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Xavier G, Navarrete Santos A, Hartmann C, Santoro ML, Flegel N, Reinsch J, Majer A, Ehrhardt T, Pfeifer J, Simm A, Hollemann T, Belangero SI, Rujescu D, Jung M. Comparison of Extracellular Vesicles from Induced Pluripotent Stem Cell-Derived Brain Cells. Int J Mol Sci 2024; 25:3575. [PMID: 38612385 PMCID: PMC11011287 DOI: 10.3390/ijms25073575] [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: 02/13/2024] [Revised: 03/08/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
The pathophysiology of many neuropsychiatric disorders is still poorly understood. Identification of biomarkers for these diseases could benefit patients due to better classification and stratification. Exosomes excreted into the circulatory system can cross the blood-brain barrier and carry a cell type-specific set of molecules. Thus, exosomes are a source of potential biomarkers for many diseases, including neuropsychiatric disorders. Here, we investigated exosomal proteins produced from human-induced pluripotent stem cells (iPSCs) and iPSC-derived neural stem cells, neural progenitors, neurons, astrocytes, microglia-like cells, and brain capillary endothelial cells. Of the 31 exosome surface markers analyzed, a subset of biomarkers were significantly enriched in astrocytes (CD29, CD44, and CD49e), microglia-like cells (CD44), and neural stem cells (SSEA4). To identify molecular fingerprints associated with disease, circulating exosomes derived from healthy control (HC) individuals were compared against schizophrenia (SCZ) patients and late-onset Alzheimer's disease (LOAD) patients. A significant epitope pattern was identified for LOAD (CD1c and CD2) but not for SCZ compared to HC. Thus, analysis of cell type- and disease-specific exosome signatures of iPSC-derived cell cultures may provide a valuable model system to explore proteomic biomarkers for the identification of novel disease profiles.
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Affiliation(s)
- Gabriela Xavier
- LiNC—Laboratory of Integrative Neuroscience, Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 05039-032, Brazil
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 04023-900, Brazil
| | - Alexander Navarrete Santos
- Centre for Medical Basic Research, Medical Faculty, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Carla Hartmann
- Institute for Physiological Chemistry, Medical Faculty, Martin Luther University Halle-Wittenberg, 06114 Halle (Saale), Germany; (C.H.)
| | - Marcos L. Santoro
- LiNC—Laboratory of Integrative Neuroscience, Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 05039-032, Brazil
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 04023-900, Brazil
| | - Nicole Flegel
- Institute for Biochemistry, Friedrich Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany;
| | - Jessica Reinsch
- Institute for Physiological Chemistry, Medical Faculty, Martin Luther University Halle-Wittenberg, 06114 Halle (Saale), Germany; (C.H.)
| | - Annika Majer
- Institute for Physiological Chemistry, Medical Faculty, Martin Luther University Halle-Wittenberg, 06114 Halle (Saale), Germany; (C.H.)
| | - Toni Ehrhardt
- Institute for Physiological Chemistry, Medical Faculty, Martin Luther University Halle-Wittenberg, 06114 Halle (Saale), Germany; (C.H.)
| | - Jenny Pfeifer
- Institute for Physiological Chemistry, Medical Faculty, Martin Luther University Halle-Wittenberg, 06114 Halle (Saale), Germany; (C.H.)
| | - Andreas Simm
- Clinic for Cardiac and Thoracic Surgery, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Thomas Hollemann
- Institute for Physiological Chemistry, Medical Faculty, Martin Luther University Halle-Wittenberg, 06114 Halle (Saale), Germany; (C.H.)
| | - Sintia I. Belangero
- LiNC—Laboratory of Integrative Neuroscience, Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 05039-032, Brazil
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 04023-900, Brazil
| | - Dan Rujescu
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Matthias Jung
- Institute for Physiological Chemistry, Medical Faculty, Martin Luther University Halle-Wittenberg, 06114 Halle (Saale), Germany; (C.H.)
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2
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Lorenzi CH, Teixeira Leffa D, Bressan R, Belangero S, Gadelha A, Santoro ML, Salum GA, Rohde LA, Caye A. Replication of a predictive model for youth ADHD in an independent sample from a developing country. J Child Psychol Psychiatry 2023; 64:167-174. [PMID: 35959538 DOI: 10.1111/jcpp.13682] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/21/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Very few predictive models in Psychiatry had their performance validated in independent external samples. A previously developed multivariable demographic model for attention-deficit/hyperactivity disorder (ADHD) accurately predicted young adulthood ADHD using clinical and demographical information collected in childhood in three samples from developed countries, but failed to replicate its performance in a sample from a developing country. Furthermore, consolidated risk factors for ADHD were not included among its predictors. METHODS Participants were 1905 children and adolescents from a community-based sample and followed from ages 6 to 14 years at baseline to ages 14 to 23 years (mean age 18) at follow-up. We applied the intercept and weights of the original model to the data, calculating the predicted probability of each participant according to the set of predictors collected in childhood, and compared the estimates with the actual outcome (ADHD) collected during adolescence and young adulthood. We explored the performance of the original model, and of models including novel predictors (prematurity, family history of ADHD, and polygenic risk score for ADHD). RESULTS The observed area under the curve of the original model was .76 (95% Confidence Interval .70 to .82). The multivariable demographical model outperformed single variable models using only prematurity, family history, or the ADHD PRS. Adding either of these variables, or all at once, did not improve the performance of the original demographical model. CONCLUSIONS Our findings suggest that the originally developed ADHD predictive model is suitable for use in different settings for clinical and research purposes.
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Affiliation(s)
- Cezar H Lorenzi
- ADHD Outpatient Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Psychiatry, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Douglas Teixeira Leffa
- ADHD Outpatient Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Psychiatry, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil
| | - Rodrigo Bressan
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil.,Post-Graduation Program in Psychiatry and Medical Psychology, UNIFESP, São Paulo, Brazil
| | - Sintia Belangero
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil.,Post-Graduation Program in Psychiatry and Medical Psychology, UNIFESP, São Paulo, Brazil.,Genetics Division, Department of Morphology and Genetics, UNIFESP, São Paulo, Brazil
| | - Ary Gadelha
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil.,Post-Graduation Program in Psychiatry and Medical Psychology, UNIFESP, São Paulo, Brazil
| | - Marcos L Santoro
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil.,Post-Graduation Program in Psychiatry and Medical Psychology, UNIFESP, São Paulo, Brazil.,Genetics Division, Department of Morphology and Genetics, UNIFESP, São Paulo, Brazil
| | - Giovanni A Salum
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil
| | - Luis Augusto Rohde
- ADHD Outpatient Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Psychiatry, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil
| | - Arthur Caye
- ADHD Outpatient Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Psychiatry, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,National Institute of Developmental Psychiatry for Children and Adolescents (INPD), São Paulo, Brazil
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3
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Brouwer RM, Klein M, Grasby KL, Schnack HG, Jahanshad N, Teeuw J, Thomopoulos SI, Sprooten E, Franz CE, Gogtay N, Kremen WS, Panizzon MS, Olde Loohuis LM, Whelan CD, Aghajani M, Alloza C, Alnæs D, Artiges E, Ayesa-Arriola R, Barker GJ, Bastin ME, Blok E, Bøen E, Breukelaar IA, Bright JK, Buimer EEL, Bülow R, Cannon DM, Ciufolini S, Crossley NA, Damatac CG, Dazzan P, de Mol CL, de Zwarte SMC, Desrivières S, Díaz-Caneja CM, Doan NT, Dohm K, Fröhner JH, Goltermann J, Grigis A, Grotegerd D, Han LKM, Harris MA, Hartman CA, Heany SJ, Heindel W, Heslenfeld DJ, Hohmann S, Ittermann B, Jansen PR, Janssen J, Jia T, Jiang J, Jockwitz C, Karali T, Keeser D, Koevoets MGJC, Lenroot RK, Malchow B, Mandl RCW, Medel V, Meinert S, Morgan CA, Mühleisen TW, Nabulsi L, Opel N, de la Foz VOG, Overs BJ, Paillère Martinot ML, Redlich R, Marques TR, Repple J, Roberts G, Roshchupkin GV, Setiaman N, Shumskaya E, Stein F, Sudre G, Takahashi S, Thalamuthu A, Tordesillas-Gutiérrez D, van der Lugt A, van Haren NEM, Wardlaw JM, Wen W, Westeneng HJ, Wittfeld K, Zhu AH, Zugman A, Armstrong NJ, Bonfiglio G, Bralten J, Dalvie S, Davies G, Di Forti M, Ding L, Donohoe G, Forstner AJ, Gonzalez-Peñas J, Guimaraes JPOFT, Homuth G, Hottenga JJ, Knol MJ, Kwok JBJ, Le Hellard S, Mather KA, Milaneschi Y, Morris DW, Nöthen MM, Papiol S, Rietschel M, Santoro ML, Steen VM, Stein JL, Streit F, Tankard RM, Teumer A, van 't Ent D, van der Meer D, van Eijk KR, Vassos E, Vázquez-Bourgon J, Witt SH, Adams HHH, Agartz I, Ames D, Amunts K, Andreassen OA, Arango C, Banaschewski T, Baune BT, Belangero SI, Bokde ALW, Boomsma DI, Bressan RA, Brodaty H, Buitelaar JK, Cahn W, Caspers S, Cichon S, Crespo-Facorro B, Cox SR, Dannlowski U, Elvsåshagen T, Espeseth T, Falkai PG, Fisher SE, Flor H, Fullerton JM, Garavan H, Gowland PA, Grabe HJ, Hahn T, Heinz A, Hillegers M, Hoare J, Hoekstra PJ, Ikram MA, Jackowski AP, Jansen A, Jönsson EG, Kahn RS, Kircher T, Korgaonkar MS, Krug A, Lemaitre H, Malt UF, Martinot JL, McDonald C, Mitchell PB, Muetzel RL, Murray RM, Nees F, Nenadić I, Oosterlaan J, Ophoff RA, Pan PM, Penninx BWJH, Poustka L, Sachdev PS, Salum GA, Schofield PR, Schumann G, Shaw P, Sim K, Smolka MN, Stein DJ, Trollor JN, van den Berg LH, Veldink JH, Walter H, Westlye LT, Whelan R, White T, Wright MJ, Medland SE, Franke B, Thompson PM, Hulshoff Pol HE. Genetic variants associated with longitudinal changes in brain structure across the lifespan. Nat Neurosci 2022; 25:421-432. [PMID: 35383335 PMCID: PMC10040206 DOI: 10.1038/s41593-022-01042-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [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: 08/28/2020] [Accepted: 02/28/2022] [Indexed: 02/08/2023]
Abstract
Human brain structure changes throughout the lifespan. Altered brain growth or rates of decline are implicated in a vast range of psychiatric, developmental and neurodegenerative diseases. In this study, we identified common genetic variants that affect rates of brain growth or atrophy in what is, to our knowledge, the first genome-wide association meta-analysis of changes in brain morphology across the lifespan. Longitudinal magnetic resonance imaging data from 15,640 individuals were used to compute rates of change for 15 brain structures. The most robustly identified genes GPR139, DACH1 and APOE are associated with metabolic processes. We demonstrate global genetic overlap with depression, schizophrenia, cognitive functioning, insomnia, height, body mass index and smoking. Gene set findings implicate both early brain development and neurodegenerative processes in the rates of brain changes. Identifying variants involved in structural brain changes may help to determine biological pathways underlying optimal and dysfunctional brain development and aging.
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Affiliation(s)
- Rachel M Brouwer
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands.
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU Amsterdam, Amsterdam, The Netherlands.
| | - Marieke Klein
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Katrina L Grasby
- Psychiatric Genetics, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Hugo G Schnack
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
- Utrecht Institute of Linguistics OTS, Utrecht University, Utrecht, The Netherlands
| | - Neda Jahanshad
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Jalmar Teeuw
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - 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, CA, USA
| | - Emma Sprooten
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Carol E Franz
- Department of Psychiatry and Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA, USA
| | - Nitin Gogtay
- American Psychiatric Association, Washington, DC, USA
| | - William S Kremen
- Department of Psychiatry and Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA, USA
- VA San Diego Center of Excellence for Stress and Mental Health, San Diego, CA, USA
| | - Matthew S Panizzon
- Department of Psychiatry and Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA, USA
| | - Loes M Olde Loohuis
- Center for Neurobehavioral Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | | | - Moji Aghajani
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
- Institute of Education & Child Studies, Section Forensic Family & Youth Care, Leiden University, Leiden, The Netherlands
| | - Clara Alloza
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Dag Alnæs
- NORMENT Centre, University of Oslo, Oslo, Norway
- Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Eric Artiges
- INSERM U1299 Trajectoires Développementales en Psychiatrie, Ecole Normale Supérieure Paris-Saclay, Université Paris Saclay, Université Paris Cité, CNRS UMR 9010; Centre Borelli, Gif-sur-Yvette, France
| | - Rosa Ayesa-Arriola
- Valdecilla Biomedical Research Institute (IDIVAL), Marqués de Valdecilla University Hospital (HUMV), School of Medicine, University of Cantabria, Santander, Spain
- CIBERSAM, Biomedical Research Network on Mental Health Area, Santander, Spain
- Universidad de Cantabria, Santander, Spain
| | - Gareth J Barker
- Department of Neuroimaging, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Mark E Bastin
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
- Edinburgh Imaging, University of Edinburgh, Edinburgh, UK
| | - Elisabet Blok
- Department of Child and Adolescent Psychiatry/Psychology, Sophia Children's Hospital, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Erlend Bøen
- Psychosomatic and CL Psychiatry, Oslo University Hospital, Oslo, Norway
| | - Isabella A Breukelaar
- Brain Dynamics Centre, Westmead Institute for Medical Research, University of Sydney, Westmead, NSW, Australia
| | - Joanna K Bright
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Elizabeth E L Buimer
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Robin Bülow
- Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Dara M Cannon
- Centre for Neuroimaging, Cognition and Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland
| | - Simone Ciufolini
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Nicolas A Crossley
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Christienne G Damatac
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Paola Dazzan
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Casper L de Mol
- Department of Neurology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Sonja M C de Zwarte
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Sylvane Desrivières
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Covadonga M Díaz-Caneja
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | | | - Katharina Dohm
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Juliane H Fröhner
- Section of Systems Neuroscience, Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - Janik Goltermann
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Antoine Grigis
- Université Paris-Saclay, CEA, Neurospin, Gif-sur-Yvette, France
| | - Dominik Grotegerd
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Laura K M Han
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Mathew A Harris
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Catharina A Hartman
- University of Groningen, University Medical Center Groningen, Department of Psychiatry, Interdisciplinary Center Psychopathology and Emotion Regulation (ICPE), Groningen, The Netherlands
| | - Sarah J Heany
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Walter Heindel
- Clinic for Radiology, University Hospital Münster, Münster, Germany
| | - Dirk J Heslenfeld
- Departments of Experimental and Clinical Psychology, Amsterdam, The Netherlands
| | - Sarah Hohmann
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | | | - Philip R Jansen
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU Amsterdam, Amsterdam, The Netherlands
- Department of Child and Adolescent Psychiatry/Psychology, Sophia Children's Hospital, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Human Genetics, VUmc, Amsterdam UMC, Amsterdam, The Netherlands
| | - Joost Janssen
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Tianye Jia
- Centre for Population Neuroscience and Precision Medicine (PONS), Institute of Science and Technology for Brain-Inspired Intelligence and MoE Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence, Fudan University, Shanghai, China
- Centre for Population Neuroscience and Precision Medicine (PONS), Institute of Psychiatry, Psychology and Neuroscience, SGDP Centre, King's College London, London, UK
| | - Jiyang Jiang
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
| | - Christiane Jockwitz
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
- Institute for Anatomy I, Medical Faculty & University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Temmuz Karali
- Department of Psychiatry and Psychotherapy, University Hospital LMU, Munich, Germany
- NeuroImaging Core Unit Munich (NICUM), University Hospital LMU, Munich, Germany
| | - Daniel Keeser
- Department of Psychiatry and Psychotherapy, University Hospital LMU, Munich, Germany
- NeuroImaging Core Unit Munich (NICUM), University Hospital LMU, Munich, Germany
- Munich Center for Neurosciences (MCN) - Brain & Mind, Planegg-Martinsried, Germany
| | - Martijn G J C Koevoets
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Rhoshel K Lenroot
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
- School of Psychiatry and Behavioral Sciences, School of Medicine, University of New Mexico, Albuquerque, NM, USA
- Neuroscience Research Australia, Sydney, NSW, Australia
| | - Berend Malchow
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany
| | - René C W Mandl
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Vicente Medel
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susanne Meinert
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
- Institute for Translational Neuroscience, University of Münster, Münster, Germany
| | - Catherine A Morgan
- School of Psychology and Centre for Brain Research, University of Auckland, Auckland, New Zealand
- Brain Research New Zealand - Rangahau Roro Aotearoa, Auckland, New Zealand
| | - Thomas W Mühleisen
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
- Cécile and Oskar Vogt Institute for Brain Research, Medical Faculty, University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Leila Nabulsi
- Centre for Neuroimaging, Cognition and Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland
| | - Nils Opel
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
- Department of Psychiatry, Jena University Hospital/Friedrich-Schiller-University Jena, Jena, Germany
| | - Víctor Ortiz-García de la Foz
- Valdecilla Biomedical Research Institute (IDIVAL), Marqués de Valdecilla University Hospital (HUMV), School of Medicine, University of Cantabria, Santander, Spain
- CIBERSAM, Biomedical Research Network on Mental Health Area, Santander, Spain
- Neuroimaging Unit, Technological Facilities, Valdecilla Biomedical Research Institute IDIVAL, Santander, Spain
| | | | - Marie-Laure Paillère Martinot
- INSERM U1299 Trajectoires Développementales en Psychiatrie, Ecole Normale Supérieure Paris-Saclay, Université Paris Saclay, Université Paris Cité, CNRS UMR 9010; Centre Borelli, Gif-sur-Yvette, France
- APHP, Sorbonne Université, Pitie-Salpetriere Hospital, Department of Child and Adolescent Psychiatry, Paris, France
| | - Ronny Redlich
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
- Department of Psychology, University of Halle, Halle, Germany
| | - Tiago Reis Marques
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Psychiatric Imaging Group, MRC London Institute of Medical Sciences (LMS), Imperial College London, London, UK
| | - Jonathan Repple
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Gloria Roberts
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - Gennady V Roshchupkin
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Radiology & Nuclear Medicine, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Nikita Setiaman
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
- Department of Child and Adolescent Psychiatry/Psychology, Sophia Children's Hospital, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Elena Shumskaya
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frederike Stein
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Gustavo Sudre
- Social and Behavioral Research Branch, National Human Genome Research Institute, Bethesda, MD, USA
| | - Shun Takahashi
- Department of Psychiatry and Psychotherapy, University Hospital LMU, Munich, Germany
- Department of Neuropsychiatry, Wakayama Medical University, Wakayama, Japan
| | - Anbupalam Thalamuthu
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
| | - Diana Tordesillas-Gutiérrez
- Department of Radiology, IDIVAL, Marqués de Valdecilla University Hospital, Santander, Spain
- Advanced Computing and e-Science, Instituto de Física de Cantabria (UC-CSIC), Santander, Spain
| | - Aad van der Lugt
- Department of Radiology & Nuclear Medicine, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Neeltje E M van Haren
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
- Department of Child and Adolescent Psychiatry/Psychology, Sophia Children's Hospital, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Joanna M Wardlaw
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
- Centre for Clinical Brain Sciences and UK Dementia Research Institute Centre, University of Edinburgh, Edinburgh, UK
| | - Wei Wen
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
| | - Henk-Jan Westeneng
- Department of Neurology, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Katharina Wittfeld
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Alyssa H Zhu
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Andre Zugman
- Laboratory of Integrative Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), CNPq, São Paulo, Brazil
| | | | - Gaia Bonfiglio
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU Amsterdam, Amsterdam, The Netherlands
| | - Janita Bralten
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Shareefa Dalvie
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Gail Davies
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
- Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Marta Di Forti
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Linda Ding
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Gary Donohoe
- Centre for Neuroimaging, Cognition and Genomics (NICOG), School of Psychology and Discipline of Biochemistry, National University of Ireland Galway, Galway, Ireland
| | - Andreas J Forstner
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
- Centre for Human Genetics, Philipps-University Marburg, Marburg, Germany
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Javier Gonzalez-Peñas
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Joao P O F T Guimaraes
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Georg Homuth
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Jouke-Jan Hottenga
- Netherlands Twin Register, Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
| | - Maria J Knol
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - John B J Kwok
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Stephanie Le Hellard
- NORMENT Centre of Excellence, Department of Clinical Science, University of Bergen, Bergen, Norway
- Dr. Einar Martens Research Group for Biological Psychiatry, Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
| | - Karen A Mather
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
- Neuroscience Research Australia, Sydney, NSW, Australia
| | - Yuri Milaneschi
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Derek W Morris
- Centre for Neuroimaging, Cognition and Genomics (NICOG), School of Psychology and Discipline of Biochemistry, National University of Ireland Galway, Galway, Ireland
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Sergi Papiol
- CIBERSAM, Biomedical Research Network on Mental Health Area, Santander, Spain
- Department of Psychiatry and Psychotherapy, University Hospital LMU, Munich, Germany
- Institute of Psychiatric Phenomics and Genomics (IPPG), University Hospital LMU, Munich, Germany
| | - Marcella Rietschel
- Department of Genetic Epidemiology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Marcos L Santoro
- Laboratory of Integrative Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), CNPq, São Paulo, Brazil
- Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Vidar M Steen
- NORMENT Centre of Excellence, Department of Clinical Science, University of Bergen, Bergen, Norway
- Dr. Einar Martens Research Group for Biological Psychiatry, Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
| | - Jason L Stein
- Department of Genetics & UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Fabian Streit
- Department of Genetic Epidemiology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Rick M Tankard
- Mathematics and Statistics, Curtin University, Perth, WA, Australia
| | - Alexander Teumer
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Dennis van 't Ent
- Netherlands Twin Register, Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
| | - Dennis van der Meer
- NORMENT Centre, University of Oslo, Oslo, Norway
- Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- School of Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Kristel R van Eijk
- Department of Neurology, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Evangelos Vassos
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- NIHR Maudsley Biomedical Research Centre, South London and Maudsley NHS Trust, London, UK
| | - Javier Vázquez-Bourgon
- Valdecilla Biomedical Research Institute (IDIVAL), Marqués de Valdecilla University Hospital (HUMV), School of Medicine, University of Cantabria, Santander, Spain
- CIBERSAM, Biomedical Research Network on Mental Health Area, Santander, Spain
- Universidad de Cantabria, Santander, Spain
| | - Stephanie H Witt
- Department of Genetic Epidemiology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | - Hieab H H Adams
- Department of Radiology & Nuclear Medicine, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Clinical Genetics, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibanez, Santiago, Chile
| | - Ingrid Agartz
- NORMENT Centre, University of Oslo, Oslo, Norway
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - David Ames
- Academic Unit for Psychiatry of Old Age, University of Melbourne, Parkville, VIC, Australia
- National Ageing Research Institute, Parkville, VIC, Australia
| | - Katrin Amunts
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
- Cécile and Oskar Vogt Institute for Brain Research, Medical Faculty, University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Ole A Andreassen
- NORMENT Centre, University of Oslo, Oslo, Norway
- Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Celso Arango
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Tobias Banaschewski
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - Bernhard T Baune
- Department of Psychiatry, University of Melbourne, Melbourne VIC, Australia
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC, Australia
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Sintia I Belangero
- Laboratory of Integrative Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), CNPq, São Paulo, Brazil
- Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Arun L W Bokde
- Discipline of Psychiatry and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - Dorret I Boomsma
- Netherlands Twin Register, Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
| | - Rodrigo A Bressan
- Laboratory of Integrative Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), CNPq, São Paulo, Brazil
- Instituto Ame Sua Mente, São Paulo, Brazil
| | - Henry Brodaty
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
| | - Jan K Buitelaar
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
- Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, The Netherlands
| | - Wiepke Cahn
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
- Altrecht Science, Altrecht Mental Health Institute, Utrecht, The Netherlands
| | - Svenja Caspers
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
- Institute for Anatomy I, Medical Faculty & University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Sven Cichon
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Benedicto Crespo-Facorro
- CIBERSAM, Biomedical Research Network on Mental Health Area, Santander, Spain
- Department of Psychiatry, Virgen del Rocio University Hospital, School of Medicine, University of Seville, IBIS, Seville, Spain
| | - Simon R Cox
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
- Scottish Imaging Network, A Platform for Scientific Excellence (SINAPSE) Collaboration, Edinburgh, UK
| | - Udo Dannlowski
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Torbjørn Elvsåshagen
- NORMENT Centre, Oslo University Hospital, Oslo, Norway
- Department of Neurology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Thomas Espeseth
- Department of Psychology, University of Oslo, Oslo, Norway
- Bjørknes College, Oslo, Norway
| | - Peter G Falkai
- Department of Psychiatry and Psychotherapy, University Hospital LMU, Munich, Germany
| | - Simon E Fisher
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
| | - Herta Flor
- Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Janice M Fullerton
- Neuroscience Research Australia, Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Hugh Garavan
- Department of Psychiatry, University of Vermont, Burlington, VT, USA
| | - Penny A Gowland
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, UK
| | - Hans J Grabe
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Tim Hahn
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | | | - Manon Hillegers
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
- Department of Child and Adolescent Psychiatry/Psychology, Sophia Children's Hospital, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jacqueline Hoare
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
- Faculty of Health, Peninsula Medical School, University of Plymouth, Plymouth, UK
| | - Pieter J Hoekstra
- University of Groningen, University Medical Center Groningen, Department of Child and Adolescent Psychiatry & Accare Child Study Center, Groningen, The Netherlands
| | - Mohammad A Ikram
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Andrea P Jackowski
- Laboratory of Integrative Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), CNPq, São Paulo, Brazil
| | - Andreas Jansen
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
- Core-Facility Brainimaging, Faculty of Medicine, University of Marburg, Marburg, Germany
| | - Erik G Jönsson
- NORMENT Centre, University of Oslo, Oslo, Norway
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden
| | - Rene S Kahn
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- VISN 2 Mental Illness Research, Education & Clinical Center (MIRECC), James J. Peters Department of Veterans Affairs Medical Center, Bronx, NY, USA
| | - Tilo Kircher
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Mayuresh S Korgaonkar
- Brain Dynamics Centre, Westmead Institute for Medical Research, University of Sydney, Westmead, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Axel Krug
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
- Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
| | - Herve Lemaitre
- Groupe d'Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives, CNRS UMR 5293, Université de Bordeaux, Centre Broca Nouvelle-Aquitaine, Bordeaux, France
| | - Ulrik F Malt
- Unit for Psychosomatic Medicine and C-L Psychiatry, University of Oslo, Oslo, Norway
| | - Jean-Luc Martinot
- INSERM U1299 Trajectoires Développementales en Psychiatrie, Ecole Normale Supérieure Paris-Saclay, Université Paris Saclay, Université Paris Cité, CNRS UMR 9010; Centre Borelli, Gif-sur-Yvette, France
| | - Colm McDonald
- Centre for Neuroimaging, Cognition and Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland
| | - Philip B Mitchell
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - Ryan L Muetzel
- Department of Child and Adolescent Psychiatry/Psychology, Sophia Children's Hospital, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Robin M Murray
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Frauke Nees
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
- Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Institute of Medical Psychology and Medical Sociology, University Medical Center Schleswig-Holstein, Kiel University, Kiel, Germany
| | - Igor Nenadić
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Jaap Oosterlaan
- Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Emma Neuroscience Group, Department of Pediatrics, Amsterdam Reproduction & Development, Amsterdam, The Netherlands
- Vrije Universiteit, Clinical Neuropsychology Section, Amsterdam, The Netherlands
| | - Roel A Ophoff
- Center for Neurobehavioral Genetics, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Psychiatry, Erasmus Medical Center, Erasmus University, Rotterdam, The Netherlands
| | - Pedro M Pan
- Laboratory of Integrative Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), CNPq, São Paulo, Brazil
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Luise Poustka
- Department of Child and Adolescent Psychiatry, University Medical Center Goettingen, Göttingen, Germany
| | - Perminder S Sachdev
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
- Neuropsychiatric Institute, The Prince of Wales Hospital, Sydney, NSW, Australia
| | - Giovanni A Salum
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), CNPq, São Paulo, Brazil
- Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Section on Negative Affect and Social Processes, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Peter R Schofield
- Neuroscience Research Australia, Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Gunter Schumann
- Center for Population Neuroscience and Precision Medicine (PONS), Institute for Science and Technology for Brain-inspired Intelligence (ISTBI), Fudan University, Shanghai, China
- PONS Centre, Department of Psychiatry and Clinical Neuroscience, CCM, Charite University Medicine, Berlin, Germany
| | - Philip Shaw
- Social and Behavioral Research Branch, National Human Genome Research Institute, Bethesda, MD, USA
- National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Kang Sim
- West Region, Institute of Mental Health, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Michael N Smolka
- Department of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany
| | - Dan J Stein
- SAMRC Unit on Risk & Resilience in Mental Disorders, Department of Psychiatry & Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Julian N Trollor
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
- Department of Developmental Disability Neuropsychiatry, Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
| | - Leonard H van den Berg
- Department of Neurology, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Jan H Veldink
- Department of Neurology, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Henrik Walter
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute for Health, Berlin, Germany
| | - Lars T Westlye
- NORMENT Centre, University of Oslo, Oslo, Norway
- Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Robert Whelan
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - Tonya White
- Department of Child and Adolescent Psychiatry/Psychology, Sophia Children's Hospital, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Radiology & Nuclear Medicine, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Margaret J Wright
- Queensland Brain Institute, University of Queensland, Brisbane, QLD, Australia
- Centre for Advanced Imaging, University of Queensland, Brisbane, QLD, Australia
| | - Sarah E Medland
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Barbara Franke
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
| | - 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, CA, USA
| | - Hilleke E Hulshoff Pol
- Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands.
- Department of Psychology, Utrecht University, Utrecht, The Netherlands.
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4
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Abstract
Schizophrenia is a severe psychiatric disorder with high heritability. Consortia efforts and technological advancements have led to a substantial increase in knowledge of the genetic architecture of schizophrenia over the past decade. In this article, we provide an overview of the current understanding of the genetics of schizophrenia, outline remaining challenges, and summarise future directions of research. World-wide collaborations have resulted in genome-wide association studies (GWAS) in over 56 000 schizophrenia cases and 78 000 controls, which identified 176 distinct genetic loci. The latest GWAS from the Psychiatric Genetics Consortium, available as a pre-print, indicates that 270 distinct common genetic loci have now been associated with schizophrenia. Polygenic risk scores can currently explain around 7.7% of the variance in schizophrenia case-control status. Rare variant studies have implicated eight rare copy-number variants, and an increased burden of loss-of-function variants in SETD1A, as increasing the risk of schizophrenia. The latest exome sequencing study, available as a pre-print, implicates a burden of rare coding variants in a further nine genes. Gene-set analyses have demonstrated significant enrichment of both common and rare genetic variants associated with schizophrenia in synaptic pathways. To address current challenges, future genetic studies of schizophrenia need increased sample sizes from more diverse populations. Continued expansion of international collaboration will likely identify new genetic regions, improve fine-mapping to identify causal variants, and increase our understanding of the biology and mechanisms of schizophrenia.
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Affiliation(s)
- Sophie E Legge
- Division of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Marcos L Santoro
- Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Sathish Periyasamy
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
- Queensland Centre for Mental Health Research, The University of Queensland, Brisbane, QLD, Australia
| | | | - Arsalan Arsalan
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Kaarina Kowalec
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- College of Pharmacy, University of Manitoba, Winnipeg, Canada
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5
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Atkinson EG, Maihofer AX, Kanai M, Martin AR, Karczewski KJ, Santoro ML, Ulirsch JC, Kamatani Y, Okada Y, Finucane HK, Koenen KC, Nievergelt CM, Daly MJ, Neale BM. Tractor uses local ancestry to enable the inclusion of admixed individuals in GWAS and to boost power. Nat Genet 2021; 53:195-204. [PMID: 33462486 PMCID: PMC7867648 DOI: 10.1038/s41588-020-00766-y] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 12/15/2020] [Indexed: 12/26/2022]
Abstract
Admixed populations are routinely excluded from genomic studies due to concerns over population structure. Here, we present a statistical framework and software package, Tractor, to facilitate the inclusion of admixed individuals in association studies by leveraging local ancestry. We test Tractor with simulated and empirical two-way admixed African-European cohorts. Tractor generates accurate ancestry-specific effect-size estimates and P values, can boost genome-wide association study (GWAS) power and improves the resolution of association signals. Using a local ancestry-aware regression model, we replicate known hits for blood lipids, discover novel hits missed by standard GWAS and localize signals closer to putative causal variants.
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Affiliation(s)
- Elizabeth G Atkinson
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | - Adam X Maihofer
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Masahiro Kanai
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Bioinformatics and Integrative Genomics, Harvard Medical School, Boston, MA, USA
- Department of Statistical Genetics, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Alicia R Martin
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Konrad J Karczewski
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Marcos L Santoro
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Jacob C Ulirsch
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA, USA
| | - Yoichiro Kamatani
- Laboratory of Complex Trait Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Yukinori Okada
- Department of Statistical Genetics, Graduate School of Medicine, Osaka University, Suita, Japan
- Laboratory of Statistical Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Suita, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan
| | - Hilary K Finucane
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Karestan C Koenen
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Mark J Daly
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - Benjamin M Neale
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
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6
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Ravagnani Salto AB, Santoro ML, Hoexter MQ, Jackowski AP, Pan PM, Rosário MC, Belangero SI, Alvarenga PG, Doretto VF, Fumo AMT, Batistuzzo MC, Macul Ferreira de Barros P, Timpano KR, Ota VK, Rohde LA, Miguel EC, Leckman JF, Zugman A. Obsessive-Compulsive Symptoms, Polygenic Risk Score, and Thalamic Development in Children From the Brazilian High-Risk Cohort for Mental Conditions (BHRCS). Front Psychiatry 2021; 12:673595. [PMID: 34163385 PMCID: PMC8215160 DOI: 10.3389/fpsyt.2021.673595] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 05/11/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Thalamic volume measures have been linked to obsessive-compulsive disorder (OCD) in children and adolescents. However, it is unclear if alterations in thalamic volumes occur before or after symptom onset and if there is a relation to the presence of sub-clinical obsessive-compulsive symptoms (OCS). Here, we explore the relationship between OCS and the rate of thalamic volume change in a cohort of children and youth at high risk to develop a mental disorder. A secondary aim was to determine if there is a relationship between OCS and the individual's OCD polygenic risk score (OCD-PRS) and between the rate of thalamic volume change and the OCD-PRS. Methods: The sample included 378 children enrolled in the longitudinal Brazilian High-Risk Cohort for Mental Conditions. Participants were assessed for OCS and the symmetrized percent change (SPC) of thalamic volume across two time-points separated by 3 years, along with the OCD-PRS. Zero-altered negative binomial models were used to analyze the relationship between OCS and thalamic SPC. Multiple linear regressions were used to examine the relationship between thalamic SPC and OCD-PRS. Results: A significant relationship between OCS and the right thalamus SPC (p = 0.042) was found. There was no significant relationship between changes in thalamic volume SPC and OCD-PRS. Conclusions: The findings suggest that changes in the right thalamic volume over the course of 3 years in children may be associated to OCS. Future studies are needed to confirm these results and further characterize the specific nature of OCS symptoms associated with thalamic volumes.
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Affiliation(s)
| | - Marcos L Santoro
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Marcelo Q Hoexter
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Andrea Parolin Jackowski
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Pedro M Pan
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Maria Conceição Rosário
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sintia I Belangero
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil.,Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Pedro Gomes Alvarenga
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Victoria Fogaça Doretto
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Afonso Mazine Tiago Fumo
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Marcelo C Batistuzzo
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.,Department of Methods and Techniques in Psychology, Pontifical Catholic University, São Paulo, Brazil
| | | | - Kiara R Timpano
- Department of Psychology, University of Miami, Coral Gables, FL, United States
| | - Vanessa K Ota
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Luis Augusto Rohde
- Attention-Deficit/Hyperactivity Disorder and Developmental Psychiatry Programs, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | | | - James F Leckman
- Yale Child Study Centre, Yale School of Medicine, Yale University, New Haven, CT, United States
| | - André Zugman
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
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7
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Fonseca L, Sena BF, Crossley N, Lopez-Jaramillo C, Koenen K, Freimer NB, Bressan RA, Belangero SI, Santoro ML, Gadelha A. Diversity matters: opportunities in the study of the genetics of psychotic disorders in low- and middle-income countries in Latin America. ACTA ACUST UNITED AC 2020; 43:631-637. [PMID: 33237255 PMCID: PMC8639010 DOI: 10.1590/1516-4446-2020-1240] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/22/2020] [Indexed: 01/15/2023]
Abstract
Lack of diversity regarding genetic and environmental backgrounds weakens the generalization and clinical applicability of research findings on psychotic disorders. Notably, Latin Americans have been generally neglected in genetic studies, comprising less than 2% of genome-wide association study samples. But Latin American populations represent a unique opportunity for research, given the exceptionally high ethnic admixture of this group. Increasing genetic diversity is essential to improve the fine mapping of known regions associated with psychotic disorders, discover novel genetic associations, and replicate studies. Additionally, Latin America is characterized by massive social, political, and economic inequalities, all known risk factors for mental health issues, including psychotic disorders. This article aims to 1) discuss the challenges and advantages of studying Latin America’s particular genetic makeup and environmental context; 2) review previous studies conducted in the region; and 3) describe three Latin American research initiatives in progress: the Neuropsychiatric Genetics of Psychosis in Mexican Populations (NeuroMEX), the Paisa, and the Latin American Network for the Study of Early Psychosis (ANDES) studies.
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Affiliation(s)
- Lais Fonseca
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.,Programa de Esquizofrenia (PROESQ), Departamento de Psiquiatria, UNIFESP, São Paulo, SP, Brazil
| | - Brena F Sena
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Stanley Center for Psychiatric Research, Broad Institute, Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, USA
| | - Nicolas Crossley
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Carlos Lopez-Jaramillo
- Research Group in Psychiatry, Department of Psychiatry, School of Medicine, Universidad de Antioquia, Medellin, Colombia.,Mood Disorders Program, Hospital San Vicente Fundación, Medellin, Colombia
| | - Karestan Koenen
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Stanley Center for Psychiatric Research, Broad Institute, Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, USA
| | - Nelson B Freimer
- Department of Psychiatry and Biobehavioral Sciences, University of California (UCLA), Los Angeles, CA, USA.,Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA.,Department of Human Genetics, UCLA, Los Angeles, CA, USA
| | - Rodrigo A Bressan
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.,Programa de Esquizofrenia (PROESQ), Departamento de Psiquiatria, UNIFESP, São Paulo, SP, Brazil
| | - Sintia I Belangero
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.,Disciplina de Genética, Departamento de Morfologia e Genética, UNIFESP, São Paulo, SP, Brazil
| | - Marcos L Santoro
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.,Disciplina de Genética, Departamento de Morfologia e Genética, UNIFESP, São Paulo, SP, Brazil
| | - Ary Gadelha
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.,Programa de Esquizofrenia (PROESQ), Departamento de Psiquiatria, UNIFESP, São Paulo, SP, Brazil
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8
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Xavier G, Santoro ML, Ota VK, Spindola LM, Oliveira G, Vieira T, Micali D, de Jong S, Noto C, Gadelha A, Cordeiro Q, Bressan RA, Breen G, Belangero SI. Blood gene expression changes after Risperidone treatment in an antipsychotic-naïve cohort of first episode of psychosis patients. Schizophr Res 2020; 220:285-286. [PMID: 32247745 DOI: 10.1016/j.schres.2020.03.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/11/2020] [Accepted: 03/18/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Gabriela Xavier
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Genetics Division of Department of Morphology and Genetics, UNIFESP, Brazil
| | - Marcos L Santoro
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Genetics Division of Department of Morphology and Genetics, UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Vanessa K Ota
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Genetics Division of Department of Morphology and Genetics, UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Leticia M Spindola
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Giovany Oliveira
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Genetics Division of Department of Morphology and Genetics, UNIFESP, Brazil
| | - Tamiris Vieira
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Genetics Division of Department of Morphology and Genetics, UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Danilo Micali
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Genetics Division of Department of Morphology and Genetics, UNIFESP, Brazil
| | - Simone de Jong
- King's College London, Social, Genetic and Developmental Psychiatry Centre, London, UK; Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | | | - Ary Gadelha
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Quirino Cordeiro
- Department of Psychiatry, Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil
| | - Rodrigo A Bressan
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Gerome Breen
- King's College London, Social, Genetic and Developmental Psychiatry Centre, London, UK; Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Sintia I Belangero
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, Brazil; Genetics Division of Department of Morphology and Genetics, UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil.
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9
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Spindola LM, Santoro ML, Pan PM, Ota VK, Xavier G, Carvalho CM, Talarico F, Sleiman P, March M, Pellegrino R, Brietzke E, Grassi-Oliveira R, Mari JJ, Gadelha A, Miguel EC, Rohde LA, Bressan RA, Mazzotti DR, Sato JR, Salum GA, Hakonarson H, Belangero SI. Detecting multiple differentially methylated CpG sites and regions related to dimensional psychopathology in youths. Clin Epigenetics 2019; 11:146. [PMID: 31639064 PMCID: PMC6805541 DOI: 10.1186/s13148-019-0740-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 01/15/2019] [Accepted: 09/08/2019] [Indexed: 02/07/2023] Open
Abstract
Background Psychiatric symptomatology during late childhood and early adolescence tends to persist later in life. In the present longitudinal study, we aimed to identify changes in genome-wide DNA methylation patterns that were associated with the emergence of psychopathology in youths from the Brazilian High-Risk Cohort (HRC) for psychiatric disorders. Moreover, for the differentially methylated genes, we verified whether differences in DNA methylation corresponded to differences in mRNA transcript levels by analyzing the gene expression levels in the blood and by correlating the variation of DNA methylation values with the variation of mRNA levels of the same individuals. Finally, we examined whether the variations in DNA methylation and mRNA levels were correlated with psychopathology measurements over time. Methods We selected 24 youths from the HRC who presented with an increase in dimensional psychopathology at a 3-year follow-up as measured by the Child Behavior Checklist (CBCL). The DNA methylation and gene expression data were compared in peripheral blood samples (n = 48) obtained from the 24 youths before and after developing psychopathology. We implemented a methodological framework to reduce the effect of chronological age on DNA methylation using an independent population of 140 youths and the effect of puberty using data from the literature. Results We identified 663 differentially methylated positions (DMPs) and 90 differentially methylated regions (DMRs) associated with the emergence of psychopathology. We observed that 15 DMPs were mapped to genes that were differentially expressed in the blood; among these, we found a correlation between the DNA methylation and mRNA levels of RB1CC1 and a correlation between the CBCL and mRNA levels of KMT2E. Of the DMRs, three genes were differentially expressed: ASCL2, which is involved in neurogenesis; HLA-E, which is mapped to the MHC loci; and RPS6KB1, the gene expression of which was correlated with an increase in the CBCL between the time points. Conclusions We observed that changes in DNA methylation and, consequently, in gene expression in the peripheral blood occurred concurrently with the emergence of dimensional psychopathology in youths. Therefore, epigenomic modulations might be involved in the regulation of an individual’s development of psychopathology.
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Affiliation(s)
- Leticia M Spindola
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Rua Botucatu 740, Ed. Leitão da Cunha, Vila Clementino, Sao Paulo, SP, Brazil.,LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil.,Department of Psychiatry, UNIFESP, São Paulo, Brazil
| | - Marcos L Santoro
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Rua Botucatu 740, Ed. Leitão da Cunha, Vila Clementino, Sao Paulo, SP, Brazil.,LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil.,Department of Psychiatry, UNIFESP, São Paulo, Brazil
| | - Pedro M Pan
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil.,Department of Psychiatry, UNIFESP, São Paulo, Brazil
| | - Vanessa K Ota
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Rua Botucatu 740, Ed. Leitão da Cunha, Vila Clementino, Sao Paulo, SP, Brazil.,LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil
| | - Gabriela Xavier
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Rua Botucatu 740, Ed. Leitão da Cunha, Vila Clementino, Sao Paulo, SP, Brazil.,LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil
| | - Carolina M Carvalho
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Rua Botucatu 740, Ed. Leitão da Cunha, Vila Clementino, Sao Paulo, SP, Brazil.,LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil.,Department of Psychiatry, UNIFESP, São Paulo, Brazil
| | - Fernanda Talarico
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Rua Botucatu 740, Ed. Leitão da Cunha, Vila Clementino, Sao Paulo, SP, Brazil.,LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil
| | - Patrick Sleiman
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, USA
| | - Michael March
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, USA
| | - Renata Pellegrino
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, USA
| | | | - Rodrigo Grassi-Oliveira
- Brain Institute, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Jair J Mari
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil.,Department of Psychiatry, UNIFESP, São Paulo, Brazil
| | - Ary Gadelha
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil.,Department of Psychiatry, UNIFESP, São Paulo, Brazil
| | - Euripedes C Miguel
- Department of Psychiatry, Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
| | - Luis A Rohde
- Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Rodrigo A Bressan
- LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil.,Department of Psychiatry, UNIFESP, São Paulo, Brazil
| | - Diego R Mazzotti
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia, USA
| | - João R Sato
- Center of Mathematics, Computing and Cognition, Universidade Federal do ABC, Santo André, Brazil
| | - Giovanni A Salum
- Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Hakon Hakonarson
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, USA
| | - Sintia I Belangero
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Rua Botucatu 740, Ed. Leitão da Cunha, Vila Clementino, Sao Paulo, SP, Brazil. .,LiNC - Laboratory of Integrative Neuroscience, UNIFESP, São Paulo, Brazil. .,Department of Psychiatry, UNIFESP, São Paulo, Brazil.
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10
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Tempaku PF, Santoro ML, Bittencourt L, D'Almeida V, Belangero SI, Tufik S. 0024 Genome-wide Association Study Reveals Two Novel Risk Alleles For Incident Obstructive Sleep Apnea In The Episono Cohort. Sleep 2019. [DOI: 10.1093/sleep/zsz067.023] [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: 11/12/2022] Open
Affiliation(s)
| | | | - Lia Bittencourt
- Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Vania D'Almeida
- Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Sergio Tufik
- Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
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11
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Carvalho CM, Pan PM, Ota VK, Spindola LM, Xavier G, Santoro ML, Mazzotti DR, Pellegrino R, Hakonarson H, Rohde LA, Miguel EC, Gadelha A, Bressan RA, Belangero SI. Effects of the interaction between genetic factors and maltreatment on child and adolescent psychiatric disorders. Psychiatry Res 2019; 273:575-577. [PMID: 30716596 DOI: 10.1016/j.psychres.2019.01.078] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/04/2019] [Accepted: 01/19/2019] [Indexed: 11/25/2022]
Abstract
We evaluated the effects of the interaction between child maltreatment (CM) and single nucleotide polymorphisms (SNPs) on development of mental disorders (MD) and psychopathology. We genotyped 720 individuals from a Brazilian community school-based prospective study, focusing on SNPs in 21 genes known to be associated with mental disorders. CM was assessed via a multi-informant-measure, which was previously validated. To test G × CM, we used linear or logistic models depending on variable evaluated (MD or dimensional psychopathology). After Bonferroni multiple comparison correction, we did not find any statistically significant association of G × CM with either MD or psychopathology.
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Affiliation(s)
- Carolina Muniz Carvalho
- Genetics Division of the Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Brazil; Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Pedro M Pan
- Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Vanessa K Ota
- Genetics Division of the Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Brazil; Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil
| | - Letícia M Spindola
- Genetics Division of the Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Brazil; Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Gabriela Xavier
- Genetics Division of the Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Brazil; Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil
| | - Marcos L Santoro
- Genetics Division of the Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Brazil; Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Diego R Mazzotti
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia, USA
| | - Renata Pellegrino
- Laboratory Center for Applied Genomics of Children's Hospital of Philadelphia, Philadelphia, USA
| | - Hakon Hakonarson
- Laboratory Center for Applied Genomics of Children's Hospital of Philadelphia, Philadelphia, USA
| | - Luis Augusto Rohde
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
| | | | - Ary Gadelha
- Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Rodrigo A Bressan
- Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Sintia I Belangero
- Genetics Division of the Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Brazil; Interdisciplinary Laboratory of Clinical Neurosciences (LiNC), UNIFESP, Brazil; Department of Psychiatry, UNIFESP, Brazil.
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12
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Abstract
CONTEXT Bothrops snakes are the most frequent agents of snakebites in South and Central America. Acute kidney injury (AKI) is one of its complications and has multifactorial origin. Thrombotic microangiopathy (TMA)-induced AKI in snakebites is uncommon and is not described in Bothrops envenomation. CASE DETAILS We report two cases of patients bitten by young Bothrops jararaca who developed AKI induced by TMA. Both patients evolved with mild envenomation and received the specific antivenom within 4 h after the snakebite. None of them had hypotension or shock, bleeding or secondary infection. Patient 1 (P1) was diabetic and using oral hypoglycemic drugs, and patient 2 (P2) was hypertensive without regular use of medication. On admission, both patients had levels of fibrinogen lower than 35 mg/dL, D-dimer higher than 10,000 ng/mL. They evolved with AKI, thrombocytopenia, normal coagulation assays, anemia, lactate dehydrogenase (LDH) elevation, low haptoglobin levels, negative direct antiglobulin test, and presence of schizocytes in peripheral blood. Only P1 required renal replacement therapy, and plasmapheresis was not required. Both patients were discharged and did not require outpatient dialysis, and subsequently had normal creatinine levels. DISCUSSION TMA may occur in Bothrops jararaca envenomation, even in mild cases that received early specific antivenom.
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Affiliation(s)
- C M S Malaque
- a Emilio Ribas Institute of Infectious Diseases , São Paulo , Brazil.,b Vital Brazil Hospital , Butantan Institute , São Paulo , Brazil
| | - I F Duayer
- a Emilio Ribas Institute of Infectious Diseases , São Paulo , Brazil
| | - M L Santoro
- c Laboratory of Pathophysiology , Butantan Institute , São Paulo , Brazil
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13
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de Jong S, Diniz MJA, Saloma A, Gadelha A, Santoro ML, Ota VK, Noto C, Curtis C, Newhouse SJ, Patel H, Hall LS, O Reilly PF, Belangero SI, Bressan RA, Breen G. Applying polygenic risk scoring for psychiatric disorders to a large family with bipolar disorder and major depressive disorder. Commun Biol 2018; 1:163. [PMID: 30320231 PMCID: PMC6175827 DOI: 10.1038/s42003-018-0155-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 08/06/2018] [Indexed: 01/03/2023] Open
Abstract
Psychiatric disorders are thought to have a complex genetic pathology consisting of interplay of common and rare variation. Traditionally, pedigrees are used to shed light on the latter only, while here we discuss the application of polygenic risk scores to also highlight patterns of common genetic risk. We analyze polygenic risk scores for psychiatric disorders in a large pedigree (n ~ 260) in which 30% of family members suffer from major depressive disorder or bipolar disorder. Studying patterns of assortative mating and anticipation, it appears increased polygenic risk is contributed by affected individuals who married into the family, resulting in an increasing genetic risk over generations. This may explain the observation of anticipation in mood disorders, whereby onset is earlier and the severity increases over the generations of a family. Joint analyses of rare and common variation may be a powerful way to understand the familial genetics of psychiatric disorders.
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Grants
- U01 MH109536 NIMH NIH HHS
- R01 MH085548 NIMH NIH HHS
- Wellcome Trust
- G0401207 Medical Research Council
- G0200243 Medical Research Council
- MR/K006584/1 Medical Research Council
- SJN is also supported by the National Institute for Health Research (NIHR) University College London Hospitals Biomedical Research Centre, and by awards establishing the Farr Institute of Health Informatics Research at UCLPartners, from the Medical Research Council, Arthritis Research UK, British Heart Foundation, Cancer Research UK, Chief Scientist Office, Economic and Social Research Council, Engineering and Physical Sciences Research Council, National Institute for Health Research, National Institute for Social Care and Health Research, and Wellcome Trust (grant MR/K006584/1).
- This paper represents independent research part-funded by FAPESP (2014/50830-2; 2010/08968-6), the Marie Curie International Research Staff Exchange (FP7-PEOPLE-2011-IRSES/295192), and the National Institute for Health Research (NIHR) Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King’s College London. SDJ is funded by the European Union’s Horizon 2020 research and innovation programme under Marie Skłodowska-Curie grant IF 658195.
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Affiliation(s)
- Simone de Jong
- MRC Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
- National Institute of Health Research Biomedical Research Centre for Mental Health, Maudsley Hospital and Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
| | - Mateus Jose Abdalla Diniz
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
- Pax Instituto de Psiquiatria, BR153, km 505, Villa Sul V, Aparecida de Goiânia, 74911-516, Brazil
| | - Andiara Saloma
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
- Pax Instituto de Psiquiatria, BR153, km 505, Villa Sul V, Aparecida de Goiânia, 74911-516, Brazil
| | - Ary Gadelha
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
| | - Marcos L Santoro
- Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
| | - Vanessa K Ota
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
- Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
| | - Cristiano Noto
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
| | - Charles Curtis
- MRC Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
- National Institute of Health Research Biomedical Research Centre for Mental Health, Maudsley Hospital and Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
| | - Stephen J Newhouse
- National Institute of Health Research Biomedical Research Centre for Mental Health, Maudsley Hospital and Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
- Farr Institute of Health Informatics Research, UCL Institute of Health Informatics, University College London, London, NW1 2DA, UK
| | - Hamel Patel
- National Institute of Health Research Biomedical Research Centre for Mental Health, Maudsley Hospital and Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
| | - Lynsey S Hall
- Division of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, CF10 3AT, UK
| | - Paul F O Reilly
- MRC Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
| | - Sintia I Belangero
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
- Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
| | - Rodrigo A Bressan
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, 04021-001, Brazil
| | - Gerome Breen
- MRC Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry Psychology and Neuroscience, King's College London, London, SE5 8AF, UK.
- National Institute of Health Research Biomedical Research Centre for Mental Health, Maudsley Hospital and Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK.
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Maruyama M, Kamiguti AS, Cardoso JLC, Sano-Martins IS, Chudzinski AM, Santoro ML, Morena P, Tomy SC, Antonia LC, Mihara H, Kelen EMA. Studies on Blood Coagulation and Fibrinolysis in Patients Bitten by Bothrops jararaca (jararaca). Thromb Haemost 2018. [DOI: 10.1055/s-0038-1645064] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryThe blood coagulation and the fibrinolytic systems of nine patients envenomed by Bothrops jararaca in São Paulo (Brazil) were studied. Five of the accidents were caused by young snakes (<50 cm). On admission, four patients had non-clotting and three partially-clotting blood. Fibrinogen levels were decreased due to the thrombin-like activity of the venom as expected. Consequent secondary activation of the fibrinolytic system was evident from the low levels of alpha-2-antiplasmin and the high titres of fibrin(ogen) degradation products. High titres of cross-linked fibrin fragment D (D-dimer) in seven patients together with decreased platelet counts and/or factor V, and/or factor VIII in some, suggests intrinsic thrombin formation as these factors are not consumed in the defibrinogenation induced by venom thrombin-like fractions such as Ancrod and Batroxobin. However, normal or increased levels of antithrombin III in all and normal levels of factor II in eight patients do not support this interpretation. The existence of variable concentrations of other proteins in the venom of B. jararaca such as botrocetin and thrombocytin isolated from B. jararaca and B. atrox or crotalocytin from Crotaliis horridus venom should be considered. Such proteins are known to activate factors V, VIII, XIII, and platelets without affecting prothrombin (factor II) and antithrombin III. Slower recovery of the haemostatic disturbances after antivenom administration to patients bitten by young snakes suggests a more severe coagulopathy in such accidents. This is supported by clinical observations.
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Affiliation(s)
- M Maruyama
- The Department of Physiology, Miyazaki Medical College, Japan
| | - Aura S Kamiguti
- The Laboratories of Hematology, Instituto Butantan, São Paulo, Brazil
| | - J L C Cardoso
- The Hospital Vital Brazil, Instituto Butantan, São Paulo, Brazil
| | | | - Ana M Chudzinski
- The Experimental Pathophysiology, Instituto Butantan, São Paulo, Brazil
| | - M L Santoro
- The Laboratories of Hematology, Instituto Butantan, São Paulo, Brazil
| | - P Morena
- The Laboratories of Hematology, Instituto Butantan, São Paulo, Brazil
| | - Sandra C Tomy
- The Laboratories of Hematology, Instituto Butantan, São Paulo, Brazil
| | - Luci C Antonia
- The Laboratories of Hematology, Instituto Butantan, São Paulo, Brazil
| | - H Mihara
- The Department of Physiology, Miyazaki Medical College, Japan
| | - Eva M A Kelen
- The Experimental Pathophysiology, Instituto Butantan, São Paulo, Brazil
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15
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Axelrud LK, Santoro ML, Pine DS, Talarico F, Gadelha A, Manfro GG, Pan PM, Jackowski A, Picon F, Brietzke E, Grassi-Oliveira R, Bressan RA, Miguel EC, Rohde LA, Hakonarson H, Pausova Z, Belangero S, Paus T, Salum GA. Polygenic Risk Score for Alzheimer's Disease: Implications for Memory Performance and Hippocampal Volumes in Early Life. Am J Psychiatry 2018; 175:555-563. [PMID: 29495896 PMCID: PMC6372950 DOI: 10.1176/appi.ajp.2017.17050529] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [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
OBJECTIVE Alzheimer's disease is a heritable neurodegenerative disorder in which early-life precursors may manifest in cognition and brain structure. The authors evaluate this possibility by examining, in youths, associations among polygenic risk score for Alzheimer's disease, cognitive abilities, and hippocampal volume. METHOD Participants were children 6-14 years of age in two Brazilian cities, constituting the discovery (N=364) and replication samples (N=352). As an additional replication, data from a Canadian sample (N=1,029), with distinct tasks, MRI protocol, and genetic risk, were included. Cognitive tests quantified memory and executive function. Reading and writing abilities were assessed by standardized tests. Hippocampal volumes were derived from the Multiple Automatically Generated Templates (MAGeT) multi-atlas segmentation brain algorithm. Genetic risk for Alzheimer's disease was quantified using summary statistics from the International Genomics of Alzheimer's Project. RESULTS Analyses showed that for the Brazilian discovery sample, each one-unit increase in z-score for Alzheimer's polygenic risk score significantly predicted a 0.185 decrement in z-score for immediate recall and a 0.282 decrement for delayed recall. Findings were similar for the Brazilian replication sample (immediate and delayed recall, β=-0.259 and β=-0.232, both significant). Quantile regressions showed lower hippocampal volumes bilaterally for individuals with high polygenic risk scores. Associations fell short of significance for the Canadian sample. CONCLUSIONS Genetic risk for Alzheimer's disease may affect early-life cognition and hippocampal volumes, as shown in two independent samples. These data support previous evidence that some forms of late-life dementia may represent developmental conditions with roots in childhood. This result may vary depending on a sample's genetic risk and may be specific to some types of memory tasks.
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Affiliation(s)
- Luiza K. Axelrud
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Marcos L. Santoro
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Daniel S. Pine
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Fernanda Talarico
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Ary Gadelha
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Gisele G. Manfro
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Pedro M. Pan
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Andrea Jackowski
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Felipe Picon
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Elisa Brietzke
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Rodrigo Grassi-Oliveira
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Rodrigo A. Bressan
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Eurípedes C. Miguel
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Luis A. Rohde
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Hakon Hakonarson
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Zdenka Pausova
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Sintia Belangero
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Tomas Paus
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
| | - Giovanni A. Salum
- From the Department of Psychiatry and Legal Medicine, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Section on Negative Affect and Social Processes, Porto Alegre, Brazil; the National Institute of Developmental Psychiatry, São Paulo, Brazil; the Department of Morphology and Genetics and the Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; the Emotion and Development Branch, NIMH, Bethesda, Md.; the Graduate Program in Pediatric and Child
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16
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Maurya PK, Rizzo LB, Xavier G, Tempaku PF, Ota VK, Santoro ML, Spíndola LM, Moretti PS, Mazzotti DR, Gadelha A, Gouvea ES, Noto C, Maes M, Cordeiro Q, Bressan RA, Brietzke E, Belangero SI. Leukocyte telomere length variation in different stages of schizophrenia. J Psychiatr Res 2018; 96:218-223. [PMID: 29102816 DOI: 10.1016/j.jpsychires.2017.10.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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: 02/23/2017] [Revised: 10/14/2017] [Accepted: 10/18/2017] [Indexed: 01/06/2023]
Abstract
Recent research has demonstrated that telomere maintenance might be a key integrating point for the cumulative effect of genetic and environmental factors in patients with first-episode psychosis (FEP) and schizophrenia (SCZ). Eighty-one participants with antipsychotic-naïve FEP, 173 with SCZ and 438 HC were enrolled in this study. Psychiatric diagnosis was assessed using the Semi-Structured Clinical Interview for DSM-IV Axis-I (SCID-I). The Positive and Negative Syndrome Scale (PANSS), Young Mania Rating Scale (YMRS) and Calgary Depression Scale for Schizophrenia (CDSS) were used to measure symptoms severity. Telomere length (TL) was determined using a multiplex qPCR assay. After adjustment for age, years of education, and smoking status, we found that patients with SCZ had longer TL (relative ratio (RR) = 1.08) than the HC group (RR = 1.00, Wald χ2 = 12.48, p = 0.002). Further, non-remitted SCZ patients presented longer TL (RR = 1.00) compared to remitted SCZ (RR = 0.88, Wald χ2 = 7.20, p = 0.007). TL in patients also correlated to psychopathology assessment in terms of total (p = 0.003) and positive PANSS scores (p = 0.001). No correlation with negative PANSS, YMRS, and CDSS or effects of medication was found on TL. Although the exact pathways underlying longer TL in SCZ patients remain unclear, these findings raise more questions than answers and suggest that TL may be of immense value on SCZ progression. Further studies are required to investigate the association of TL in FEP and SCZ.
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Affiliation(s)
- Pawan Kumar Maurya
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Lucas Bortolotto Rizzo
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Research Group on Behavioural and Molecular Neuroscience of Bipolar Disorder, São Paulo, Brazil
| | - Gabriela Xavier
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departament of Morphology and Genetics, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Priscila Farias Tempaku
- Departament of Psychobiology, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Vanessa Kiyomi Ota
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departament of Morphology and Genetics, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Marcos L Santoro
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departament of Morphology and Genetics, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Letícia M Spíndola
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departament of Morphology and Genetics, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Patrícia S Moretti
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil; Departament of Morphology and Genetics, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Diego R Mazzotti
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, United States
| | - Ary Gadelha
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Eduardo S Gouvea
- Department of Psychiatry, Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Cristiano Noto
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Michael Maes
- Graduation Program in Health Sciences, Universidade Estadual de Londrina, Londrina, PR, Brazil; Department of Psychiatry, Chulalongkorn University, Bangkok, Thailand
| | - Quirino Cordeiro
- Department of Psychiatry, Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Rodrigo A Bressan
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Elisa Brietzke
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Research Group on Behavioural and Molecular Neuroscience of Bipolar Disorder, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Sintia Iole Belangero
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departament of Morphology and Genetics, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil.
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17
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Maurya PK, Rizzo LB, Xavier G, Tempaku PF, Zeni-Graiff M, Santoro ML, Mazzotti DR, Zugman A, Pan P, Noto C, Maes M, Asevedo E, Mansur RB, Cunha GR, Gadelha A, Bressan RA, Belangero SI, Brietzke E. Shorter leukocyte telomere length in patients at ultra high risk for psychosis. Eur Neuropsychopharmacol 2017; 27:538-542. [PMID: 28274506 DOI: 10.1016/j.euroneuro.2017.02.008] [Citation(s) in RCA: 20] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 02/07/2017] [Accepted: 02/21/2017] [Indexed: 02/07/2023]
Abstract
Telomere length attrition has been demonstrated in schizophrenia but not in individuals in ultra high risk (UHR) for psychosis. The present study aimed to compare the leukocyte telomere length (TL) between patients at UHR for psychosis and healthy controls (HC). Twenty-two participants with UHR and 88 HC were enrolled in this study. Telomere lengths were determined using a multiplex qPCR assay. After adjustment for age, sex, ethnicity, and education, patients in UHR, compared with HC groups, had shorter telomere length (RR: 0.929, p=0.031). Shorter leukocyte telomere length in UHR could represent early signs of accelerated aging in this population.
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Affiliation(s)
- Pawan Kumar Maurya
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Lucas Bortolotto Rizzo
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Research Group on Behavioral and Molecular Neuroscience of Bipolar Disorder, São Paulo, Brazil; Department of Psychiatry, University of Tübingen, Tübingen, Germany
| | - Gabriela Xavier
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departamento de Morfologia e Genética, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Priscila Farias Tempaku
- Departamento de Psicobiologia, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Maiara Zeni-Graiff
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Department of Psychiatry, University of Tübingen, Tübingen, Germany; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Marcos L Santoro
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departamento de Morfologia e Genética, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Diego Robles Mazzotti
- Departamento de Psicobiologia, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - André Zugman
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Pedro Pan
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Cristiano Noto
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil
| | - Michael Maes
- Graduation Program in Health Sciences, Universidade Estadual de Londrina, Londrina, PR, Brazil; Department of Psychiatry, Chulalongkorn University, Bangkok, Thailand
| | - Elson Asevedo
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Rodrigo B Mansur
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil; Mood Disorders Psychopharmacology Unit (MDPU), University Health Network (UHN), University of Toronto, Toronto, Canada
| | - Graccielle R Cunha
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Ary Gadelha
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Rodrigo A Bressan
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil
| | - Sintia Iole Belangero
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Department of Psychiatry, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil; Departamento de Morfologia e Genética, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - Elisa Brietzke
- Research Group on Behavioral and Molecular Neuroscience of Bipolar Disorder, São Paulo, Brazil; Program for Recognition and Intervention in Individuals in At-Risk Mental States (PRISMA), São Paulo, Brazil.
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Santoro ML, Moretti PN, Pellegrino R, Gadelha A, Abílio VC, Hayashi MAF, Belangero SI, Hakonarson H. A current snapshot of common genomic variants contribution in psychiatric disorders. Am J Med Genet B Neuropsychiatr Genet 2016; 171:997-1005. [PMID: 27486013 DOI: 10.1002/ajmg.b.32475] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 04/15/2016] [Accepted: 07/06/2016] [Indexed: 12/22/2022]
Abstract
In the past decade, numerous advances were achieved in psychiatric genetics. Particularly, the genome wide association studies (GWAS) have contributed to uncovering new genes and pathways associated to psychiatric disorders (PDs). At the same time, with increasing sample sizes in the GWAS, the polygenic risk score (PRS) promoted an additional tool for identification and evaluation the genetic risk quantitatively in PDs. This concept review presents the state of the art GWAS analysis and PRS focusing on the genetic underpinnings of PDs. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Marcos L Santoro
- Interdisciplinary Laboratory of Clinical Neurosciences, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Psychiatry, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Genetics Division, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - Patricia N Moretti
- Interdisciplinary Laboratory of Clinical Neurosciences, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Psychiatry, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Genetics Division, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - Renata Pellegrino
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ary Gadelha
- Interdisciplinary Laboratory of Clinical Neurosciences, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Psychiatry, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - Vanessa C Abílio
- Interdisciplinary Laboratory of Clinical Neurosciences, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Psychiatry, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Pharmacology, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - Mirian A F Hayashi
- Interdisciplinary Laboratory of Clinical Neurosciences, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Psychiatry, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Pharmacology, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - Sintia I Belangero
- Interdisciplinary Laboratory of Clinical Neurosciences, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Department of Psychiatry, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
- Genetics Division, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - Hakon Hakonarson
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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Diana MC, Santoro ML, Xavier G, Santos CM, Spindola LN, Moretti PN, Ota VK, Bressan RA, Abilio VC, Belangero SI. Low expression of Gria1 and Grin1 glutamate receptors in the nucleus accumbens of Spontaneously Hypertensive Rats (SHR). Psychiatry Res 2015; 229:690-4. [PMID: 26296755 DOI: 10.1016/j.psychres.2015.08.021] [Citation(s) in RCA: 7] [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] [Received: 03/26/2015] [Revised: 08/03/2015] [Accepted: 08/12/2015] [Indexed: 10/23/2022]
Abstract
The Spontaneously Hypertensive Rat (SHR) strain is a classical animal model for the study of essential hypertension. Recently, our group suggested that this strain could be a useful animal model for schizophrenia, which is a severe mental illness with involvement of glutamatergic system. The aim of this study is to investigate glutamatergic receptors (Gria1 and Grin1) and glycine transporter (Glyt1) gene expression in the prefrontal cortex (PFC) and nucleus accumbens (NAcc) of SHR animals. The effects in gene expression of a chronic treatment with antipsychotic drugs (risperidone, haloperidol and clozapine) were also analyzed. Animals were treated daily for 30 days, and euthanized for brain tissue collection. The expression pattern was evaluated by Real Time Reverse-Transcriptase (RT) PCR technique. In comparison to control rats, SHR animals present a lower expression of both NMDA (Grin1) and AMPA (Gria1) gene receptors in the NAcc. Antipsychotic treatments were not able to change gene expressions in any of the regions evaluated. These findings provide evidence for the role of glutamatergic changes in schizophrenia-like phenotype of the SHR strain.
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Affiliation(s)
- Mariana C Diana
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil; Department of Pharmacology, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo 669, 5th floor, CEP 04039032, Brazil
| | - Marcos L Santoro
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu, 740, Edifício Leitao da Cunha, 1º andar, CEP 04023-900 São Paulo, Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil
| | - Gabriela Xavier
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu, 740, Edifício Leitao da Cunha, 1º andar, CEP 04023-900 São Paulo, Brazil
| | - Camila Mauricio Santos
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil; Department of Pharmacology, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo 669, 5th floor, CEP 04039032, Brazil
| | - Leticia N Spindola
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu, 740, Edifício Leitao da Cunha, 1º andar, CEP 04023-900 São Paulo, Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil
| | - Patrícia N Moretti
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu, 740, Edifício Leitao da Cunha, 1º andar, CEP 04023-900 São Paulo, Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil
| | - Vanessa K Ota
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu, 740, Edifício Leitao da Cunha, 1º andar, CEP 04023-900 São Paulo, Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil
| | - Rodrigo A Bressan
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil
| | - Vanessa C Abilio
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil; Department of Pharmacology, Universidade Federal de Sao Paulo (UNIFESP), Rua Pedro de Toledo 669, 5th floor, CEP 04039032, Brazil
| | - Sintia I Belangero
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu, 740, Edifício Leitao da Cunha, 1º andar, CEP 04023-900 São Paulo, Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, Department of Psychiatry, UNIFESP, Rua Pedro de Toledo, 669, 3º floor, CEP 05039-032 São Paulo, Brazil.
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Tavares FL, Peichoto ME, Marcelino JR, Barbaro KC, Cirillo MC, Santoro ML, Sano-Martins IS. Platelet participation in the pathogenesis of dermonecrosis induced by Loxosceles gaucho venom. Hum Exp Toxicol 2015; 35:666-76. [PMID: 26253591 DOI: 10.1177/0960327115597983] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Loxosceles gaucho spider venom induces in vitro platelet activation and marked thrombocytopenia in rabbits. Herein, we investigated the involvement of platelets in the development of the dermonecrosis induced by L. gaucho venom, using thrombocytopenic rabbits as a model. L. gaucho venom evoked a drop in platelet and neutrophil counts 4 h after venom injection. Ecchymotic areas at the site of venom inoculation were noticed as soon as 4 h in thrombocytopenic animals but not in animals with initial normal platelet counts. After 5 days, areas of scars in thrombocytopenic animals were also larger, evidencing the marked development of lesions in the condition of thrombocytopenia. Histologically, local hemorrhage, collagen fiber disorganization, and edema were more severe in thrombocytopenic animals. Leukocyte infiltration, predominantly due to polymorphonuclears, was observed in the presence or not of thrombocytopenia. Thrombus formation was demonstrated by immunohistochemistry at the microvasculature, and it occurred even under marked thrombocytopenia. Taken together, platelets have an important role in minimizing not only the hemorrhagic phenomena but also the inflammatory and wound-healing processes, suggesting that cutaneous loxoscelism may be aggravated under thrombocytopenic conditions.
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Affiliation(s)
- F L Tavares
- Centro Universitário Dinâmica das Cataratas, Foz do Iguaçu, Paraná, Brazil Laboratório de Fisiopatologia, Instituto Butantan, São Paulo, Brazil
| | - M E Peichoto
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) e Instituto Nacional de Medicina Tropical (INMeT), Puerto Iguazú, Misiones, Argentina
| | - J R Marcelino
- Divisão de Desenvolvimento Tecnológico e Produção, Instituto Butantan, São Paulo, Brazil
| | - K C Barbaro
- Laboratório de Imunopatologia, Instituto Butantan, São Paulo, Brazil
| | - M C Cirillo
- Laboratório de Fisiopatologia, Instituto Butantan, São Paulo, Brazil
| | - M L Santoro
- Laboratório de Fisiopatologia, Instituto Butantan, São Paulo, Brazil
| | - I S Sano-Martins
- Laboratório de Fisiopatologia, Instituto Butantan, São Paulo, Brazil
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Ota VK, Bellucco FT, Gadelha A, Santoro ML, Noto C, Christofolini DM, Assunção IB, Yamada KM, Ribeiro-dos-Santos ÂK, Santos S, Mari JJ, Smith MAC, Melaragno MI, Bressan RA, Sato JR, Jackowski AP, Belangero SI. PRODH polymorphisms, cortical volumes and thickness in schizophrenia. PLoS One 2014; 9:e87686. [PMID: 24498354 PMCID: PMC3912045 DOI: 10.1371/journal.pone.0087686] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [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: 05/14/2013] [Accepted: 01/02/2014] [Indexed: 11/28/2022] Open
Abstract
Schizophrenia is a neurodevelopmental disorder with high heritability. Several lines of evidence indicate that the PRODH gene may be related to the disorder. Therefore, our study investigates the effects of 12 polymorphisms of PRODH on schizophrenia and its phenotypes. To further evaluate the roles of the associated variants in the disorder, we have conducted magnetic resonance imaging (MRI) scans to assess cortical volumes and thicknesses. A total of 192 patients were evaluated using the Structured Clinical Interview for DSM-IV (SCID), Positive and Negative Syndrome Scale (PANSS), Calgary Depression Scale, Global Assessment of Functioning (GAF) and Clinical Global Impression (CGI) instruments. The study included 179 controls paired by age and gender. The samples were genotyped using the real-time polymerase chain reaction (PCR), restriction fragment length polymorphism (RFLP)-PCR and Sanger sequencing methods. A sample of 138 patients and 34 healthy controls underwent MRI scans. One polymorphism was associated with schizophrenia (rs2904552), with the G-allele more frequent in patients than in controls. This polymorphism is likely functional, as predicted by PolyPhen and SIFT, but it was not associated with brain morphology in our study. In summary, we report a functional PRODH variant associated with schizophrenia that may have a neurochemical impact, altering brain function, but is not responsible for the cortical reductions found in the disorder.
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Affiliation(s)
- Vanessa K. Ota
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
| | - Fernanda T. Bellucco
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
| | - Ary Gadelha
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- Departamento de Psiquiatria, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | - Marcos L. Santoro
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
| | - Cristiano Noto
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- Departamento de Psiquiatria, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | - Denise M. Christofolini
- Disciplina de Genética e Reproducao Humana, Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina do ABC (FMABC), Santo Andre, Sao Paulo, Brazil
| | - Idaiane B. Assunção
- Departamento de Psiquiatria, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | - Karen M. Yamada
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
| | | | - Sidney Santos
- Laboratório de Genética Humana e Médica, Universidade Federal do Pará (UFPA), Belém, Pará, Brazil
| | - Jair J. Mari
- Departamento de Psiquiatria, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | - Marília A. C. Smith
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
| | - Maria I. Melaragno
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
| | - Rodrigo A. Bressan
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- Departamento de Psiquiatria, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | - João R. Sato
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- Center of Mathematics, Computation and Cognition, Universidade Federal do ABC, Santo Andre, Brazil
| | - Andrea P. Jackowski
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
| | - Sintia I. Belangero
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- LiNC - Laboratório Interdisciplinar de Neurociências Clínicas, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil
- Departamento de Psiquiatria, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil
- * E-mail:
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Ota VK, Berberian AA, Gadelha A, Santoro ML, Ottoni GL, Matsuzaka CT, Mari JJ, Melaragno MI, Lara DR, Smith MAC, Belangero SI, Bressan RA. Polymorphisms in schizophrenia candidate gene UFD1L may contribute to cognitive deficits. Psychiatry Res 2013; 209:110-3. [PMID: 23623450 DOI: 10.1016/j.psychres.2013.03.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 12/16/2012] [Revised: 03/19/2013] [Accepted: 03/30/2013] [Indexed: 01/26/2023]
Abstract
We aimed to investigate UFD1L polymorphisms in schizophrenia and in relation to cognition. A total of 299 cases and 363 controls were genotyped, and 130 patients completed nine neuropsychological tests. We found that rs5992403 AA-genotype carriers showed lower scores on the set-shifting task. Therefore, UFD1L may participate in the core cognitive deficits observed in schizophrenia.
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Affiliation(s)
- Vanessa K Ota
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu 740, Edifício Leitao da Cunha, 1° Andar, CEP 04023-900 Sao Paulo, Brazil.
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Ota VK, Gadelha A, Assunção IB, Santoro ML, Christofolini DM, Bellucco FT, Santos-Filho AF, Ottoni GL, Lara DR, Mari JJ, Melaragno MI, Smith MAC, Bressan RA, Belangero SI, Jackowski AP. ZDHHC8 gene may play a role in cortical volumes of patients with schizophrenia. Schizophr Res 2013; 145:33-5. [PMID: 23403413 DOI: 10.1016/j.schres.2013.01.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [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: 07/04/2012] [Revised: 01/11/2013] [Accepted: 01/14/2013] [Indexed: 02/07/2023]
Abstract
ZDHHC8 rs175174 polymorphism is located in 22q11.2 region and its role in brain volume has not been fully addressed. A total of 282 schizophrenia patients and 379 controls were genotyped. A sample of 138 patients underwent brain MRI scan. No association was found between schizophrenia and genotypes. Nevertheless, GG-genotype carriers presented gray matter volume (GMV) reduction in frontal lobe compared to A-allele carriers, and cerebellar hemispheres GMV reductions were found in G-allele carriers compared to AA-genotype. Moreover, A-allele carriers presented posterior brain GMV reductions when compared to GG-genotype. These data suggest that ZDHHC8 may play a role in cortical volumes.
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Affiliation(s)
- Vanessa K Ota
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de Sao Paulo (UNIFESP), Rua Botucatu, 740, Edifício Leitao da Cunha, 1° andar, CEP 04023-900, Sao Paulo, Brazil.
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Yamashita KM, Nogueira TO, Senise LV, Cirillo MC, Gonçalves LRC, Sano-Martins IS, Giorgi R, Santoro ML. Involvement of circulating platelets on the hyperalgesic response evoked by carrageenan and Bothrops jararaca snake venom. J Thromb Haemost 2011; 9:2057-66. [PMID: 21794075 DOI: 10.1111/j.1538-7836.2011.04449.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND The role of platelets in hemostasis is well known, but few papers have reported their role in pain and edema induced by inflammatory agents. OBJECTIVE To evaluate the role of circulating platelets in the local injury induced by two diverse inflammatory agents, Bothrops jararaca venom (Bjv) and carrageenan. METHODS Rats were (i) rendered thrombocytopenic by administration of polyclonal anti-rat platelet IgG (ARPI) or busulfan, or (ii) treated with platelet inhibitors (aspirin or clopidogrel). Edema formation, local hemorrhage and the pain threshold were assessed after intraplantar injection of Bjv or carrageenan in rat hind paws. Additionally, whole platelets or platelet releasate were tested whether they directly induced hyperalgesia. RESULTS Platelet counts were markedly diminished in rats administered with either ARPI (± 88%) or busulfan (± 96%). Previous treatment with ARPI or busulfan slightly reduced edema induced by Bjv or carrageenan. Injection of Bjv, but not of carrageenan, induced a statistically significance increase in hemorrhage in the hind paws of thrombocytopenic rats. Remarkably, hyperalgesia evoked by Bjv or carrageenan was completely blocked in animals treated with ARPI or busulfan, or pre-treated with aspirin or clopidogrel. On the other hand, intraplantar administration of whole platelets or platelet releasate evoked hyperalgesia, which was inhibited by pre-incubation with alkaline phosphatase. CONCLUSIONS Thrombocytopenia or inhibition of platelet function drastically reduced hyperalgesia induced by injection of carrageenan or Bjv; moreover, platelets per se secrete phosphorylated compounds involved in pain mediation. Thus, blood platelets are crucial cells involved in the pain genesis, and their role therein has been underestimated.
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Affiliation(s)
- K M Yamashita
- Laboratory of Pathophysiology, Institute Butantan, São Paulo, Brazil
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Medeiros CR, Susaki TT, Knysak I, Cardoso JLC, Málaque CMS, Fan HW, Santoro ML, França FOS, Barbaro KC. Epidemiologic and clinical survey of victims of centipede stings admitted to Hospital Vital Brazil (São Paulo, Brazil). Toxicon 2008; 52:606-10. [PMID: 18706923 DOI: 10.1016/j.toxicon.2008.07.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2008] [Revised: 06/27/2008] [Accepted: 07/16/2008] [Indexed: 12/15/2022]
Abstract
We retrospectively analyzed 98 proven cases of centipede stings admitted to Hospital Vital Brazil, Butantan Institute, São Paulo, Brazil, between 1990 and 2007. Most stings occurred at the metropolitan area of São Paulo city (n=94, 95.9%), in the domiciles of patients (n=67, 68.4%), and during the warm-rainy season (n=60, 61.2%). The mean age of the victims was 32.0+/-18.8-years-old. Cryptops and Otostigmus genera were responsible for most cases. Around 86% of the patients sought medical care within 6h after the sting. Both lower (56.1 %) and upper limbs (41.8 %) were most frequently bitten, especially the feet and hands (89.8%). The most frequent local clinical manifestations were pain (94.9%), erythema (44.9%) and edema (21.4%), and the latter was mainly observed in patients bitten by Otostigmus spp. Supportive treatment was used in only 28.6% of the patients, namely administration of local anesthesia (9.2%) and systemic analgesia (13.3%). No sequels or complications were observed in patients, and the prognostic was benign.
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Affiliation(s)
- C R Medeiros
- Hospital Vital Brazil, Butantan Institute, Av. Vital Brasil 1500, 05503-900, São Paulo, SP, Brazil
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Lira MS, Furtado MF, Martins LMP, Lopes-Ferreira M, Santoro ML, Barbaro KC. Enzymatic and immunochemical characterization of Bothrops insularis venom and its neutralization by polyspecific Bothrops antivenom. Toxicon 2007; 49:982-94. [PMID: 17382362 DOI: 10.1016/j.toxicon.2007.01.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2006] [Revised: 01/16/2007] [Accepted: 01/17/2007] [Indexed: 11/24/2022]
Abstract
Herein we compared the biological activities of Bothrops insularis and Bothrops jararaca venoms as well as their neutralization by polyspecific Bothrops antivenom (PBA). On account of that, we investigated their antigenic cross-reactivity and the neutralization of lethal, myotoxic and defibrinating activities by polyspecific and species-specific antivenoms. Silver-stained SDS-PAGE gels evidenced many common bands particularly above 47 kDa between B. jararaca and B. insularis venoms. However, some protein bands between 46 and 28 kDa were observed exclusively in B. jararaca venom. Both venoms presented gelatinolytic, caseinolytic, fibrinogenolytic and phospholipase A(2) activities. No hyaluronidase activity was detected in both venoms by zymography. Polyspecific and species-specific antivenoms showed similar titers to B. jararaca and B. insularis venoms by ELISA, and recognized similar components by immunoblotting. The PBA was effective in neutralizing the lethal, myotoxic and defibrinating activities of both venoms as well as to abrogate microcirculatory disturbances induced by B. insularis venom. No statistically significant difference was observed for minimal hemorrhagic doses between both venoms. Antigenic cross-reactivity was evident between both venoms. Since toxic and enzymatic activities were similar, we speculate that B. insularis venoms can induce a local damage in humans comparable to that observed in other Bothrops venoms. Besides, the PBA was effective in neutralizing the toxic activities of B. insularis venom.
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Affiliation(s)
- M S Lira
- Laboratory of Immunopathology, Butantan Institute, Av Vital Brazil 1500, 05503-900, São Paulo, SP, Brazil
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Peichoto ME, Teibler P, Mackessy SP, Leiva L, Acosta O, Gonçalves LRC, Tanaka-Azevedo AM, Santoro ML. Purification and characterization of patagonfibrase, a metalloproteinase showing α-fibrinogenolytic and hemorrhagic activities, from Philodryas patagoniensis snake venom. Biochim Biophys Acta Gen Subj 2007; 1770:810-9. [PMID: 17306461 DOI: 10.1016/j.bbagen.2006.12.014] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2006] [Revised: 12/11/2006] [Accepted: 12/14/2006] [Indexed: 11/28/2022]
Abstract
Venoms of Colubridae snakes are a rich source of novel compounds, which may have applications in medicine and biochemistry. In the present study, we describe the purification and characterization of a metalloproteinase (patagonfibrase), the first protein to be isolated from Philodryas patagoniensis (Colubridae) snake venom. Patagonfibrase is a single-chain protein, showing a molecular mass of 53,224 Da and an acidic isoelectric point (5.8). It hydrolyzed selectively the Aalpha-chain of fibrinogen and when incubated with fibrinogen or plasma, the thrombin clotting time was prolonged. Prominent hemorrhage developed in mouse skin after intradermal injection of patagonfibrase. When administered into mouse gastrocnemius muscle, it induced local hemorrhage and necrosis, and systemic bleeding in lungs. Patagonfibrase showed proteolytic activity toward azocasein, which was enhanced by Ca(2+) and inhibited by Zn(2+), cysteine, dithiothreitol and Na(2)EDTA. Patagonfibrase impaired platelet aggregation induced by collagen and ADP. Thus, patagonfibrase may play a key role in the pathogenesis of disturbances that occur in P. patagoniensis envenomation, and may be used as a biological tool to explore many facets of hemostasis.
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Affiliation(s)
- M E Peichoto
- Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Corrientes, Argentina.
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Santoro ML, Mobili L, Mesoraca A, Giorlandino C. First report of prenatal diagnosis of genetic congenital deafness in a routine prenatal genetic test. Prenat Diagn 2004; 23:1083-5. [PMID: 14691997 DOI: 10.1002/pd.760] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE We aimed to screen for connexin26 gene (GJB2) mutations associated with autosomal recessive non-syndromic neurosensory deafness (NSRD) in a general risk population. METHODS Screening for the most common connexin26 gene mutations was offered to all women undergoing a second-trimester amniocentesis for fetal karyotype analysis in our Center. After rapid DNA extraction from amniotic fluid, PCR amplification was performed and products analysed to detect mutations of GJB2 gene by a sequencing technique. In particular, we searched for the 20 most frequently reported mutations (out of the approximately 90 so far described) and for which there are commercially available tests. RESULTS From a total of 4819 consecutive amniotic fluids examined, the following five different heterozygous mutations were detected: 35delG in 80 cases, 167delT in 3 cases and 1 occurrence of each of the following mutations: M34T, 35insG and W77R. From these data, a prevalence of 1 : 56 (1.78%) for the heterozygous condition can be estimated in the Mediterranean general risk population. The striking predominance of 35delG mutation is confirmed. In addition, we detected a homozygous 35delG mutation condition in a foetus of no risk parents. In this case, the early diagnosis permitted prompt application of an acoustic prosthesis allowing for cochlear implantation in due time, with significant improvement of the prognosis. CONCLUSIONS In a general risk population, a carrier status for congenital deafness can be observed in 1 : 56 (1.78%) amniotic fluids; this is mostly due to the presence of a 35delG mutation of the connexin26 gene. Occasional identification of homozygous states, although rare, allows the best therapeutic approach.
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Affiliation(s)
- M L Santoro
- Prenatal Diagnosis Center, Artemisia, Rome, Italy.
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Reis CV, Farsky SH, Fernandes BL, Santoro ML, Oliva ML, Mariano M, Chudzinski-Tavassi AM. In vivo characterization of Lopap, a prothrombin activator serine protease from the Lonomia obliqua caterpillar venom. Thromb Res 2001; 102:437-43. [PMID: 11395129 DOI: 10.1016/s0049-3848(01)00268-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Increasing occurrence of hemorrhagic syndrome in man, caused by contact with Lonomia obliqua caterpillars, has been reported in Southern Brazil in the past 10 years. The L. obliqua venom causes a severe consumptive coagulopathy, which can lead to hemorrhagic syndrome. L. obliqua prothrombin activator protease (Lopap) is a 69-kDa prothrombin activator serine protease isolated from L. obliqua caterpillar bristle extract, which is able to evoke thrombus formation, unclottable blood, and fibrinogen depletion when injected into the blood stream of rats. The purified protein generated thrombin from prothrombin, able to clot purified human fibrinogen and plasma. A decrease in platelet count and inhibition of collagen-induced platelet aggregation were observed, as well as leukocyte infiltration in the lungs. In addition, we observed congestion and hemorrhage in renal glomeruli and necrosis in renal distal tubules. These data support the hypothesis that Lopap contributes to the clinical syndrome caused by human contact with L. obliqua, most probably through prothrombin activation, resulting in a consumption coagulopathy.
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Affiliation(s)
- C V Reis
- Laboratory of Biochemistry and Biophysics, Butantan Institute, Center for Applied Toxinology, CEPID-FAPESP, São Paulo, Brazil
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Serrano SM, Reichl AP, Mentele R, Auerswald EA, Santoro ML, Sampaio CA, Camargo AC, Assakura MT. A novel phospholipase A2, BJ-PLA2, from the venom of the snake Bothrops jararaca: purification, primary structure analysis, and its characterization as a platelet-aggregation-inhibiting factor. Arch Biochem Biophys 1999; 367:26-32. [PMID: 10375395 DOI: 10.1006/abbi.1999.1230] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper describes the isolation and primary structure analysis of a new phospholipase A2 with platelet-aggregation-inhibiting activity from the venom of Bothrops jararaca. The protein, named BJ-PLA2, was isolated by means of ammonium sulfate precipitation and anion-exchange and reversed-phase chromatographies and behaved as a homogeneous single-chain protein on SDS-PAGE. Its amino acid sequence was determined by N-terminal sequencing and analysis of overlapped chemical and proteolytic fragments by automated Edman degradation and mass spectometry determination. BJ-PLA2 consists of 124 amino acid residues and has the structural features of snake venom class II phospholipases A2. Chemical modification with p-bromophenacylbromide caused complete loss of enzymatic activity and partially affected the platelet-aggregation-inhibiting activity of BJ-PLA2.
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Affiliation(s)
- S M Serrano
- Laboratory of Biochemistry and Biophysics and Laboratory of Pathophysiology Instituto Butantan, São Paulo, 05503-900, Brazil.
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31
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Santoro ML, Sousa-e-Silva MC, Gonçalves LR, Almeida-Santos SM, Cardoso DF, Laporta-Ferreira IL, Saiki M, Peres CA, Sano-Martins IS. Comparison of the biological activities in venoms from three subspecies of the South American rattlesnake (Crotalus durissus terrificus, C. durissus cascavella and C. durissus collilineatus). Comp Biochem Physiol C Pharmacol Toxicol Endocrinol 1999; 122:61-73. [PMID: 10190029 DOI: 10.1016/s0742-8413(98)10079-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The subspecies of the South American rattlesnake, Crotalus durissus are classified according to their external morphological features and geographical distribution. We have determined some biological activities of C. durissus cascavella, C. durissus collilineatus and C. durissus terrificus venoms. C. durissus terrificus had a significantly higher clotting activity on bovine plasma and fibrinogen, human fibrinogen and rabbit plasma. C. durissus cascavella presented a statistically higher phospholipase A2 (PLA2) activity in regard to C. durissus collilineatus. Their myotoxic and proteolytic activity, median lethal doses, or median platelet aggregating doses (on rabbit and human platelets) could not differentiate the three subspecies examined. However, the electrophoretic profile and the dose-response curve for edematogenic activity for C.d. cascavella venom were different from the others. With regard to the inorganic element content of the venoms, higher levels of Br, Cl and Mg, and a lower level of Zn, were found in C.d. cascavella venom. Crotamine-like activity could not be detected in C.d. cascavella venom. Furthermore, equine antivenom specific for C. durissus terrificus venom cross-reacted equally with the antigens of the three venom pools by ELISA and Western blotting. These results indicate that the venoms from the three studied subspecies of C. durissus were very similar, except for minor differences in paw edema-inducing activity, electrophoretic profile, phospholipase A2 activity, crotamine-like activity and inorganic element contents of C.d. cascavella venom.
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Affiliation(s)
- M L Santoro
- Laboratory of Pathophysiology, Instituto Butantan, São Paulo-SP, Brazil.
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Giorlandino C, Calugi G, Iaconianni L, Santoro ML, Lippa A. Spermatozoa with chromosomal abnormalities may result in a higher rate of recurrent abortion. Fertil Steril 1998; 70:576-7. [PMID: 9757896 DOI: 10.1016/s0015-0282(98)00192-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To determine whether sperm aneuploidy can lead to abortion. DESIGN Clinical study. SETTING Couples with reproductive problems evaluated in a private diagnostic laboratory. PATIENT(S) Two men whose wives had histories of multiple abortions. INTERVENTION(S) Whole and Percoll-processed semen samples were analyzed. MAIN OUTCOME MEASURE(S) The results of fluorescence in situ hybridization. RESULT(S) Aneuploidy rates in Percoll-processed samples were higher than those found in whole specimens. Aneuploid spermatozoa also displayed greater motility. CONCLUSION(S) Sperm aneuploidy should be studied before and after Percoll capacitation in all couples with unexplained infertility.
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Affiliation(s)
- C Giorlandino
- Sterility Department, Artemisia Medical Center, Rome, Italy
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Sano-Martins IS, Santoro ML, Castro SC, Fan HW, Cardoso JL, Theakston RD. Platelet aggregation in patients bitten by the Brazilian snake Bothrops jararaca. Thromb Res 1997; 87:183-95. [PMID: 9259109 DOI: 10.1016/s0049-3848(97)00118-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Patients bitten by the lancehead snake Bothrops jararaca usually develop systemic bleeding. Our aim was to evaluate platelet function in whole blood of 17 human patients bitten by this snake in São Paulo State, Brazil. Bleeding occurred in 71% of these patients, and thrombocytopenia in 53% of them. On admission, most of the patients presented with hypoaggregation to 50 microM ADP and 1.2 mg/ml ristocetin, and only 35% of them to 5 micrograms/ml collagen. Abnormal plasma levels of fibrinogen and fibrin(ogen) degradation products (FDP/fdp) were also observed. Twenty-four hours of finishing serumtherapy, bleeding had already ceased, fibrinogen and FDP/fdp levels returned to hemostatic levels, and values for platelet aggregation returned to the reference range of controls, except for ADP that still remained decreased. These findings evidence that disturbances of platelet function are also an important factor for the development of bleeding in Bothrops envenomation, as well as other known hemostatic disturbances that occur concomitantly.
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Affiliation(s)
- I S Sano-Martins
- Laboratory of Pathophysiology, Butantan Institute, São Paulo, Brazil
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Abstract
The aim of the present study was to evaluate blood contamination of the amniotic fluid collected in 20 patients undergoing a second amniocentesis performed 2 weeks after a first procedure that had failed due to Pseudomonas aeruginosa contamination of the cell cultures. Red blood cell and haemoglobin concentrations in the amniotic fluid were significantly higher in patients who had undergone a transplacental procedure compared with patients in whom the placenta was not traversed with the needle. For both groups, blood contamination of the amniotic fluid was significantly higher compared with a control group of 20 patients undergoing amniocentesis for the first time. Significant blood contamination of the amniotic fluid after amniocentesis occurs in every instance if evaluated at a "second-look' procedure; the blood contamination is higher when an anterior placenta is traversed with the needle. The clinical significance of these findings needs to be further evaluated.
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35
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Sano-Martins IS, Santoro ML, Morena P, Sousa-e-Silva MC, Tomy SC, Antonio LC, Nishikawa AK, Gonçalves IL, Larsson MH, Hagiwara MK. Hematological changes induced by Bothrops jararaca venom in dogs. Braz J Med Biol Res 1995; 28:303-12. [PMID: 8520523] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The mechanism of consumption coagulopathy observed in cases of human envenomation by Bothrops jararaca is well established. However, this mechanism may vary according to the animal species studied. In order to study both the clinical and laboratory aspects of bothropic envenomation in dogs, a sublethal defibrinating dose of venom (100 micrograms/kg) was given intravenously. A coagulopathy similar to that observed in humans - including fibrinogen depletion, consumption of factors II, X, V and antithrombin III, and moderate thrombocytopenia - was observed. The presence of circulating activated platelets was also noted. Neutrophilic leukocytosis, lymphopenia, and monocytosis occurred at different times. Erythrocytic values remained normal in dogs treated with B. jararaca venom compared with those treated with saline alone. The erythrocyte sedimentation rate fell rapidly after venom administration and this fall was correlated logarithmically with fibrinogen concentration. Since the effects of envenomation in dogs is similar to that in humans, it was concluded that the dog can be used as a good animal model for studying human venom-induced coagulopathy.
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Affiliation(s)
- I S Sano-Martins
- Laboratório de Fisiopatologia, Instituto Butantan, São Paulo, Brasil
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Jorge MT, Cardoso JL, Castro SC, Ribeiro L, França FO, de Almeida ME, Kamiguti AS, Santo-Martins IS, Santoro ML, Mancau JE. A randomized 'blinded' comparison of two doses of antivenom in the treatment of Bothrops envenoming in São Paulo, Brazil. Trans R Soc Trop Med Hyg 1995; 89:111-4. [PMID: 7747293 DOI: 10.1016/0035-9203(95)90678-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
An earlier study in São Paulo state suggested that the dose for patients with mild or moderate envenoming by Bothrops snakes (mainly Bothrops jararaca) could be effectively decreased to 4 ampoules (40 mL) of Brazilian Brothrops polyspecific antivenom. The present 'blinded' study examined the lowest dose studied in the first trial (equivalent to 4 x 10 mL ampoules) and half that dose of antivenom (equivalent to 2 x 10 mL ampoules) in 2 similar groups of 170 patients who were comparable in all respects before treatment. The majority of patients showed rapid clinical improvement after treatment with either dose regimen and rapid restoration of blood coagulability and cessation of bleeding. There was no apparent difference between the 2 groups of patients in any respect. The study confirmed that, in such patients, the dose of antivenom can be decreased from 4 ampoules to 2 ampoules without reduction of therapeutic efficacy, and it is highly likely that this reduction will result in a decrease of early anaphylactic reactions caused by the antivenom.
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Affiliation(s)
- M T Jorge
- Hospital Vital Brazil, Instituto Butantan, São Paulo
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Abstract
Erythrocyte osmotic fragility (EOF) was carried out in nineteen dogs naturally infected by Leptospira interrogans serovar icterohaemorrhagiae/copenhagi. A decreased EOF was observed, suggesting a modification of erythrocyte components secondary to disturbances that occur during canine leptospirosis, such as renal damage and hepatic disease.
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Affiliation(s)
- M L Santoro
- Laboratory of Pathophysiology-Institute Butantan, São Paulo, Brazil
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Abstract
Bothrops jararaca venom is approximately 3.5 times more effective at coagulating rabbit plasma than human plasma. To investigate this difference B. jararaca venom was treated with several enzymatic inhibitors and the minimum coagulant dose was determined both on plasma anticoagulated with sodium citrate or a mixture of sodium citrate and heparin, and on fibrinogen (both human and rabbit). On human plasma, the thrombin-like component of the venom accounted for c. 60% of the coagulant activity, such activity was negligible on rabbit plasma. The venom had little clotting activity on rabbit fibrinogen. The factor II- and X-activator components could be inhibited by EDTA, EGTA and 2-mercaptoethanol, whereas the thrombin-like activity was inhibited by PMSF. These differences show that (using human plasma) B. jararaca clotting activity is mainly due to the thrombin-like component, whereas the factor II- and X-activator components are more important on rabbit plasma. The delayed action of the thrombin-like enzyme on rabbit fibrinogen may be attributed to the difference between rabbit and human fibrinopeptide A. Thus, the increased coagulant activity on rabbit plasma may be due to a faster rate of activation of factor X, V or II by snake venom enzymes.
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Affiliation(s)
- M L Santoro
- Laboratory of Pathophysiology, Butantan Institute, São Paulo, Brazil
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Cardoso JL, Fan HW, França FO, Jorge MT, Leite RP, Nishioka SA, Avila A, Sano-Martins IS, Tomy SC, Santoro ML. Randomized comparative trial of three antivenoms in the treatment of envenoming by lance-headed vipers (Bothrops jararaca) in São Paulo, Brazil. Q J Med 1993; 86:315-25. [PMID: 8327649] [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] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In São Paulo City, Brazil, 121 patients with moderately severe envenoming by Bothrops snakes (principally B. jararaca) were randomized for treatment with Brazilian polyspecific Bothrops antivenoms: Instituto Butantan (39 patients), Instituto Vital Brazil (41), Fundação Ezequiel Dias (FUNED) (41). The initial dose was four ampoules (40 ml) in 89 patients with less severe envenoming and eight ampoules (80 ml) in 32 patients with more severe envenoming. A second dose of four ampoules was required in 20 patients. Patients receiving the three antivenoms were comparable in all respects before treatment. There were no deaths. The majority showed rapid clinical improvement, resolution of local envenoming, cessation of bleeding and restoration of blood coagulability. No differences in the efficacy of the three antivenoms were revealed by clinical or laboratory observations, including measures of haematological, haemostatic and biochemical abnormalities. Twelve patients developed abscesses (Butantan 1, Vital Brazil 6, FUNED 5) and seven developed local necrosis (3,1,3). Of 88 patients followed up 20-30 days after the bite 33 (37.5%) still had symptoms or signs of local envenoming, especially swelling. Early (anaphylactic) reactions were unexpectedly frequent after all three antivenoms but were significantly more frequent with Butantan (87%) than with Vital Brazil (37%) or FUNED (56%) antivenoms (p < 0.001). A possible explanation was the higher total protein content and percentage immunoglobulin of Butantan antivenom. The doses of antivenom recommended in Brazil and used in this study may be unnecessarily high, resulting in an unacceptably high incidence of reactions. Results of the study should prompt a critical re-evaluation of antivenom production techniques and dosage recommendations in Brazil.
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Maruyama M, Kamiguti AS, Cardoso JL, Sano-Martins IS, Chudzinski AM, Santoro ML, Morena P, Tomy SC, Antonio LC, Mihara H. Studies on blood coagulation and fibrinolysis in patients bitten by Bothrops jararaca (jararaca). Thromb Haemost 1990; 63:449-53. [PMID: 2402749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The blood coagulation and the fibrinolytic systems of nine patients envenomed by Bothrops jararaca in São Paulo (Brazil) were studied. Five of the accidents were caused by young snakes (less than 50 cm). On admission, four patients had non-clotting and three partially-clotting blood. Fibrinogen levels were decreased due to the thrombin-like activity of the venom as expected. Consequent secondary activation of the fibrinolytic system was evident from the low levels of alpha-2-antiplasmin and the high titres of fibrin(ogen) degradation products. High titres of cross-linked fibrin fragment D (D-dimer) in seven patients together with decreased platelet counts and/or factor V, and/or factor VIII in some, suggests intrinsic thrombin formation as these factors are not consumed in the defibrinogenation induced by venom thrombin-like fractions such as Ancrod and Batroxobin. However, normal or increased levels of antithrombin III in all and normal levels of factor II in eight patients do not support this interpretation. The existence of variable concentrations of other proteins in the venom of B. jararaca such as botrocetin and thrombocytin isolated from B. jararaca and B. atrox or crotalocytin from Crotalus horridus venom should be considered. Such proteins are known to activate factors V, VIII, XIII, and platelets without affecting prothrombin (factor II) and antithrombin III. Slower recovery of the haemostatic disturbances after antivenom administration to patients bitten by young snakes suggests a more severe coagulopathy in such accidents. This is supported by clinical observations.
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Affiliation(s)
- M Maruyama
- Department of Physiology, Miyazaki Medical College, Japan
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41
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Abstract
The normal colon absorbs water, sodium and chloride and secretes potassium and bicarbonate. In ulcerative colitis (UC), modifications occur in the absorption of water, sodium and chloride, whereas the secretion of potassium remains unchanged. There appear to be no data in the literature on bicarbonate secretion. Since some 25% of chloride absorption is coupled with bicarbonate secretion by an anion exchange mechanism, the impairment in chloride absorption should be accompanied by modifications in bicarbonate secretion. Faecal bicarbonate was therefore measured in 20 patients with active UC and 15 normal control subjects. Faecal pH, pCO2 and electrolytes (Na+, K+, Cl-, HCO3-), blood acid-base balance, urinary pH and bicarbonate were determined on the same day in all patients. Faecal pH and bicarbonate were significantly reduced in UC versus controls: pH 6.06 +/- 0.39 versus 6.52 +/- 0.43; HCO3- 8.4 +/- 5.2 versus 34.6 +/- 12.3 mEq/l (mean +/- SD), whereas sodium and chloride were increased. Faecal potassium concentration was normal, but potassium output was increased. Metabolic alkalosis was observed in 8 patients and a normal acid-base balance in the remaining 12. Urinary pH was acid and urinary bicarbonate negligible in all patients. No correlation was observed between plasma, faecal and urinary bicarbonate. Data emerging from this study show that the faecal excretion of bicarbonate is reduced in patients with active UC. A possible explanation for this finding may be impairment of the colonic anion exchange mechanism induced by inflammation of the mucosa. The role of organic anions is also hypothesized. The acid-base balance does not seem to be directly affected by the decrease in faecal bicarbonate loss.
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Vernia P, Breuer RI, Gnaedinger A, Latella G, Santoro ML. Composition of fecal water. Comparison of "in vitro" dialysis with ultrafiltration. Gastroenterology 1984; 86:1557-61. [PMID: 6714579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
We describe a simple method for the collection of stool water using dialysis membrane tubing placed directly into the feces. When the membrane was placed in pure aqueous solutions or in homogenized feces stored at 4 degrees C, equilibration for solutes was complete in 24 h. Exchangeable ions, short chain fatty acids, osmolality, and pH were measured in the fecal water of 8 normal subjects and 36 patients affected by different diarrheal diseases. The composition of fecal water collected by this method was almost identical to that obtained by ultrafiltration of feces immediately after collection. Differences, when present, were minimal (about 4%) and practically irrelevant. This in vitro dialysis method is simple, inexpensive, and seems particularly suitable for the measurement of osmolality, electrolytes, and short chain fatty acid concentrations in large numbers of fecal samples.
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