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Study M256

Study name

Luborzewski A 2007

Title

Metabolic alterations in the dorsolateral prefrontal cortex after treatment with high-frequency repetitive transcranial magnetic stimulation in patients with unipolar major depression

Overall design

The aim of the present study is to investigate the levels of glutamate, choline compounds, N-acetylaspartate and total creatine (creatine + creatine phosphate) in the left anterior cingulate cortex (ACC) and the left dorsolateral prefrontal cortex (DLPFC) in patients with major depression, before and after a series of 10 consecutive sessions of high-frequency (20 Hz) repetitive transcranial magnetic stimulation (rTMS), and to investigate the relationship between metabolic changes and clinical features of these individuals. Seventeen patients with unipolar major depression were recruited. After 10 days of rTMS, 6 out of seventeen patients were treatment responders (rTMS-treated responder group), defined as a 50% reduction of the Hamilton depression rating scale, and the others were treatment non-responders (rTMS-treated non-responder group). Metabolite quantification was normalized to phantom.

Study Type

Type2;

Type4;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression; Depression;

Criteria for depression

DSM-IV diagnosed MDD

Sample size

17

Tissue

Central; Brain; Dorsolateral prefrontal cortex;

Central; Brain; Anterior cingulate cortex;

Platform

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

PMID

16600298

DOI

10.1016/j.jpsychires.2006.02.003

Citation

Luborzewski A, Schubert F, Seifert F, et al. Metabolic alterations in the dorsolateral prefrontal cortex after treatment with high-frequency repetitive transcranial magnetic stimulation in patients with unipolar major depression. J Psychiatr Res 2007;41(7):606-15.

Metabolite

L-Glutamic acid;

Choline-containing compounds;