title: Proton magnetic resonance spectroscopy in obsessive-compulsive disorder: a pilot investigation comparing treatment responders and non-responders.
abstract: Proton magnetic resonance spectroscopic imaging was performed to compare brain metabolism in patients with obsessive-compulsive OCD. Evaluation was done on responders and non-responders to pharmacotherapy and on healthy controls. The results showed significantly lower NAA/Cr ratios in the right basal ganglia in non-responders than in responders or in controls and higher Cho/Cr ratios in the right thalamus in non-responders than responders. Abnormal neuronal metabolism in the right basal ganglia and right thalamus may be indicating lack of response to treatment to selective serotonin reuptake inhibitor.
authors: The Johns Hopkins University School of Medicine, Russell H Morgan Department of Radiology and Radiological Science, Baltimore, MD, United States.
authors: Mona A
authors: MA
authors: Mohamed
authors: Mari A
authors: MA
authors: Smith
authors: Michael W
authors: MW
authors: Schlund
authors: Gerald
authors: G
authors: Nestadt
authors: Peter B
authors: PB
authors: Barker
authors: Rudolf
authors: R
authors: Hoehn-Saric
mesh_terms: D000328:Adult; D001224:Aspartic Acid / Q000031:analogs & derivatives / Q000378:metabolism; D001479:Basal Ganglia / Q000187:drug effects* / Q000503:physiopathology; D002794:Choline / Q000378:metabolism; D003401:Creatine / Q000378:metabolism; D004292:Dominance, Cerebral / Q000502:physiology; D004734:Energy Metabolism / Q000187:drug effects* / Q000502:physiology; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D009434:Neural Pathways / Q000187:drug effects / Q000503:physiopathology; D009771:Obsessive-Compulsive Disorder / Q000188:drug therapy* / Q000503:physiopathology; D017367:Selective Serotonin Reuptake Inhibitors / Q000627:therapeutic use*; D013788:Thalamus / Q000187:drug effects* / Q000503:physiopathology; D016896:Treatment Outcome
chemical_list: D001224:Aspartic Acid; D002794:Choline; D003401:Creatine; D017367:Selective Serotonin Reuptake Inhibitors; C000179:N-acetylaspartate