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Study M258

Study name

Ajilore O 2007

Title

Measurement of brain metabolites in patients with type 2 diabetes and major depression using proton magnetic resonance spectroscopy

Overall design

The aim of this study was to examine the biochemical basis of depression in patients with type 2 diabetes using proton magnetic resonance spectroscopy (MRS). Patients with type 2 diabetes and major depression (diabetes with depression group, n = 20) were scanned along with patients with diabetes alone (diabetes without depression group, n = 24) and healthy controls (control group, n = 21) on a 1.5 T MRI/MRS scanner. Voxels were placed bilaterally in dorsolateral white matter and the subcortical nuclei region, both areas important in the circuitry of late-life depression. Absolute values of myoinositol, creatine, N-acetyl aspartate, glutamate, glutamine, and choline corrected for CSF were measured using the LC-Model algorithm. Metabolite quantification was reported in absolute concentrations.

Study Type

Type1;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression with comorbidity; Depression with comorbidity;

Criteria for depression

DSM-IV diagnosed MDD, HAMD-17 >= 15

Sample size

65

Tissue

Central; Brain; Dorsolateral white matter;

Central; Brain; Subcortical nuclei;

Platform

MRS; MRS: GE 1.5 T MRI/MRS scanner (General Electric Medical Systems, Waukesha, WI);

PMID

17180124

DOI

10.1038/sj.npp.1301248

Citation

Ajilore O, Haroon E, Kumaran S, et al. Measurement of brain metabolites in patients with type 2 diabetes and major depression using proton magnetic resonance spectroscopy. Neuropsychopharmacology 2007;32(6):1224-31.

Metabolite

L-Glutamic acid;

L-Glutamine;

Glutamate and Glutamine;

(Glutamate and Glutamine)/(Creatine and Phosphocreatine) ratio;