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Study M303

Study name

McEwen AM 2012

Title

Increased glutamate levels in the medial prefrontal cortex in patients with postpartum depression

Overall design

The aim of this study was to examine whether glutamate (Glu) levels in the medial prefrontal cortex (MPFC) are decreased or increased in women with postpartum depression (PPD) compared to healthy women. Using in vivo magnetic resonance spectroscopy (MRS) at a field strength of 3T single-voxel spectra was acquired from the MPFC of women with postpartum depression (depression group, n = 12) and healthy controls (control group, n = 12) matched for postpartum scan timing. Water-referenced MPFC Glu levels were measured using a MRS technique that allowed us to be specific for Glu with very little glutamine contamination. The concentrations of other water-quantified brain metabolites such as glycerophosphorylcholine plus phosphorylcholine, N-acetylaspartate (NAA), and creatine plus phosphocreatine were measured in the same MR spectra. Metabolite quantification was reported in institutional units.

Study Type

Type1;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Postpartum depression; Postpartum depression;

Criteria for depression

DSM-IV-TR diagnosed MDD

Sample size

24

Tissue

Central; Brain; Medial prefrontal cortex;

Platform

MRS; MRS: 3 T magnet (Magnex Scientific, Concord, CA) with spectrometer (Surrey Medical Imaging System, Surrey, UK);

PMID

22805604

DOI

10.1038/npp.2012.101

Citation

McEwen AM, Burgess DT, Hanstock CC, et al. Increased glutamate levels in the medial prefrontal cortex in patients with postpartum depression. Neuropsychopharmacology 2012;37(11):2428-35.

Metabolite

L-Glutamic acid;