Proton magnetic resonance spectroscopy in obsessive-compulsive disorder: a pilot investigation comparing treatment responders and non-responders

Psychiatry Res. 2007 Nov 15;156(2):175-9. doi: 10.1016/j.pscychresns.2007.04.002. Epub 2007 Sep 29.

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.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aspartic Acid / analogs & derivatives
  • Aspartic Acid / metabolism
  • Basal Ganglia / drug effects*
  • Basal Ganglia / physiopathology
  • Choline / metabolism
  • Creatine / metabolism
  • Dominance, Cerebral / physiology
  • Energy Metabolism / drug effects*
  • Energy Metabolism / physiology
  • Female
  • Humans
  • Image Processing, Computer-Assisted*
  • Magnetic Resonance Spectroscopy*
  • Male
  • Middle Aged
  • Neural Pathways / drug effects
  • Neural Pathways / physiopathology
  • Obsessive-Compulsive Disorder / drug therapy*
  • Obsessive-Compulsive Disorder / physiopathology
  • Selective Serotonin Reuptake Inhibitors / therapeutic use*
  • Thalamus / drug effects*
  • Thalamus / physiopathology
  • Treatment Outcome

Substances

  • Serotonin Uptake Inhibitors
  • Aspartic Acid
  • N-acetylaspartate
  • Creatine
  • Choline