• David R Rosenberg, Frank P Macmaster, Yousha Mirza, Janet M Smith, Phillip C Easter, S Preeya Banerjee, Rashmi Bhandari, Courtney Boyd, Michelle Lynch, Michelle Rose, Jennifer Ivey, Rosemond A Villafuerte, Gregory J Moore, and Perry Renshaw.
• Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, Michigan 48201, USA. drosen@med.wayne.edu
• Biol. Psychiatry. 2005 Nov 1; 58 (9): 700-4.

BackgroundAnterior cingulate cortex has been implicated in the pathogenesis of major depressive disorder (MDD). With single voxel proton magnetic resonance spectroscopy, we reported reductions in anterior cingulate glutamatergic concentrations (grouped value of glutamate and glutamine) in 14 pediatric MDD patients versus 14 case-matched healthy control subjects. These changes might reflect a change in glutamate, glutamine, or their combination.MethodsFitting to individually quantify anterior cingulate glutamate and glutamine was performed in these subjects with a new basis set created from data acquired on a 1.5 Tesla General Electric Signa (GE Healthcare, Waukesha, Wisconsin) magnetic resonance imaging scanner with LCModel (Version 6.1-0; Max-Planck-Institute, Gottingen, Germany).ResultsReduced anterior cingulate glutamate was observed in MDD patients versus control subjects (8.79 +/- 1.68 vs. 11.46 +/- 1.55, respectively, p = .0002; 23% decrease). Anterior cingulate glutamine did not differ significantly between patients with MDD and control subjects.ConclusionsThese findings provide confirmatory evidence of anterior cingulate glutamate alterations in pediatric MDD.

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