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Staben J, Koch M, Reid K, Muckerheide J, Gilman L, McGuinness F, Kiesser S, Oswald IWH, Koby KA, Martin TJ, Kaplan JS. Cannabidiol and cannabis-inspired terpene blends have acute prosocial effects in the BTBR mouse model of autism spectrum disorder. Front Neurosci 2023; 17:1185737. [PMID: 37397463 PMCID: PMC10311644 DOI: 10.3389/fnins.2023.1185737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/25/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction Cannabidiol (CBD) is a non-intoxicating phytocannabinoid with increasing popularity due to its purported therapeutic efficacy for numerous off-label conditions including anxiety and autism spectrum disorder (ASD). Those with ASD are commonly deficient in endogenous cannabinoid signaling and GABAergic tone. CBD has a complex pharmacodynamic profile that includes enhancing GABA and endocannabinoid signaling. Thus, there is mechanistic justification for investigating CBD's potential to improve social interaction and related symptoms in ASD. Recent clinical trials in children with ASD support CBD's beneficial effects in numerous comorbid symptoms, but its impact on social behavior is understudied. Methods Here, we tested the prosocial and general anxiolytic efficacy of a commercially available CBD-rich broad spectrum hemp oil delivered by repeated puff vaporization and consumed via passive inhalation in the female cohort of the BTBR strain, a common inbred mouse line for preclinical assessment of ASD-like behaviors. Results We observed that CBD enhanced prosocial behaviors using the 3-Chamber Test with a different vapor dose-response relationship between prosocial behavior and anxiety-related behavior on the elevated plus maze. We also identified that inhalation of a vaporized terpene blend from the popular OG Kush cannabis strain increased prosocial behavior independently of CBD and acted together with CBD to promote a robust prosocial effect. We observed similar prosocial effects with two additional cannabis terpene blends from the Do-Si-Dos and Blue Dream strains, and further reveal that these prosocial benefits rely on the combination of multiple terpenes that comprise the blends. Discussion Our results illustrate the added benefit of cannabis terpene blends for CBD-based treatment of ASD.
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Affiliation(s)
- Jenika Staben
- Department of Psychology, Behavioral Neuroscience Program, Western Washington University, Bellingham, WA, United States
| | - Megan Koch
- Department of Psychology, Behavioral Neuroscience Program, Western Washington University, Bellingham, WA, United States
| | - Keelee Reid
- Department of Psychology, Behavioral Neuroscience Program, Western Washington University, Bellingham, WA, United States
| | - Jessica Muckerheide
- Department of Psychology, Behavioral Neuroscience Program, Western Washington University, Bellingham, WA, United States
| | - Lauren Gilman
- Department of Psychology, Behavioral Neuroscience Program, Western Washington University, Bellingham, WA, United States
| | - Finn McGuinness
- Department of Psychology, Behavioral Neuroscience Program, Western Washington University, Bellingham, WA, United States
| | - Sarina Kiesser
- Scientific Technical Services, Western Washington University, Bellingham, WA, United States
| | - Iain W. H. Oswald
- Department of Research and Development, Abstrax Tech, Inc., Tustin, CA, United States
| | - Kevin A. Koby
- Department of Research and Development, Abstrax Tech, Inc., Tustin, CA, United States
| | - Thomas J. Martin
- Department of Research and Development, Abstrax Tech, Inc., Tustin, CA, United States
| | - Joshua S. Kaplan
- Department of Psychology, Behavioral Neuroscience Program, Western Washington University, Bellingham, WA, United States
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Yang R, Zhang G, Shen Y, Ou J, Liu Y, Huang L, Zeng Y, Lin J, Liu R, Wu R, Xia K, Zhang F, Zhao J. Odor identification impairment in autism spectrum disorder might be associated with mitochondrial dysfunction. Asian J Psychiatr 2022; 72:103072. [PMID: 35334286 DOI: 10.1016/j.ajp.2022.103072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/25/2022] [Accepted: 03/09/2022] [Indexed: 11/02/2022]
Abstract
Deficits in olfactory function in autism spectrum disorder (ASD) have already been reported. However, the results of previous studies are not consistent, and the pathophysiological mechanisms of olfactory dysfunction in ASD are not clear. Fifty-three male ASD children or teenagers aged 9-16 years were recruited for the study. The identification and discrimination portion of the Sniffin' Sticks test (SST) was used to assess the olfactory function of the enrolled subjects. The severity of ASD core symptoms and the intelligence quotient (IQ) of participants were assessed. In addition, to explore the potential mechanism underlying olfactory dysfunction, a series of plasma biochemical indicators of oxidative stress, mitochondrial function and inflammation were measured. The mean raw scores on the SST identification and discrimination test of the study subjects were significantly lower than those of typically developing subjects reported in normative data studies. After adjusting for IQ, the odor identification score was not significantly associated with any ASD symptoms. Odor identification was found to be significantly associated with the ratio of L-lactate (L)/pyruvate (P) but not with other measured indicators. The current study validates the impairment of odor identification and discrimination in Chinese ASD children. Odor identification dysfunction may be an independent clinical symptom of ASD. The plasma L/P ratio was found to be significantly associated with odor identification performance, which suggests that mitochondrial dysfunction may be a potential mechanism underlying odor identification impairment in ASD.
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Affiliation(s)
- Rushi Yang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China; Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Ge Zhang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China; Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Yidong Shen
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China.
| | - Jianjun Ou
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China.
| | - Yanan Liu
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lian Huang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China; Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Ying Zeng
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jingjing Lin
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ruiting Liu
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China; Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Renrong Wu
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Kun Xia
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Fengyu Zhang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China; The Global Clinical and Translational Research Institute, Bethesda, MD 20814, USA
| | - Jingping Zhao
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, China
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3
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Patel ZM, Holbrook EH, Turner JH, Adappa ND, Albers MW, Altundag A, Appenzeller S, Costanzo RM, Croy I, Davis GE, Dehgani-Mobaraki P, Doty RL, Duffy VB, Goldstein BJ, Gudis DA, Haehner A, Higgins TS, Hopkins C, Huart C, Hummel T, Jitaroon K, Kern RC, Khanwalkar AR, Kobayashi M, Kondo K, Lane AP, Lechner M, Leopold DA, Levy JM, Marmura MJ, Mclelland L, Miwa T, Moberg PJ, Mueller CA, Nigwekar SU, O'Brien EK, Paunescu TG, Pellegrino R, Philpott C, Pinto JM, Reiter ER, Roalf DR, Rowan NR, Schlosser RJ, Schwob J, Seiden AM, Smith TL, Soler ZM, Sowerby L, Tan BK, Thamboo A, Wrobel B, Yan CH. International consensus statement on allergy and rhinology: Olfaction. Int Forum Allergy Rhinol 2022; 12:327-680. [PMID: 35373533 DOI: 10.1002/alr.22929] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/01/2021] [Accepted: 11/19/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND The literature regarding clinical olfaction, olfactory loss, and olfactory dysfunction has expanded rapidly over the past two decades, with an exponential rise in the past year. There is substantial variability in the quality of this literature and a need to consolidate and critically review the evidence. It is with that aim that we have gathered experts from around the world to produce this International Consensus on Allergy and Rhinology: Olfaction (ICAR:O). METHODS Using previously described methodology, specific topics were developed relating to olfaction. Each topic was assigned a literature review, evidence-based review, or evidence-based review with recommendations format as dictated by available evidence and scope within the ICAR:O document. Following iterative reviews of each topic, the ICAR:O document was integrated and reviewed by all authors for final consensus. RESULTS The ICAR:O document reviews nearly 100 separate topics within the realm of olfaction, including diagnosis, epidemiology, disease burden, diagnosis, testing, etiology, treatment, and associated pathologies. CONCLUSION This critical review of the existing clinical olfaction literature provides much needed insight and clarity into the evaluation, diagnosis, and treatment of patients with olfactory dysfunction, while also clearly delineating gaps in our knowledge and evidence base that we should investigate further.
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Affiliation(s)
- Zara M Patel
- Otolaryngology, Stanford University School of Medicine, Stanford, California, USA
| | - Eric H Holbrook
- Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts, USA
| | - Justin H Turner
- Otolaryngology, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Nithin D Adappa
- Otolaryngology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mark W Albers
- Neurology, Harvard Medical School, Boston, Massachusetts, USA
| | - Aytug Altundag
- Otolaryngology, Biruni University School of Medicine, İstanbul, Turkey
| | - Simone Appenzeller
- Rheumatology, School of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Richard M Costanzo
- Physiology and Biophysics and Otolaryngology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Ilona Croy
- Psychology and Psychosomatic Medicine, TU Dresden, Dresden, Germany
| | - Greg E Davis
- Otolaryngology, Proliance Surgeons, Seattle and Puyallup, Washington, USA
| | - Puya Dehgani-Mobaraki
- Associazione Naso Sano, Umbria Regional Registry of Volunteer Activities, Corciano, Italy
| | - Richard L Doty
- Smell and Taste Center, Otolaryngology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Valerie B Duffy
- Allied Health Sciences, University of Connecticut, Storrs, Connecticut, USA
| | | | - David A Gudis
- Otolaryngology, Columbia University Irving Medical Center, New York, USA
| | - Antje Haehner
- Smell and Taste, Otolaryngology, TU Dresden, Dresden, Germany
| | - Thomas S Higgins
- Otolaryngology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Claire Hopkins
- Otolaryngology, Guy's and St. Thomas' Hospitals, London Bridge Hospital, London, UK
| | - Caroline Huart
- Otorhinolaryngology, Cliniques universitaires Saint-Luc, Institute of Neuroscience, Université catholgique de Louvain, Brussels, Belgium
| | - Thomas Hummel
- Smell and Taste, Otolaryngology, TU Dresden, Dresden, Germany
| | | | - Robert C Kern
- Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ashoke R Khanwalkar
- Otolaryngology, Stanford University School of Medicine, Stanford, California, USA
| | - Masayoshi Kobayashi
- Otorhinolaryngology-Head and Neck Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Kenji Kondo
- Otolaryngology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Andrew P Lane
- Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Matt Lechner
- Otolaryngology, Barts Health and University College London, London, UK
| | - Donald A Leopold
- Otolaryngology, University of Vermont Medical Center, Burlington, Vermont, USA
| | - Joshua M Levy
- Otolaryngology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Michael J Marmura
- Neurology Thomas Jefferson University School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lisha Mclelland
- Otolaryngology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Takaki Miwa
- Otolaryngology, Kanazawa Medical University, Ishikawa, Japan
| | - Paul J Moberg
- Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
| | | | - Sagar U Nigwekar
- Division of Nephrology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Erin K O'Brien
- Otolaryngology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Teodor G Paunescu
- Division of Nephrology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Carl Philpott
- Otolaryngology, University of East Anglia, Norwich, UK
| | - Jayant M Pinto
- Otolaryngology, University of Chicago, Chicago, Illinois, USA
| | - Evan R Reiter
- Otolaryngology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - David R Roalf
- Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
| | - Nicholas R Rowan
- Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Rodney J Schlosser
- Otolaryngology, Medical University of South Carolina, Mt Pleasant, South Carolina, USA
| | - James Schwob
- Biomedical Sciences, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Allen M Seiden
- Otolaryngology, University of Cincinnati School of Medicine, Cincinnati, Ohio, USA
| | - Timothy L Smith
- Otolaryngology, Oregon Health and Sciences University, Portland, Oregon, USA
| | - Zachary M Soler
- Otolaryngology, Medical University of South Carolina, Mt Pleasant, South Carolina, USA
| | - Leigh Sowerby
- Otolaryngology, University of Western Ontario, London, Ontario, Canada
| | - Bruce K Tan
- Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Andrew Thamboo
- Otolaryngology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Bozena Wrobel
- Otolaryngology, Keck School of Medicine, USC, Los Angeles, California, USA
| | - Carol H Yan
- Otolaryngology, School of Medicine, UCSD, La Jolla, California, USA
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Stankovic J, Hove Thomsen P, Ovesen T. Food preferences, food neophobia and chemosensation among adolescents with ADHD. Acta Paediatr 2021; 110:2187-2199. [PMID: 33534932 DOI: 10.1111/apa.15790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 11/30/2022]
Abstract
AIM It has been suggested that adolescents diagnosed with ADHD have an unhealthier diet compared to their peers without ADHD. The association between chemosensation (smell and taste) and dietary patterns remains unknown. The aim is to investigate unhealthy food preferences and food neophobic behaviour among adolescents diagnosed with ADHD. Additionally, it is to investigate the relationship between dietary patterns and chemosensory function. METHODS We enrolled 36 adolescents with and without ADHD to complete a food item and a food neophobia questionnaire and to undergo chemosensory testing. RESULTS Adolescents with ADHD performed significantly worse on both chemosensory tests compared to the non-ADHD group. No difference in food preferences nor food neophobia was found between the two groups. CONCLUSION Adolescents with ADHD have a lower score on chemosensory tests compared to their peers, suggesting impaired chemosensory function. No differences in dietary preferences nor food neophobia were seen between the two groups.
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Affiliation(s)
| | - Per Hove Thomsen
- Department of Clinical Medicine Psychiatric Hospital for Children and Adolescents Aarhus University Hospital Risskov Denmark
| | - Therese Ovesen
- Department of Otorhinolaryngology Region Hospital Holstebro Holstebro Denmark
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5
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The potential for retronasally delivered olfactory stimuli to assess psychiatric conditions. CURRENT PSYCHOLOGY 2021. [DOI: 10.1007/s12144-019-00238-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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Looking beneath the surface: Distinguishing between common features in autism and anorexia nervosa. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.jbct.2020.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Osório JMA, Rodríguez-Herreros B, Romascano D, Junod V, Habegger A, Pain A, Richetin S, Yu P, Isidor B, Van Maldergem L, Pons L, Manificat S, Chabane N, Jequier Gygax M, Maillard AM. Touch and olfaction/taste differentiate children carrying a 16p11.2 deletion from children with ASD. Mol Autism 2021; 12:8. [PMID: 33546725 PMCID: PMC7863523 DOI: 10.1186/s13229-020-00410-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/22/2020] [Indexed: 11/24/2022] Open
Abstract
Background Sensory processing atypicalities are frequent in Autism Spectrum Disorder (ASD) and neurodevelopmental disorders (NDD). Different domains of sensory processing appear to be differentially altered in these disorders. In this study, we explored the sensory profile of two clinical cohorts, in comparison with a sample of typically developing children. Methods Behavioral responses to sensory stimuli were assessed using the Sensory Processing Measure (parent-report questionnaire). We included 121 ASD children, 17 carriers of the 16p11.2 deletion (Del 16p11.2) and 45 typically developing (TD) children. All participants were aged between 2 and 12 years. Additional measures included the Tactile Defensiveness and Discrimination Test-Revised, Wechsler Intelligence Scales and Autism Diagnostic Observation Schedule (ADOS-2). Statistical analyses included MANCOVA and regression analyses. Results ASD children score significantly higher on all SPM subscales compared to TD. Del16p11.2 also scored higher than TD on all subscales except for tactile and olfactory/taste processing, in which they score similarly to TD. When assessing sensory modulation patterns (hyper-, hypo-responsiveness and seeking), ASD did not significantly differ from del16p11.2. Both groups had significantly higher scores across all patterns than the TD group. There was no significant association between the SPM Touch subscale and the TDDT-R. Limitations Sensory processing was assessed using a parent-report questionnaire. Even though it captures observable behavior, a questionnaire does not assess sensory processing in all its complexity. The sample size of the genetic cohort and the small subset of ASD children with TDDT-R data render some of our results exploratory. Divergence between SPM Touch and TDDT-R raises important questions about the nature of the process that is assessed. Conclusions Touch and olfaction/taste seem to be particularly affected in ASD children compared to del16p11.2. These results indicate that parent report measures can provide a useful perspective on behavioral expression. Sensory phenotyping, when combined with neurobiological and psychophysical methods, might have the potential to provide a better understanding of the sensory processing in ASD and in other NDD.
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Affiliation(s)
- Joana Maria Almeida Osório
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Borja Rodríguez-Herreros
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - David Romascano
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Vincent Junod
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Aline Habegger
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Aurélie Pain
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Sonia Richetin
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Paola Yu
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland.,Laboratory for Investigative Neurophysiology (LINE), Department of Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | | | - Lionel Van Maldergem
- Centre de Génétique Humaine, Centre Hospitalier Régional Universitaire, Université de Franche-Comté, Besançon, France.,Unité de recherche en neurosciences intégratives et cognitives EA481, Université de Franche-Comté, Besançon, France.,Centre d'investigation clinique 1431, INSERM, Besançon, France
| | - Linda Pons
- Service Génopsy - Pôle Hospitalo-Universitaire ADIS, Centre hospitalier Le Vinatier, Bron, France
| | - Sabine Manificat
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Nadia Chabane
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Marine Jequier Gygax
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland
| | - Anne Manuela Maillard
- CHUV-Centre Hospitalier Universitaire Vaudois, Service des Troubles du Spectre de l'Autisme et apparentés, Lausanne University Hospital, Les Allières - Av. Beaumont 23, 1011, Lausanne, Switzerland.
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Hartig R, Wolf D, Schmeisser MJ, Kelsch W. Genetic influences of autism candidate genes on circuit wiring and olfactory decoding. Cell Tissue Res 2021; 383:581-595. [PMID: 33515293 PMCID: PMC7872953 DOI: 10.1007/s00441-020-03390-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/10/2020] [Indexed: 12/24/2022]
Abstract
Olfaction supports a multitude of behaviors vital for social communication and interactions between conspecifics. Intact sensory processing is contingent upon proper circuit wiring. Disturbances in genetic factors controlling circuit assembly and synaptic wiring can lead to neurodevelopmental disorders, such as autism spectrum disorder (ASD), where impaired social interactions and communication are core symptoms. The variability in behavioral phenotype expression is also contingent upon the role environmental factors play in defining genetic expression. Considering the prevailing clinical diagnosis of ASD, research on therapeutic targets for autism is essential. Behavioral impairments may be identified along a range of increasingly complex social tasks. Hence, the assessment of social behavior and communication is progressing towards more ethologically relevant tasks. Garnering a more accurate understanding of social processing deficits in the sensory domain may greatly contribute to the development of therapeutic targets. With that framework, studies have found a viable link between social behaviors, circuit wiring, and altered neuronal coding related to the processing of salient social stimuli. Here, the relationship between social odor processing in rodents and humans is examined in the context of health and ASD, with special consideration for how genetic expression and neuronal connectivity may regulate behavioral phenotypes.
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Affiliation(s)
- Renée Hartig
- Department of Psychiatry & Psychotherapy, University Medical Center, Johannes Gutenberg-University, 55131, Mainz, Germany.,Focus Program Translational Neurosciences (FTN), University Medical Center, Johannes Gutenberg-University, 55131, Mainz, Germany.,Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159, Mannheim, Germany.,Institute for Microscopic Anatomy and Neurobiology, University Medical Center, Johannes Gutenberg-University, 55131, Mainz, Germany
| | - David Wolf
- Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159, Mannheim, Germany
| | - Michael J Schmeisser
- Focus Program Translational Neurosciences (FTN), University Medical Center, Johannes Gutenberg-University, 55131, Mainz, Germany.,Institute for Microscopic Anatomy and Neurobiology, University Medical Center, Johannes Gutenberg-University, 55131, Mainz, Germany
| | - Wolfgang Kelsch
- Department of Psychiatry & Psychotherapy, University Medical Center, Johannes Gutenberg-University, 55131, Mainz, Germany. .,Focus Program Translational Neurosciences (FTN), University Medical Center, Johannes Gutenberg-University, 55131, Mainz, Germany. .,Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159, Mannheim, Germany.
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9
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Olfactory Dysfunction in Neurodevelopmental Disorders: A Meta-analytic Review of Autism Spectrum Disorders, Attention Deficit/Hyperactivity Disorder and Obsessive-Compulsive Disorder. J Autism Dev Disord 2020; 50:2685-2697. [PMID: 31960263 DOI: 10.1007/s10803-020-04376-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Olfactory dysfunction is recognized in neurodevelopmental disorders and may serve as an early indicator of global dysfunction. The present meta-analysis measures olfaction effect sizes in attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorders (ASDs), and obsessive-compulsive disorder (OCD). Meta-analysis included 320 ADHD, 346 ASD, and 208 OCD individuals as compared to 910 controls. Olfactory performance deficits were small-to-moderate and heterogeneous (d = - 0.42, 95% CI = - 0.59 < δ < - 0.25). Meta-analytic results indicate that olfactory dysfunction is evident in individuals with ASD and OCD, with small-to-negligible effects in ADHD. These findings imply olfactory dysfunction is related to clinical phenotype in ASD and OCD, but not ADHD, and warrant inclusion in clinical assessment and evaluation of certain neurodevelopmental disorders.
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10
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Xu M, Minagawa Y, Kumazaki H, Okada KI, Naoi N. Prefrontal Responses to Odors in Individuals With Autism Spectrum Disorders: Functional NIRS Measurement Combined With a Fragrance Pulse Ejection System. Front Hum Neurosci 2020; 14:523456. [PMID: 33132871 PMCID: PMC7579723 DOI: 10.3389/fnhum.2020.523456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 09/16/2020] [Indexed: 12/27/2022] Open
Abstract
Individuals with autism spectrum disorders (ASD) are impaired not only in social competencies but also in sensory perception, particularly olfaction. The olfactory ability of individuals with ASD has been examined in several psychophysical studies, but the results have been highly variable, which might be primarily due to methodological difficulties in the control of odor stimuli (e.g., the problem of lingering scents). In addition, the neural correlates of olfactory specificities in individuals with ASD remain largely unknown. To date, only one study has investigated this issue using functional magnetic resonance imaging (fMRI). The present study utilized a sophisticated method-a pulse ejection system-to present well-controlled odor stimuli to participants with ASD using an ASD-friendly application. With this advantageous system, we examined their odor detection, identification, and evaluation abilities and measured their brain activity evoked by odors using functional near-infrared spectroscopy (fNIRS). As the odor detection threshold (DT) of participants with ASD was highly variable, these participants were divided into two groups according to their DT: an ASD-Low DT group and an ASD-High DT group. Behavioral results showed that the ASD-High DT group had a significantly higher DT than the typically developing (control) group and the ASD-Low DT group, indicating their insensitivity to the tested odors. In addition, while there was no significant difference in the odor identification ability between groups, there was some discrepancy between the groups' evaluations of odor pleasantness. The brain data identified, for the first time, that neural activity in the right dorsolateral prefrontal cortex (DLPFC) was significantly weaker in the ASD-High DT group than in the control group. Moreover, the strength of activity in the right DLPFC was negatively correlated with the DT. These findings suggest that participants with ASD have impairments in the higher-order function of olfactory processing, such as olfactory working memory and/or attention.
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Affiliation(s)
- Mingdi Xu
- Faculty of Letters, Keio University, Tokyo, Japan.,Center of Life-Span Development of Communication Skills, Keio University, Yokohama, Japan
| | - Yasuyo Minagawa
- Faculty of Letters, Keio University, Tokyo, Japan.,Center of Life-Span Development of Communication Skills, Keio University, Yokohama, Japan.,Global Centre for Advanced Research on Logic and Sensibility, Keio University, Tokyo, Japan
| | | | - Ken-Ichi Okada
- Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Nozomi Naoi
- Global Centre for Advanced Research on Logic and Sensibility, Keio University, Tokyo, Japan.,Division of Arts and Sciences, College of Liberal Arts, International Christian University, Tokyo, Japan
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11
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Abstract
The elucidation of odour awareness in children with autism spectrum disorders (ASD) is important. We compared the odour awareness of young children with ASD with those of typical development (TD) children using the Children's Olfactory Behavior in Everyday Life (COBEL) questionnaire, which is a self-report measure that mainly assesses odour awareness. Forty-five young boys (aged 5-6 years), including 20 children with ASD and 25 TD children, participated in this study. The total COBEL score of the young children with ASD was lower than that of the TD children (p < 0.01). Moreover, the total COBEL score was significantly correlated with the total VABS II score (p < 0.05). Our results improve understanding of the odour awareness in children with ASD.
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12
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Barros F, Figueiredo C, Costa A, Soares SC. Sensory Processing in the Autism Spectrum: The Role of Attention to Detail and Somatic Trait Anxiety in the Olfactory Perception of the General Population. J Autism Dev Disord 2020; 51:2338-2353. [PMID: 32964357 DOI: 10.1007/s10803-020-04711-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Autism Spectrum Disorders, as well as autism traits (AT), have been associated with altered sensory processing. However, the role of AT in olfactory processing is still unclear. We analyzed the impact of AT and trait anxiety (TANX), relevant in the context of autism and olfactory perception, in the olfactory abilities of a nonclinical adult sample. Participants (N = 116) completed the Autism-Spectrum Quotient (AQ), the State-Trait Inventory for Cognitive and Somatic Anxiety (STICSA) and the Sniffin' Sticks Extended Test to measure AT, TANX and olfactory abilities, respectively. A hierarchical multiple regression analysis suggested that women and higher scores on the Attention to Detail subscale of AQ were associated with better odor discrimination, and higher somatic TANX was related to poorer odor discrimination.
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Affiliation(s)
- Filipa Barros
- William James Center for Research (WJCR), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
- Center for Health Technology and Services Research (CINTESIS), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Cláudia Figueiredo
- Research Unit on Governance, Competitiveness and Public Policies (GOVCOPP), University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Adriana Costa
- Institute of Health Sciences, Universidade Católica Portuguesa, Campus Palma de Cima, Palma de Cima, 1649-023, Lisboa, Portugal
| | - Sandra C Soares
- William James Center for Research (WJCR), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
- Center for Health Technology and Services Research (CINTESIS), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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13
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Barros F, Soares SC. Giving meaning to the social world in autism spectrum disorders: Olfaction as a missing piece of the puzzle? Neurosci Biobehav Rev 2020; 116:239-250. [PMID: 32562688 DOI: 10.1016/j.neubiorev.2020.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 03/09/2020] [Accepted: 06/04/2020] [Indexed: 12/11/2022]
Abstract
Altered social cognition is a core feature of Autism Spectrum Disorders (ASD). These impairments have been explained as the consequence of compromised social motivational mechanisms that limit social interest and activate a cascade of social deficits. Following this rational, we argue that approaches capable of surpassing ASD usual restraints (e.g., deficits in verbal abilities), and able to assign social meaning, could be more effective at responding to these difficulties. In this framework, we propose that olfaction, as well as cross-modal integration strategies involving both visual and olfactory domains, may have such potential. In fact, most of socioemotional processing deficits in ASD have been shown in an uni-modal perspective, mainly with visual stimuli. However, the social environment involves other modalities and is typically multisensorial. Given the potential of olfaction as a gateway for socioemotional information in ASD, we argue in favor of studying olfactory perception, as well as visuo-olfactory integration, given the potential of these approaches to drive effective interventions and give the access to a meaningful social world in ASD.
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Affiliation(s)
- Filipa Barros
- Center for Health Technology and Services Research (CINTESIS), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; William James Center for Research (WJCR), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sandra C Soares
- Center for Health Technology and Services Research (CINTESIS), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; William James Center for Research (WJCR), Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Nobels väg 9, 171 77 Stockholm, Sweden.
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14
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Olfaction is a Marker of Severity but Not Diagnosis in Anorexia Nervosa: a Systematic Review and Meta-Analysis. Neuropsychol Rev 2020; 30:251-266. [DOI: 10.1007/s11065-020-09438-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 04/16/2020] [Indexed: 12/12/2022]
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15
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Kinnaird E, Stewart C, Tchanturia K. The relationship of autistic traits to taste and olfactory processing in anorexia nervosa. Mol Autism 2020; 11:25. [PMID: 32276668 PMCID: PMC7146886 DOI: 10.1186/s13229-020-00331-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 03/27/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND There is a heightened prevalence of autism in anorexia nervosa (AN) compared to the general population. Autistic people with AN experience a longer illness duration and poorer treatment outcomes. Whether sensory differences in autism could contribute to altered taste and smell as a potential maintaining factor in AN is under-explored. The aim of this study was to explore whether autistic traits are associated with taste and olfaction differences in AN. METHODS The study recruited n = 40 people with AN, and n = 40 healthy controls (HC). Smell sensitivity was measured using the Sniffin' Sticks test. Taste sensitivity was measured using taste strips. Participants self-rated their autistic traits using the Autism Spectrum Quotient. RESULTS There were no significant differences on taste and olfactory outcomes between people with AN and HC. These findings did not change after controlling for the heightened levels of autistic traits in the AN group. No relationship between taste and smell outcomes and autistic traits were identified within the AN group. LIMITATIONS The current study is not able to draw conclusions about taste and smell processing in co-occurring autism and AN as it only measured levels of autistic traits, rather than comparing people with and without an autism diagnosis. CONCLUSIONS No significant associations between autistic traits and taste and smell processing in AN were identified. Future research should consider further exploring this area, including by comparing autistic women to women with AN.
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Affiliation(s)
- Emma Kinnaird
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
| | - Catherine Stewart
- Maudsley Centre for Child and Adolescent Eating Disorders, South London and Maudsley NHS Foundation Trust, London, UK
| | - Kate Tchanturia
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK.
- Eating Disorders Service, South London and Maudsley NHS Foundation Trust, London, UK.
- Department of Psychology, Illia State University, Tbilisi, Georgia.
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16
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Okumura T, Kumazaki H, Singh AK, Touhara K, Okamoto M. Individuals With Autism Spectrum Disorder Show Altered Event-Related Potentials in the Late Stages of Olfactory Processing. Chem Senses 2020; 45:37-44. [PMID: 31711116 DOI: 10.1093/chemse/bjz070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Atypical sensory reactivities are pervasive among people with autism spectrum disorder (ASD). With respect to olfaction, most previous studies have used psychophysical or questionnaire-based methodologies; thus, the neural basis of olfactory processing in ASD remains unclear. This study aimed to determine the stages of olfactory processing that are altered in ASD. Fourteen young adults with high-functioning ASD (mean age, 21 years; 3 females) were compared with 19 age-matched typically developing (TD) controls (mean age, 21 years; 4 females). Olfactory event-related potentials (OERPs) for 2-phenylethyl alcohol-a rose-like odor-were measured with 64 scalp electrodes while participants performed a simple odor detection task. Significant group differences in OERPs were found in 3 time windows 542 ms after the stimulus onset. The cortical source activities in these time windows, estimated using standardized low-resolution brain electromagnetic tomography, were significantly higher in ASD than in TD in and around the posterior cingulate cortex, which is known to play a crucial role in modality-general cognitive processing. Supplemental Bayesian analysis provided substantial evidence for an alteration in the later stages of olfactory processing, whereas conclusive evidence was not provided for the earlier stages. These results suggest that olfactory processing in ASD is altered at least at the later, modality-general processing stage.
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Affiliation(s)
- Toshiki Okumura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Hirokazu Kumazaki
- Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Archana K Singh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan.,ERATO Touhara Chemosensory Signal Project, JST, University of Tokyo, Tokyo, Japan
| | - Kazushige Touhara
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan.,ERATO Touhara Chemosensory Signal Project, JST, University of Tokyo, Tokyo, Japan.,WPI International Research Center for Neurointelligence, University of Tokyo Institutes for Advanced Study, Tokyo, Japan
| | - Masako Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan.,ERATO Touhara Chemosensory Signal Project, JST, University of Tokyo, Tokyo, Japan
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17
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Geramita MA, Wen JA, Rannals MD, Urban NN. Decreased amplitude and reliability of odor-evoked responses in two mouse models of autism. J Neurophysiol 2019; 123:1283-1294. [PMID: 31891524 DOI: 10.1152/jn.00277.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Sensory processing deficits are increasingly recognized as core symptoms of autism spectrum disorders (ASDs). However the molecular and circuit mechanisms that lead to sensory deficits are unknown. We show that two molecularly disparate mouse models of autism display similar deficits in sensory-evoked responses in the mouse olfactory system. We find that both Cntnap2- and Shank3-deficient mice of both sexes exhibit reduced response amplitude and trial-to-trial reliability during repeated odor presentation. Mechanistically, we show that both mouse models have weaker and fewer synapses between olfactory sensory nerve (OSN) terminals and olfactory bulb tufted cells and weaker synapses between OSN terminals and inhibitory periglomerular cells. Consequently, deficits in sensory processing provide an excellent candidate phenotype for analysis in ASDs.NEW & NOTEWORTHY The genetics of autism spectrum disorder (ASD) are complex. How the many risk genes generate the similar sets of symptoms that define the disorder is unknown. In particular, little is understood about the functional consequences of these genetic alterations. Sensory processing deficits are important aspects of the ASD diagnosis and may be due to unreliable neural circuits. We show that two mouse models of autism, Cntnap2- and Shank3-deficient mice, display reduced odor-evoked response amplitudes and reliability. These data suggest that altered sensory-evoked responses may constitute a circuit phenotype in ASDs.
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Affiliation(s)
- Matthew A Geramita
- Department of Neurobiology, Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jing A Wen
- Department of Neurobiology, Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Biology, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Matthew D Rannals
- Department of Neurobiology, Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Nathan N Urban
- Department of Biology, Carnegie Mellon University, Pittsburgh, Pennsylvania
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18
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Stickel S, Weismann P, Kellermann T, Regenbogen C, Habel U, Freiherr J, Chechko N. Audio-visual and olfactory-visual integration in healthy participants and subjects with autism spectrum disorder. Hum Brain Mapp 2019; 40:4470-4486. [PMID: 31301203 PMCID: PMC6865810 DOI: 10.1002/hbm.24715] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/23/2019] [Accepted: 07/01/2019] [Indexed: 01/22/2023] Open
Abstract
The human capacity to integrate sensory signals has been investigated with respect to different sensory modalities. A common denominator of the neural network underlying the integration of sensory clues has yet to be identified. Additionally, brain imaging data from patients with autism spectrum disorder (ASD) do not cover disparities in neuronal sensory processing. In this fMRI study, we compared the underlying neural networks of both olfactory-visual and auditory-visual integration in patients with ASD and a group of matched healthy participants. The aim was to disentangle sensory-specific networks so as to derive a potential (amodal) common source of multisensory integration (MSI) and to investigate differences in brain networks with sensory processing in individuals with ASD. In both groups, similar neural networks were found to be involved in the olfactory-visual and auditory-visual integration processes, including the primary visual cortex, the inferior parietal sulcus (IPS), and the medial and inferior frontal cortices. Amygdala activation was observed specifically during olfactory-visual integration, with superior temporal activation having been seen during auditory-visual integration. A dynamic causal modeling analysis revealed a nonlinear top-down IPS modulation of the connection between the respective primary sensory regions in both experimental conditions and in both groups. Thus, we demonstrate that MSI has shared neural sources across olfactory-visual and audio-visual stimulation in patients and controls. The enhanced recruitment of the IPS to modulate changes between areas is relevant to sensory perception. Our results also indicate that, with respect to MSI processing, adults with ASD do not significantly differ from their healthy counterparts.
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Affiliation(s)
- Susanne Stickel
- Department of Psychiatry, Psychotherapy and PsychosomaticsFaculty of Medicine, RWTH AachenAachenGermany
- Institute of Neuroscience and Medicine: JARA‐Institute Brain Structure Function Relationship (INM 10)Research Center JülichJülichGermany
| | - Pauline Weismann
- Department of Psychiatry and PsychotherapyFriedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany
| | - Thilo Kellermann
- Department of Psychiatry, Psychotherapy and PsychosomaticsFaculty of Medicine, RWTH AachenAachenGermany
- Institute of Neuroscience and Medicine: JARA‐Institute Brain Structure Function Relationship (INM 10)Research Center JülichJülichGermany
| | - Christina Regenbogen
- Department of Psychiatry, Psychotherapy and PsychosomaticsFaculty of Medicine, RWTH AachenAachenGermany
- Institute of Neuroscience and Medicine: JARA‐Institute Brain Structure Function Relationship (INM 10)Research Center JülichJülichGermany
- Department of Clinical NeuroscienceKarolinska InstitutetStockholmSweden
| | - Ute Habel
- Department of Psychiatry, Psychotherapy and PsychosomaticsFaculty of Medicine, RWTH AachenAachenGermany
- Institute of Neuroscience and Medicine: JARA‐Institute Brain Structure Function Relationship (INM 10)Research Center JülichJülichGermany
| | - Jessica Freiherr
- Department of Psychiatry and PsychotherapyFriedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany
- Sensory AnalyticsFraunhofer Institute for Process Engineering and Packaging IVVFreisingGermany
| | - Natalya Chechko
- Department of Psychiatry, Psychotherapy and PsychosomaticsFaculty of Medicine, RWTH AachenAachenGermany
- Institute of Neuroscience and Medicine: JARA‐Institute Brain Structure Function Relationship (INM 10)Research Center JülichJülichGermany
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19
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Bergamot Aromatherapy for Medical Office-Induced Anxiety Among Children With an Autism Spectrum Disorder: A Randomized, Controlled, Blinded Clinical Trial. Holist Nurs Pract 2019; 33:285-294. [PMID: 31415008 DOI: 10.1097/hnp.0000000000000341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This randomized, blinded clinical trial evaluated the effects of aromatherapy on medical office-induced anxiety in children with an autism spectrum disorder. Patients awaiting office visits were randomized into an aromatherapy group and a control group. After adjusting for baseline scores, there was no significant difference between the 2 groups.
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20
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Constable PA, Bailey K, Beck A, Borrello D, Kozman M, Schneider K. Effect size of search superiority in autism spectrum disorder. Clin Exp Optom 2019; 103:296-306. [PMID: 31282016 DOI: 10.1111/cxo.12940] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 04/01/2019] [Accepted: 05/28/2019] [Indexed: 12/20/2022] Open
Abstract
This review of the literature in visual search superiority in autism was intended to quantify the effect size of visual search performance in autism. Not all studies have found an advantage within the autistic population. Early findings on search superiority have led to different proposed mechanisms for the observed results. A review of feature search found that the effect size was low across 15 included studies (Cohen's d 0.089 [-0.150 to 0.293]). However, the effect size was larger for more complex search paradigms using a conjunctive search strategy with Cohen's d showing a moderate effect of 0.223 (0.087 to 0.293). The majority of studies were limited to a small sample size and biased toward the high-functioning end of the autistic spectrum. The overall results indicate that within the autism spectrum disorder population there is a low to moderate search advantage compared to typically developing individuals.
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Affiliation(s)
- Paul A Constable
- College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, Australia
| | - Kristin Bailey
- College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, Australia
| | - Ashleigh Beck
- College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, Australia
| | - Deanna Borrello
- College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, Australia
| | - Marina Kozman
- College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, Australia
| | - Katie Schneider
- College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, Australia
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21
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Huang TN, Yen TL, Qiu LR, Chuang HC, Lerch JP, Hsueh YP. Haploinsufficiency of autism causative gene Tbr1 impairs olfactory discrimination and neuronal activation of the olfactory system in mice. Mol Autism 2019; 10:5. [PMID: 30792833 PMCID: PMC6371489 DOI: 10.1186/s13229-019-0257-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 01/25/2019] [Indexed: 12/21/2022] Open
Abstract
Background Autism spectrum disorders (ASD) exhibit two clusters of core symptoms, i.e., social and communication impairment, and repetitive behaviors and sensory abnormalities. Our previous study demonstrated that TBR1, a causative gene of ASD, controls axonal projection and neuronal activation of amygdala and regulates social interaction and vocal communication in a mouse model. Behavioral defects caused by Tbr1 haploinsufficiency can be ameliorated by increasing neural activity via D-cycloserine treatment, an N-methyl-D-aspartate receptor (NMDAR) coagonist. In this report, we investigate the role of TBR1 in regulating olfaction and test whether D-cycloserine can also improve olfactory defects in Tbr1 mutant mice. Methods We used Tbr1+/− mice as a model to investigate the function of TBR1 in olfactory sensation and discrimination of non-social odors. We employed a behavioral assay to characterize the olfactory defects of Tbr1+/− mice. Magnetic resonance imaging (MRI) and histological analysis were applied to characterize anatomical features. Immunostaining was performed to further analyze differences in expression of TBR1 subfamily members (namely TBR1, TBR2, and TBX21), interneuron populations, and dendritic abnormalities in olfactory bulbs. Finally, C-FOS staining was used to monitor neuronal activation of the olfactory system upon odor stimulation. Results Tbr1+/− mice exhibited smaller olfactory bulbs and anterior commissures, reduced interneuron populations, and an abnormal dendritic morphology of mitral cells in the olfactory bulbs. Tbr1 haploinsufficiency specifically impaired olfactory discrimination but not olfactory sensation. Neuronal activation upon odorant stimulation was reduced in the glomerular layer of Tbr1+/− olfactory bulbs. Furthermore, although the sizes of piriform and perirhinal cortices were not affected by Tbr1 deficiency, neuronal activation was reduced in these two cortical regions in response to odorant stimulation. These results suggest an impairment of neuronal activation in olfactory bulbs and defective connectivity from olfactory bulbs to the upper olfactory system in Tbr1+/− mice. Systemic administration of D-cycloserine, an NMDAR co-agonist, ameliorated olfactory discrimination in Tbr1+/− mice, suggesting that increased neuronal activity has a beneficial effect on Tbr1 deficiency. Conclusions Tbr1 regulates neural circuits and activity in the olfactory system to control olfaction. Tbr1+/− mice can serve as a suitable model for revealing how an autism causative gene controls neuronal circuits, neural activity, and autism-related behaviors. Electronic supplementary material The online version of this article (10.1186/s13229-019-0257-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tzyy-Nan Huang
- 1Institute of Molecular Biology, Academia Sinica, 128, Academia Rd., Sec. 2, Taipei, 11529 Taiwan
| | - Tzu-Li Yen
- 1Institute of Molecular Biology, Academia Sinica, 128, Academia Rd., Sec. 2, Taipei, 11529 Taiwan
| | - Lily R Qiu
- 2Mouse Imaging Centre, Hospital for Sick Children, Toronto, Canada
| | - Hsiu-Chun Chuang
- 1Institute of Molecular Biology, Academia Sinica, 128, Academia Rd., Sec. 2, Taipei, 11529 Taiwan.,4Present address: Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720 USA
| | - Jason P Lerch
- 2Mouse Imaging Centre, Hospital for Sick Children, Toronto, Canada.,3Department of Medical Biophysics, The University of Toronto, Toronto, Canada
| | - Yi-Ping Hsueh
- 1Institute of Molecular Biology, Academia Sinica, 128, Academia Rd., Sec. 2, Taipei, 11529 Taiwan
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