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Study M293

Study name

Grimm S 2012

Title

Region-specific glutamate changes in patients with unipolar depression

Overall design

The present study aimed to investigate glutamate concentrations in patients with unipolar depression in the midcingulate cortex (MCC) as compared to the left dorsolateral prefrontal cortex (DLPFC). Glutamate was determined using magnetic resonance spectroscopy at 3 T in DLPFC and MCC in depressed patients (depression group, n = 14) and matched healthy volunteers (control group, n = 14). A follow-up measurement was performed after 4 weeks of antidepressant treatment. Response to antidepressant therapy was defined as a 50% reduction in the Hamilton Depression Rating Scale scores (HDRS) 17-item version. Clinical response to antidepressant treatment was fulfilled in 7 patients (responder group), and not fulfilled in another 7 patients (non-responder group). Metabolite quantification was normalized to phantom.

Study Type

Type1;

Type2;

Type4;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression; Depression;

Criteria for depression

DSM-IV diagnosed MDD

Sample size

28

Tissue

Central; Brain; Midcingulate cortex;

Central; Brain; Dorsolateral prefrontal cortex;

Platform

MRS; MRS: 3 T scanner (MEDSPEC 30/100, Bruker Biospin, Ettlingen, Germany);

PMID

22595871

DOI

10.1016/j.jpsychires.2012.04.018

Citation

Grimm S, Luborzewski A, Schubert F, et al. Region-specific glutamate changes in patients with unipolar depression. J Psychiatr Res 2012;46(8):1059-65.

Metabolite

L-Glutamic acid;