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Study M269

Study name

Milne A 2009

Title

Hippocampal metabolic abnormalities at first onset and with recurrent episodes of a major depressive disorder: a proton magnetic resonance spectroscopy study

Overall design

The aim of this study was to examine metabolite levels of N-acetyl-aspartate (NAA), Myo-inositol (MI), Glutamate-glutamine (Glx) and choline-containing compounds (GPC and GPC + PCh) in patients presenting for first treatment of a depressive episode compared to those with multiple past episodes and age and sex matched controls. We used single voxel proton magnetic resonance spectroscopy (1H-MRS) centered on the hippocampus. Four groups were recruited, including first episode depression group (n = 14), control for first episode group (n = 13), multiple episode group (n = 14), and control for multiple episode group (n = 14). LC model normalizes the metabolite spectra obtained using an unsuppressed water peak as a reference. Absolute concentrations of NAA, Glx, GPC, GPC+PCh and MI were derived and compared between groups.

Study Type

Type1;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression; Depression;

Criteria for depression

DSM-IV diagnosed MDD

Sample size

55

Tissue

Central; Brain; Hippocampus;

Platform

MRS; MRS: GE short-bore 3 T MRI system (General Electric Healthcare, Milwaukee, WI);

PMID

19324095

DOI

10.1016/j.neuroimage.2009.03.031

Citation

Milne A, MacQueen GM, Yucel K, et al. Hippocampal metabolic abnormalities at first onset and with recurrent episodes of a major depressive disorder: a proton magnetic resonance spectroscopy study. Neuroimage 2009;47(1):36-41.

Metabolite

myo-Inositol;

Choline-containing compounds;