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Study M513

Study name

Zhou YL 2019

Title

Cross-sectional relationship between kynurenine pathway metabolites and cognitive function in major depressive disorder

Overall design

The aim of this study was to examine the relationship between cognitive impairment and kynurenine pathway metabolites in patients with MDD. A total of 146 patients with MDD according to DSM-V (76 males and 70 females) and 72 healthy controls (HCs, 41 males and 31 females) were enrolled, and the severity of depressive symptoms using the 17-item Hamilton Depression Rating Scale (HAMD-17) and cognitive performance including speed of processing, working memory, visual learning and verbal learning were assessed. Blood samples were collected, and serum concentrations of tryptophan (TRP), kynurenine (KYN) and kynurenic acid (KYNA) were measured by liquid chromatography-tandem mass spectrometry.

Study Type

Type1;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression; Depression;

Criteria for depression

DSM-V diagnosed MDD, HAMD-17 >= 17

Sample size

218

Tissue

Peripheral; Blood; Serum;

Platform

MS-based; LC-MS: Agilent 1200 series HPLC system with Agilent 6410 triple quadrupole mass spectrometer (Agilent Technologies, Inc., Santa Clara, CA, USA);

PMID

30419374

DOI

10.1016/j.psyneuen.2018.11.001

Citation

Zhou Y, Zheng W, Liu W, et al. Cross-sectional relationship between kynurenine pathway metabolites and cognitive function in major depressive disorder. Psychoneuroendocrinology. 2019 Mar;101:72-79.

Metabolite

L-Tryptophan;

Kynurenic acid;

Kynurenine/Tryptophan ratio;

Kynurenic acid/Kynurenine ratio;