Department of Psychology, University of Bath, Bath, United Kingdom
| | - Fabio Bernardoni
- Translational Developmental Neuroscience Section, Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Victoria-Luise Batury
- Translational Developmental Neuroscience Section, Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Klaas Bahnsen
- Translational Developmental Neuroscience Section, Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Sara Larivière
- Multimodal Imaging and Connectome Analysis Laboratory, McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec
| | - Giovanni Abbate-Daga
- Eating Disorders Center for Treatment and Research, University of Turin, Turin, Italy
| | - Susana Andres-Perpiña
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Centro de Investigación Biomédica en Red de Salud Mental, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Lasse Bang
- Norwegian Institute of Public Health, Oslo; Regional Department for Eating Disorders, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Amanda Bischoff-Grethe
- Department of Psychiatry, University of California San Diego, La Jolla, California; Eating Disorders Center for Treatment and Research, University of California San Diego, La Jolla, California
| | - Samantha J Brooks
- School of Psychology, Faculty of Health Sciences, Liverpool John Moores University, Liverpool, United Kingdom; Department of Neuroscience, Uppsala University, Sweden
| | - Iain C Campbell
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Eating Disorders Unit, Department of Psychological Medicine, King's College London, London, United Kingdom
| | - Giammarco Cascino
- Section of Neurosciences, Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Salerno, Italy
| | - Josefina Castro-Fornieles
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Centro de Investigación Biomédica en Red de Salud Mental, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | | | | | - Brigitte Dahmen
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, the Netherlands; Faculty of Social Sciences, Utrecht University, Utrecht, the Netherlands
| | - Angela Favaro
- Department of Neuroscience, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy
| | - Jamie D Feusner
- Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada; Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, California
| | - Guido K W Frank
- Department of Psychiatry, University of California San Diego, La Jolla, California; Eating Disorders Center for Treatment and Research, University of California San Diego, La Jolla, California
| | - Hans-Christoph Friederich
- Centre for Psychosocial Medicine, Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
| | - John L Graner
- Center for Cognitive Neuroscience, Duke University, Durham, North Carolina
| | - Beate Herpertz-Dahlmann
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Andreas Hess
- Institute for Pharmacology and Toxicology, University Erlangen-Nuremberg, Erlangen, Germany
| | - Stefanie Horndasch
- Department of Child and Adolescent Psychiatry, University Clinic Erlangen, Erlangen, Germany
| | - Allan S Kaplan
- Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - Lisa-Katrin Kaufmann
- Department of Consultation-Liaison Psychiatry and Psychosomatics, University Hospital Zurich, University of Zurich; Division of Neuropsychology, Department of Psychology, University of Zurich, Zurich, Switzerland
| | - Walter H Kaye
- Department of Psychiatry, University of California San Diego, La Jolla, California; Eating Disorders Center for Treatment and Research, University of California San Diego, La Jolla, California
| | - Sahib S Khalsa
- Laureate Institute for Brain Research, University of Tulsa, Tulsa, Oklahoma; Oxley College of Health Sciences, University of Tulsa, Tulsa, Oklahoma
| | - Kevin S LaBar
- Center for Cognitive Neuroscience, Duke University, Durham, North Carolina
| | - Luca Lavagnino
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, Houston Texas
| | - Luisa Lazaro
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Centro de Investigación Biomédica en Red de Salud Mental, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Renzo Manara
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Amy E Miles
- Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - Gabriella F Milos
- Department of Consultation-Liaison Psychiatry and Psychosomatics, University Hospital Zurich, University of Zurich
| | | | - Palmiero Monteleone
- Section of Neurosciences, Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Salerno, Italy
| | - Benson Mwangi
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, Houston Texas
| | - Owen O'Daly
- Centre for Neuroimaging Studies, King's College London, London, United Kingdom; Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Jose Pariente
- Magnetic Resonance Image Core Facility, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Julie Roesch
- Department of Neuroradiology, University Clinic Erlangen, Erlangen, Germany
| | - Ulrike H Schmidt
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Eating Disorders Unit, Department of Psychological Medicine, King's College London, London, United Kingdom
| | - Jochen Seitz
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Megan E Shott
- Department of Psychiatry, University of California San Diego, La Jolla, California; Eating Disorders Center for Treatment and Research, University of California San Diego, La Jolla, California
| | - Joe J Simon
- Centre for Psychosocial Medicine, Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
| | - Paul A M Smeets
- UMC Utrecht Brain Center, Utrecht University, Utrecht, the Netherlands; Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | - Christian K Tamnes
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; PROMENTA Research Center, Department of Psychology, University of Oslo, Oslo, Norway; Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Elena Tenconi
- Department of Neuroscience, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy
| | - Sophia I Thomopoulos
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, California
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, the Netherlands; Faculty of Social Sciences, Utrecht University, Utrecht, the Netherlands
| | - Aristotle N Voineskos
- Campbell Family Mental Health Research Institute, University of Toronto, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Georg G von Polier
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany; Institute for Neuroscience and Medicine: Brain and Behaviour, Forschungszentrum Jülich, Jülich, Germany; Department of Child and Adolescent Psychiatry, University Hospital Frankfurt, Goethe University, Frankfurt, Germany
| | - Christina E Wierenga
- Department of Psychiatry, University of California San Diego, La Jolla, California; Eating Disorders Center for Treatment and Research, University of California San Diego, La Jolla, California
| | - Nancy L Zucker
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina
| | - Neda Jahanshad
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, California
| | - Joseph A King
- Translational Developmental Neuroscience Section, Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Paul M Thompson
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, California
| | - Laura A Berner
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Stefan Ehrlich
- Translational Developmental Neuroscience Section, Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany; Eating Disorders Research and Treatment Center, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.
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Watson HJ, Thornton LM, Yilmaz Z, Baker JH, Coleman JR, Adan RA, Alfredsson L, Andreassen OA, Ask H, Berrettini WH, Boehnke M, Boehm I, Boni C, Buehren K, Bulant J, Burghardt R, Chang X, Cichon S, Cone RD, Courtet P, Crow S, Crowley JJ, Danner UN, de Zwaan M, Dedoussis G, DeSocio JE, Dick DM, Dikeos D, Dina C, Djurovic S, Dmitrzak-Weglarz M, Docampo-Martinez E, Duriez P, Egberts K, Ehrlich S, Eriksson JG, Escaramís G, Esko T, Estivill X, Farmer A, Fernández-Aranda F, Fichter MM, Föcker M, Foretova L, Forstner AJ, Frei O, Gallinger S, Giegling I, Giuranna J, Gonidakis F, Gorwood P, Gratacòs M, Guillaume S, Guo Y, Hakonarson H, Hauser J, Havdahl A, Hebebrand J, Helder SG, Herms S, Herpertz-Dahlmann B, Herzog W, Hinney A, Hübel C, Hudson JI, Imgart H, Jamain S, Janout V, Jiménez-Murcia S, Jones IR, Julià A, Kalsi G, Kaminská D, Kaprio J, Karhunen L, Kas MJ, Keel PK, Kennedy JL, Keski-Rahkonen A, Kiezebrink K, Klareskog L, Klump KL, Knudsen GPS, La Via MC, Le Hellard S, Leboyer M, Li D, Lilenfeld L, Lin B, Lissowska J, Luykx J, Magistretti P, Maj M, Marsal S, Marshall CR, Mattingsdal M, Meulenbelt I, Micali N, Mitchell KS, Monteleone AM, Monteleone P, Myers R, Navratilova M, Ntalla I, O’Toole JK, Ophoff RA, Padyukov L, Pantel J, Papežová H, Pinto D, Raevuori A, Ramoz N, Reichborn-Kjennerud T, Ricca V, Ripatti S, Ripke S, Ritschel F, Roberts M, Rotondo A, Rujescu D, Rybakowski F, Scherag A, Scherer SW, Schmidt U, Scott LJ, Seitz J, Silén Y, Šlachtová L, Slagboom PE, Slof-Op ‘t Landt MC, Slopien A, Sorbi S, Świątkowska B, Tortorella A, Tozzi F, Treasure J, Tsitsika A, Tyszkiewicz-Nwafor M, Tziouvas K, van Elburg AA, van Furth EF, Walton E, Widen E, Zerwas S, Zipfel S, Bergen AW, Boden JM, Brandt H, Crawford S, Halmi KA, Horwood LJ, Johnson C, Kaplan AS, Kaye WH, Mitchell JE, Olsen CM, Pearson JF, Pedersen NL, Strober M, Werge T, Whiteman DC, Woodside DB, Gordon S, Maguire S, Larsen JT, Parker R, Petersen LV, Jordan J, Kennedy M, Wade TD, Birgegård A, Lichtenstein P, Landén M, Martin NG, Mortensen PB, Breen G, Bulik CM. Common Genetic Variation and Age of Onset of Anorexia Nervosa. Biol Psychiatry Glob Open Sci 2022; 2:368-378. [PMID: 36324647 PMCID: PMC9616394 DOI: 10.1016/j.bpsgos.2021.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 11/08/2022] Open
Abstract
Background Genetics and biology may influence the age of onset of anorexia nervosa (AN). The aims of this study were to determine whether common genetic variation contributes to age of onset of AN and to investigate the genetic associations between age of onset of AN and age at menarche. Methods A secondary analysis of the Psychiatric Genomics Consortium genome-wide association study (GWAS) of AN was performed, which included 9335 cases and 31,981 screened controls, all from European ancestries. We conducted GWASs of age of onset, early-onset AN (<13 years), and typical-onset AN, and genetic correlation, genetic risk score, and Mendelian randomization analyses. Results Two loci were genome-wide significant in the typical-onset AN GWAS. Heritability estimates (single nucleotide polymorphism-h 2) were 0.01-0.04 for age of onset, 0.16-0.25 for early-onset AN, and 0.17-0.25 for typical-onset AN. Early- and typical-onset AN showed distinct genetic correlation patterns with putative risk factors for AN. Specifically, early-onset AN was significantly genetically correlated with younger age at menarche, and typical-onset AN was significantly negatively genetically correlated with anthropometric traits. Genetic risk scores for age of onset and early-onset AN estimated from independent GWASs significantly predicted age of onset. Mendelian randomization analysis suggested a causal link between younger age at menarche and early-onset AN. Conclusions Our results provide evidence consistent with a common variant genetic basis for age of onset and implicate biological pathways regulating menarche and reproduction.
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Affiliation(s)
- Hunna J. Watson
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- School of Psychology, Curtin University, Perth, Western Australia, Australia
- Division of Paediatrics, School of Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Laura M. Thornton
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Zeynep Yilmaz
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jessica H. Baker
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jonathan R.I. Coleman
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre, King’s College London and South London and Maudsley National Health Service Foundation Trust, London, United Kingdom
| | - Roger A.H. Adan
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, the Netherlands
- Altrecht Eating Disorders Rintveld, Zeist, the Netherlands
| | - Lars Alfredsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ole A. Andreassen
- NORMENT Centre, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Helga Ask
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
| | - Wade H. Berrettini
- Department of Psychiatry, Center for Neurobiology and Behavior, Philadelphia, Pennsylvania
| | - Michael Boehnke
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Ilka Boehm
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Claudette Boni
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
| | - Katharina Buehren
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Josef Bulant
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Roland Burghardt
- Department of Child and Adolescent Psychiatry, Klinikum Frankfurt/Oder, Frankfurt, Germany
| | - Xiao Chang
- Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Sven Cichon
- Department of Psychiatry, University of Minnesota, Minneapolis, Minnesota
- The Center for Eating Disorders at Sheppard Pratt, Baltimore, Maryland
- Institute of Neuroscience and Medicine, Research Center Jülich, Jülich, Germany
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Roger D. Cone
- Life Sciences Institute and Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Philippe Courtet
- Department of Emergency Psychiatry and Post-Acute Care, CHRU Montpellier, University of Montpellier, Montpellier, France
| | - Scott Crow
- Department of Psychiatry, University of Minnesota, Minneapolis, Minnesota
- The Center for Eating Disorders at Sheppard Pratt, Baltimore, Maryland
- Institute of Neuroscience and Medicine, Research Center Jülich, Jülich, Germany
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - James J. Crowley
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Unna N. Danner
- Department of Clinical Psychology, Faculty of Social Sciences, University Utrecht, Utrecht, the Netherlands
- Altrecht Eating Disorders Rintveld, Zeist, the Netherlands
| | - Martina de Zwaan
- Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - George Dedoussis
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | | | - Danielle M. Dick
- Department of Psychology, Commonwealth University, Richmond, Virginia
- College Behavioral and Emotional Health Institute, Commonwealth University, Richmond, Virginia
- Department of Human and Molecular Genetics, Commonwealth University, Richmond, Virginia
| | - Dimitris Dikeos
- First Department of Psychiatry, National and Kapodistrian University of Athens, Medical School, Eginition Hospital, Athens, Greece
| | - Christian Dina
- L’institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - Srdjan Djurovic
- NORMENT Centre, Department of Clinical Science, University of Oslo, Oslo, Norway
- Department of Medical Genetics, University of Bergen, Bergen, Norway
| | | | - Elisa Docampo-Martinez
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública, Barcelona, Spain
| | - Philibert Duriez
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
- GHU Paris Psychiatrie et Neurosciences, CMME, Paris, France
| | - Karin Egberts
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Würzburg, Centre for Mental Health, Würzburg, Germany
| | - Stefan Ehrlich
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Johan G. Eriksson
- Department of Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
- Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Geòrgia Escaramís
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública, Barcelona, Spain
| | - Tõnu Esko
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Xavier Estivill
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública, Barcelona, Spain
- Genomics and Disease, Bioinformatics and Genomics Programme, Centre for Genomic Regulation, Barcelona, Spain
| | - Anne Farmer
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
| | - Fernando Fernández-Aranda
- Department of Psychiatry, University Hospital Bellvitge-IDIBELL and CIBEROBN, Barcelona, Spain
- Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - Manfred M. Fichter
- Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
- Schön Klinik Roseneck Affiliated With the Medical Faculty of the University of Munich, Prien, Germany
| | - Manuel Föcker
- Department of Child and Adolescent Psychiatry, University Hospital Münster, Münster, Germany
| | - Lenka Foretova
- Institute of Neuroscience and Medicine, Research Center Jülich, Jülich, Germany
| | - Andreas J. Forstner
- Institute of Neuroscience and Medicine, Research Center Jülich, Jülich, Germany
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
- Centre for Human Genetics, University of Marburg, Marburg, Germany
| | - Oleksandr Frei
- NORMENT Centre, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Steven Gallinger
- QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, Australia
- Department of Emergency Psychiatry and Post-Acute Care, CHRU Montpellier, University of Montpellier, Montpellier, France
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Ina Giegling
- Department of Psychiatry, Psychotherapy and Psychosomatics, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Johanna Giuranna
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Fragiskos Gonidakis
- First Department of Psychiatry, National and Kapodistrian University of Athens, Medical School, Eginition Hospital, Athens, Greece
| | - Philip Gorwood
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
- CMME (GHU Paris Psychiatrie et Neurosciences), Hôpital Sainte Anne, Paris, France
| | - Mònica Gratacòs
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública, Barcelona, Spain
| | - Sébastien Guillaume
- QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, Australia
- Department of Emergency Psychiatry and Post-Acute Care, CHRU Montpellier, University of Montpellier, Montpellier, France
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Yiran Guo
- Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Hakon Hakonarson
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
- Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Joanna Hauser
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Alexandra Havdahl
- Nic Waals Institute, Lovisenberg Diaconal Hospitaland, Oslo, Norway
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Johannes Hebebrand
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Sietske G. Helder
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
- Zorg op Orde, Delft, the Netherlands
| | - Stefan Herms
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Beate Herpertz-Dahlmann
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Wolfgang Herzog
- Department of General Internal Medicine and Psychosomatics, Heidelberg University Hospital, Heidelberg University, Heidelberg, Germany
| | - Anke Hinney
- Nic Waals Institute, Lovisenberg Diaconal Hospitaland, Oslo, Norway
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Christopher Hübel
- National Institute for Health Research Biomedical Research Centre, King’s College London and South London and Maudsley National Health Service Foundation Trust, London, United Kingdom
| | - James I. Hudson
- Biological Psychiatry Laboratory, McLean Hospital/Harvard Medical School, Boston, Massachusetts
| | - Hartmut Imgart
- Eating Disorders Unit, Parklandklinik, Bad Wildungen, Germany
| | - Stephanie Jamain
- Inserm U955, Institut Mondor de recherches Biomédicales, Laboratoire, Neuro-Psychiatrie Translationnelle, and Fédération Hospitalo-Universitaire de Précision Médecine en Addictologie et Psychiatrie, University Paris-Est-Créteil, Créteil, France
| | - Vladimir Janout
- Faculty of Health Sciences, Palacky University, Olomouc, Czech Republic
| | - Susana Jiménez-Murcia
- Department of Psychiatry, University Hospital Bellvitge-IDIBELL and CIBEROBN, Barcelona, Spain
- Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - Ian R. Jones
- National Centre for Mental Health, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, United Kingdom
| | - Antonio Julià
- Rheumatology Research Group, Vall d’Hebron Research Institute, Barcelona, Spain
| | - Gursharan Kalsi
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
| | - Deborah Kaminská
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Leila Karhunen
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden
- Institute of Public Health and Clinical Nutrition, Department of Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Martien J.H. Kas
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, the Netherlands
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
| | - Pamela K. Keel
- Department of Psychology, Florida State University, Tallahassee, Florida
| | - James L. Kennedy
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Anna Keski-Rahkonen
- Clinicum, Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Kirsty Kiezebrink
- Institute of Applied Health Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Lars Klareskog
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden
- Institute of Public Health and Clinical Nutrition, Department of Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Kelly L. Klump
- Department of Psychology, Michigan State University, Lansing, Michigan
| | - Gun Peggy S. Knudsen
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
| | - Maria C. La Via
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Stephanie Le Hellard
- Department of Clinical Science, K.G. Jebsen Centre for Psychosis Research, Norwegian Centre for Mental Disorders Research, University of Bergen, Bergen, Norway
- Dr. Einar Martens Research Group for Biological Psychiatry, Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Medicine, Laboratory Building, Haukeland University Hospital, Bergen, Norway
| | - Marion Leboyer
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Institute of Neuroscience and Physiology, Gothenburg University, Gothenburg, Sweden
- Inserm U955, Institut Mondor de recherches Biomédicales, Laboratoire, Neuro-Psychiatrie Translationnelle, and Fédération Hospitalo-Universitaire de Précision Médecine en Addictologie et Psychiatrie, University Paris-Est-Créteil, Créteil, France
| | - Dong Li
- Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Lisa Lilenfeld
- Department of Clinical Psychology, the Chicago School of Professional Psychology, Washington, DC
| | - Bochao Lin
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, the Netherlands
| | - Jolanta Lissowska
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, the Netherlands
- Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Jurjen Luykx
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, the Netherlands
- Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Pierre Magistretti
- Department of Psychiatry, University of Lausanne-University Hospital of Lausanne, Lausanne, Switzerland
- BESE Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Salerno, Italy
| | - Mario Maj
- NORMENT Centre, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- Department of Psychiatry, University of Campania “Luigi Vanvitelli,” Naples, Italy
| | - Sara Marsal
- InsideOut Institute for Eating Disorders, The Charles Perkins Centre, the University of Sydney, Sydney, New South Wales, Australia
- Sydney Local Health District, NSW Health, St. Leonards, New South Wales, Australia
- Rheumatology Research Group, Vall d’Hebron Research Institute, Barcelona, Spain
| | - Christian R. Marshall
- Department of Paediatric Laboratory Medicine, the Hospital for Sick Children, Toronto, Ontario, Canada
| | - Morten Mattingsdal
- NORMENT Centre, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- Department of Psychiatry, University of Campania “Luigi Vanvitelli,” Naples, Italy
| | - Ingrid Meulenbelt
- Department of Biomedical Data Science, Leiden University Medical Centre, Leiden, the Netherlands
| | - Nadia Micali
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Department of Pediatrics Gynaecology and Obstetrics, University of Geneva, Geneva, Switzerland
| | - Karen S. Mitchell
- Women’s Health Sciences Division, National Center for PTSD, Boston, Massachusetts
- Department of Psychiatry, Boston University, Boston, Massachusetts
| | | | - Palmiero Monteleone
- Department of Psychiatry, University of Lausanne-University Hospital of Lausanne, Lausanne, Switzerland
- BESE Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Salerno, Italy
| | - Richard Myers
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama
| | - Marie Navratilova
- Department of Cancer, Epidemiology and Genetics, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Ionna Ntalla
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | | | - Roel A. Ophoff
- Center for Neurobehavioral Genetics, University of California at Los Angeles, Los Angeles, California
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Leonid Padyukov
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden
| | | | - Hana Papežová
- Eating Disorders Unit, Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Dalila Pinto
- Division of Psychiatric Genomics, Department of Psychiatry, and Genetics and Genomics Sciences, Icahn School of Medicine at Mount Sinai, New York
| | - Anu Raevuori
- Department of Adolescent Psychiatry, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Clinicum, Department of Public Health, University of Helsinki, Helsinki, Finland
- Department of Adolescent Psychiatry, University of Helsinki, Helsinki, Finland
- Department of Psychiatry, Neurobiology, Pharmacology, and Biotechnologies, University of Pisa, Pisa, Italy
| | - Nicolas Ramoz
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
| | - Ted Reichborn-Kjennerud
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
| | - Valdo Ricca
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
- Department of Health Science, University of Florence, Florence, Italy
| | - Samuli Ripatti
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts
- Department of Psychiatry and Psychotherapy, Charité – Universitätsmedizin, Berlin, Germany
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Department of Biometry, University of Helsinki, Helsinki, Finland
| | - Stephan Ripke
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts
- Department of Psychiatry and Psychotherapy, Charité – Universitätsmedizin, Berlin, Germany
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Department of Biometry, University of Helsinki, Helsinki, Finland
| | - Franziska Ritschel
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Eating Disorders Research and Treatment Center, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Department of Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Marion Roberts
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
| | - Alessandro Rotondo
- Clinicum, Department of Public Health, University of Helsinki, Helsinki, Finland
- Department of Adolescent Psychiatry, University of Helsinki, Helsinki, Finland
- Department of Psychiatry, Neurobiology, Pharmacology, and Biotechnologies, University of Pisa, Pisa, Italy
| | - Dan Rujescu
- Department of Psychiatry, Psychotherapy and Psychosomatics, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Filip Rybakowski
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Eating Disorders Research and Treatment Center, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Department of Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - André Scherag
- Institute of Medical Statistics, Computer and Data Sciences, Jena University Hospital – Friedrich Schiller University Jena, Jena, Germany
- Department of Child and Adolescent Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Stephen W. Scherer
- McLaughlin Centre, University of Toronto, Toronto, Ontario, Canada
- Department of Genetics and Genome Biology and the Center for Applied Genomics, the Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ulrike Schmidt
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre, King’s College London and South London and Maudsley National Health Service Foundation Trust, London, United Kingdom
| | - Laura J. Scott
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Jochen Seitz
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Yasmina Silén
- Clinicum, Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Lenka Šlachtová
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Prague, Czech Republic
| | - P. Eline Slagboom
- Department of Biomedical Data Science, Leiden University Medical Centre, Leiden, the Netherlands
| | - Margarita C.T. Slof-Op ‘t Landt
- Department of Psychiatry, Leiden University Medical Centre, Leiden, the Netherlands
- Rivierduinen Eating Disorders Ursula, Leiden, the Netherlands
| | - Agnieszka Slopien
- Institute of Medical Statistics, Computer and Data Sciences, Jena University Hospital – Friedrich Schiller University Jena, Jena, Germany
- Department of Child and Adolescent Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Sandro Sorbi
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
- IRCSS Fondazione Don Carlo Gnocchi, Florence, Italy
| | - Beata Świątkowska
- Department of Environmental Epidemiology, the Reference Center for Asbestos Exposure and Health Risk Assessment, Lódź, Poland
| | - Alfonso Tortorella
- Adolescent Health Unit, Second Department of Pediatrics, Athens, Greece
- Department of Psychiatry, University of Perugia, Perugia, Italy
| | - Federica Tozzi
- Brain Sciences Department, Stremble Ventures, Limassol, Cyprus
| | - Janet Treasure
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre, King’s College London and South London and Maudsley National Health Service Foundation Trust, London, United Kingdom
| | - Artemis Tsitsika
- Adolescent Health Unit, Second Department of Pediatrics, Athens, Greece
- Department of Psychiatry, University of Perugia, Perugia, Italy
| | - Marta Tyszkiewicz-Nwafor
- Department of Child and Adolescent Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Konstantinos Tziouvas
- Pediatric Intensive Care Unit, “P. & A. Kyriakou” Children's Hospital, University of Athens, Athens, Greece
| | - Annemarie A. van Elburg
- Department of Clinical Psychology, Faculty of Social Sciences, University Utrecht, Utrecht, the Netherlands
- Altrecht Eating Disorders Rintveld, Zeist, the Netherlands
| | - Eric F. van Furth
- Department of Psychiatry, Leiden University Medical Centre, Leiden, the Netherlands
- Rivierduinen Eating Disorders Ursula, Leiden, the Netherlands
| | - Esther Walton
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, Helsinki, Finland
| | - Elisabeth Widen
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, Helsinki, Finland
| | - Stephanie Zerwas
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Internal Medicine VI, Psychosomatic Medicine and Psychotherapy, University Medical Hospital Tuebingen, Tuebingen, Germany
- Centre of Excellence for Eating Disorders, University Tuebingen, Tuebingen, Germany
| | - Stephan Zipfel
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Internal Medicine VI, Psychosomatic Medicine and Psychotherapy, University Medical Hospital Tuebingen, Tuebingen, Germany
- Centre of Excellence for Eating Disorders, University Tuebingen, Tuebingen, Germany
| | - Andrew W. Bergen
- Oregon Research Institute, Eugene, Oregon
- Biorealm Research, Walnut, California
| | - Joseph M. Boden
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
| | - Harry Brandt
- The Center for Eating Disorders at Sheppard Pratt, Baltimore, Maryland
| | - Steven Crawford
- Department of Psychiatry, University of Minnesota, Minneapolis, Minnesota
- The Center for Eating Disorders at Sheppard Pratt, Baltimore, Maryland
- Institute of Neuroscience and Medicine, Research Center Jülich, Jülich, Germany
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Katherine A. Halmi
- New York Presbyterian Hospital-Westchester Division, Weill Cornell Medical College of Cornell University, White Plains, New York
| | - L. John Horwood
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
| | | | - Allan S. Kaplan
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Walter H. Kaye
- Department of Psychiatry, University of California San Diego, San Diego, California
| | - James E. Mitchell
- Department of Psychiatry and Behavioral Science, School of Medicine and Health Sciences, University of North Dakota, Fargo, North Dakota
| | - Catherine M. Olsen
- Cancer Control Group, University of Queensland, Brisbane, Queensland, Australia
| | - John F. Pearson
- Biostatistics and Computational Biology Unit, University of Otago, Christchurch, New Zealand
| | - Nancy L. Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Michael Strober
- Semel Institute for Neuroscience and Human Behavior, University of California at Los Angeles, Los Angeles, California
- David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California
| | - Thomas Werge
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - David C. Whiteman
- QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, Australia
| | - D. Blake Woodside
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Centre for Mental Health, University Health Network, Toronto, Ontario, Canada
- Program for Eating Disorders, University Health Network, Toronto, Ontario, Canada
| | - Scott Gordon
- QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, Australia
- Department of Emergency Psychiatry and Post-Acute Care, CHRU Montpellier, University of Montpellier, Montpellier, France
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Sarah Maguire
- InsideOut Institute for Eating Disorders, The Charles Perkins Centre, the University of Sydney, Sydney, New South Wales, Australia
- Sydney Local Health District, NSW Health, St. Leonards, New South Wales, Australia
- Rheumatology Research Group, Vall d’Hebron Research Institute, Barcelona, Spain
| | - Janne T. Larsen
- National Centre for Register-based Research, Aarhus BSS, Aarhus, Denmark
- Centre for Integrated Register-Based Research, Aarhus University, Aarhus, Denmark
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark
| | - Richard Parker
- QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, Australia
| | - Liselotte V. Petersen
- National Centre for Register-based Research, Aarhus BSS, Aarhus, Denmark
- Centre for Integrated Register-Based Research, Aarhus University, Aarhus, Denmark
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark
| | - Jennifer Jordan
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
- Clinical Research Unit, Canterbury District Health Board, Christchurch, New Zealand
| | - Martin Kennedy
- Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Tracey D. Wade
- College of Education, Psychology and Social Work, Flinders University, Adelaide, South Australia, Australia
| | - Andreas Birgegård
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Paul Lichtenstein
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Landén
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Institute of Neuroscience and Physiology, Gothenburg University, Gothenburg, Sweden
- Inserm U955, Institut Mondor de recherches Biomédicales, Laboratoire, Neuro-Psychiatrie Translationnelle, and Fédération Hospitalo-Universitaire de Précision Médecine en Addictologie et Psychiatrie, University Paris-Est-Créteil, Créteil, France
| | - Nicholas G. Martin
- QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, Australia
| | - Preben Bo Mortensen
- National Centre for Register-based Research, Aarhus BSS, Aarhus, Denmark
- Centre for Integrated Register-Based Research, Aarhus University, Aarhus, Denmark
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark
| | - Gerome Breen
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre, King’s College London and South London and Maudsley National Health Service Foundation Trust, London, United Kingdom
| | - Cynthia M. Bulik
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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6
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Rekkers ME, Aardenburg L, Scheffers M, van Elburg AA, van Busschbach JT. Shifting the Focus: A Pilot Study on the Effects of Positive Body Exposure on Body Satisfaction, Body Attitude, Eating Pathology and Depressive Symptoms in Female Patients with Eating Disorders. Int J Environ Res Public Health 2022; 19:11794. [PMID: 36142068 PMCID: PMC9517204 DOI: 10.3390/ijerph191811794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
One of the most commonly used techniques for the treatment of body image problems in eating disorders (ED) is body exposure (BE). However, evidence of its effectiveness in clinical populations is scarce. In the Positive Body Experience (PBE) protocol, the focus of positive BE is on aesthetic, functional and tactile aspects of the body. The current study evaluates the outcomes of positive BE with regard to changes in attitudinal body image and eating pathology, as well as the factors that influence these changes, in a sample of 84 adult female patients with different EDs who did not receive any other treatment for their EDs during the period in which BE treatment occurred. The results show significant positive changes in attitudinal body image, ED behaviors and depressive symptoms, with depressive symptoms at baseline mediating the changes in attitudinal body image. This study indicates that the PBE protocol is a suitable intervention for reducing negative attitudinal body image in anorexia and bulimia nervosa patients, as well as those with binge eating disorder. Furthermore, the results suggest that positive non-weight-related and functional body satisfaction are strong catalysts for change and that depressive symptoms play an important role in the ability to change. Additional RCTs are needed to gain more insight into the effects of PBE.
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Affiliation(s)
- Marlies E. Rekkers
- Faculty of Social Sciences, Utrecht University, Heidelberglaan 1, 3584 CS Utrecht, The Netherlands
- Department of Human Movement and Education, Windesheim University of Applied Sciences, Campus 2-6, 8017 CA Zwolle, The Netherlands
| | - Lisanne Aardenburg
- GGZ inGeest, Mental Health Institute, Laan van de Helende Meesters 433, 1186 DL Amstelveen, The Netherlands
| | - Mia Scheffers
- Department of Human Movement and Education, Windesheim University of Applied Sciences, Campus 2-6, 8017 CA Zwolle, The Netherlands
| | - Annemarie A. van Elburg
- Faculty of Social Sciences, Utrecht University, Heidelberglaan 1, 3584 CS Utrecht, The Netherlands
- Rintveld, Centre for Eating Disorders, Altrecht Mental Health Institute, 3705 WE Zeist, The Netherlands
| | - Jooske T. van Busschbach
- Department of Human Movement and Education, Windesheim University of Applied Sciences, Campus 2-6, 8017 CA Zwolle, The Netherlands
- University Center of Psychiatry, University Medical Center Groningen, University of Groningen, Rob Giel Onderzoekcentrum, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
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7
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Keller L, Dempfle A, Dahmen B, Schreiber S, Adan RAH, Andreani NA, Danner UN, Eisert A, Fetissov S, Fischmeister FPS, Karwautz A, Konrad K, Kooij KL, Trinh S, van der Vijgh B, van Elburg AA, Zeiler M, Baines J, Seitz J, Herpertz-Dahlmann B. The effects of polyunsaturated fatty acid (PUFA) administration on the microbiome-gut-brain axis in adolescents with anorexia nervosa (the MiGBAN study): study protocol for a longitudinal, double-blind, randomized, placebo-controlled trial. Trials 2022; 23:545. [PMID: 35790976 PMCID: PMC9254435 DOI: 10.1186/s13063-022-06413-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 05/20/2022] [Indexed: 12/03/2022] Open
Abstract
Background Anorexia nervosa (AN) is a severe psychiatric disease that often takes a chronic course due to insufficient treatment options. Emerging evidence on the gut-brain axis offers the opportunity to find innovative treatments for patients with psychiatric disorders. The gut microbiome of patients with AN shows profound alterations that do not completely disappear after weight rehabilitation. In previous studies, the administration of polyunsaturated fatty acids (PUFA) resulted in effects that might be beneficial in the treatment of AN, affecting the microbiome, body weight and executive functions. Therefore, the MiGBAN study aims to examine the effects of a nutritional supplementation with PUFA on the gut microbiome and body mass index (BMI) in patients with AN. Methods This is a longitudinal, double-blind, randomized, placebo-controlled trial. Within 2 years, 60 adolescent patients aged 12 to 19 years with AN will receive either PUFA or placebo for 6 months additional to treatment as usual. After 1 year, the long-term effect of PUFA on the gut microbiome and consecutively on BMI will be determined. Secondary outcomes include improvement of gastrointestinal symptoms, eating disorder psychopathology, and comorbidities. Additionally, the interaction of the gut microbiome with the brain (microbiome-gut-brain axis) will be studied by conducting MRI measurements to assess functional and morphological changes and neuropsychological assessments to describe cognitive functioning. Anti-inflammatory effects of PUFA in AN will be examined via serum inflammation and gut permeability markers. Our hypothesis is that PUFA administration will have positive effects on the gut microbiota and thus the treatment of AN by leading to a faster weight gain and a reduction of gastrointestinal problems and eating disorder psychopathology. Discussion Due to previously heterogeneous results, a systematic and longitudinal investigation of the microbiome-gut-brain axis in AN is essential. The current trial aims to further analyse this promising research field to identify new, effective therapeutic tools that could help improve the treatment and quality of life of patients. If this trial is successful and PUFA supplementation contributes to beneficial microbiome changes and a better treatment outcome, their administration would be a readily applicable additional component of multimodal AN treatment. Trial registration German Clinical Trials Register DRKS00017130. Registered on 12 November 2019. Supplementary Information The online version contains supplementary material available at 10.1186/s13063-022-06413-7.
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Affiliation(s)
- Lara Keller
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital RWTH Aachen, Aachen, Germany.
| | - Astrid Dempfle
- Institute of Medical Informatics and Statistics, Kiel University, Kiel, Germany
| | - Brigitte Dahmen
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital RWTH Aachen, Aachen, Germany
| | - Samira Schreiber
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital RWTH Aachen, Aachen, Germany
| | - Roger A H Adan
- Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands
| | | | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands.,Department of Clinical Psychology, Utrecht University, Utrecht, Netherlands
| | - Albrecht Eisert
- Institute of Clinical Pharmacology, University Hospital RWTH Aachen, Aachen, Germany
| | | | - Florian Ph S Fischmeister
- Institute of Psychology, University of Graz, Graz, Austria.,BioTechMed, Graz, Austria.,Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Andreas Karwautz
- Eating Disorders Unit at the Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | - Kerstin Konrad
- Section for Neuropsychology, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital RWTH Aachen, Aachen, Germany
| | - Karlijn L Kooij
- Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands
| | - Stefanie Trinh
- Institute of Neuroanatomy, University Hospital RWTH Aachen, Aachen, Germany
| | - Benny van der Vijgh
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands.,Department of Clinical Psychology, Utrecht University, Utrecht, Netherlands
| | - Michael Zeiler
- Eating Disorders Unit at the Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | - John Baines
- Max Planck Institute for Evolutionary Biology, Plön, Germany.,Institute for Experimental Medicine, Kiel University, Kiel, Germany
| | - Jochen Seitz
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital RWTH Aachen, Aachen, Germany
| | - Beate Herpertz-Dahlmann
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital RWTH Aachen, Aachen, Germany
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8
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Gilsbach S, Plana MT, Castro-Fornieles J, Gatta M, Karlsson GP, Flamarique I, Raynaud JP, Riva A, Solberg AL, van Elburg AA, Wentz E, Nacinovich R, Herpertz-Dahlmann B. Increase in admission rates and symptom severity of childhood and adolescent anorexia nervosa in Europe during the COVID-19 pandemic: data from specialized eating disorder units in different European countries. Child Adolesc Psychiatry Ment Health 2022; 16:46. [PMID: 35725621 PMCID: PMC9208345 DOI: 10.1186/s13034-022-00482-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 05/31/2022] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The COVID-19 pandemic, associated with confinement and social isolation, seems to have impacted the course of many mental disorders in children and adolescents. An increase in hospital admission rates for juvenile anorexia nervosa (AN) has been documented in many regions of the world. However, data from Europe are scarce. METHODS We asked clinicians in specialized eating disorder units in hospitals of maximum care in France, Germany, Italy, Spain, Sweden, and the Netherlands to report on (i) overall (inpatient and outpatient) and (ii) inpatient admission rates for adolescents with AN during 2019 and 2020. Additionally, a modified version of the COVID Isolation Eating Scale (CIES) was used to assess the child and adolescent psychiatrists' estimations of a possible increase in symptom severity in children and adolescents with AN during the COVID-19 pandemic and to (iii) inquire about the contributing factors perceived by the caring professionals. RESULTS Four out of six representatives of European hospitals described a higher rate of overall admissions during the pandemic. Three hospitals out of six reported an increase in inpatient admissions, and two centres had constant high numbers of admissions of both outpatients and inpatients. The clinicians perceived a higher symptom severity in 2020 than in 2019, especially involving more frequent use of social media, longer duration of exercising, and more restrictive eating. They supposed an increase in social media consumption, a perceived "loss of control", and a lack of in-person assessments and weight controls as the main contributing factors for the deterioration in AN numbers and symptomatology. CONCLUSIONS The COVID-19 pandemic seems to have had a deep impact on symptom severity in AN, which is mirrored by a large increase in admission rates across Europe. An increase in exercise, social media consumption, a perceived "loss of control", and a lack of face-to-face health care seem to have contributed to this development. Further investigation is required to identify which factors may lead to the increase in incidence and deterioration of childhood and adolescent AN. Possible preventive means for the future could include educating paediatricians and health care workers about AN, regular weight assessment, and home-based treatments.
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Affiliation(s)
- Susanne Gilsbach
- grid.1957.a0000 0001 0728 696XDepartment of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, RWTH Aachen University, Neuenhofer Weg 21, 52064 Aachen, Germany
| | - Maria Teresa Plana
- Child and Adolescent Psychiatry and Psychology Department, IDIBAPS, CIBERSAM, Institute Clínic of Neurosciences, Hospital Clínic of Barcelona, University of Barcelona, C. de Villarroel, 170, I2017SGR88108036 Barcelona, Spain
| | - Josefina Castro-Fornieles
- Child and Adolescent Psychiatry and Psychology Department, IDIBAPS, CIBERSAM, Institute Clínic of Neurosciences, Hospital Clínic of Barcelona, University of Barcelona, C. de Villarroel, 170, I2017SGR88108036 Barcelona, Spain
| | - Michela Gatta
- Children and Adolescents Neuropsychiatry Unit, Woman and Child Health Department, University Hospital of Padova, University of Padova, Via VIII Febbraio, 2, 35122 Padua, PD Italy
| | - Gunilla Paulson Karlsson
- grid.1649.a000000009445082XEating Disorder Center Children & Young Adults, The Sahlgrenska University Hospital, University of Gothenburg, Vitaminvägen 17, 416 50 Göteborg, Sweden
| | - Itziar Flamarique
- Child and Adolescent Psychiatry and Psychology Department, IDIBAPS, CIBERSAM, Institute Clínic of Neurosciences, Hospital Clínic of Barcelona, University of Barcelona, C. de Villarroel, 170, I2017SGR88108036 Barcelona, Spain
| | - Jean-Philippe Raynaud
- Service Universitaire de Psychiatrie de l’Enfant et de l’Adolescent, CHU de Toulouse, Hôpital Purpan, Université de Toulouse, Place du Docteur Baylac, 31059 Toulouse cedex 9, France
| | - Anna Riva
- grid.415025.70000 0004 1756 8604Child and Adolescent Mental Health, San Gerardo Hospital, University of Milano Bicocca, Via G. B. Pergolesi, 33, 20900 Monza, MB Italy
| | - Anne-Line Solberg
- grid.1649.a000000009445082XEating Disorder Center Children & Young Adults, The Sahlgrenska University Hospital, University of Gothenburg, Vitaminvägen 17, 416 50 Göteborg, Sweden
| | - Annemarie A. van Elburg
- grid.5477.10000000120346234Faculty of Social Sciences, Utrecht University, Heidelberglaan 1, 3584 CS Utrecht, The Netherlands ,Centre for Eating Disorders, Altrecht Mental Health Institute, Rintveld, 3705WE Zeist, The Netherlands
| | - Elisabet Wentz
- grid.1649.a000000009445082XDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Ätstörningsmottagning Högsbo, Sahlgrenska University Hospital, Lilla Kapplandsgatan 26B, 421 37 Västra Frölunda, Sweden
| | - Renata Nacinovich
- grid.415025.70000 0004 1756 8604Child and Adolescent Mental Health, San Gerardo Hospital, University of Milano Bicocca, Via G. B. Pergolesi, 33, 20900 Monza, MB Italy
| | - Beate Herpertz-Dahlmann
- Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, RWTH Aachen University, Neuenhofer Weg 21, 52064, Aachen, Germany.
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9
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Schröder SS, Danner UN, Spek AA, van Elburg AA. Problematic eating behaviours of autistic women-A scoping review. Eur Eat Disord Rev 2022; 30:510-537. [PMID: 35701074 PMCID: PMC9544491 DOI: 10.1002/erv.2932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 12/21/2022]
Abstract
Aim Eating and feeding behaviours of autistic individuals and related consequences have been mainly investigated in autistic children or in autistic adults with intellectual disabilities. Behaviours such as food selectivity or food neophobia have been shown to persist into adolescence and adulthood and are associated with aversive consequences. However, much less is known about the eating behaviours of autistic adults without intellectual disabilities, especially those of women. By means of a scoping review, we aim to assess the extent of the scientific literature on what is known about the eating behaviours of these women and the possible consequences of such eating behaviour. Method Medline, Cochrane, PubMed and PsycInfo databases were searched according to Preferred Reporting Items for Systematic reviews and Meta‐Analyses (PRISMA) guidelines. Results Five studies met the eligibility criteria and were included in this review. Autistic women not only reported high levels of eating behaviour frequently seen in autism spectrum disorders (ASD), but also high levels of disordered eating behaviour, similar to that of women with eating disorders. Conclusions Autistic women seem to exhibit high levels of eating behaviour frequently seen in ASD as well as disordered eating behaviour. Future research needs to shed light on what underlies these problematic eating behaviours, in order to help to adapt current treatment modalities to meet the unique needs of these women. This scoping review indicates that autistic women exhibit both eating behaviours frequently seen in autism spectrum disorders (ASD) and disordered eating behaviours, similar to those of women with eating disorders. The review also indicates that studies investigating these eating behaviours of autistic women are still very scarce, and those that are available often lack a comprehensive assessment of the ASD diagnosis. Future studies are needed to confirm the findings and to further explore how and why autistic women eat the way they eat, in order to help to adapt current treatment modalities to meet the unique needs of these women.
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Affiliation(s)
- Sabrina S. Schröder
- Altrecht Eating Disorders RintveldZeistThe Netherlands
- Department of Clinical PsychologyUtrecht UniversityUtrechtThe Netherlands
| | - Unna N. Danner
- Altrecht Eating Disorders RintveldZeistThe Netherlands
- Department of Clinical PsychologyUtrecht UniversityUtrechtThe Netherlands
| | | | - Annemarie A. van Elburg
- Altrecht Eating Disorders RintveldZeistThe Netherlands
- Department of Clinical PsychologyUtrecht UniversityUtrechtThe Netherlands
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10
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Mares SHW, Burger J, Lemmens LHJM, van Elburg AA, Vroling MS. Evaluation of the cognitive behavioural theory of eating disorders: A network analysis investigation. Eat Behav 2022; 44:101590. [PMID: 34896868 DOI: 10.1016/j.eatbeh.2021.101590] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE One of the prevailing theories of eating disorders (ED) is the transdiagnostic cognitive behavioural theory of eating disorders, which suggests that certain ED symptoms, such as over-valuation of eating, shape, and weight, may be more central than others. In the present study, network analyses were used to evaluate these assumptions in a patient sample. METHODS Participants were 336 individuals receiving treatment at an expert center for ED in the Netherlands. Eating disorder symptoms were used to create transdiagnostic and diagnosis-specific networks and assess symptom centrality and density of the networks. RESULTS Networks for patients with bulimia nervosa and binge eating disorder confirmed that over-valuation of shape, weight, and eating is the most central symptom in the network. A transdiagnostic network of ED symptoms and separate networks for patients with anorexia nervosa and bulimia nervosa showed that strict dieting was an additional central ED symptom. An exploratory analysis revealed that, although eating disorder symptoms decreased, there were no differences in density of the eating disorder networks before and after treatment with cognitive behavioural therapy. DISCUSSION In conclusion, the current study confirmed that over-valuation of shape, weight, and eating is a central symptom across eating disorders, in agreement with the transdiagnostic cognitive behavioural model of eating disorders. Specifically targeting this symptom in treatment could lead to other symptoms improving as a result.
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Affiliation(s)
- Suzanne H W Mares
- Department of Eating Disorders (Amarum), GGNet Mental Health, Warnsveld, the Netherlands.
| | - Julian Burger
- University of Groningen, University Medical Center Groningen, University Center Psychiatry (UCP) Interdisciplinary Center Psychopathology and Emotion Regulation (ICPE), Groningen, the Netherlands
| | - Lotte H J M Lemmens
- Department of Clinical Psychological Science, Maastricht University, Maastricht, the Netherlands
| | - Annemarie A van Elburg
- Department of Eating Disorders (Amarum), GGNet Mental Health, Warnsveld, the Netherlands; Altrecht Eating Disorders Rintveld, Zeist, the Netherlands; Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands
| | - Maartje S Vroling
- Department of Eating Disorders (Amarum), GGNet Mental Health, Warnsveld, the Netherlands; Radboud University Nijmegen, Behavioural Science Institute, NijCa2re, the Netherlands
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11
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Rekkers ME, Scheffers M, van Busschbach JT, van Elburg AA. Measuring body satisfaction in women with eating disorders and healthy women: appearance-related and functional components in the Body Cathexis Scale (Dutch version). Eat Weight Disord 2021; 26:2665-2672. [PMID: 33591559 PMCID: PMC8602219 DOI: 10.1007/s40519-021-01120-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 01/19/2021] [Indexed: 02/07/2023] Open
Abstract
PURPOSE Differentiating the concept of body satisfaction, especially the functional component, is important in clinical and research context. The aim of the present study is to contribute to further refinement of the concept by evaluating the psychometric properties of the Dutch version of the Body Cathexis Scale (BCS). Differences in body satisfaction between clinical and non-clinical respondents are also explored. METHOD Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used to investigate whether functional body satisfaction can be distinguished as a separate factor, using data from 238 adult female patients from a clinical sample and 1060 women from two non-clinical samples in the Netherlands. Univariate tests were used to identify differences between non-clinical and clinical samples. RESULTS EFA identified functionality as one of three factors, which was confirmed by CFA. CFA showed the best fit for a three-factor model, where functionality, non-weight, and weight were identified as separate factors in both populations. Internal consistency was good and correlations between factors were low. Women in the non-clinical sample scored significantly higher on the BCS than women with eating disorders on all three subscales, with high effect sizes. CONCLUSIONS The three factors of the BCS may be used as subscales, enabling researchers and practitioners to use one scale to measure different aspects of body satisfaction, including body functionality. Use of the BCS may help to achieve a more complete understanding of how people evaluate body satisfaction and contribute to further research on the effectiveness of interventions focussing on body functionality. LEVEL OF EVIDENCE Cross-sectional descriptive study, Level V.
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Affiliation(s)
- Marlies E Rekkers
- Faculty of Social Sciences, Utrecht University, Heidelberglaan 1, 3584 CS, Utrecht, The Netherlands. .,School of Human Movement and Education, Windesheim University of Applied Sciences, Campus 2-6, 8017 CA, Zwolle, The Netherlands.
| | - Mia Scheffers
- School of Human Movement and Education, Windesheim University of Applied Sciences, Campus 2-6, 8017 CA, Zwolle, The Netherlands
| | - Jooske T van Busschbach
- School of Human Movement and Education, Windesheim University of Applied Sciences, Campus 2-6, 8017 CA, Zwolle, The Netherlands.,Rob Giel Research Center, University Medical Center Groningen, University Center of Psychiatry, University of Groningen, P. O Box 30.001, CC72, 9700 RB, Groningen, The Netherlands
| | - Annemarie A van Elburg
- Faculty of Social Sciences, Utrecht University, Heidelberglaan 1, 3584 CS, Utrecht, The Netherlands.,Centre for Eating Disorders, Altrecht Mental Health Institute, Rintveld, 3705WE, Zeist, The Netherlands
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12
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Abstract
BACKGROUND Anorexia nervosa (AN) is a psychiatric disorder with an ego-syntonic nature, causing many patients to perceive their AN as part of their personal identity. Therefore, an important part of treatment is the externalization of the eating disorder, in order to help patients to perceive AN as an external influence. Studies on patient experiences of externalization in treatment for AN are sadly missing. The aims of this study were to investigate, first, patients' perspectives on the relation between identity and anorexia nervosa (AN) and second, their experiences of an externalizing approach during treatment. METHOD A qualitative interview study was conducted including fourteen patients with AN in either Family Based Treatment, the Maudsley Model for Anorexia Nervosa Treatment for Adults, Specialist Supportive Clinical Management-Severe Enduring or Cognitive Behavioural Therapy-Enhanced. RESULTS There are important differences in participants' perceptions on how AN is related to identity. AN was perceived as part of identity, as alien or as a different side of the self. Patients' experiences towards an externalizing approach were ambivalent. Externalization was considered helpful, whilst also evoking a negative response. Participants reported feeling as if all their behaviour was referred to as part of AN, which elicited feelings of not being taken seriously or being wrongfully accused of being dishonest. CONCLUSIONS First, there is considerable variation in the perceived relation between AN and identity. Second, an externalizing approach within treatment may lead to so called epistemic injustice. Awareness of these two facts is of importance for clinicians and the therapeutic relationship because that will help them to refrain from actions that can be perceived as epistemic injustice.
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Affiliation(s)
- Marthe M Voswinkel
- Altrecht Eating Disorders Rintveld, Wenshoek 4, 3705 WE, Zeist, The Netherlands
| | - Cleo Rijkers
- Altrecht Eating Disorders Rintveld, Wenshoek 4, 3705 WE, Zeist, The Netherlands.,Eating Disorders Center, PsyQ Haaglanden, Lijnbaan 4, The Hague, The Netherlands
| | - Johannes J M van Delden
- Department of Medical Humanities, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Wenshoek 4, 3705 WE, Zeist, The Netherlands. .,Department of Clinical Psychology, Utrecht University, Heidelberglaan 1, 3584 CS, Utrecht, The Netherlands.
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13
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Rekkers M, Scheffers M, van Elburg AA, van Busschbach JT. The protocol for positive body experience (PBE); introducing a psychomotor therapy intervention based on positive body exposure targeting negative body image in eating disorders. Body, Movement and Dance in Psychotherapy 2021. [DOI: 10.1080/17432979.2020.1863261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Marlies Rekkers
- Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands
- School of Human Movement and Education, Windesheim University of Applied Sciences, Zwolle, The Netherlands
| | - Mia Scheffers
- School of Human Movement and Education, Windesheim University of Applied Sciences, Zwolle, The Netherlands
| | - Annemarie A. van Elburg
- Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands
- Centre for Eating Disorders, Altrecht Mental Health Institute, Rintveld, Zeist, The Netherlands
| | - Jooske T. van Busschbach
- School of Human Movement and Education, Windesheim University of Applied Sciences, Zwolle, The Netherlands
- Rob Giel Research Center, University of Groningen, University Medical Center Groningen, University Center of Psychiatry, Groningen, The Netherlands
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14
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van Passel B, Danner UN, Dingemans AE, Aarts E, Sternheim LC, Becker ES, van Elburg AA, van Furth EF, Hendriks GJ, Cath DC. Cognitive Remediation Therapy Does Not Enhance Treatment Effect in Obsessive-Compulsive Disorder and Anorexia Nervosa: A Randomized Controlled Trial. Psychother Psychosom 2021; 89:228-241. [PMID: 32074624 DOI: 10.1159/000505733] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 01/03/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Guideline-recommended therapies are moderately successful in the treatment of obsessive-compulsive disorder (OCD) and anorexia nervosa (AN), leaving room for improvement. Cognitive inflexibility, a common trait in both disorders, is likely to prevent patients from engaging in treatment and from fully benefiting from existing therapies. Cognitive remediation therapy (CRT) is a practical augmentation intervention aimed at ameliorating this impairing cognitive style prior to disorder-specific therapy. OBJECTIVE To compare the effectiveness of CRT and a control treatment that was not aimed at enhancing flexibility, named specialized attention therapy (SAT), as add-ons to treatment as usual (TAU). METHODS In a randomized controlled multicenter clinical trial, 71 adult patients with OCD and 61 with AN were randomized to ten twice-weekly sessions with either CRT or SAT, followed by TAU. Patients were evaluated at baseline, post-CRT/SAT, and after 6 and 12 months, with outcomes being quantified using the Yale-Brown Obsessive Compulsive Scale for OCD and the Eating Disorder Examination Questionnaire for AN. RESULTS Across study groups, most importantly CRT+TAU was not superior to control treatment (SAT)+TAU in reducing OCD and AN pathology. Contrary to expectations, SAT+TAU may have been more effective than CRT+TAU in patients being treated for OCD. CONCLUSIONS CRT did not enhance the effect of TAU for OCD and AN more than SAT. Unexpectedly, SAT, the control condition, may have had an augmentation effect on TAU in OCD patients. Although this latter finding may have been due to chance, the effect of SAT delivered as a pretreatment add-on intervention for adults with OCD and AN merits future efforts at replication.
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Affiliation(s)
- Boris van Passel
- Overwaal Center for Anxiety Disorders, OCD, and PTSD, Pro Persona Institute for Integrated Mental Health Care, Nijmegen, The Netherlands, .,Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands,
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands
| | - Alexandra E Dingemans
- Rivierduinen Eating Disorders Ursula, Leiden, The Netherlands.,Institute of Psychology, Leiden University, Leiden, The Netherlands
| | - Emmeke Aarts
- Department of Methodology and Statistics, Utrecht University, Utrecht, The Netherlands
| | - Lot C Sternheim
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands
| | - Eni S Becker
- Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands
| | - Eric F van Furth
- Rivierduinen Eating Disorders Ursula, Leiden, The Netherlands.,Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands
| | - Gert-Jan Hendriks
- Overwaal Center for Anxiety Disorders, OCD, and PTSD, Pro Persona Institute for Integrated Mental Health Care, Nijmegen, The Netherlands.,Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands.,Radboud University Medical Center, Department of Psychiatry, Radboud University, Nijmegen, The Netherlands
| | - Daniëlle C Cath
- Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands.,Altrecht Academic Anxiety Center, Utrecht, The Netherlands.,GGz Drenthe, Department of Specialist Training, Rijksuniversiteit Groningen and University Medical Center Groningen, Department of Psychiatry, Groningen, The Netherlands
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15
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Schilder CMT, Sternheim LC, Aarts E, van Elburg AA, Danner UN. Relationships between educational achievement, intelligence, and perfectionism in adolescents with eating disorders. Int J Eat Disord 2021; 54:794-801. [PMID: 33554341 DOI: 10.1002/eat.23482] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 11/09/2022]
Abstract
OBJECTIVE High performance at school is associated with the risk of eating disorders (EDs), and perfectionism is proposed as an explanatory factor for this association. This study aims to evaluate (a) potential discrepancies between the measured IQ of adolescents with EDs and the IQ that is expected given their educational track, and (b) to what extent perfectionism was associated with educational achievement independent from IQ. METHOD WISC-III Verbal IQ, Performance IQ, and Full Scale IQ of 386 adolescent ED patients were compared with population norms for their educational track, using one-sample t tests. The association between self-oriented perfectionism (Eating Disorder Inventory-2) and educational achievement, adjusted for IQ, was determined with sequential ordinal regression analyses. RESULTS Over 50% of the patients received pre-university education, the most complex educational track. For patients receiving education in the second most complex track, IQ-scores were lower than normative data for that track. For patients receiving pre-university education, the verbal IQ was lower than the norm for that track. Self-oriented perfectionism was associated with educational achievement independent from intelligence. DISCUSSION This study suggests that high educational achievement is common in adolescents with EDs. Particularly for patients who receive education in the most complex tracks the demands at school may be higher than they can handle, based on their IQ. Self-oriented perfectionism contributed to educational achievement independent from IQ. Our results indicate that treatment for EDs should include awareness for the possibility of a too high target level of patients at school and perfectionism.
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Affiliation(s)
| | - Lot C Sternheim
- Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands
| | - Emmeke Aarts
- Department of Methodology and Statistics, Utrecht University, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands
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16
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Watson HJ, Yilmaz Z, Thornton LM, Hübel C, Coleman JRI, Gaspar HA, Bryois J, Hinney A, Leppä VM, Mattheisen M, Medland SE, Ripke S, Yao S, Giusti-Rodríguez P, Hanscombe KB, Purves KL, Adan RAH, Alfredsson L, Ando T, Andreassen OA, Baker JH, Berrettini WH, Boehm I, Boni C, Perica VB, Buehren K, Burghardt R, Cassina M, Cichon S, Clementi M, Cone RD, Courtet P, Crow S, Crowley JJ, Danner UN, Davis OSP, de Zwaan M, Dedoussis G, Degortes D, DeSocio JE, Dick DM, Dikeos D, Dina C, Dmitrzak-Weglarz M, Docampo E, Duncan LE, Egberts K, Ehrlich S, Escaramís G, Esko T, Estivill X, Farmer A, Favaro A, Fernández-Aranda F, Fichter MM, Fischer K, Föcker M, Foretova L, Forstner AJ, Forzan M, Franklin CS, Gallinger S, Giegling I, Giuranna J, Gonidakis F, Gorwood P, Mayora MG, Guillaume S, Guo Y, Hakonarson H, Hatzikotoulas K, Hauser J, Hebebrand J, Helder SG, Herms S, Herpertz-Dahlmann B, Herzog W, Huckins LM, Hudson JI, Imgart H, Inoko H, Janout V, Jiménez-Murcia S, Julià A, Kalsi G, Kaminská D, Kaprio J, Karhunen L, Karwautz A, Kas MJH, Kennedy JL, Keski-Rahkonen A, Kiezebrink K, Kim YR, Klareskog L, Klump KL, Knudsen GPS, La Via MC, Le Hellard S, Levitan RD, Li D, Lilenfeld L, Lin BD, Lissowska J, Luykx J, Magistretti PJ, Maj M, Mannik K, Marsal S, Marshall CR, Mattingsdal M, McDevitt S, McGuffin P, Metspalu A, Meulenbelt I, Micali N, Mitchell K, Monteleone AM, Monteleone P, Munn-Chernoff MA, Nacmias B, Navratilova M, Ntalla I, O'Toole JK, Ophoff RA, Padyukov L, Palotie A, Pantel J, Papezova H, Pinto D, Rabionet R, Raevuori A, Ramoz N, Reichborn-Kjennerud T, Ricca V, Ripatti S, Ritschel F, Roberts M, Rotondo A, Rujescu D, Rybakowski F, Santonastaso P, Scherag A, Scherer SW, Schmidt U, Schork NJ, Schosser A, Seitz J, Slachtova L, Slagboom PE, Slof-Op 't Landt MCT, Slopien A, Sorbi S, Świątkowska B, Szatkiewicz JP, Tachmazidou I, Tenconi E, Tortorella A, Tozzi F, Treasure J, Tsitsika A, Tyszkiewicz-Nwafor M, Tziouvas K, van Elburg AA, van Furth EF, Wagner G, Walton E, Widen E, Zeggini E, Zerwas S, Zipfel S, Bergen AW, Boden JM, Brandt H, Crawford S, Halmi KA, Horwood LJ, Johnson C, Kaplan AS, Kaye WH, Mitchell JE, Olsen CM, Pearson JF, Pedersen NL, Strober M, Werge T, Whiteman DC, Woodside DB, Stuber GD, Gordon S, Grove J, Henders AK, Juréus A, Kirk KM, Larsen JT, Parker R, Petersen L, Jordan J, Kennedy M, Montgomery GW, Wade TD, Birgegård A, Lichtenstein P, Norring C, Landén M, Martin NG, Mortensen PB, Sullivan PF, Breen G, Bulik CM. Genome-wide association study identifies eight risk loci and implicates metabo-psychiatric origins for anorexia nervosa. Nat Genet 2019; 51:1207-1214. [PMID: 31308545 PMCID: PMC6779477 DOI: 10.1038/s41588-019-0439-2] [Citation(s) in RCA: 486] [Impact Index Per Article: 97.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 05/14/2019] [Indexed: 12/14/2022]
Abstract
Characterized primarily by a low body-mass index, anorexia nervosa is a complex and serious illness1, affecting 0.9-4% of women and 0.3% of men2-4, with twin-based heritability estimates of 50-60%5. Mortality rates are higher than those in other psychiatric disorders6, and outcomes are unacceptably poor7. Here we combine data from the Anorexia Nervosa Genetics Initiative (ANGI)8,9 and the Eating Disorders Working Group of the Psychiatric Genomics Consortium (PGC-ED) and conduct a genome-wide association study of 16,992 cases of anorexia nervosa and 55,525 controls, identifying eight significant loci. The genetic architecture of anorexia nervosa mirrors its clinical presentation, showing significant genetic correlations with psychiatric disorders, physical activity, and metabolic (including glycemic), lipid and anthropometric traits, independent of the effects of common variants associated with body-mass index. These results further encourage a reconceptualization of anorexia nervosa as a metabo-psychiatric disorder. Elucidating the metabolic component is a critical direction for future research, and paying attention to both psychiatric and metabolic components may be key to improving outcomes.
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Affiliation(s)
- Hunna J Watson
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- School of Psychology, Curtin University, Perth, Western Australia, Australia
- School of Paediatrics and Child Health, University of Western Australia, Perth, Western Australia, Australia
| | - Zeynep Yilmaz
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Laura M Thornton
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Christopher Hübel
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Jonathan R I Coleman
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
- National Institute for Health Research Biomedical Research Centre, King's College London and South London and Maudsley National Health Service Foundation Trust, London, UK
| | - Héléna A Gaspar
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
- National Institute for Health Research Biomedical Research Centre, King's College London and South London and Maudsley National Health Service Foundation Trust, London, UK
| | - Julien Bryois
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Anke Hinney
- Department of Child and Adolescent Psychiatry, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Virpi M Leppä
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Manuel Mattheisen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Center for Psychiatry Research, Stockholm Health Care Services, Stockholm City Council, Stockholm, Sweden
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - Sarah E Medland
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Stephan Ripke
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA, USA
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin, Berlin, Germany
| | - Shuyang Yao
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Paola Giusti-Rodríguez
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ken B Hanscombe
- Department of Medical and Molecular Genetics, King's College London, Guy's Hospital, London, UK
| | - Kirstin L Purves
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
| | - Roger A H Adan
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
- Center for Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, the Netherlands
- Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Lars Alfredsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tetsuya Ando
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Ole A Andreassen
- NORMENT KG Jebsen Centre, Division of Mental Health and Addiction, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Jessica H Baker
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Wade H Berrettini
- Department of Psychiatry, Center for Neurobiology and Behavior, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Ilka Boehm
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Claudette Boni
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
| | - Vesna Boraska Perica
- Wellcome Sanger Institute, Hinxton, UK
- Department of Medical Biology, School of Medicine, University of Split, Split, Croatia
| | - Katharina Buehren
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Roland Burghardt
- Department of Child and Adolescent Psychiatry, Klinikum Frankfurt/Oder, Frankfurt, Germany
| | - Matteo Cassina
- Clinical Genetics Unit, Department of Woman and Child Health, University of Padova, Padova, Italy
| | - Sven Cichon
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
| | - Maurizio Clementi
- Clinical Genetics Unit, Department of Woman and Child Health, University of Padova, Padova, Italy
| | - Roger D Cone
- Life Sciences Institute and Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - Philippe Courtet
- Department of Emergency Psychiatry and Post-Acute Care, CHRU Montpellier, University of Montpellier, Montpellier, France
| | - Scott Crow
- Department of Psychiatry, University of Minnesota, Minneapolis, MN, USA
| | - James J Crowley
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Unna N Danner
- Center for Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, the Netherlands
| | - Oliver S P Davis
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Martina de Zwaan
- Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - George Dedoussis
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Daniela Degortes
- Department of Neurosciences, University of Padova, Padova, Italy
| | | | - Danielle M Dick
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
| | - Dimitris Dikeos
- Department of Psychiatry, Athens University Medical School, Athens University, Athens, Greece
| | - Christian Dina
- L'institut du thorax, INSERM, CNRS, UNIV Nantes, CHU Nantes, Nantes, France
| | | | - Elisa Docampo
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Laramie E Duncan
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Karin Egberts
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Würzburg, Centre for Mental Health, Würzburg, Germany
| | - Stefan Ehrlich
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Geòrgia Escaramís
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Tõnu Esko
- Estonian Genome Center, University of Tartu, Tartu, Estonia
- Program in Medical and Population Genetics, Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA, USA
| | - Xavier Estivill
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Genomics and Disease, Bioinformatics and Genomics Programme, Centre for Genomic Regulation, Barcelona, Spain
| | - Anne Farmer
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
| | - Angela Favaro
- Department of Neurosciences, University of Padova, Padova, Italy
| | - Fernando Fernández-Aranda
- Department of Psychiatry, University Hospital of Bellvitge -IDIBELL and CIBERobn, Barcelona, Spain
- Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - Manfred M Fichter
- Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University (LMU), Munich, Germany
- Schön Klinik Roseneck affiliated with the Medical Faculty of the University of Munich (LMU), Munich, Germany
| | - Krista Fischer
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - Manuel Föcker
- Department of Child and Adolescent Psychiatry, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Lenka Foretova
- Department of Cancer, Epidemiology and Genetics, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Andreas J Forstner
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
- Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
- Department of Psychiatry (UPK), University of Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Monica Forzan
- Clinical Genetics Unit, Department of Woman and Child Health, University of Padova, Padova, Italy
| | | | - Steven Gallinger
- Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ina Giegling
- Department of Psychiatry, Psychotherapy and Psychosomatics, Martin Luther University of Halle-Wittenberg, Halle, Germany
| | - Johanna Giuranna
- Department of Child and Adolescent Psychiatry, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Fragiskos Gonidakis
- First Psychiatric Department, National and Kapodistrian University of Athens, Medical School, Eginition Hospital, Athens, Greece
| | - Philip Gorwood
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
- CMME, Hôpital Sainte-Anne (GHU Paris Psychiatrie et Neurosciences), Paris Descartes University, Paris, France
| | - Monica Gratacos Mayora
- Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Sébastien Guillaume
- Department of Emergency Psychiatry and Post-Acute Care, CHRU Montpellier, University of Montpellier, Montpellier, France
| | - Yiran Guo
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Hakon Hakonarson
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Konstantinos Hatzikotoulas
- Wellcome Sanger Institute, Hinxton, UK
- Institute of Translational Genomics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Joanna Hauser
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Johannes Hebebrand
- Department of Child and Adolescent Psychiatry, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Sietske G Helder
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
- Zorg op Orde, Leidschendam, the Netherlands
| | - Stefan Herms
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Beate Herpertz-Dahlmann
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Wolfgang Herzog
- Department of General Internal Medicine and Psychosomatics, Heidelberg University Hospital, Heidelberg University, Heidelberg, Germany
| | - Laura M Huckins
- Wellcome Sanger Institute, Hinxton, UK
- Department of Psychiatry, and Genetics and Genomics Sciences, Division of Psychiatric Genomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - James I Hudson
- Biological Psychiatry Laboratory, McLean Hospital/Harvard Medical School, Boston, MA, USA
| | - Hartmut Imgart
- Eating Disorders Unit, Parklandklinik, Bad Wildungen, Germany
| | - Hidetoshi Inoko
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, Isehara, Japan
| | - Vladimir Janout
- Faculty of Health Sciences, Palacky University, Olomouc, Czech Republic
| | - Susana Jiménez-Murcia
- Department of Psychiatry, University Hospital of Bellvitge -IDIBELL and CIBERobn, Barcelona, Spain
- Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - Antonio Julià
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Gursharan Kalsi
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
| | - Deborah Kaminská
- Department of Psychiatry, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jaakko Kaprio
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Leila Karhunen
- Institute of Public Health and Clinical Nutrition, Department of Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Andreas Karwautz
- Eating Disorders Unit, Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | - Martien J H Kas
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
| | - James L Kennedy
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | | | - Kirsty Kiezebrink
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
| | - Youl-Ri Kim
- Department of Psychiatry, Seoul Paik Hospital, Inje University, Seoul, Korea
| | - Lars Klareskog
- Rheumatology Unit, Department of Medicine, Center for Molecular Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Kelly L Klump
- Department of Psychology, Michigan State University, East Lansing, MI, USA
| | - Gun Peggy S Knudsen
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
| | - Maria C La Via
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Stephanie Le Hellard
- Department of Clinical Science, K.G. Jebsen Centre for Psychosis Research, Norwegian Centre for Mental Disorders Research (NORMENT), University of Bergen, Bergen, Norway
- Dr. Einar Martens Research Group for Biological Psychiatry, Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Medicine, Laboratory Building, Haukeland University Hospital, Bergen, Norway
| | - Robert D Levitan
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Dong Li
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Lisa Lilenfeld
- American School of Professional Psychology, Argosy University, Northern Virginia, Arlington, VA, USA
| | - Bochao Danae Lin
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, M Skłodowska-Curie Cancer Center - Oncology Center, Warsaw, Poland
| | - Jurjen Luykx
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Pierre J Magistretti
- BESE Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Department of Psychiatry, University of Lausanne-University Hospital of Lausanne (UNIL-CHUV), Lausanne, Switzerland
| | - Mario Maj
- Department of Psychiatry, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Katrin Mannik
- Estonian Genome Center, University of Tartu, Tartu, Estonia
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Sara Marsal
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Christian R Marshall
- Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Morten Mattingsdal
- NORMENT KG Jebsen Centre, Division of Mental Health and Addiction, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Sara McDevitt
- Department of Psychiatry, University College Cork, Cork, Ireland
- HSE National Clinical Programme for Eating Disorders, Cork, Ireland
| | - Peter McGuffin
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
| | - Andres Metspalu
- Estonian Genome Center, University of Tartu, Tartu, Estonia
- Institute of Molecular and Cell Biology, University of Tartu, Tartu, Estonia
| | - Ingrid Meulenbelt
- Department of Biomedical Data Science, Leiden University Medical Centre, Leiden, the Netherlands
| | - Nadia Micali
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Division of Child and Adolescent Psychiatry, Geneva University Hospital, Geneva, Switzerland
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Karen Mitchell
- National Center for PTSD, VA Boston Healthcare System, Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | | | - Palmiero Monteleone
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Salerno, Italy
| | | | - Benedetta Nacmias
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Florence, Italy
| | - Marie Navratilova
- Department of Cancer, Epidemiology and Genetics, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Ioanna Ntalla
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | | | - Roel A Ophoff
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - Leonid Padyukov
- Rheumatology Unit, Department of Medicine, Center for Molecular Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Aarno Palotie
- Program in Medical and Population Genetics, Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA, USA
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
- Center for Human Genome Research at the Massachusetts General Hospital, Boston, MA, USA
| | - Jacques Pantel
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
| | - Hana Papezova
- Department of Psychiatry, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Dalila Pinto
- Department of Psychiatry, and Genetics and Genomics Sciences, Division of Psychiatric Genomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Raquel Rabionet
- Saint Joan de Déu Research Institute, Saint Joan de Déu Barcelona Children's Hospital, Barcelona, Spain
- Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain
- Department of Genetics, Microbiology and Statistics, University of Barcelona, Barcelona, Spain
| | - Anu Raevuori
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Nicolas Ramoz
- INSERM 1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France
| | - Ted Reichborn-Kjennerud
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Valdo Ricca
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Florence, Italy
- Department of Health Science, University of Florence, Florence, Italy
| | - Samuli Ripatti
- Program in Medical and Population Genetics, Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA, USA
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Institute for Molecular Medicine Finland (FIMM), HiLIFE Unit, University of Helsinki, Helsinki, Finland
| | - Franziska Ritschel
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Eating Disorders Research and Treatment Center, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Marion Roberts
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
- Faculty of Medicine & Health Sciences, University of Aukland, Aukland, New Zealand
| | - Alessandro Rotondo
- Department of Psychiatry, Neurobiology, Pharmacology, and Biotechnologies, University of Pisa, Pisa, Italy
| | - Dan Rujescu
- Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University (LMU), Munich, Germany
- Department of Psychiatry, Psychotherapy and Psychosomatics, Martin Luther University of Halle-Wittenberg, Halle, Germany
| | - Filip Rybakowski
- Department of Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Paolo Santonastaso
- Department of Neurosciences, Padua Neuroscience Center, University of Padova, Padova, Italy
| | - André Scherag
- Institute of Medical Statistics, Computer and Data Sciences, Jena University Hospital, Jena, Germany
| | - Stephen W Scherer
- Department of Genetics and Genomic Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ulrike Schmidt
- National Institute for Health Research Biomedical Research Centre, King's College London and South London and Maudsley National Health Service Foundation Trust, London, UK
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, London, UK
| | | | - Alexandra Schosser
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Jochen Seitz
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Lenka Slachtova
- Department of Pediatrics and Center of Applied Genomics, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - P Eline Slagboom
- Department of Biomedical Data Science, Leiden University Medical Centre, Leiden, the Netherlands
| | - Margarita C T Slof-Op 't Landt
- Center for Eating Disorders Ursula, Rivierduinen, Leiden, the Netherlands
- Department of Psychiatry, Leiden University Medical Centre, Leiden, the Netherlands
| | - Agnieszka Slopien
- Department of Child and Adolescent Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Sandro Sorbi
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Florence, Italy
- IRCSS Fondazione Don Carlo Gnocchi, Florence, Italy
| | - Beata Świątkowska
- Department of Environmental Epidemiology, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - Jin P Szatkiewicz
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - Elena Tenconi
- Department of Neurosciences, University of Padova, Padova, Italy
| | - Alfonso Tortorella
- Department of Psychiatry, University of Naples SUN, Naples, Italy
- Department of Psychiatry, University of Perugia, Perugia, Italy
| | - Federica Tozzi
- Brain Sciences Department, Stremble Ventures, Limassol, Cyprus
| | - Janet Treasure
- National Institute for Health Research Biomedical Research Centre, King's College London and South London and Maudsley National Health Service Foundation Trust, London, UK
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, King's College London, London, UK
| | - Artemis Tsitsika
- Adolescent Health Unit, Second Department of Pediatrics, "P. & A. Kyriakou" Children's Hospital, University of Athens, Athens, Greece
| | - Marta Tyszkiewicz-Nwafor
- Department of Child and Adolescent Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Konstantinos Tziouvas
- Pediatric Intensive Care Unit, "P. & A. Kyriakou" Children's Hospital, University of Athens, Athens, Greece
| | - Annemarie A van Elburg
- Center for Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, the Netherlands
- Faculty of Social and Behavioral Sciences, Utrecht University, Utrecht, the Netherlands
| | - Eric F van Furth
- Center for Eating Disorders Ursula, Rivierduinen, Leiden, the Netherlands
- Department of Psychiatry, Leiden University Medical Centre, Leiden, the Netherlands
| | - Gudrun Wagner
- Eating Disorders Unit, Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | - Esther Walton
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Elisabeth Widen
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Eleftheria Zeggini
- Wellcome Sanger Institute, Hinxton, UK
- Institute of Translational Genomics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Stephanie Zerwas
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Stephan Zipfel
- Department of Internal Medicine VI, Psychosomatic Medicine and Psychotherapy, University Medical Hospital Tuebingen, Tuebingen, Germany
| | - Andrew W Bergen
- BioRealm, LLC, Walnut, CA, USA
- Oregon Research Institute, Eugene, OR, USA
| | - Joseph M Boden
- Christchurch Health and Development Study, University of Otago, Christchurch, New Zealand
| | - Harry Brandt
- The Center for Eating Disorders at Sheppard Pratt, Baltimore, MD, USA
| | - Steven Crawford
- The Center for Eating Disorders at Sheppard Pratt, Baltimore, MD, USA
| | - Katherine A Halmi
- Department of Psychiatry, Weill Cornell Medical College, New York, NY, USA
| | - L John Horwood
- Christchurch Health and Development Study, University of Otago, Christchurch, New Zealand
| | | | - Allan S Kaplan
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Walter H Kaye
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - James E Mitchell
- Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences, Fargo, ND, USA
| | - Catherine M Olsen
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - John F Pearson
- Biostatistics and Computational Biology Unit, University of Otago, Christchurch, New Zealand
| | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Michael Strober
- Department of Psychiatry and Biobehavioral Science, Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Thomas Werge
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - David C Whiteman
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - D Blake Woodside
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Centre for Mental Health, University Health Network, Toronto, Ontario, Canada
- Program for Eating Disorders, University Health Network, Toronto, Ontario, Canada
| | - Garret D Stuber
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Scott Gordon
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Jakob Grove
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Aarhus, Denmark
- Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark
- Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
| | - Anjali K Henders
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia
| | - Anders Juréus
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Katherine M Kirk
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Janne T Larsen
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Aarhus, Denmark
- National Centre for Register-Based Research, Aarhus BSS, Aarhus University, Aarhus, Denmark
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark
| | - Richard Parker
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Liselotte Petersen
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Aarhus, Denmark
- National Centre for Register-Based Research, Aarhus BSS, Aarhus University, Aarhus, Denmark
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark
| | - Jennifer Jordan
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
- Canterbury District Health Board, Christchurch, New Zealand
| | - Martin Kennedy
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Grant W Montgomery
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia
- Queensland Brain Institute, University of Queensland, Brisbane, Queensland, Australia
| | - Tracey D Wade
- School of Psychology, Flinders University, Adelaide, South Australia, Australia
| | - Andreas Birgegård
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Center for Psychiatry Research, Stockholm Health Care Services, Stockholm City Council, Stockholm, Sweden
| | - Paul Lichtenstein
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Claes Norring
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Center for Psychiatry Research, Stockholm Health Care Services, Stockholm City Council, Stockholm, Sweden
| | - Mikael Landén
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Nicholas G Martin
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Preben Bo Mortensen
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Aarhus, Denmark
- National Centre for Register-Based Research, Aarhus BSS, Aarhus University, Aarhus, Denmark
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark
| | - Patrick F Sullivan
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Gerome Breen
- Institute of Psychiatry, Psychology and Neuroscience, Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
- National Institute for Health Research Biomedical Research Centre, King's College London and South London and Maudsley National Health Service Foundation Trust, London, UK
| | - Cynthia M Bulik
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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17
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Verharen JPH, Danner UN, Schröder S, Aarts E, van Elburg AA, Adan RAH. Insensitivity to Losses: A Core Feature in Patients With Anorexia Nervosa? Biol Psychiatry Cogn Neurosci Neuroimaging 2019; 4:995-1003. [PMID: 31262707 DOI: 10.1016/j.bpsc.2019.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/02/2019] [Accepted: 05/02/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND Patients with anorexia nervosa (AN) demonstrate aberrations in choice behavior, including impairments in laboratory measures of decision making. Although a wealth of studies suggest that these aberrations arise from alterations in value processing, it remains unclear by which core component of value processing this is mediated. METHODS We fit trial-by-trial data of patients with AN (n = 60 first cohort, n = 216 second cohort) and healthy control participants (n = 55) performing the Iowa Gambling Task to a computational model based on prospect utility theory. We determined, per participant, the best-fit model parameters and compared these between the groups. RESULTS Analyses revealed a decreased estimate of model parameter λ in patients with AN, indicative of an attenuation of loss-aversive behavior in the Iowa Gambling Task. In comparison, measures of reward sensitivity, value-based learning, and exploration versus exploitation were unaltered in patients with AN. A measurement in a second independent cohort replicated the finding that loss aversion, typically observed in healthy individuals, is reduced in patients with AN. CONCLUSIONS We show that patients with AN, in contrast to healthy control participants, demonstrate reduced loss-aversive behavior. This finding provides important fundamental insights into the decision-making capacity of patients with AN, suggesting alterations in the mechanisms involved in value processing related to negative feedback.
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Affiliation(s)
- Jeroen P H Verharen
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Unna N Danner
- Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands; Altrecht Eating Disorders Rintveld, Zeist, The Netherlands
| | | | - Emmeke Aarts
- Department of Methodology and Statistics, Utrecht University, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands; Altrecht Eating Disorders Rintveld, Zeist, The Netherlands
| | - Roger A H Adan
- Brain Center Rudolf Magnus, Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands; Altrecht Eating Disorders Rintveld, Zeist, The Netherlands; Institute of Physiology and Neuroscience, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
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18
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Berends T, van de Lagemaat M, van Meijel B, Coenen J, Hoek HW, van Elburg AA. Relapse prevention in anorexia nervosa: Experiences of patients and parents. Int J Ment Health Nurs 2018; 27:1546-1555. [PMID: 29573113 DOI: 10.1111/inm.12456] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/18/2018] [Indexed: 11/30/2022]
Abstract
One of the main aims of treatment after successful recovery from anorexia nervosa (AN) is to prevent a relapse. The Guideline Relapse Prevention (GRP) Anorexia Nervosa offers a structured approach to relapse prevention. This study explores how patients and their parents experience working with the guideline. It also describes the factors that support or hinder successful application of the guideline. A descriptive qualitative research design was chosen involving in-depth interviews with seventeen patients with anorexia nervosa and six sets of parents. Patients and family members were generally satisfied with the support provided by the GRP. It contributed significantly to a better understanding of the personal process of relapse. Patients and families valued being able to keep in touch with their professional during the aftercare programme. The GRP supports the patient's use of self-management strategies for relapse prevention.
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Affiliation(s)
- Tamara Berends
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands
| | - Marleen van de Lagemaat
- Rotterdam University of Applied Sciences, Department of Health, Cluster Nursing, Rotterdam, the Netherlands
| | - Berno van Meijel
- Parnassia Psychiatric Institute, Parnassia Academy, The Hague, the Netherlands.,Inholland University of Applied Sciences, Department of Health, Sports and Welfare, Research Group Mental Health Nursing, Cluster Nursing Cluster, Amsterdam, The Netherlands.,Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands.,Academy for Masters in Advanced Nursing Practice, Utrecht, The Netherlands
| | | | - Hans W Hoek
- Parnassia Psychiatric Institute, Parnassia Academy, The Hague, the Netherlands.,Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA.,Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Utrecht Research Group Eating Disorders, Utrecht, The Netherlands.,Department of Social Sciences, Utrecht University, Utrecht, The Netherlands
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19
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Anttila V, Bulik-Sullivan B, Finucane HK, Walters RK, Bras J, Duncan L, Escott-Price V, Falcone GJ, Gormley P, Malik R, Patsopoulos NA, Ripke S, Wei Z, Yu D, Lee PH, Turley P, Grenier-Boley B, Chouraki V, Kamatani Y, Berr C, Letenneur L, Hannequin D, Amouyel P, Boland A, Deleuze JF, Duron E, Vardarajan BN, Reitz C, Goate AM, Huentelman MJ, Kamboh MI, Larson EB, Rogaeva E, St George-Hyslop P, Hakonarson H, Kukull WA, Farrer LA, Barnes LL, Beach TG, Demirci FY, Head E, Hulette CM, Jicha GA, Kauwe JSK, Kaye JA, Leverenz JB, Levey AI, Lieberman AP, Pankratz VS, Poon WW, Quinn JF, Saykin AJ, Schneider LS, Smith AG, Sonnen JA, Stern RA, Van Deerlin VM, Van Eldik LJ, Harold D, Russo G, Rubinsztein DC, Bayer A, Tsolaki M, Proitsi P, Fox NC, Hampel H, Owen MJ, Mead S, Passmore P, Morgan K, Nöthen MM, Rossor M, Lupton MK, Hoffmann P, Kornhuber J, Lawlor B, McQuillin A, Al-Chalabi A, Bis JC, Ruiz A, Boada M, Seshadri S, Beiser A, Rice K, van der Lee SJ, De Jager PL, Geschwind DH, Riemenschneider M, Riedel-Heller S, Rotter JI, Ransmayr G, Hyman BT, Cruchaga C, Alegret M, Winsvold B, Palta P, Farh KH, Cuenca-Leon E, Furlotte N, Kurth T, Ligthart L, Terwindt GM, Freilinger T, Ran C, Gordon SD, Borck G, Adams HHH, Lehtimäki T, Wedenoja J, Buring JE, Schürks M, Hrafnsdottir M, Hottenga JJ, Penninx B, Artto V, Kaunisto M, Vepsäläinen S, Martin NG, Montgomery GW, Kurki MI, Hämäläinen E, Huang H, Huang J, Sandor C, Webber C, Muller-Myhsok B, Schreiber S, Salomaa V, Loehrer E, Göbel H, Macaya A, Pozo-Rosich P, Hansen T, Werge T, Kaprio J, Metspalu A, Kubisch C, Ferrari MD, Belin AC, van den Maagdenberg AMJM, Zwart JA, Boomsma D, Eriksson N, Olesen J, Chasman DI, Nyholt DR, Avbersek A, Baum L, Berkovic S, Bradfield J, Buono RJ, Catarino CB, Cossette P, De Jonghe P, Depondt C, Dlugos D, Ferraro TN, French J, Hjalgrim H, Jamnadas-Khoda J, Kälviäinen R, Kunz WS, Lerche H, Leu C, Lindhout D, Lo W, Lowenstein D, McCormack M, Møller RS, Molloy A, Ng PW, Oliver K, Privitera M, Radtke R, Ruppert AK, Sander T, Schachter S, Schankin C, Scheffer I, Schoch S, Sisodiya SM, Smith P, Sperling M, Striano P, Surges R, Thomas GN, Visscher F, Whelan CD, Zara F, Heinzen EL, Marson A, Becker F, Stroink H, Zimprich F, Gasser T, Gibbs R, Heutink P, Martinez M, Morris HR, Sharma M, Ryten M, Mok KY, Pulit S, Bevan S, Holliday E, Attia J, Battey T, Boncoraglio G, Thijs V, Chen WM, Mitchell B, Rothwell P, Sharma P, Sudlow C, Vicente A, Markus H, Kourkoulis C, Pera J, Raffeld M, Silliman S, Boraska Perica V, Thornton LM, Huckins LM, William Rayner N, Lewis CM, Gratacos M, Rybakowski F, Keski-Rahkonen A, Raevuori A, Hudson JI, Reichborn-Kjennerud T, Monteleone P, Karwautz A, Mannik K, Baker JH, O'Toole JK, Trace SE, Davis OSP, Helder SG, Ehrlich S, Herpertz-Dahlmann B, Danner UN, van Elburg AA, Clementi M, Forzan M, Docampo E, Lissowska J, Hauser J, Tortorella A, Maj M, Gonidakis F, Tziouvas K, Papezova H, Yilmaz Z, Wagner G, Cohen-Woods S, Herms S, Julià A, Rabionet R, Dick DM, Ripatti S, Andreassen OA, Espeseth T, Lundervold AJ, Steen VM, Pinto D, Scherer SW, Aschauer H, Schosser A, Alfredsson L, Padyukov L, Halmi KA, Mitchell J, Strober M, Bergen AW, Kaye W, Szatkiewicz JP, Cormand B, Ramos-Quiroga JA, Sánchez-Mora C, Ribasés M, Casas M, Hervas A, Arranz MJ, Haavik J, Zayats T, Johansson S, Williams N, Dempfle A, Rothenberger A, Kuntsi J, Oades RD, Banaschewski T, Franke B, Buitelaar JK, Arias Vasquez A, Doyle AE, Reif A, Lesch KP, Freitag C, Rivero O, Palmason H, Romanos M, Langley K, Rietschel M, Witt SH, Dalsgaard S, Børglum AD, Waldman I, Wilmot B, Molly N, Bau CHD, Crosbie J, Schachar R, Loo SK, McGough JJ, Grevet EH, Medland SE, Robinson E, Weiss LA, Bacchelli E, Bailey A, Bal V, Battaglia A, Betancur C, Bolton P, Cantor R, Celestino-Soper P, Dawson G, De Rubeis S, Duque F, Green A, Klauck SM, Leboyer M, Levitt P, Maestrini E, Mane S, De-Luca DM, Parr J, Regan R, Reichenberg A, Sandin S, Vorstman J, Wassink T, Wijsman E, Cook E, Santangelo S, Delorme R, Rogé B, Magalhaes T, Arking D, Schulze TG, Thompson RC, Strohmaier J, Matthews K, Melle I, Morris D, Blackwood D, McIntosh A, Bergen SE, Schalling M, Jamain S, Maaser A, Fischer SB, Reinbold CS, Fullerton JM, Guzman-Parra J, Mayoral F, Schofield PR, Cichon S, Mühleisen TW, Degenhardt F, Schumacher J, Bauer M, Mitchell PB, Gershon ES, Rice J, Potash JB, Zandi PP, Craddock N, Ferrier IN, Alda M, Rouleau GA, Turecki G, Ophoff R, Pato C, Anjorin A, Stahl E, Leber M, Czerski PM, Cruceanu C, Jones IR, Posthuma D, Andlauer TFM, Forstner AJ, Streit F, Baune BT, Air T, Sinnamon G, Wray NR, MacIntyre DJ, Porteous D, Homuth G, Rivera M, Grove J, Middeldorp CM, Hickie I, Pergadia M, Mehta D, Smit JH, Jansen R, de Geus E, Dunn E, Li QS, Nauck M, Schoevers RA, Beekman AT, Knowles JA, Viktorin A, Arnold P, Barr CL, Bedoya-Berrio G, Bienvenu OJ, Brentani H, Burton C, Camarena B, Cappi C, Cath D, Cavallini M, Cusi D, Darrow S, Denys D, Derks EM, Dietrich A, Fernandez T, Figee M, Freimer N, Gerber G, Grados M, 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Analysis of shared heritability in common disorders of the brain. Science 2018; 360:eaap8757. [PMID: 29930110 PMCID: PMC6097237 DOI: 10.1126/science.aap8757] [Citation(s) in RCA: 847] [Impact Index Per Article: 141.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 02/07/2017] [Accepted: 04/24/2018] [Indexed: 01/01/2023]
Abstract
Disorders of the brain can exhibit considerable epidemiological comorbidity and often share symptoms, provoking debate about their etiologic overlap. We quantified the genetic sharing of 25 brain disorders from genome-wide association studies of 265,218 patients and 784,643 control participants and assessed their relationship to 17 phenotypes from 1,191,588 individuals. Psychiatric disorders share common variant risk, whereas neurological disorders appear more distinct from one another and from the psychiatric disorders. We also identified significant sharing between disorders and a number of brain phenotypes, including cognitive measures. Further, we conducted simulations to explore how statistical power, diagnostic misclassification, and phenotypic heterogeneity affect genetic correlations. These results highlight the importance of common genetic variation as a risk factor for brain disorders and the value of heritability-based methods in understanding their etiology.
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Affiliation(s)
- Verneri Anttila
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA.
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Brendan Bulik-Sullivan
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Hilary K Finucane
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Raymond K Walters
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Jose Bras
- UK Dementia Research Institute, University College London, London, UK
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, UK
| | - Laramie Duncan
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Psychiatry and Behavioral Science, Stanford University, Stanford, California, USA
| | - Valentina Escott-Price
- Cardiff University, Medical Research Council Center for Neuropsychiatric Genetics & Genomics, Institute of Psychology, Medicine & Clinical Neuroscience, Cardiff, UK
- Dementia Research Institute, Cardiff University, Cardiff, UK
| | - Guido J Falcone
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Padhraig Gormley
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Rainer Malik
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Nikolaos A Patsopoulos
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Neurology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Stephan Ripke
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Charite Universitatsmedizin Berlin, Berlin, Germany
| | - Zhi Wei
- Department of Computer Science, New Jersey Institute of Technology, New Jersey, USA
| | - Dongmei Yu
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Phil H Lee
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Patrick Turley
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Benjamin Grenier-Boley
- INSERM U1167 LabEx DISTALZ, Lille, France
- Institut Pasteur de Lille, U1167, Lille, France
- Université de Lille, U1167, RID-AGE, Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
| | - Vincent Chouraki
- INSERM U1167 LabEx DISTALZ, Lille, France
- Institut Pasteur de Lille, U1167, Lille, France
- Université de Lille, U1167, RID-AGE, Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
- Centre Hosp. Univ Lille, Lille, France
| | - Yoichiro Kamatani
- Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Claudine Berr
- INSERM U1061 - Neuropsychiatry: Epidemiological and Clinical Research, Montpellier, France
- University of Montpellier, Montpellier, France
- Memory Research and Resources Center, Department of Neurology, Montpellier University Hospital Gui de Chauliac, Montpellier, France
| | - Luc Letenneur
- INSERM, UMR 1219, Bordeaux, France
- University of Bordeaux, Bordeaux, France
| | - Didier Hannequin
- Rouen University Hospital, Rouen, France
- Inserm U1245, Rouen, France
| | - Philippe Amouyel
- INSERM U1167 LabEx DISTALZ, Lille, France
- Institut Pasteur de Lille, U1167, Lille, France
- Université de Lille, U1167, RID-AGE, Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
- Centre Hosp. Univ Lille, Lille, France
| | - Anne Boland
- Centre National de Recherche en Génomique Humaine (CNRGH), Institut de biologie François Jacob, CEA, Evry, France
| | - Jean-François Deleuze
- Centre National de Recherche en Génomique Humaine (CNRGH), Institut de biologie François Jacob, CEA, Evry, France
| | - Emmanuelle Duron
- Department of Gerontology, Hôpital Broca, AH-HP, Paris, France
- Hôpital Paul Brousse Université Paris Sud XI, Le Kremlin-Bicêtre, Paris, France
| | - Badri N Vardarajan
- Gertrude H. Sergievsky Center and Dept of Neurology, Columbia University, New York, NY, USA
| | | | - Alison M Goate
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Matthew J Huentelman
- Translational Genomics Research Institute, Neurogenomics Division, Phoenix, AZ, USA
| | | | - Eric B Larson
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
- Department of Medicine, University of Washington, WA, USA
| | - Ekaterina Rogaeva
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
| | - Peter St George-Hyslop
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - Hakon Hakonarson
- Center for Applied Genomics of The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Walter A Kukull
- National Alzheimer Coordinating Center (NACC), Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Lindsay A Farrer
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Lisa L Barnes
- Rush Alzheimers Disease Center, Chicago, IL, USA
- Department of Neurological Sciences, Rush Medical College, Chicago, IL, USA
- Department of Behavioral Sciences, Rush Medical College, Chicago, IL, USA
| | | | | | - Elizabeth Head
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
| | - Christine M Hulette
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Gregory A Jicha
- College of Medicine, University of Kentucky, Lexington, KY, USA
| | - John S K Kauwe
- Department of Biology, Brigham Young University, Provo, UT, USA
| | - Jeffrey A Kaye
- Layton Aging & Alzheimer's Disease Center, Oregon Health & Science University, Portland, OR, USA
| | - James B Leverenz
- Lou Ruvo Center for Brain Health, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Allan I Levey
- Department of Neurology, School of Medicine, Emory University, Atlanta, GA, USA
| | - Andrew P Lieberman
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Vernon S Pankratz
- University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Wayne W Poon
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, CA, USA
| | - Joseph F Quinn
- Department of Neurology, Oregon Health and Science University, Portland, OR, USA
- Department of Neurology and Parkinson's Disease Research Education and Clinical Care Center (PADRECC), Portland Veterans Affairs Medical Center, Portland, OR, USA
| | - Andrew J Saykin
- Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Lon S Schneider
- Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Amanda G Smith
- Byrd Alzheimer's Institute, University of South Florida, Tampa, FL, USA
| | - Joshua A Sonnen
- Department of Pathology, University of Utah, Salt Lake City, UT, USA
- Department of Pathology, University of Washington, Seattle, WA, USA
| | | | - Vivianna M Van Deerlin
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Linda J Van Eldik
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
| | - Denise Harold
- School of Biotechnology, Dublin City University, Glasnevin, Dublin, Ireland
| | - Giancarlo Russo
- Functional Genomics Center Zurich, ETH/UZH-Zurich, Zurich, Switzerland
| | - David C Rubinsztein
- Department of Medical Genetics, Cambridge Institute for Medical Research, Cambridge, UK
- UK Dementia Research Institute, Cambridge, UK
| | | | - Magda Tsolaki
- 1st and 3rd Departments of Neurology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Greek Association of Alzheimer's Disease and Related Disorders, Thessaloniki, Greece
| | - Petra Proitsi
- Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Nick C Fox
- Dementia Research Centre, UCL Institute of Neurology, London, UK
- UK Dementia Research Institute, University College London, London, UK
| | - Harald Hampel
- Sorbonne University, GRC n° 21, Alzheimer Precision Medicine (APM), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
- Institute of Memory and Alzheimer's Disease (IM2A), Department of Neurology, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
- Brain & Spine Institute (ICM), INSERM U 1127, CNRS UMR 7225, Paris, France
- AXA Research Fund & Sorbonne University Chair, Paris, France
| | - Michael J Owen
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
- Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, Cardiff, UK
| | - Simon Mead
- Institute of Prion Diseases and MRC Prion Unit, University College London, London, UK
| | - Peter Passmore
- Centre for Public Health, Queens University Belfast, Belfast, UK
| | - Kevin Morgan
- Human Genetics, School of Life Sciences, University of Nottingham, Nottingham UK
| | - Markus M Nöthen
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
- Institute of Human Genetics, School of Medicine, University of Bonn & University Hospital Bonn, Bonn, Germany
| | - Martin Rossor
- Department of Neurodegeneration, UCL Institute of Neurology, London, UK
| | - Michelle K Lupton
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
- Institute of Psychiatry Psychology and Neuroscience, Kings College London, UK
| | - Per Hoffmann
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
- Institute of Human Genetics, School of Medicine, University of Bonn & University Hospital Bonn, Bonn, Germany
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Human Genomics Research Group, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg University Hospital, Erlangen, Germany
| | - Brian Lawlor
- Department of Psychiatry and Global Brain Health Institute, Trinity College, Dublin, Ireland
| | - Andrew McQuillin
- Division of Psychiatry, Molecular Psychiatry Laboratory,University College London, London, UK
| | - Ammar Al-Chalabi
- Maurice Wohl Clinical Neuroscience Institute, Department of Basic and Clinical Neuroscience, King's College London, London, UK
- King's College Hospital, London, UK
| | - Joshua C Bis
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Agustin Ruiz
- Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain and Universitat Internacional de Catalunya, Barcelona, Spain
- Facultat de Medicina i Ciències de la Salut, Universitat Internacional de Catalunya (UIC), Barcelona, Spain
| | - Mercè Boada
- Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain and Universitat Internacional de Catalunya, Barcelona, Spain
| | - Sudha Seshadri
- Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, Texas, USA
- Neurology and Neurogenetics Core, Framingham Heart Study, Framingham, MA, USA
- School of Medicine, Boston University, Boston, MA, USA
| | - Alexa Beiser
- School of Public Health, Boston University, Boston, MA, USA
- Framingham Heart Study, Framingham, MA, USA
- School of Medicine, Boston University, Boston, MA, USA
| | - Kenneth Rice
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Sven J van der Lee
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Philip L De Jager
- Center for Translational & Computational Neuroimmunology, Columbia University Medical Center, New York, NY, USA
| | - Daniel H Geschwind
- Neurogenetics Program, Departments of Neurology and Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Center For Autism Research and Treatment, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Institute for Precision Health, University of California, Los Angeles, Los Angeles, CA, USA
| | | | - Steffi Riedel-Heller
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Jerome I Rotter
- Institute for Translational Genomics and Population Sciences, Departments of Pediatrics and Medicine, LABioMed at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Gerhard Ransmayr
- Department of Neurology II, Kepler University Clinic, Johannes Kepler University, Linz, Austria
| | - Bradley T Hyman
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Carlos Cruchaga
- Washington University School of Medicine, St. Louis, MO, USA
| | - Montserrat Alegret
- Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain and Universitat Internacional de Catalunya, Barcelona, Spain
| | - Bendik Winsvold
- Communication and Research Unit for Musculoskeletal Disorders (FORMI), Oslo University Hospital, Oslo, Norway
- Department of Neurology, Oslo University Hospital, Oslo, Norway
| | - Priit Palta
- Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Kai-How Farh
- Illumina Inc., San Diego, CA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Ester Cuenca-Leon
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | | | - Tobias Kurth
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Lannie Ligthart
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Gisela M Terwindt
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tobias Freilinger
- Institute for Stroke and Dementia Research, Klinikum der Universitaet Muenchen, Munich, Germany
- Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, University of Tuebingen, Tuebingen, Germany
| | - Caroline Ran
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Scott D Gordon
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Guntram Borck
- Institute of Human Genetics, University of Ulm, Ulm, Germany
| | - Hieab H H Adams
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, the Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories and Finnish Cardiovascular Research Center-Tampere, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Juho Wedenoja
- Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | | | - Markus Schürks
- Department of Neurology, University Hospital Essen, Germany
| | | | - Jouke-Jan Hottenga
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Avera Institute for Human Genetics, Sioux Falls, SD, USA
| | - Brenda Penninx
- Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands
| | - Ville Artto
- Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland
| | - Mari Kaunisto
- Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
| | - Salli Vepsäläinen
- Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland
| | | | - Grant W Montgomery
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Mitja I Kurki
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
| | - Eija Hämäläinen
- Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
| | - Hailiang Huang
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Jie Huang
- Boston VA Research Institute, Boston, MA, USA
- Brigham Women's Hospital Division of Aging, Harvard Medical School, Boston, MA, USA
| | - Cynthia Sandor
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - Caleb Webber
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
- Dementia Research Institute, Cardiff University, Cardiff, UK
| | - Bertram Muller-Myhsok
- Max Planck Institute of Psychiatry, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Stefan Schreiber
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
- Clinic of Internal Medicine I, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Veikko Salomaa
- National Institute for Health and Welfare, Helsinki, Finland
| | - Elizabeth Loehrer
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Alfons Macaya
- Pediatric Neurology Research Group, Vall d'Hebron Research Institute, Autonomous University of Barcelona, Barcelona, Spain
| | - Patricia Pozo-Rosich
- Headache Unit, Neurology Department, Hospital Vall d'Hebron, Barcelona, Spain
- Headache Research Group, VHIR, Autonomous University of Barcelona, Barcelona, Spain
| | - Thomas Hansen
- Danish Headache Center, Rigshospitalet Glostrup and University of Copenhagen, Copenhagen, Denmark
- Institute of Biological Psychiatry, Roskilde, Denmark
| | - Thomas Werge
- Institute of Biological Psychiatry, Roskilde, Denmark
- Department of Clinical Sciences, University of Copenhagen, Copenhagen, Denmark
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Andres Metspalu
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Christian Kubisch
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Andrea C Belin
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Arn M J M van den Maagdenberg
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - John-Anker Zwart
- Division of Clinical Neuroscience, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Dorret Boomsma
- Netherlands Twin Register, Vrije Universiteit, Amsterdam, the Netherlands
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | - Jes Olesen
- Danish Headache Center, Rigshospitalet Glostrup and University of Copenhagen, Copenhagen, Denmark
| | - Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Dale R Nyholt
- Statistical and Genomic Epidemiology Laboratory, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Andreja Avbersek
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, London, UK
| | - Larry Baum
- Centre for Genomic Sciences, University of Hong Kong, Hong Kong
| | - Samuel Berkovic
- Epilepsy Research Centre, University of Melbourne, Heidelberg, Australia
| | | | - Russell J Buono
- Cooper Medical School of Rowan University, Camden, NJ, USA
- Thomas Jefferson University Hospital, Philadelphia, PA, USA
- Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Claudia B Catarino
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, London, UK
- Epilepsy Society, Chalfont-St-Peter, Bucks, UK
| | - Patrick Cossette
- Centre de Recherche du Centre Hospitalier de l'Universite de Montreal and Department of Neurosciences, Université de Montréal, Montréal, Canada
| | - Peter De Jonghe
- Neurogenetics Group, VIB-CMN, Antwerp, Belgium
- University of Antwerp, Antwerp, Belgium
- Department of Neurology, Antwerp University Hospital, Antwerp, Belgium
| | - Chantal Depondt
- Department of Neurology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Dennis Dlugos
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Thomas N Ferraro
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, USA
- Department of Psychiatry, Center for Neurobiology and Behavior, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | | | | | - Jennifer Jamnadas-Khoda
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, London, UK
- Institute of Mental Health, University of Nottingham, Nottingham, UK
| | - Reetta Kälviäinen
- Epilepsy Center/Neurocenter, Kuopio University Hospital, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Wolfram S Kunz
- Department of Epileptology, University Bonn Medical Center, Bonn, Germany
- Institute of Experimental Epileptology and Cognition Research, University Bonn Medical Center, Bonn, Germany
| | - Holger Lerche
- Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, University of Tuebingen, Tuebingen, Germany
| | - Costin Leu
- Department of Clinical and Experimental Epilepsy, NIHR University College London Hospitals Biomedical Research Centre, UCL Institute of Neurology, London
| | - Dick Lindhout
- Department of Genetics, University Medical Center Utrecht, the Netherlands
- Epilepsy Foundation in the Netherlands (SEIN), Heemstede, the Netherlands
| | - Warren Lo
- Departments of Pediatrics and Neurology, Ohio State University, Columbus, OH, USA
- Nationwide Children's Hospital, Columbus, OH, USA
| | - Daniel Lowenstein
- Department of Neurology, University of California, San Francisco, CA, USA
| | - Mark McCormack
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Rikke S Møller
- Danish Epilepsy Centre, Filadelfia, Dianalund, Denmark
- Institute for Regional Health Services, University of Southern Denmark, Odense, Denmark
| | | | - Ping-Wing Ng
- United Christian Hospital, Hong Kong
- Hong Kong Sanatorium and Hospital, Hong Kong
| | - Karen Oliver
- Epilepsy Research Centre, University of Melbourne, Austin Health, Heidelberg, Australia
| | - Michael Privitera
- Department of Neurology, University of Cincinnati, Cincinnati, OH, USA
- UC Gardner Neuroscience Institute, Cincinnati, OH, USA
| | - Rodney Radtke
- Department of Neurology, Duke University School of Medicine, Durham, NC, USA
| | | | - Thomas Sander
- Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany
| | - Steven Schachter
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Christoph Schankin
- Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Switzerland
- Department of Neurology, University of Munich Hospital, Grosshadern, University of Munich, Germany
| | - Ingrid Scheffer
- Department of Medicine, The University of Melbourne, Austin Health, Melbourne, Victoria, Australia
- Department of Paediatrics, Royal Children's Hospital, The University of Melbourne, Melbourne, Victoria, Australia
- Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
| | - Susanne Schoch
- Institute of Neuropathology, Bonn University Medical School, Bonn, Germany
| | - Sanjay M Sisodiya
- UCL Institute of Neurology, London, UK
- Chalfont Centre for Epilepsy, Bucks, UK
| | | | - Michael Sperling
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Pasquale Striano
- Pediatric Neurology and Muscular Diseases Unit-Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health University of Genoa, "G. Gaslini" Institute, Genova, Italy
| | - Rainer Surges
- Department of Epileptology, University Hospital Bonn, Bonn, Germany
- Section of Epileptology, Department of Neurology, University Hospital RWTH Aachen, Aachen, Germany
| | - G Neil Thomas
- Institute of Applied Health Research, University of Birmingham, UK
| | - Frank Visscher
- Department of Neurology, Admiraal De Ruyter Hospital, Goes, The Netherlands
| | - Christopher D Whelan
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Federico Zara
- Laboratory of Neurogenetics, G. Gaslini Institute, Genova, Italy
| | - Erin L Heinzen
- Institute for Genomic Medicine, Columbia University Medical Center, New York, NY, USA
| | - Anthony Marson
- University of Liverpool, Liverpool, UK
- Walton Centre NHS Foundation Trust, Liverpool, UK
| | - Felicitas Becker
- Department of Neurology and Epileptology, University Hospital Tuebingen, Tuebingen, Germany
- Department of Neurology, University of Ulm, Ulm, Germany
| | | | - Fritz Zimprich
- Department of Neurology, Medical University of Vienna, Austria
| | - Thomas Gasser
- Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Raphael Gibbs
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Peter Heutink
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Maria Martinez
- INSERM U1220, IRSD, Toulouse, France
- Université Paul Sabatier, Toulouse, France
| | | | - Manu Sharma
- Centre for Genetic Epidemiology, Institute for Clinical Epidemiology and Applied Biometery, University of Tubingen, Germany
| | | | - Kin Y Mok
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, UK
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong Special Administrative Region, China
| | - Sara Pulit
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, UK
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | | | - Elizabeth Holliday
- Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia
| | - John Attia
- University of Newcastle, Callaghan, Australia
- Hunter Medical Research Institute, Newcastle, Australia
| | - Thomas Battey
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Division of Neurocritical Care and Emergency Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Giorgio Boncoraglio
- Department of Cerebrovascular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
- PhD Program in Neuroscience, University Milano-Bicocca, Monza, Italy
| | - Vincent Thijs
- Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
- Austin Health, Heidelberg, Australia
| | - Wei-Min Chen
- University of Virginia Center for Public Health Genomics, University of Virginia, Charlottesville, VA, USA
| | - Braxton Mitchell
- Dept of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
- Geriatrics Research and Education Clinical Center, Baltimore Veterans Administration Medical Center, Baltimore, MD, USA
| | - Peter Rothwell
- Centre for Prevention of Stroke and Dementia, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Pankaj Sharma
- Institute of Cardiovascular Research, Royal Holloway University of London, London, UK
- Ashford & St Peters NHS Foundation Trust, Surrey, UK
| | | | - Astrid Vicente
- Instituto Nacional de Saúde Doutor Ricardo Jorge, Lisboa, Portugal
- Biosystems and Integrative Sciences Institute - BioISI, University of Lisboa, Lisboa, Portugal
| | - Hugh Markus
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Christina Kourkoulis
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Massachusetts General Hospital, Boston, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Joana Pera
- Department of Neurology, Jagiellonian University Medical College, Kraków, Poland
| | - Miriam Raffeld
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Massachusetts General Hospital, Boston, MA, USA
- The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Scott Silliman
- Department of Neurology, College of Medicine-Jacksonville, University of Florida, Jacksonville, FL, USA
| | | | - Laura M Thornton
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - N William Rayner
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Department of Human Genetics, Wellcome Sanger Institute, Hinxton, Cambridgeshire, UK
| | - Cathryn M Lewis
- MRC Social, Genetic and Developmental Psychiatry Centre, King's College London, London, UK
| | - Monica Gratacos
- Genes and Disease Programme, Centre for Genomic Regulation (CRG), Barcelona, Spain
| | - Filip Rybakowski
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poland
| | | | - Anu Raevuori
- Department of Adolescent Psychiatry, Helsinki University Central Hospital, Helsinki, Finland
- Clinicum, Department of Public Health, University of Helsinki, Finland
| | - James I Hudson
- Harvard Medical School/McLean Hospital, Belmont, MA, USA
| | | | - Palmiero Monteleone
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno,Italy
| | - Andreas Karwautz
- Eating Disorders Unit, Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | - Katrin Mannik
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Jessica H Baker
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - Sara E Trace
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Oliver S P Davis
- MRC Integrative Epidemiology Unit and Bristol Medical School, University of Bristol, Bristol, UK
| | - Sietske G Helder
- Zorg op Orde BV, Leidschendam, The Netherlands
- MRC Social, Genetic and Developmental Psychiatry Centre, King's College London, London, UK
| | - Stefan Ehrlich
- Division of Psychological & Social Medicine and Developmental Neurosciences, Faculty of Medicine, Technischen Universität Dresden, Dresden, Germany
| | - Beate Herpertz-Dahlmann
- Department of Child & Adolescent Psychiatry & Psychosomatic Medicine of University Clinics, RWTH Aachen, Aachen, Germany
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
- Faculty of Social Sciences, University of Utrecht, Utrecht, the Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
- Faculty of Social Sciences, University of Utrecht, Utrecht, the Netherlands
| | - Maurizio Clementi
- Medical Genetics Unit, Department SDB, University of Padova, Padova, Italy
| | - Monica Forzan
- UOC Genetica ed Epidemiologica Clinica Az. Ospedaliera, Padova, Italy
| | - Elisa Docampo
- Department of Human Genetics, CHU Sart-Tilman, University of Liège, Liège, Belgium
- Department of Rheumatology, CHU Sart-Tilman, University of Liège, Liège, Belgium
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, Cancer Center and M. Sklodowska-Curie Institute of Oncology, Warsaw, Poland
| | - Joanna Hauser
- Department of Psychiatry, University of Medical Sciences, Poznan, Poland
| | | | - Mario Maj
- Department of Mental and Physical Health and Preventive Medicine, University of Campania "luigi Vanvitelli", Naples, Italy
| | - Fragiskos Gonidakis
- Eating Disorders Unit, 1st Psychiatric Department, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Hana Papezova
- Eating Disorders Unit, Department of Psychiatry, First Faculty of Medicine, Charles University, Prague, Czech Republic
- General University Hospital, Prague, Czech Republic
| | - Zeynep Yilmaz
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | | | - Stefan Herms
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
- Institute of Human Genetics, School of Medicine, University of Bonn & University Hospital Bonn, Bonn, Germany
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Human Genomics Research Group, Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | - Raquel Rabionet
- Institut de Recerca Sant Joan de Déu, Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain
- Department of Genetics, Microbiology & Statistics, Faculty of Biology, University of Barcelona, Barcelona, Spain
- Centre for Genomic Regulation (CRG), Barcelona, Spain
| | - Danielle M Dick
- Departments of Psychology and Human & Molecular Genetics, College Behavioral and Emotional Health Institute, Virginia Commonwealth University, Richmond, Virginia
| | - Samuli Ripatti
- Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Ole A Andreassen
- NORMENT, Div. of Mental Health and Addiction, University of Oslo, Oslo, Norway
- Oslo University Hospital, Oslo, Norway
| | - Thomas Espeseth
- NORMENT, Div. of Mental Health and Addiction, University of Oslo, Oslo, Norway
- Department of Psychology, University of Oslo, Norway
- K. G. Jebsen Centre for Research on Neuropsychiatric Disorders, University of Bergen, Bergen, Norway
| | - Astri J Lundervold
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- K. G. Jebsen Centre for Research on Neuropsychiatric Disorders, University of Bergen, Bergen, Norway
| | - Vidar M Steen
- NORMENT, K.G. Jebsen Center for Psychosis Research, Department of Clinical Science, University of Bergen, Norway
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
| | - Dalila Pinto
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences, and Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- The Mindich Child Health & Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Stephen W Scherer
- McLaughlin Centre and Department of Molecular Genetics, University of Toronto, Toronto, Canada
- The Centre for Applied Genomics, Hospital for Sick Children, Toronto, Canada
| | | | - Alexandra Schosser
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
- Zentren für Seelische Gesundheit, BBRZ-Med, Vienna, Austria
| | - Lars Alfredsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Leonid Padyukov
- Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden
| | | | - James Mitchell
- School of Medicine, University of North Dakota, Grand Forks, ND, USA
- Neuropsychiatric Research Institute, Fargo, ND, USA
| | - Michael Strober
- Department of Psychiatry & Biobehavioral Sciences, Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Andrew W Bergen
- BioRealm, Walnut, California, USA
- Oregon Research Institute, Eugene, OR, USA
| | - Walter Kaye
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | | | - Bru Cormand
- Institut de Recerca Sant Joan de Déu, Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain
- Department of Genetics, Microbiology & Statistics, Faculty of Biology, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Josep Antoni Ramos-Quiroga
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Cristina Sánchez-Mora
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Ribasés
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - Miguel Casas
- Universitat Autònoma de Barcelona, Barcelona, Spain
- Programa Corporatiu "Neurodevelopment Disorders along Life Span", Institut Català de la Salut, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Clinica Galatea y PAIMM, Mental Health Program for Impaired Physicians, Barcelona, Spain
| | - Amaia Hervas
- Child and Adolescent Mental Health Unit, Hospital Universitario Mútua de Terrassa, Barcelona, Spain
| | | | - Jan Haavik
- K.G. Jebsen Centre for Neuropsychiatric Disorders, Department of Biomedicine, University of Bergen, Norway
- Division of Psychiatry, Haukeland University Hospital, Bergen, Norway
| | - Tetyana Zayats
- K.G. Jebsen Centre for Neuropsychiatric Disorders, Department of Biomedicine, University of Bergen, Norway
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
| | - Stefan Johansson
- K.G. Jebsen Centre for Neuropsychiatric Disorders, Department of Clinical Science, University of Bergen, Norway
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
| | - Nigel Williams
- Cardiff University, Medical Research Council Center for Neuropsychiatric Genetics & Genomics, Institute of Psychology, Medicine & Clinical Neuroscience, Cardiff, UK
| | - Astrid Dempfle
- Institute of Medical Informatics and Statistics, Kiel University, Kiel, Germany
| | - Aribert Rothenberger
- Child and Adolescent Psychiatry/Psychotherapy, University Medical Center, Goettingen, Germany
| | - Jonna Kuntsi
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Robert D Oades
- Clinic for Child and Adolescent Psychiatry and Psychotherapy, University of Duisburg-Essen, Essen, Germany
| | - Tobias Banaschewski
- Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Barbara Franke
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Jan K Buitelaar
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Centre, Nijmegen, The Netherlands
- Karakter Child and Adolescent Psychiatry University Center, Nijmegen, The Netherlands
| | - Alejandro Arias Vasquez
- Department of Psychiatry & Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alysa E Doyle
- Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Andreas Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Klaus-Peter Lesch
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
- Department of Translational Psychiatry, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Maastricht, The Netherlands
- Division of Molecular Psychiatry, Center of Mental Health, University of Wuerzburg, Wuerzburg, Germany
| | - Christine Freitag
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany
| | - Olga Rivero
- Division of Molecular Psychiatry, Center of Mental Health, University of Wuerzburg, Wuerzburg, Germany
| | - Haukur Palmason
- Landspitali National University Hospital, Reykjavik, Iceland
| | - Marcel Romanos
- Center of Mental Health, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Kate Langley
- School of Psychology, Cardiff University, UK
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Marcella Rietschel
- Central Institute of Mental Health, Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Stephanie H Witt
- Central Institute of Mental Health, Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Soeren Dalsgaard
- National Centre for Register-based Research, Aarhus University, Aarhus, Denmark
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
- Hospital of Telemark, Kragerø, Norway
| | - Anders D Børglum
- Department of Biomedicine and Human Genetics, Aarhus University, Aarhus, Denmark
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
- Center for Integrative Sequencing (iSEQ), Aarhus University, Aarhus, Denmark
- Aarhus Genome Center, Aarhus, Denmark
| | - Irwin Waldman
- Department of Psychology, Emory University, Atlanta, GA, USA
| | - Beth Wilmot
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | - Nikolas Molly
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, USA
| | - Claiton H D Bau
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- ADHD Outpatient Clinic, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Jennifer Crosbie
- Neurosciences and Mental Health Program, Research Institute, Hospital for Sick Children, Toronto, Canada
- University of Toronto, Toronto, Canada
| | - Russell Schachar
- Hospital for Sick Children, Toronto, Canada
- University of Toronto, Toronto, Canada
| | - Sandra K Loo
- Department of Psychiatry, University of California, Los Angeles, Los Angeles, CA, USA
| | - James J McGough
- Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Eugenio H Grevet
- ADHD Outpatient Clinic, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Department of Psychiatry, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Sarah E Medland
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Elise Robinson
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Lauren A Weiss
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
- Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
| | - Elena Bacchelli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Anthony Bailey
- Department of Psychiatry, University of British Columbia, Vancouver, Canada
- Institute of Mental Health, University of British Columbia, Vancouver, Canada
| | - Vanessa Bal
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
- Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
| | - Agatino Battaglia
- Stella Maris Clinical Research Institute for Child and Adolescent Neuropsychiatry, Pisa, Italy
| | - Catalina Betancur
- Sorbonne Université, INSERM, CNRS, Neuroscience Paris Seine, Institut de Biologie Paris Seine, Paris, France
| | - Patrick Bolton
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR Biomedical Research Centre in Mental Health Maudsley Hospital, London, UK
| | - Rita Cantor
- Department of Human Genetics, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | | | - Geraldine Dawson
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
| | - Silvia De Rubeis
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Frederico Duque
- Child Developmental Center, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Andrew Green
- Dept of Clinical Genetics, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - Sabine M Klauck
- Division of Molecular Genome Analysis and Division of Cancer Genome Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Marion Leboyer
- Inserm U955, Psychiatrie Translationnelle, Créteil, France
- Faculté de Médecine, Université Paris Est, Créteil, France
- Fondation FondaMental, Créteil, France
| | - Pat Levitt
- Children's Hospital Los Angeles, Los Angeles, CA, USA
- Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Elena Maestrini
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Shrikant Mane
- Yale Center for Genome Analysis, Yale University, New Haven, CT, USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
| | - Daniel Moreno- De-Luca
- Division of Child and Adolescent Psychiatry, Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA
| | - Jeremy Parr
- Institute of Neuroscience, Newcastle University, Newcastle, UK
- Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
- Northumberland, Tyne & Wear NHS Foundation Trust, Northumberland, UK
| | - Regina Regan
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
- Genomics Medicine Ireland, Dublin, Ireland
| | | | - Sven Sandin
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Jacob Vorstman
- Department of Psychiatry, Hospital for Sick Children and University of Toronto, Toronto, Canada
- Program in Genetics and Genome Biology, Hospital for Sick Children, Toronto, Canada
| | - Thomas Wassink
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Ellen Wijsman
- Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Edwin Cook
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA
| | - Susan Santangelo
- Center for Psychiatric Research, Maine Medical Center Research Institute, Portland, ME, USA
- Department of Psychiatry, Tufts University School of Medicine, Boston, MA, USA
| | - Richard Delorme
- Child and Adolescent Psychiatry Department, Robert Debre Hospital, APHP, Paris, France
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
| | - Bernadette Rogé
- Centre d'Etudes et de Recherches en Psychopathologie et Psychologie de la Santé (CERPPS), Université Toulouse Jean Jaurès, Toulouse, France
- CERESA, Toulouse, France
- Institut Universitaire de France, Paris, France
| | - Tiago Magalhaes
- Genomics Medicine Ireland, Dublin, Ireland
- Academic Centre on Rare Diseases University College Dublin (ACoRD/UCD), Dublin, Ireland
| | - Dan Arking
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Thomas G Schulze
- Institute of Psychiatric Phenomics and Genomics (IPPG), University Hospital, LMU Munich, Munich, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany
- Central Institute of Mental Health, Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
- Human Genetics Branch, National Institute of Mental Health, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD, USA
| | - Robert C Thompson
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Jana Strohmaier
- Central Institute of Mental Health, Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- SRH University Heidelberg, Academy for Psychotherapy, Heidelberg, Germany
| | - Keith Matthews
- Division of Neuroscience, School of Medicine, University of Dundee, Dundee, UK
- Advanced Interventions Service, NHS Tayside, Dundee, UK
| | - Ingrid Melle
- NORMENT, K.G. Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Derek Morris
- Cognitive Genetics and Cognitive Therapy Group, Neuroimaging, Cognition and Genomics (NICOG) Centre, School of Psychology and Discipline of Biochemistry, National University of Ireland Galway, Galway, Ireland
| | | | - Andrew McIntosh
- Division of Psychiatry, University of Edinburgh, Edinburgh, UK
| | - Sarah E Bergen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Martin Schalling
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Stéphane Jamain
- Inserm U955, Psychiatrie Translationnelle, Créteil, France
- Faculté de Médecine, Université Paris Est, Créteil, France
- Fondation FondaMental, Créteil, France
| | - Anna Maaser
- Institute of Human Genetics, School of Medicine, University of Bonn & University Hospital Bonn, Bonn, Germany
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Sascha B Fischer
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Céline S Reinbold
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Janice M Fullerton
- Neuroscience Research Australia, Sydney, Australia
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - José Guzman-Parra
- Unidad de Salud Mental, Hospital Regional Universitario de Malaga, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
| | - Fermin Mayoral
- Unidad de Salud Mental, Hospital Regional Universitario de Malaga, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
| | - Peter R Schofield
- Neuroscience Research Australia, Sydney, Australia
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Sven Cichon
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
| | - Thomas W Mühleisen
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | | | - Michael Bauer
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Philip B Mitchell
- School of Psychiatry, University of New South Wales, Sydney, Australia
- Black Dog Institute, Sydney, Australia
| | | | - John Rice
- Washington University, St. Louis, MO, USA
| | - James B Potash
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Peter P Zandi
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Nick Craddock
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - I Nicol Ferrier
- Institute of Neuroscience, Newcastle University, Newcastle, UK
| | - Martin Alda
- Department of Psychiatry, Dalhousie University, Halifax, Canada
- National Institute of Mental Health, Klecany, Czech Republic
| | - Guy A Rouleau
- Montreal Neurological Institute, McGill University, Montréal, Canada
- Department of Neurology and Neurosurgery, McGill University, Montréal, Canada
| | - Gustavo Turecki
- Department of Psychiatry, McGill University, Montréal, Canada
| | - Roel Ophoff
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience & Human Behavior, University of California at Los Angeles, Los Angeles, CA, USA
- UMC Utrecht, Utrecht, The Netherlands
| | - Carlos Pato
- SUNY Downstate Medical Center, Brooklyn, NY, USA
| | | | - Eli Stahl
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Markus Leber
- Hospital for Psychiatry and Psychotherapy, Cologne, Germany
| | - Piotr M Czerski
- Laboratory of Psychiatric Genetics, Department of Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Cristiana Cruceanu
- Douglas Mental Health University Institute, McGill University, Montreal, Canada
- Department of Translational Research in Psychiatry, Max-Planck Institute of Psychiatry, Munich, Germany
| | - Ian R Jones
- National Centre for Mental Health, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Danielle Posthuma
- Department Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, The Netherlands
- Department Clinical Genetics, VU University Medical Center, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Till F M Andlauer
- Max Planck Institute of Psychiatry, Munich, Germany
- Department of Neurology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Andreas J Forstner
- Institute of Human Genetics, School of Medicine, University of Bonn & University Hospital Bonn, Bonn, Germany
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
- Human Genomics Research Group, Department of Biomedicine, University of Basel, Basel, Switzerland
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Psychiatry (UPK), University of Basel, Basel, Switzerland
| | - Fabian Streit
- Central Institute of Mental Health, Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Bernhard T Baune
- Discipline of Psychiatry, University of Adelaide, Adelaide, Australia
| | - Tracy Air
- Discipline of Psychiatry, University of Adelaide, Adelaide, Australia
| | - Grant Sinnamon
- Bela Menso Brain and Behaviour Centre, James Cook University, Varsity Lakes, Australia
- Bond University, Faculty of Society and Design, Robina, Australia
| | - Naomi R Wray
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
- Queensland Brain Institute, University of Queensland, Brisbane, Australia
| | - Donald J MacIntyre
- Division of Psychiatry, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - David Porteous
- Centre for Genomic and Experimental Medicine, University of Edinburgh, Edinburgh, UK
| | - Georg Homuth
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Margarita Rivera
- Department of Biochemistry and Molecular Biology II, Institute of Neurosciences, Center for Biomedical Research, University of Granada, Granada, Spain
- MRC Social, Genetic and Developmental Psychiatry Centre, King's College London, London, UK
| | - Jakob Grove
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
- Center for Integrative Sequencing (iSEQ), Aarhus University, Aarhus, Denmark
- Department of Biomedicine and Human Genetics, Aarhus University, Aarhus, Denmark
- Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
| | - Christel M Middeldorp
- Child Health Research Centre, University of Queensland, Brisbane, Australia
- Child and Youth Mental Health Service, Children's Health Queensland Health and Hospital Service, Brisbane, Australia
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Ian Hickie
- Brain and Mind Centre, University of Sydney, Sydney, Australia
| | | | - Divya Mehta
- School of Psychology and Counselling, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Queensland, Australia
- University of Queensland, Brisbane, Australia
| | - Johannes H Smit
- Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, VU Medical Center, Amsterdam, the Netherlands
- Department of Research and Innovation, GGZ Ingeest, Specialized Mental Health Care, Amsterdam, the Netherlands
| | - Rick Jansen
- Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands
| | - Eco de Geus
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, VU Medical Center, Amsterdam, the Netherlands
| | - Erin Dunn
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Qingqin S Li
- Janssen Research & Development LLC, Titusville, NJ, USA
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
- German Centre for Cardiovascular Research (DZHK e.V.), Partner Site Greifswald, Greifswald, Germany
| | - Robert A Schoevers
- Research School of Behavioural and Cognitive Neurosciences, Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Aartjan Tf Beekman
- Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands
- Department of Psychiatry GGZ INGEEST, Amsterdam, the Netherlands
| | - James A Knowles
- Department of Cell Biology, SUNY Downstate Medical Center, Brooklyn, NY, USA
| | - Alexander Viktorin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Paul Arnold
- Mathison Centre for Mental Health Research & Education, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Departments of Psychiatry and Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Program in Genetics and Genome Biology, Hospital for Sick Children, Toronto, Canada
| | - Cathy L Barr
- Krembil Research Institute, University Health Network, Toronto, Canada
- Hospital for Sick Children, Toronto, Canada
- University of Toronto, Toronto, Canada
| | - Gabriel Bedoya-Berrio
- Grupo de Genética Molecular, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellín, Colombia
| | | | - Helena Brentani
- Department of Psychiatry, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Beatriz Camarena
- Depto. Farmacogenética, Instituto Nacional de Psiquiatria Ramon de la Fuente Muñiz, Mexico City, Mexico
| | - Carolina Cappi
- Department of Psychiatry, Sao Paulo Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Danielle Cath
- Department of Psychiatry, University of Groningen and University Medical Center, Groningen, the Netherlands
- Department of Specialized Trainings, GGZ Drenthe Mental Health Care Services, Assen, the Netherlands
| | | | | | | | - Damiaan Denys
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Eske M Derks
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Andrea Dietrich
- University of Groningen, Groningen, the Netherlands
- Department of Child and Adolescent Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | - Martijn Figee
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nelson Freimer
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience & Human Behavior, University of California at Los Angeles, Los Angeles, CA, USA
| | - Gloria Gerber
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Marco Grados
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | | | - Gregory L Hanna
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Andreas Hartmann
- Centre National Maladie 'Syndrome Rare Gilles de la Tourette', Groupe Hospitalier Pitié-Salpêtrière, Paris, France
- Assistance Publique-Hôpitaux de Paris, Départment de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
- Sorbonne Universités, UPMC Université Paris 06, UMR S 1127, CNRS UMR 7225, ICM, Paris, France
| | - Matthew E Hirschtritt
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
- Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
| | - Pieter J Hoekstra
- Department of Child and Adolescent Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Alden Huang
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, USA
- Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Chaim Huyser
- De Bascule, Amsterdam, The Netherlands
- Department of Child and Adolescent Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | | | | | - Samuel Kuperman
- Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | | | - Christine Lochner
- MRC Unit on Risk & Resilience in Mental Disorders, Department of Psychiatry, University of Cape Town, Cape Town, South Africa
| | - Gholson J Lyon
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Fabio Macciardi
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Marcos Madruga-Garrido
- Sección de Neuropediatría, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Irene A Malaty
- Department of Neurology, University of Florida, Gainesville, FL, USA
| | - Athanasios Maras
- Yulius Academy, Yulius Mental Health Organization, Barendrecht, The Netherlands
| | - Lauren McGrath
- Department of Psychology, University of Denver, Denver, CO, USA
| | - Eurípedes C Miguel
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Pablo Mir
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Gerald Nestadt
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Humberto Nicolini
- National Institute of Genomic Medicine (INMEGEN), Ciudad de México, Mexico
- Clinical Research, Grupo Médico Carracci, Mexico City, Mexico
| | - Michael S Okun
- Departments of Neurology and Neurosurgery, University of Florida, Gainesville, FL, USA
- Fixel Center for Neurological Diseases, University of Florida, Gainesville, FL, USA
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Andrew Pakstis
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
| | - Peristera Paschou
- Department of Biological Sciences, Purdue University, West Lafayette, Indiana, USA
| | - John Piacentini
- Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | | | - Kerstin Plessen
- Division of Adolescent and Child Psychiatry, Department of Psychiatry, Lausanne University Hospital, Lausanne, Switzerland
- Child and Adolescent Mental Health Centre, Mental Health Services Capital Region Copenhagen, University of Copenhagen, Copenhagen, Denmark
| | - Vasily Ramensky
- Moscow Institute of Physics and Technology, Dolgoprudny, Institusky 9, Moscow, Russia
| | - Eliana M Ramos
- Department of Psychiatry, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Victor Reus
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
- Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
| | - Margaret A Richter
- Frederick W. Thompson Anxiety Disorders Centre, Sunnybrook Health Sciences Centre, Toronto, Canada
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Mark A Riddle
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mary M Robertson
- Division of Neuropsychiatry, University College London, London, UK
| | - Veit Roessner
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technischen Universität Dresden, Dresden, Germany
| | - Maria Rosário
- Child and Adolescent Psychiatry Unit (UPIA), Department of Psychiatry, Federal University of São Paulo, Brazil
- Yale Child Study Center, Yale University School of Medicine, New Haven, CT, USA
| | - Jack F Samuels
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Paul Sandor
- Department of Psychiatry, University of Toronto, Toronto, Canada
- University Health Network, University of Toronto, Toronto, Canada
- Youthdale Treatment Centers, Toronto, Canada
| | - Dan J Stein
- Groote Schuur Hospital, Cape Town, South Africa
- MRC Unit on Risk & Resilience in Mental Disorders, Department of Psychiatry, University of Cape Town, Cape Town, South Africa
| | - Fotis Tsetsos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Sarah Weatherall
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | | | - Tomasz Wolanczyk
- Department of Child Psychiatry, Medical University of Warsaw, Warsaw, Poland
| | - Yulia Worbe
- Sorbonne Université, Faculty of Médecine, Paris, France
- Reference center for Gilles de la Tourette syndrome, Pitie-Salpetriere Hospital, Paris, France
- Department of Physiology, Saint Antoine Hospital, Paris, France
| | - Gwyneth Zai
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Fernando S Goes
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Nicole McLaughlin
- Butler Hospital, Providence, RI, USA
- Alpert Medical School of Brown University, Providence, RI, USA
| | - Paul S Nestadt
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Hans-Jorgen Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Christel Depienne
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
- INSERM, U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Paris, France
- IGBMC, CNRS UMR 7104/INSERM U964/Université de Strasbourg, Illkirch, France
| | | | | | - Ana Valencia-Duarte
- Escuela de Ciencias de la Salud, Universidad Pontificia Bolivariana, Medellín, Colombia
- Laboratorio de Genética Molecular, SIU, Universidad de Antioquia, Medellín, Colombia
| | - Elvira Bramon
- Division of Psychiatry, Molecular Psychiatry Laboratory,University College London, London, UK
| | - Nancy Buccola
- School of Nursing, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Wiepke Cahn
- Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Murray Cairns
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, Australia
- Priority Research Centre for Brain and Mental Health Research, Hunter Medical Research Institute, Newcastle, Australia
- Schizophrenia Research Institute, Sydney, Australia
| | - Siow A Chong
- Institute of Mental Health, Singapore, Singapore
| | - David Cohen
- Assistance Publique - Hopitaux de Paris, GH Pitié-Salpêtrière, Paris, France
- Sorbonne Université, CNRS UMR 7222 Institut des Systèmes Intelligents et Robotiques, Paris, France
| | - Benedicto Crespo-Facorro
- Departments of Medicine and Psychiatry, School of Medicine University of Cantabria-IDIVAL, University Hospital Marqués de Valdecilla, Santander, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - James Crowley
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michael Davidson
- Minerva Neurosciences Inc., Waltham, MA, USA
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lynn DeLisi
- VA Boston Healthcare System, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Timothy Dinan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry, University College Cork, Cork, Ireland
| | - Gary Donohoe
- Neuroimaging, Cognition and Genomics (NICOG) Centre, School of Psychology, National University of Ireland Galway, Galway, Ireland
| | - Elodie Drapeau
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jubao Duan
- Center for Psychiatric Genetics, NorthShore University HealthSystem Research Institute, Evanston, IL, USA
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | - Lieuwe Haan
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
- Arkin, Amsterdam, the Netherlands
| | - David Hougaard
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | | | - Andrey Khrunin
- Department of Molecular Bases of Human Genetics, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Janis Klovins
- Latvian Biomedical Research and Study Centre, Riga, Latvia
| | | | - Jimmy Lee Chee Keong
- Institute of Mental Health, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Svetlana Limborska
- Department of Human Genetics, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Carmel Loughland
- Hunter New England Local Health District, Newcastle, Australia
- University of Newcastle, Callaghan, Australia
| | - Jouko Lönnqvist
- National Institute for Health and Welfare, Helsinki, Finland
- Department of Psychiatry, University of Helsinki, Helsinki, Finland
| | - Brion Maher
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Manuel Mattheisen
- Department of Psychiatry, Psychosomatics and Psychotherapy, Center of Mental Health, University Hospital Wuerzburg, Wuerzburg, Germany
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden
| | - Colm McDonald
- Centre for Neuroimaging and Cognitive Genomics (NICOG), National University of Ireland, Galway, Galway, Ireland
- NCBES Galway Neuroscience Centre, National University of Ireland, Galway, Galway, Ireland
| | - Kieran C Murphy
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Igor Nenadic
- Philipps-Universität Marburg and Marburg University Hospital UKGM, Marburg, Germany
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Jim van Os
- Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
- Maastricht University Medical Centre, Maastricht, the Netherlands
- Department of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK
| | - Christos Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne & Melbourne Health, Victoria, Australia
- Centre for Neural Engineering, Department of Electrical and Electronic Engineering, University of Melbourne, Victoria, Australia
- Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia
| | - Michele Pato
- SUNY Downstate Medical Center, Brooklyn, NY, USA
| | - Tracey Petryshen
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Digby Quested
- Oxford Health NHS Foundation Trust, Oxford, UK
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Panos Roussos
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alan R Sanders
- Department of Psychiatry and Behavioral Sciences, NorthShore University HealthSystem Research Institute, Evanston, IL, USA
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | | | - Sibylle G Schwab
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
| | - Kang Sim
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- Institute of Mental Health, Singapore, Singapore
| | - Hon-Cheong So
- School of Biomedical Sciences, Chinese University of Hong Kong, Shatin, Hong Kong
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research of Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Chinese University of Hong Kong, Hong Kong
| | | | - Mythily Subramaniam
- Institute of Mental Health, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Draga Toncheva
- Department of Medical Genetics, Medical University, Sofia, Bulgaria
| | - John Waddington
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - James Walters
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
- Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, Cardiff, UK
| | - Mark Weiser
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Sheba Medical Center, Ramat Gan, Israel
| | - Wei Cheng
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Robert Cloninger
- Departments of Psychiatry and Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - David Curtis
- UCL Genetics Institute, University College London, London, UK
- Centre for Psychiatry, Barts and the London School of Medicine and Dentistry, London, UK
| | - Pablo V Gejman
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
- Department of Psychiatry and Behavioral Sciences, NorthShore University HealthSystem Research Institute, Evanston, IL, USA
| | - Frans Henskens
- School of Medicine & Public Health, University of Newcastle, Callaghan, Australia
- Priority Research Centre for Health Behaviour, University of Newcastle, Callaghan, Australia
- Hunter Medical Research Institute, Newcastle, Australia
| | - Morten Mattingsdal
- NORMENT, K.G. Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Research Unit, Sørlandet Hospital, Kristiansand, Norway
| | - Sang-Yun Oh
- Department of Statistics and Applied Probability, University of California, Santa Barbara, CA, USA
- Computational Research Division, Lawrence Berkeley National Laboratory, University of California at Berkeley, Berkeley, CA, USA
| | - Rodney Scott
- University of Newcastle, Callaghan, Australia
- Hunter Medical Research Institute, Newcastle, Australia
- NSW Health Pathology, Newcastle, Australia
| | - Bradley Webb
- Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
| | - Gerome Breen
- Institute of Psychiatry, Psychology & Neuroscience, Social Genetics & Developmental Psychiatry Center, MRC, Kings College London, London, UK
- NIHR Maudsley Biomedical Research Centre, South London & Maudsley NHS Trust & King's College London, London, UK
| | - Claire Churchhouse
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Cynthia M Bulik
- Departments of Psychiatry and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Mark Daly
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Martin Dichgans
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Stephen V Faraone
- Departments of Psychiatry and of Neuroscience and Physiology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Rita Guerreiro
- UK Dementia Research Institute, University College London, London, UK
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, UK
| | - Peter Holmans
- Cardiff University, Medical Research Council Center for Neuropsychiatric Genetics & Genomics, Institute of Psychology, Medicine & Clinical Neuroscience, Cardiff, UK
| | - Kenneth S Kendler
- Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
| | - Bobby Koeleman
- Division Biomedical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Carol A Mathews
- Department of Psychiatry and UF Genetics Institute, University of Florida, Gainesville, FL, USA
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Alkes Price
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Jeremiah Scharf
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Division of Cognitive and Behavioral Neurology, Brigham and Women's Hospital, Boston, MA, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Pamela Sklar
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Julie Williams
- Cardiff University, Medical Research Council Center for Neuropsychiatric Genetics & Genomics, Institute of Psychology, Medicine & Clinical Neuroscience, Cardiff, UK
- Dementia Research Institute, Cardiff University, Cardiff, UK
| | - Nicholas W Wood
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, UK
- UCL Genetics Institute, University College London, London, UK
| | - Chris Cotsapas
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA
| | - Aarno Palotie
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
| | - Jordan W Smoller
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Patrick Sullivan
- Departments of Psychiatry and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Genetics and Psychiatry, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Jonathan Rosand
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Aiden Corvin
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
- Neuropsychiatric Genetics Research Group, Department of Psychiatry, Trinity College Dublin, Dublin, Ireland
| | - Benjamin M Neale
- Analytic Translational Genetics Unit, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts, USA.
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | | | - Richard Anney
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
- Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, Cardiff, UK
| | - Josephine Elia
- Department of Pediatrics, Nemours A.I. duPont Hospital for Children, Wilmington, DE, USA
- Department of Psychiatry, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Maria Grigoroiu-Serbanescu
- Alexandru Obregia Clinical Psychiatric Hospital, Biometric Psychiatric Genetics Research Unit, Bucharest, Romania
| | - Howard J Edenberg
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Robin Murray
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
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Elzakkers IFFM, Danner UN, Grisso T, Hoek HW, van Elburg AA. Assessment of mental capacity to consent to treatment in anorexia nervosa: A comparison of clinical judgment and MacCAT-T and consequences for clinical practice. Int J Law Psychiatry 2018; 58:27-35. [PMID: 29853010 DOI: 10.1016/j.ijlp.2018.02.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 01/22/2018] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
Informed consent requires adequate mental capacity to consent to treatment. Mental capacity (MC) to consent to treatment refers to the ability to make medical decisions. MC is assessed in a general psychiatric interview, but this clinical assessment is known to overestimate mental capacity in patients and the inter rater reliability is low. The MacArthur Competence Assessment Tool for Treatment (MacCAT-T) has emerged as the gold standard to assess mental capacity to consent to treatment. The MacCAT-T is a semi-structured interview designed to aid clinicians in this assessment and has shown good inter rater reliability in patients with schizophrenia and other mental disorders, but has hardly been studied in patients with anorexia nervosa. Patients with anorexia nervosa (AN) regularly avoid treatment, even when severely ill and discussion includes assessing MC to consent to treatment. The aim of this study is to compare clinical judgment and the MacCAT-T in evaluating MC in patients with AN which in turn may influence use of the MacCAT-T in daily practice. In a sample of 70 consecutively referred severely ill patients with AN with a mean BMI of 15.5 kg/m2 and a mean duration of illness of 8.6 years, clinical assessment of MC by experienced psychiatrists and the outcome of the MacCAT-T interview were compared. Agreement (κ-value) was calculated. Agreement between clinical assessment and outcome of the MacCAT-T was questionable (κ 0.23). Unlike in other psychiatric populations, clinicians judged a high proportion of patients with AN as having diminished MC. The MacCAT-T can be useful in assessing MC in AN when used in addition to clinical judgment to aid clinicians in complex cases. Why clinicians judge a relatively high proportion of patients with AN as having diminished MC, in contrast to lower proportions in other psychiatric disorders, is an area in need of further research.
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Affiliation(s)
- Isis F F M Elzakkers
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands; Utrecht University, Department of Psychology, The Netherlands
| | - Thomas Grisso
- Department of Psychiatry, University of Massachusetts Medical School, Worcester, MA, USA
| | - Hans W Hoek
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands; Parnassia Psychiatric Institute, The Hague, The Netherlands; Department of Psychiatry, University Medical Center Groningen, The Netherlands; Department of Epidemiology, Mailman School of Public Health, Columbia University New York, USA
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands; Utrecht University, Department of Psychology, The Netherlands.
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21
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Smithuis L, Kool-Goudzwaard N, de Man-van Ginkel JM, van Os-Medendorp H, Berends T, Dingemans A, Claes L, van Elburg AA, van Meijel B. Self-injurious behaviour in patients with anorexia nervosa: a quantitative study. J Eat Disord 2018; 6:26. [PMID: 30305903 PMCID: PMC6169009 DOI: 10.1186/s40337-018-0214-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 08/29/2018] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Many patients with an eating disorder report difficulties in regulating their emotions and show a high prevalence of self-injurious behaviour. Several studies have stated that both eating disorder and self-injurious behaviour help emotion regulation, and are thus used as coping mechanisms for these patients. We aimed to determine the prevalence of self-injurious behaviour, its characteristics and its emotion-regulation function in patients with anorexia nervosa or an eating disorder not otherwise specified (n = 136). METHODS A cross-sectional design using a self-report questionnaire. Mann-Whitney U-tests were conducted to compare the background and clinical variables between patients with self-injurious behaviour and patients without this type of behaviour. Changes in emotional state before and after self-injurious behaviour were tested by Wilcoxon signed rank tests. RESULTS Our results showed a 41% prevalence of self-injurious behaviour in the previous month. Patients who performed self-injurious behaviour had a statistically significant longer treatment history for their eating disorder than those who did not. Whereas 55% of self-injuring patients had a secondary psychiatric diagnosis, only 21% of participants without self-injurious behaviour did. Regarding the impact of self-injurious behaviour, our results showed a significant increase in "feeling relieved" and a significant decrease in "feeling angry at myself", "feeling anxious" and "feeling angry at others". This indicates that self-injurious behaviour can be regarded as an emotion-regulation behaviour. Participants were usually aware of the causes of their self-injurious behaviour acts. CONCLUSIONS Professionals should systematically assess the occurrence of self-injurious behaviour in eating disorder patients, pay special attention to patients with more severe and comorbid psychopathology, and those with a long treatment history. This assessment should be followed by a functional analysis of the self-injurious behaviour and by effective therapeutic interventions alongside the eating disorder treatment.
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Affiliation(s)
- Linda Smithuis
- Parnassia Psychiatric Institute, Rotterdam, The Netherlands.,2Inholland University of Applied Sciences, Amsterdam, The Netherlands
| | - Nienke Kool-Goudzwaard
- 2Inholland University of Applied Sciences, Amsterdam, The Netherlands.,Intensive Treatment Centre, Fivoor, The Hague, The Netherlands
| | - Janneke M de Man-van Ginkel
- Julius Center for Health Sciences and Primary Care, Department of Nursing Science, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Harmieke van Os-Medendorp
- Julius Center for Health Sciences and Primary Care, Department of Nursing Science, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.,5Department of Dermatology, University Medical Center Utrecht, Utrecht, the Netherlands.,6Department of Allergology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Tamara Berends
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands
| | - Alexandra Dingemans
- Rivierduinen Eating disorders Ursula, Rivierduinen, Leiden, The Netherlands.,9Institute of Psychology, Leiden University, Leiden, the Netherlands
| | - Laurence Claes
- 10Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.,11Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Annemarie A van Elburg
- Clinical Psychology, Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,13Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands
| | - Berno van Meijel
- 14Mental Health Nursing, Inholland University of Applied Sciences, Amsterdam, The Netherlands.,15Department of Psychiatry, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, The Netherlands.,Parnassia Psychiatric Institute, The Hague, The Netherlands.,GGZ-VS, Academy for Masters in Advanced Nursing Practice, Utrecht, The Netherlands
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22
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Dingemans AE, Goorden M, Lötters FJB, Bouwmans C, Danner UN, van Elburg AA, van Furth EF, Hakkaart-van Roijen L. Development and Validation of a Decision Tool for Early Identification of Adult Patients with Severe and Complex Eating Disorder Psychopathology in Need of Highly Specialized Care. Eur Eat Disord Rev 2017; 25:366-372. [PMID: 28660699 DOI: 10.1002/erv.2528] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/20/2017] [Accepted: 05/15/2017] [Indexed: 11/09/2022]
Abstract
Patients with complex and severe eating disorders often receive a number of ineffective or/and insufficient treatments. Direct referral of these patients to highly specialized tertiary treatment facilities in an earlier stage of the disorder is likely to be more (cost)-effective. The aim of the study was to develop a decision tool that aids clinicians in early identification of these patients. After identification of criteria that were indicative of severity and complexity of eating disorder psychopathology by means of a systematic review of literature and consultation of a focus group, a Delphi method was applied to obtain consensus from experts on the list of relevant criteria. Finally, the decision tool was validated in clinical practice, and cut-off criteria were established. The tool demonstrated good feasibility and validity to identify patients for highly specialized tertiary care. The final decision tool consisted of five criteria that can easily be implemented in clinical practice. Copyright © 2017 John Wiley & Sons, Ltd and Eating Disorders Association.
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Affiliation(s)
| | - Maartje Goorden
- Institute of Health Policy and Management (iBMG) and institute of Medical Technology Assessment (iMTA), Erasmus University Rotterdam, The Netherlands
| | - Freek J B Lötters
- Institute of Health Policy and Management (iBMG) and institute of Medical Technology Assessment (iMTA), Erasmus University Rotterdam, The Netherlands
| | - Clazien Bouwmans
- Institute of Health Policy and Management (iBMG) and institute of Medical Technology Assessment (iMTA), Erasmus University Rotterdam, The Netherlands
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Department of Clinical and Health Psychology, Utrecht University, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Department of Clinical and Health Psychology, Utrecht University, Utrecht, The Netherlands
| | - Eric F van Furth
- Rivierduinen Eating Disorders Ursula, Leiden, The Netherlands.,Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands
| | - Leona Hakkaart-van Roijen
- Institute of Health Policy and Management (iBMG) and institute of Medical Technology Assessment (iMTA), Erasmus University Rotterdam, The Netherlands
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23
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Elzakkers IFFM, Danner UN, Sternheim LC, McNeish D, Hoek HW, van Elburg AA. Mental capacity to consent to treatment and the association with outcome: a longitudinal study in patients with anorexia nervosa. BJPsych Open 2017; 3:147-153. [PMID: 28584660 PMCID: PMC5445260 DOI: 10.1192/bjpo.bp.116.003905] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 02/15/2017] [Accepted: 05/03/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Relevance of diminished mental capacity in anorexia nervosa (AN) to course of disorder is unknown. AIMS To examine prognostic relevance of diminished mental capacity in AN. METHOD A longitudinal study was conducted in 70 adult female patients with severe AN. At baseline, mental capacity was assessed by psychiatrists, and clinical and neuropsychological data (decision-making) were collected. After 1 and 2 years, clinical and neuropsychological assessments were repeated, and remission and admission rates were calculated. RESULTS People with AN with diminished mental capacity had a less favourable outcome with regard to remission and were admitted more frequently. Their appreciation of illness remained hampered. Decision-making did not improve, in contrast to people with full mental capacity. CONCLUSIONS People with AN with diminished mental capacity seem to do less well in treatment and display decision-making deficiencies that do not ameliorate with weight improvement. DECLARATION OF INTEREST None. COPYRIGHT AND USAGE © The Royal College of Psychiatrists 2017. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) license.
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Affiliation(s)
- Isis F F M Elzakkers
- , MD, MSc, Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Unna N Danner
- , PhD, Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Department of Psychology, Utrecht University, Utrecht, The Netherlands
| | - Lot C Sternheim
- , PhD, Department of Psychology, Utrecht University, Utrecht, The Netherlands
| | - Daniel McNeish
- , PhD, Department of Methodology and Statistics, Utrecht University, Utrecht, The Netherlands
| | - Hans W Hoek
- , MD, PhD, Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Parnassia Psychiatric Institute, The Hague, The Netherlands; Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands; Department of Epidemiology, Mailman School of Public Health, Columbia University New York, USA
| | - Annemarie A van Elburg
- , MD, PhD, Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Department of Psychology, Utrecht University, Utrecht, The Netherlands
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24
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Schilder CMT, van Elburg AA, Snellen WM, Sternheim LC, Hoek HW, Danner UN. Intellectual functioning of adolescent and adult patients with eating disorders. Int J Eat Disord 2017; 50:481-489. [PMID: 27528419 DOI: 10.1002/eat.22594] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 07/03/2016] [Accepted: 07/03/2016] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Intelligence is a known vulnerability marker in various psychiatric disorders. In eating disorders (ED) intelligence has not been studied thoroughly. Small-scale studies indicate that intelligence levels might be above general population norms, but larger scale studies are lacking. The aim of this study was to determine intellectual functioning in ED patients and associations with severity of the disorder. METHODS Wechsler's Full scale IQ (FSIQ), Verbal IQ (VIQ) and Performance IQ (PIQ) of 703 adolescent and adult ED patients were compared with population norms. Exploratory analyzes were performed on associations between IQ and both somatic severity (BMI and duration of the disorder) and psychological/behavioral severity (Eating Disorder Inventory [EDI-II] ratings) of the ED. RESULTS Mean IQ's were significantly higher than population means and effect-sizes were small-to-medium (d = .28, .16 and .23 for VIQ, PIQ, and FSIQ). No linear associations between IQ and BMI were found, but the most severely underweight adult anorexia nervosa (AN) patients (BMI ≤ 15) had higher VIQ (107.7) than the other adult AN patients (VIQ 102.1). In adult AN patients PIQ was associated with psychological/behavioral severity of the ED. DISCUSSION Our findings suggest that, in contrast with other severe mental disorders where low intelligence is a risk factor, higher than average intelligence might increase the vulnerability to develop an ED. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2017; 50:481-489).
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Affiliation(s)
- Christina M T Schilder
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Altrecht Center for Psychodiagnostics, Zeist, The Netherlands.,Utrecht Research Group Eating Disorders (URGE), Utrecht University, Utrecht, the Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Utrecht Research Group Eating Disorders (URGE), Utrecht University, Utrecht, the Netherlands.,Department of Clinical and Health Psychology, Utrecht University, the Netherlands
| | - Wim M Snellen
- Altrecht Center for Psychodiagnostics, Zeist, The Netherlands
| | - Lot C Sternheim
- Utrecht Research Group Eating Disorders (URGE), Utrecht University, Utrecht, the Netherlands.,Department of Clinical and Health Psychology, Utrecht University, the Netherlands
| | - Hans W Hoek
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Utrecht Research Group Eating Disorders (URGE), Utrecht University, Utrecht, the Netherlands.,Parnassia Psychiatric Institute, the Hague, the Netherlands.,Department of Psychiatry, Groningen University, the Netherlands.,Department of Epidemiology, Columbia University, New York
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Zeist, The Netherlands.,Utrecht Research Group Eating Disorders (URGE), Utrecht University, Utrecht, the Netherlands
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25
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Sultson H, van Meer F, Sanders N, van Elburg AA, Danner UN, Hoek HW, Adan RAH, Smeets PAM. Associations between neural correlates of visual stimulus processing and set-shifting in ill and recovered women with anorexia nervosa. Psychiatry Res Neuroimaging 2016; 255:35-42. [PMID: 27518327 DOI: 10.1016/j.pscychresns.2016.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 04/27/2016] [Accepted: 07/07/2016] [Indexed: 11/18/2022]
Abstract
Women ill with anorexia nervosa (AN) have been shown to exhibit altered cognitive functioning, particularly poor set-shifting (SS). In this study, we investigated whether brain activation in frontal and parietal regions during visual stimulus processing correlates with SS ability. Women currently ill with AN (AN; N=14), recovered women (REC; N=14) and healthy controls (HC; N=15), viewed alternating blocks of food and non-food pictures during functional magnetic resonance imaging (fMRI). The Berg's Card Sorting Task was completed outside the scanner to measure SS. A priori regions of interest (ROIs) were defined in frontal and parietal regions. The activation during visual stimulus processing in several ROIs correlated positively with poor SS ability in REC, particularly in the left dorsal anterior cingulate cortex (dACC). The correlations with poor SS ability were opposite in AN patients, particularly in the right dACC. These findings underscore that addressing heightened levels of cognitive control associated with higher frontal activation could reduce cognitive inflexibility in recovered women. In AN, greater activation in frontal and parietal regions might be necessary to perform at normal levels during various tasks. Thus, weight restoration could be necessary for AN patients prior to addressing cognitive inflexibility.
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Affiliation(s)
- Hedvig Sultson
- Image Sciences Institute, University Medical Center Utrecht, Heidelberglaan 100, Q02.4.45, 3584 CX Utrecht, The Netherlands
| | - Floor van Meer
- Image Sciences Institute, University Medical Center Utrecht, Heidelberglaan 100, Q02.4.45, 3584 CX Utrecht, The Netherlands
| | - Nicole Sanders
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands
| | - Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Hans W Hoek
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Parnassia Psychiatric Institute, The Hague, The Netherlands; Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands
| | - Roger A H Adan
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Paul A M Smeets
- Image Sciences Institute, University Medical Center Utrecht, Heidelberglaan 100, Q02.4.45, 3584 CX Utrecht, The Netherlands; Division of Human Nutrition, Wageningen University & Research Center, Wageningen, The Netherlands.
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26
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Berends T, van Meijel B, Nugteren W, Deen M, Danner UN, Hoek HW, van Elburg AA. Rate, timing and predictors of relapse in patients with anorexia nervosa following a relapse prevention program: a cohort study. BMC Psychiatry 2016; 16:316. [PMID: 27608679 PMCID: PMC5017136 DOI: 10.1186/s12888-016-1019-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 08/29/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Relapse is common among recovered anorexia nervosa (AN) patients. Studies on relapse prevention with an average follow-up period of 18 months found relapse rates between 35 and 41 %. In leading guidelines there is general consensus that relapse prevention in patients treated for AN is a matter of essence. However, lack of methodological support hinders the practical implementation of relapse prevention strategies in clinical practice. For this reason we developed the Guideline Relapse Prevention Anorexia Nervosa. In this study we examine the rate, timing and predictors of relapse when using this guideline. METHOD Cohort study with 83 AN patients who were enrolled in a relapse prevention program for anorexia nervosa with 18 months follow-up. Data were analyzed using Kaplan-Meijer survival analyses and Cox regression. RESULTS Eleven percent of the participants experienced a full relapse, 19 % a partial relapse, 70 % did not relapse. Survival analyses indicated that in the first four months of the program no full relapses occurred. The highest risk of full relapse was between months 4 and 16. None of the variables remained a significant predictor of relapse in the multivariate Cox regression analysis. CONCLUSION The guideline offers structured procedures for relapse prevention. In this study the relapse rates were relatively low compared to relapse rates in previous studies. We recommend that all patients with AN set up a personalized relapse prevention plan at the end of their treatment and be monitored at least 18 months after discharge. It may significantly contribute to the reduction of relapse rates.
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Affiliation(s)
- Tamara Berends
- Altrecht Eating Disorders Rintveld, Wenshoek 4, 3705 WJ, Zeist, The Netherlands.
| | - Berno van Meijel
- Department of Health, Sports & Welfare, Cluster Nursing, Inholland University of Applied Sciences, Research Group Mental Health Nursing, Amsterdam, The Netherlands ,Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands ,Parnassia Psychiatric Institute, Parnassia Academy, The Hague, The Netherlands
| | - Willem Nugteren
- Altrecht Eating Disorders Rintveld, Wenshoek 4, 3705 WJ Zeist, The Netherlands ,Parnassia Psychiatric Institute, Clinical Centre for Acute Psychiatry, the Hague, The Netherlands
| | - Mathijs Deen
- Parnassia Psychiatric Institute, Parnassia Academy, The Hague, The Netherlands ,Institute of Psychology, Methodology and Statistics Unit, Leiden University, Leiden, The Netherlands
| | - Unna N. Danner
- Altrecht Eating Disorders Rintveld, Wenshoek 4, 3705 WJ Zeist, The Netherlands ,Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
| | - Hans W. Hoek
- Parnassia Psychiatric Institute, Parnassia Academy, The Hague, The Netherlands ,Utrecht Research Group Eating Disorders, Utrecht, The Netherlands ,Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands ,Department of Epidemiology, Columbia University, Mailman School of Public Health, New York, USA
| | - Annemarie A. van Elburg
- Altrecht Eating Disorders Rintveld, Wenshoek 4, 3705 WJ Zeist, The Netherlands ,Utrecht Research Group Eating Disorders, Utrecht, The Netherlands ,Department of Social Sciences, Utrecht University, Utrecht, The Netherlands
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Danner UN, Sternheim L, Bijsterbosch JM, Dingemans AE, Evers C, van Elburg AA. Influence of negative affect on decision making in women with restrictive and binge-purge type anorexia nervosa. Psychiatry Res 2016; 239:39-46. [PMID: 27137960 DOI: 10.1016/j.psychres.2016.02.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 02/16/2016] [Accepted: 02/22/2016] [Indexed: 01/26/2023]
Abstract
The present study aims to examine the influence of negative affect on decision making in women with anorexia nervosa (AN) compared to healthy control women and, secondly, to assess differences between the restrictive (ANR) and binge-purge (ANBP) subtypes. One hundred four women (32 with ANR, 32 with ANBP, and 40 healthy controls) participated. All women were asked to watch either a negative or a control film fragment, both followed by the Bechara Gambling Task (BGT). Before and after the fragments negative affect was measured. Additionally, relevant characteristics (e.g., overall depressive symptoms) were assessed. Differences in negative affect did not influence decision making performance. Independent of affective state, decision making was found to be impaired in women with ANBP (no learning effect on the BGT), but not in women with ANR. These findings highlight the importance of considering different AN subtypes when examining decision making processes. However, the role of negative affect on decision making remains uncertain. Since other affect related factors such as affect dysregulation may also play a role, future studies on decision making in AN should take the role of affect into account.
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Affiliation(s)
- Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands; Utrecht Research Group Eating disorders, The Netherlands
| | - Lot Sternheim
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands; Utrecht Research Group Eating disorders, The Netherlands; Department of Clinical and Health Psychology, Utrecht University, The Netherlands
| | - Jojanneke M Bijsterbosch
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands; Utrecht Research Group Eating disorders, The Netherlands
| | | | - Catharine Evers
- Department of Clinical and Health Psychology, Utrecht University, The Netherlands
| | - Annemarie A van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands; Utrecht Research Group Eating disorders, The Netherlands; Department of Clinical and Health Psychology, Utrecht University, The Netherlands
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Elzakkers IFFM, Danner UN, Hoek HW, van Elburg AA. Mental capacity to consent to treatment in anorexia nervosa: explorative study. BJPsych Open 2016; 2:147-153. [PMID: 27703767 PMCID: PMC4998943 DOI: 10.1192/bjpo.bp.115.002485] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/03/2016] [Accepted: 02/11/2016] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Mental capacity to consent to treatment in anorexia nervosa is a neglected area in clinical decision-making. AIMS To examine clinical and neuropsychological parameters associated with diminished mental capacity in anorexia nervosa. METHOD An explorative study was conducted in 70 adult female patients with severe anorexia nervosa. Mental capacity to consent to treatment was assessed by experienced psychiatrists. Further measurements included the MacCAT-T (to assess mental capacity status), a range of clinical measures (body mass index (BMI) and comorbidity) and neuropsychological tests assessing decision-making, central coherence and set-shifting capacity. RESULTS Diminished mental capacity occurs in a third of patients with severe anorexia nervosa and is associated with a low BMI, less appreciation of illness and treatment, previous treatment for anorexia nervosa, low social functioning and poor set shifting. CONCLUSIONS Assessment of diminished mental capacity in anorexia nervosa requires careful evaluation of not only BMI, but also the degree of appreciation of illness and treatment, history and the tendency to have a rigid thinking style. DECLARATION OF INTEREST None. COPYRIGHT AND USAGE © The Royal College of Psychiatrists 2016. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) licence.
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Affiliation(s)
| | - Unna N Danner
- , PhD, Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Hans W Hoek
- , MD, PhD, Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Parnassia Bavo Psychiatric Institute, The Hague, The Netherlands; Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, USA
| | - Annemarie A van Elburg
- , MD, PhD, Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands; Department of Social Sciences, Utrecht University, Utrecht, The Netherlands
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Beukers L, Berends T, de Man-van Ginkel JM, van Elburg AA, van Meijel B. Restoring normal eating behaviour in adolescents with anorexia nervosa: A video analysis of nursing interventions. Int J Ment Health Nurs 2015. [PMID: 26223764 DOI: 10.1111/inm.12150] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An important part of inpatient treatment for adolescents with anorexia nervosa is to restore normal eating behaviour. Health-care professionals play a significant role in this process, but little is known about their interventions during patients' meals. The purpose of the present study was to describe nursing interventions aimed at restoring normal eating behaviour in patients with anorexia nervosa. The main research question was: 'Which interventions aimed at restoring normal eating behaviour do health-care professionals in a specialist eating disorder centre use during meal times for adolescents diagnosed with anorexia nervosa? The present study was a qualitative, descriptive study that used video recordings made during mealtimes. Thematic data analysis was applied. Four categories of interventions emerged from the data: (i) monitoring and instructing; (ii) encouraging and motivating; (iii) supporting and understanding; and (iv) educating. The data revealed a directive attitude aimed at promoting behavioural change, but always in combination with empathy and understanding. In the first stage of clinical treatment, health-care professionals focus primarily on changing patients' eating behaviour. However, they also address the psychosocial needs that become visible in patients as they struggle to restore normal eating behaviour. The findings of the present study can be used to assist health-care professionals, and improve multidisciplinary guidelines and health-care professionals' training programmes.
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Affiliation(s)
- Laura Beukers
- Triversum Centre for Child and Adolescent Psychiatry, Alkmaar.,Mental Health Nursing Research Group, Inholland University of Applied Sciences, Amsterdam
| | - Tamara Berends
- Mental Health Nursing Research Group, Inholland University of Applied Sciences, Amsterdam.,Rintveld Centre for Eating Disorders, Altrecht Institute for Mental Health Care, Zeist
| | - Janneke M de Man-van Ginkel
- Department of Nursing Science, Programme in Clinical Health Sciences, University Medical Center, Utrecht.,Department of Rehabilitation, Nursing Science and Sport, University Medical Center, Utrecht
| | - Annemarie A van Elburg
- Rintveld Centre for Eating Disorders, Altrecht Institute for Mental Health Care, Zeist.,Department of Social Sciences, University Medical Center, Utrecht
| | - Berno van Meijel
- Mental Health Nursing Research Group, Inholland University of Applied Sciences, Amsterdam.,Parnassia Psychiatric Institute, The Hague, the Netherlands
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Brandys MK, de Kovel CGF, Kas MJ, van Elburg AA, Adan RAH. Overview of genetic research in anorexia nervosa: The past, the present and the future. Int J Eat Disord 2015; 48:814-25. [PMID: 26171770 DOI: 10.1002/eat.22400] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/05/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND Even though the evidence supporting the presence of a heritable component in the aetiology of anorexia nervosa (AN) is strong, the underlying genetic mechanisms remain poorly understood. The recent publication of a genome-wide association study (GWAS) of AN (Boraska, Mol Psychiatry, 2014) was an important step in genetic research in AN. OBJECTIVE To briefly sum up strengths and weaknesses of candidate-gene and genome-wide approaches, to discuss the genome-wide association studies of AN and to make predictions about the genetic architecture of AN by comparing it to that of schizophrenia (since the diseases share some similarities and genetic research in schizophrenia is more advanced). METHOD Descriptive literature review. RESULTS Despite remarkable efforts, the gene-association studies in AN did not advance our knowledge as much as had been hoped, although some results still await replication. DISCUSSION Continuous effort of participants, clinicians and researchers remains necessary to ensure that genetic research in AN follows a similarly successful path as in schizophrenia. Identification of genetic susceptibility loci provides a basis for follow-up studies.
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Affiliation(s)
- Marek K Brandys
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands.,Utrecht Research Group for Eating Disorders, Utrecht, The Netherlands
| | - Carolien G F de Kovel
- Department of Medical Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Martien J Kas
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands.,Utrecht Research Group for Eating Disorders, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Utrecht Research Group for Eating Disorders, Utrecht, The Netherlands.,Department Clinical and Health Psychology, Fac. of Social Sciences, University of Utrecht, Utrecht, The Netherlands.,Rintveld, Center for Eating Disorders, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Roger A H Adan
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands.,Utrecht Research Group for Eating Disorders, Utrecht, The Netherlands.,Rintveld, Center for Eating Disorders, Altrecht Mental Health Institute, Zeist, The Netherlands
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Sanders N, Smeets PAM, van Elburg AA, Danner UN, van Meer F, Hoek HW, Adan RAH. Altered food-cue processing in chronically ill and recovered women with anorexia nervosa. Front Behav Neurosci 2015; 9:46. [PMID: 25774128 PMCID: PMC4342866 DOI: 10.3389/fnbeh.2015.00046] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 02/09/2015] [Indexed: 01/16/2023] Open
Abstract
Anorexia nervosa (AN) is a severe mental disorder characterized by food restriction and weight loss. This study aimed to test the model posed by Brooks et al. (2012a,b) that women suffering from chronic AN show decreased food-cue processing activity in brain regions associated with energy balance and food reward (bottom-up; BU) and increased activity in brain regions associated with cognitive control (top-down; TD) when compared with long-term recovered AN (REC) and healthy controls (HC). Three groups of women, 15 AN (mean illness duration 7.8 ± 4.1 years), 14 REC (mean duration of recovery 4.7 ± 2.7 years) and 15 HC viewed alternating blocks of food and non-food images preceded by a short instruction during functional magnetic resonance imaging (fMRI), after fasting overnight. Functional region of interests (fROIs) were defined in BU (e.g., striatum, hippocampus, amygdala, hypothalamus, and cerebellum), TD (e.g., medial and lateral prefrontal cortex, and anterior cingulate), the insula, and visual processing areas (VPA). Food-cue processing activation was extracted from all fROIs and compared between the groups. In addition, functional connectivity between the fROIs was examined by modular partitioning of the correlation matrix of all fROIs. We could not confirm the hypothesis that BU areas are activated to a lesser extent in AN upon visual processing of food images. Among the BU areas the caudate showed higher activation in both patient groups compared to HC. In accordance with Brooks et al.'s model, we did find evidence for increased TD control in AN and REC. The functional connectivity analysis yielded two clusters in HC and REC, but three clusters in AN. In HC, fROIs across BU, TD, and VPA areas clustered; in AN, one cluster span across BU, TD, and insula; one across BU, TD, and VPA areas; and one was confined to the VPA network. In REC, BU, TD, and VPA or VPA and insula clustered. In conclusion, despite weight recovery, neural processing of food cues is also altered in recovered AN patients.
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Affiliation(s)
- Nicole Sanders
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Utrecht, Netherlands
- Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands
| | - Paul A. M. Smeets
- Image Sciences Institute, University Medical Center Utrecht, Utrecht, Netherlands
- Division of Human Nutrition, Wageningen University and Research Center, Wageningen, Netherlands
| | - Annemarie A. van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Utrecht, Netherlands
- Faculty of Social Sciences, University of Utrecht, Utrecht, Netherlands
| | - Unna N. Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Utrecht, Netherlands
| | - Floor van Meer
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Utrecht, Netherlands
- Image Sciences Institute, University Medical Center Utrecht, Utrecht, Netherlands
| | - Hans W. Hoek
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Utrecht, Netherlands
- Parnassia Psychiatric Institute, The Hague, Netherlands
- Department of Psychiatry, University Medical Center Groningen, Groningen, Netherlands
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Roger A. H. Adan
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Utrecht, Netherlands
- Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands
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Abstract
OBJECTIVE Compulsory in-patient refeeding of patients with severe anorexia nervosa (AN) has caused considerable controversy. The effects of such treatment on longer-term outcome are not well known. The objective of this article is to review the evidence on the outcome of compulsory treatment for AN. METHOD Three large databases were searched for studies regarding compulsory treatment in AN. RESULTS Detained patients have more severe symptoms and comorbidity and a longer duration of inpatient stay. In the short term compulsory refeeding in AN appears to be beneficial, but the longer term effects remain uncertain. Clinicians report no worsening of the therapeutic relationship after compulsory treatment. DISCUSSION In severe cases of AN where the patient refuses life-saving treatment compulsory treatment needs to be considered. Future research should focus on the longer term effects of compulsory treatment and also on questions related to mental capacity in AN.
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Affiliation(s)
- Isis F F M Elzakkers
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands
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Dingemans AE, Danner UN, Donker JM, Aardoom JJ, van Meer F, Tobias K, van Elburg AA, van Furth EF. The effectiveness of cognitive remediation therapy in patients with a severe or enduring eating disorder: a randomized controlled trial. Psychother Psychosom 2014; 83:29-36. [PMID: 24281361 DOI: 10.1159/000355240] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 08/24/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Individuals with eating disorders show deficits in neuropsychological functioning which might preexist and underlie the etiology of the eating disorders and influence relapse. Deficits in cognitive flexibility, i.e., set-shifting and central coherence, might perpetuate the symptoms. Cognitive remediation therapy (CRT) was developed to improve cognitive flexibility, thereby increasing the likelihood of improved outcome. The focus of CRT is on how patients think, rather than on what patients think. The present study investigated the effectiveness of CRT for patients with a severe or enduring eating disorder by means of a randomized controlled trial comparing intensive treatment as usual (TAU) to CRT plus TAU. METHODS Eighty-two patients were randomly assigned to CRT plus TAU (n = 41) or TAU alone (n = 41). Outcome measures were set-shifting, central coherence, eating disorder and general psychopathology, motivation, quality of life and self-esteem. Assessments were performed at baseline (n = 82) and after 6 weeks (T1; n = 75) and 6 months (T2; n = 67). Data were analyzed by means of linear mixed model analyses. RESULTS Patients who received CRT in addition to TAU improved significantly more with regard to eating disorder-related quality of life at the end of treatment (T1) and eating disorder psychopathology at follow-up (T2), compared to those who received TAU only. Moreover, moderator analyses revealed that patients with poor baseline set-shifting abilities benefited more from CRT than patients with no deficits in set-shifting abilities at baseline; the quality of life of the former group was higher than that of the latter at follow-up. CONCLUSIONS CRT seems to be promising in enhancing the effectiveness of concurrent treatment.
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Kostrzewa E, van Elburg AA, Sanders N, Sternheim L, Adan RAH, Kas MJH. Longitudinal changes in the physical activity of adolescents with anorexia nervosa and their influence on body composition and leptin serum levels after recovery. PLoS One 2013; 8:e78251. [PMID: 24205172 PMCID: PMC3804495 DOI: 10.1371/journal.pone.0078251] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 09/10/2013] [Indexed: 11/24/2022] Open
Abstract
Objective Patients with anorexia nervosa (AN) are often observed to have high levels of physical activity, which do not necessarily diminish after a successful therapy. Previous studies have shown that body fat tissue recovery in these patients is associated with a disproportional restoration of the adipocyte hormone, leptin. Therefore, we wondered whether the individual variation in physical activity in AN patients prior to treatment may be related to body fat percentage and plasma leptin level outcome. Method Body fat percentage, leptin serum, and physical activity levels (accelerometer) were measured in adolescents with an (n=37, age 13 to 17.5 years) at initial assessment, at the end of study participation (median 12 months), and at one-year follow-up. Results Accelerometer data were used to split the patients in two groups: those with low (n=26) and those with high levels of physical activity (HLPA, n=11). These groups did not differ in terms of age, IQ, presence of menses, BMI and season of admission. The HLPA group was characterized by a longer total duration of illness. Physical activity levels during therapy decreased for the group with initially HLPA and increased for the group with low levels of physical activity (to comparable levels). Physical activity remained stable after one year. The increase in body fat percentage and leptin levels were dependent on the recovery status; however, recovered patients with initially HLPA had significantly higher fat mass during the follow-up. Discussion HLPA, an important modulator of AN progression in adolescents, can be successfully diminished by therapeutic intervention. Among recovered patients, those with initially HLPA had higher fat mass levels than those with low levels of physical activity. This finding suggests that HLPA are an important modulator of the body composition recovery mechanism.
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Affiliation(s)
- Elzbieta Kostrzewa
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Annemarie A. van Elburg
- Rintveld Centre for Eating Disorders, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Nicole Sanders
- Rintveld Centre for Eating Disorders, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Lot Sternheim
- Rintveld Centre for Eating Disorders, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Roger A. H. Adan
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Martien J. H. Kas
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
- * E-mail:
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Brandys MK, Kas MJH, van Elburg AA, Ophoff R, Slof-Op't Landt MCT, Middeldorp CM, Boomsma DI, van Furth EF, Slagboom PE, Adan RAH. The Val66Met polymorphism of the BDNF gene in anorexia nervosa: new data and a meta-analysis. World J Biol Psychiatry 2013; 14:441-51. [PMID: 21936709 DOI: 10.3109/15622975.2011.605470] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVES The Val66Met polymorphism (rs6265) of the BDNF gene is a non-synonymous polymorphism, previously associated with anorexia nervosa (AN). METHODS We genotyped rs6265 in 235 patients with AN and 643 controls. Furthermore, we performed a systematic review of all case-control and family-based studies testing this SNP in AN, and combined the results in a meta-analysis. RESULTS The results of the case-control study were non-significant. For the meta-analysis, nine studies were identified (ncases = 2,767; ncontrols = 3,322, ntrios = 53) and included. Primarily, the analyses indicated an association with OR of 1.11 (P = 0.024) in the allelic contrast, and OR of 1.14 (P = 0.025) for the dominant effect of the Met allele. However, additional analyses revealed that the first published study (from those included in the meta-analysis) overly influenced the pooled effect size (possibly due to a phenomenon known as a winner's curse). When this case-control study was replaced by a trio study (ntrios = 293) performed on a largely overlapping sample, the effect size became smaller and non-significant, both for the allelic contrast (OR = 1.07, P = 0.156) and the dominant effect (OR = 1.07, P = 0.319). The quality of included studies was good and there was no significant heterogeneity across the effect sizes. CONCLUSIONS Our analyses indicate that the BDNF Val66Met variant is not associated with AN at detectable levels.
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Affiliation(s)
- Marek K Brandys
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
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Danner UN, Evers C, Sternheim L, van Meer F, van Elburg AA, Geerets TAM, Breteler LMT, de Ridder DTD. Influence of negative affect on choice behavior in individuals with binge eating pathology. Psychiatry Res 2013; 207:100-6. [PMID: 23167986 DOI: 10.1016/j.psychres.2012.10.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 10/22/2012] [Accepted: 10/25/2012] [Indexed: 11/27/2022]
Abstract
Research suggests that individuals with binge eating pathology (e.g., bulimia nervosa (BN) and binge eating disorders (BED)) have decision making impairments and particularly act impulsively in response to negative affect. The aim of this study was to examine the influence of negative affect on choice behavior in women with BN and BED. Ninety women (59 with BN or BED and 31 healthy controls) watched a sad or control film fragment and were subsequently asked to complete a choice behavior task (as measured by a variation of the Bechara Gambling Task (BGT)). Results showed that negative affect influenced choice behavior differently in healthy controls and in women with BN and BED after punishment (but not after reward). In the context of increased negative affect, punishment was associated with more disadvantageous choice behavior in both BN and BED women but not in healthy controls, while the effect was the exact opposite in both groups after a decrease in negative affect. Levels of sadness were not found to influence choice behavior after reward in either groups. These findings suggest that emotional states may have a direct impact on choice behavior of individuals with binge eating pathology and are not only related to pathological behavior itself.
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Affiliation(s)
- Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands.
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Carrera O, Adan RAH, Gutierrez E, Danner UN, Hoek HW, van Elburg AA, Kas MJH. Hyperactivity in anorexia nervosa: warming up not just burning-off calories. PLoS One 2012; 7:e41851. [PMID: 22848634 PMCID: PMC3407098 DOI: 10.1371/journal.pone.0041851] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 06/29/2012] [Indexed: 02/03/2023] Open
Abstract
Excessive physical activity is a common feature in Anorexia Nervosa (AN) that interferes with the recovery process. Animal models have demonstrated that ambient temperature modulates physical activity in semi-starved animals. The aim of the present study was to assess the effect of ambient temperature on physical activity in AN patients in the acute phase of the illness. Thirty-seven patients with AN wore an accelerometer to measure physical activity within the first week of contacting a specialized eating disorder center. Standardized measures of anxiety, depression and eating disorder psychopathology were assessed. Corresponding daily values for ambient temperature were obtained from local meteorological stations. Ambient temperature was negatively correlated with physical activity (p = −.405) and was the only variable that accounted for a significant portion of the variance in physical activity (p = .034). Consistent with recent research with an analogous animal model of the disorder, our findings suggest that ambient temperature is a critical factor contributing to the expression of excessive physical activity levels in AN. Keeping patients warm may prove to be a beneficial treatment option for this symptom.
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Affiliation(s)
- Olaia Carrera
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
- Departamento de Psicologia Clinica y Psicobiologia, y Unidad Venres Clinicos Facultad de Psicologia, Universidad de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
- Complejo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
- Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
| | - Roger A. H. Adan
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
- Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
| | - Emilio Gutierrez
- Departamento de Psicologia Clinica y Psicobiologia, y Unidad Venres Clinicos Facultad de Psicologia, Universidad de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - Unna N. Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
- Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
| | - Hans W. Hoek
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
- Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
- Parnassia Bavo Psychiatric Institute, The Hague, The Netherlands
- Department of Psychiatry, Groningen University Medical Center, Groningen, The Netherlands
- Department of Epidemiology, Columbia University, New York, New York, United States of America
| | - Annemarie A. van Elburg
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, Zeist, The Netherlands
- Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
| | - Martien J. H. Kas
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
- Utrecht Research Group Eating Disorders, Utrecht, The Netherlands
- * E-mail:
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Danner UN, Sanders N, Smeets PAM, van Meer F, Adan RAH, Hoek HW, van Elburg AA. Neuropsychological weaknesses in anorexia nervosa: set-shifting, central coherence, and decision making in currently ill and recovered women. Int J Eat Disord 2012; 45:685-94. [PMID: 22331528 DOI: 10.1002/eat.22007] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/31/2011] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The purpose of this study is to examine set-shifting, central coherence, and decision making in women currently ill with anorexia nervosa (AN), women recovered from AN, and healthy control women. We aim to test whether these neuropsychological weaknesses persist after recovery, and explore relations between the impairments RESULTS Compared to control women, ill and recovered women showed poor set-shifting and decision making. There were strong correlations between set-shifting and central coherence in the ill and recovered women. Decision making did not correlate with the other measures. DISCUSSION The present findings suggest that impaired set-shifting and decision making are stable traits in women with AN. Because individual differences within these groups were large, a rigid thinking style is only present in a (sub)population of ill and recovered women. Decision-making performance is not related to a rigid thinking style, but further research in this area is warranted.
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Affiliation(s)
- Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands.
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Danner UN, Evers C, Stok FM, van Elburg AA, de Ridder DTD. A double burden: emotional eating and lack of cognitive reappraisal in eating disordered women. Eur Eat Disord Rev 2012; 20:490-5. [PMID: 22585557 DOI: 10.1002/erv.2184] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To examine the influence of emotional eating and lack of cognitive reappraisal on eating pathology in women with binge-purge and restricting type eating disorders. METHOD Women with a diagnosis of anorexia or bulimia nervosa according to the DSM-IV-tr (n = 50) and non-clinical women without eating disorders (n = 52) were asked about emotional eating tendencies, adaptive emotion regulation strategies (cognitive reappraisal) and eating pathology symptoms. RESULTS In binge-purging women, emotional eating with limited use of cognitive reappraisal predicted level of eating pathology but not in the restricting and non-clinical women. DISCUSSION Emotional eating tendencies in combination with a low tendency to use cognitive reappraisal may influence the severity of eating pathology in individuals with binge-purge behaviours. Evidently, patients with these characteristics require a therapy that addresses adaptive emotion regulation skills.
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Affiliation(s)
- Unna N Danner
- Altrecht Eating Disorders Rintveld, Altrecht Mental Health Institute, The Netherlands.
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van Elburg AA, Hillebrand JJG, Huyser C, Snoek M, Kas MJH, Hoek HW, Adan RAH. Mandometer treatment not superior to treatment as usual for anorexia nervosa. Int J Eat Disord 2012; 45:193-201. [PMID: 21520215 DOI: 10.1002/eat.20918] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/20/2010] [Indexed: 11/07/2022]
Abstract
OBJECTIVE A comparison of the efficacy of a novel treatment method for anorexia nervosa (AN), the Mandometer treatment (MT), with treatment as usual (TAU). METHOD During treatment data were collected to determine weight recovery and outcome as assessed by the Morgan Russell Outcome Assessment Schedule (MROAS). RESULTS After treatment 63% of the MT group and 85% of the TAU group had reached a normal weight level and both MT and TAU showed a good outcome on the MROAS (75 and 71%, respectively). After two years more MT than TAU patients were still in treatment and more MT patients had relapsed. DISCUSSION The outcome for both treatments in our study were similar and comparable with, if not better than outcome data of other AN studies. MT is not superior to TAU in outcome results and in relapse rate during the first two years following admission for AN treatment.
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Affiliation(s)
- Annemarie A van Elburg
- Rintveld Centre for Eating Disorders, Altrecht Mental Health Institute, Zeist, The Netherlands
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Abstract
OBJECTIVES Brain derived neurotrophic factor (BDNF) is involved in neuroplasticity, and in the homeostatic regulation of food intake and energy expenditure. It also has a role in stress responsivity and reward processing. On the basis of its involvement in these various processes, BDNF can be hypothesized to be an important factor in the development and maintenance of anorexia nervosa (AN). This study meta-analytically summarizes investigations of serum BDNF concentrations in people currently ill with AN, in comparison to healthy controls. METHODS Seven studies measuring BDNF in serum of individuals with AN (n=155) and healthy controls (n=174) were identified and included in the meta-analysis of the mean differences between case and control groups. RESULTS This study confirms that AN is associated with decreased serum BDNF concentrations, in comparison to healthy controls. The combined effect size (standardized mean difference, SMD) was large (SMD=-0.96; 95% CI -1.33 to -0.59; P<0.001). Significant heterogeneity of effect sizes was identified (I(2)=58.3%; P<0.001), which emerged as being primarily attributable to the first published study on the investigated association. CONCLUSIONS The present meta-analytical summary of studies measuring circulating BDNF concentrations in women with AN and healthy controls confirms that it is significantly reduced in this patient group. Difficulties associated with the measurement of BDNF have been identified and potential confounding factors have been discussed. Current data do not allow inferences to be made about causal links between levels of circulating BDNF and AN. However, possible explanations for the relationship between BDNF and AN have been presented.
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Affiliation(s)
- Marek K Brandys
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Centre Utrecht, Utrecht, The Netherlands
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Brandys MK, van Elburg AA, Loos RJF, Bauer F, Hendriks J, van der Schouw YT, Adan RAH. Are recently identified genetic variants regulating BMI in the general population associated with anorexia nervosa? Am J Med Genet B Neuropsychiatr Genet 2010; 153B:695-699. [PMID: 19746409 DOI: 10.1002/ajmg.b.31026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The influence of body mass index (BMI) on susceptibility to anorexia nervosa (AN) is not clear. Recently published genome-wide association (GWA) studies of the general population identified several variants influencing BMI. We genotyped these variants in an AN sample to test for association and to investigate a combined effect of BMI-increasing alleles (as determined in the original GWA studies) on the risk of developing the disease. Individual single nucleotide polymorphisms (SNPs) were tested for association with AN in a sample of 267 AN patients and 1,636 population controls. A logistic regression for the combined effect of BMI-increasing alleles included 225 cases and 1,351 controls. We found no significant association between individual SNPs and AN. The analysis of a combined effect of BMI-increasing alleles showed absence of association with the investigated condition. The percentages of BMI-increasing alleles were equal between cases and controls. This study found no evidence that genetic variants regulating BMI in the general population are significantly associated with susceptibility to AN.
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Affiliation(s)
- Marek K Brandys
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Annemarie A van Elburg
- Department of Child and Adolescent Psychiatry, University Medical Centre, Utrecht, The Netherlands.,Rintveld Centre for Eating Disorders, Altrecht Mental Health Institute, Zeist, The Netherlands
| | - Ruth J F Loos
- Medical Research Council Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge, UK
| | - Florianne Bauer
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.,Complex Genetics Section, Department of Medical Genetics-DBG, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Judith Hendriks
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Yvonne T van der Schouw
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Roger A H Adan
- Department of Neuroscience & Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
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van Elburg AA, Eijkemans MJ, Kas MJ, Themmen AP, de Jong FH, van Engeland H, Fauser BC. Predictors of recovery of ovarian function during weight gain in anorexia nervosa. Fertil Steril 2007; 87:902-8. [DOI: 10.1016/j.fertnstert.2006.11.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2006] [Revised: 10/23/2006] [Accepted: 11/02/2006] [Indexed: 11/28/2022]
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Abstract
Up to 80% of patients with anorexia nervosa (AN) manifest elevated levels of physical activity or hyperactivity. A variety of methods have been used to evaluate activity levels, mostly questionnaires but also expensive and invasive methods such as actometry or other measurements of energy expenditure. Nurse observations have heretofore not been tested for validity and reliability. In this study, 18 patients with AN under treatment in a specialized eating disorder centre simultaneously rated their own physical activity levels, used an actometer, and were observed for physical activity by trained nurses. We found that nurse ratings of activity correlated significantly with the average actometer activity score (r = 0.61, p < 0.01). Patients could not rate their own activity levels accurately. Nurse observation of activity levels of AN patients during treatment is a reliable and useful monitoring tool.
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Affiliation(s)
- Annemarie A van Elburg
- Department of Child and Adolescent Psychiatry, University Medical Centre, Utrecht, The Netherlands.
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de Krom M, de Rijke CE, Hendriks J, van Engeland H, van Elburg AA, Adan RAH. Mutation analysis of the agouti related protein promoter region and the melanocortin-3 receptor in anorexia nervosa patients. Psychiatr Genet 2006; 15:237. [PMID: 16314751 DOI: 10.1097/00041444-200512000-00003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Mariken de Krom
- Rudolf Magnus Institute of Neuroscience, UMCU, Utrecht, The Netherlands
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Hillebrand JJG, van Elburg AA, Kas MJH, van Engeland H, Adan RAH. Olanzapine reduces physical activity in rats exposed to activity-based anorexia: possible implications for treatment of anorexia nervosa? Biol Psychiatry 2005; 58:651-7. [PMID: 16018979 DOI: 10.1016/j.biopsych.2005.04.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2004] [Revised: 03/31/2005] [Accepted: 04/06/2005] [Indexed: 11/22/2022]
Abstract
BACKGROUND Anorexia nervosa (AN) patients often show extreme hypophagia and excessive physical activity. Activity-based anorexia (ABA) is considered an animal model of AN and mimics food restriction and hyperactivity in rats. This study investigated whether treatment with olanzapine (Zyprexa) reduces the development of ABA in rats. The effect of olanzapine treatment in AN patients was also evaluated in a small open-label study. METHODS Rats were chronically (1 week) infused with olanzapine (7.5 mg/kg) and exposed to the ABA model or ad libitum feeding. Hyperactive AN patients were followed for up to 3 months of olanzapine treatment (5 mg/kg). RESULTS Olanzapine treatment reduced development of ABA in rats by reducing running wheel activity, starvation-induced hypothermia and activation of the hypothalamus-pituitary-adrenal axis. Olanzapine treatment reduced activity levels of AN patients compared with untreated AN patients, without affecting body weight and plasma leptin levels. CONCLUSIONS Olanzapine treatment reduced wheel running and thereby diminished development of ABA in rats. Olanzapine treatment also reduced physical activity in hyperactive AN patients in a small open-label study. These data support the need for controlled studies investigating the putative beneficial effects of olanzapine treatment in AN patients.
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Affiliation(s)
- Jacquelien J G Hillebrand
- Department of Pharmacology and Anatomy, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG Utrecht, the Netherlands
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