Reduced anterior cingulate glutamate in pediatric major depression: a magnetic resonance spectroscopy study.


BACKGROUND Anterior 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. METHODS Fitting 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). RESULTS Reduced 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. CONCLUSIONS These findings provide confirmatory evidence of anterior cingulate glutamate alterations in pediatric MDD.

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@article{Rosenberg2005ReducedAC, title={Reduced anterior cingulate glutamate in pediatric major depression: a magnetic resonance spectroscopy study.}, author={David R. Rosenberg and Frank P MacMaster and Yousha Mirza and Janet M. Smith and Phillip C. Easter and Salil Banerjee and Rashmi P Bhandari and Courtney E Boyd and Michelle T Lynch and Michelle Rose and Jennifer L Ivey and Rosemond A . Villafuerte and Gregory J. Moore and Perry F. Renshaw}, journal={Biological psychiatry}, year={2005}, volume={58 9}, pages={700-4} }