Developmental changes in fronto-striatal glutamate and their association with functioning during inhibitory control in autism spectrum disorder and obsessive compulsive disorder

NeuroImage: Clinical

Bob Oranje¹  Jan K. Buitelaar²  Sarah Hohmann³  Sarah Durston⁴  Tobias Banaschewski⁵  Bram Gooskens⁶  David J. Lythgoe⁷  Jilly Naaijen⁷  Anna Kaiser⁷  Steven C.R. Williams⁷  Viola Hollestein⁸  Daniel Brandeis⁸ 

[1] Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland;Corresponding author at: Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, P.O Box 9101, 6500 HB Nijmegen, the Netherlands.;Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zurich, Zurich, Switzerland;ETH Zurich, Zurich, Switzerland;Karakter Child and Adolescent Psychiatry University Center, Nijmegen, the Netherlands;Neuroscience Center Zurich, University of Zurich, Zurich, Switzerland;Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty, Mannheim/Heidelberg University, Mannheim, Germany;Department of Cognitive Neuroscience, Donders Institute of Brain, Cognition and Behaviour, Radboud University Medical Center, the Netherlands;

关键词: Compulsivity;    Fronto-striatal;    Glutamate;    Spectroscopy;    Inhibitory control;   

DOI  :  

来源: DOAJ

【 摘 要 】

Autism spectrum disorder (ASD) and obsessive compulsive disorder (OCD) show overlapping symptomatology and deficits in inhibitory control, which are associated with altered functioning and glutamatergic signaling in fronto-striatal circuitry. These parameters have never been examined together. The purpose of the current study was to investigate functioning during inhibitory control and its association with fronto-striatal glutamate concentrations across these disorders using a multi-center, longitudinal approach. Adolescents with ASD (n = 24), OCD (n = 15) and controls (n = 35) underwent two magnetic resonance imaging (MRI) sessions with a one-year interval. This included proton magnetic resonance spectroscopy (1H-MRS; n = 74) and functional MRI during an inhibitory control task (n = 53). We investigated 1H-MRS data and fMRI data separately as well as integrated in a multimodal analysis using linear models focusing on diagnosis and continuous measures of overlapping compulsivity symptoms. ACC glutamate was reduced over time in the ASD group compared with controls, while striatal glutamate decreased over time independent of diagnosis. Increased compulsive behavior seemed to be associated with increased striatal activity during failed inhibitory control. The integrated analyses showed differential involvement of increased striatal glutamate during failed but decreased striatal glutamate during successful inhibitory control in the OCD group compared to controls and ASD, suggesting different underlying mechanisms for OCD compared to ASD.

【 授权许可】

Unknown