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Study M009

Study name

Gao XX 2011

Title

Metabonomic study on chronic unpredictable mild stress and intervention effects of Xiaoyaosan in rats using gas chromatography coupled with mass spectrometry

Overall design

This paper was designed to study metabonomic characters of the depression induced by chronic unpredictable mild stress (CUMS) and the therapeutic effects of Xiaoyaosan (XYS) in treating the depression. A plasma metabonomics method based on gas chromatography/mass spectrometry (GC/MS) was developed. Rats were divided into the following 6 groups (n = 8 in each group): (1) control group, (2) CUMS group, (3) CUMS + venlafaxine group (stressor plus venlafaxine treatment at the dose of 25 mg/kg), (4) CUMS + fluoxetine group (stressor plus fluoxetine treatment at the dose of 6 mg/kg), (5) CUMS + middle dose of XYS group (stressor plus XYS treatment at the dose of 46.2 g/kg), and (6) CUMS + high dose of XYS group (stressor plus XYS treatment at the dose of 92.4 g/kg). Six samples per group were used for metabonomic analysis. The CUMS stress procedure lasted for 4 weeks, and drugs were administered via intragastric once per day during the model building period.

Study Type

Type1;

Type2;

Data available

Unavailable

Organism

Rat; Sprague-Dawley rat;

Categories of depression

Animal model; Chronic mild stress model; Chronic mild stress model;

Criteria for depression

Sucrose preference test

Sample size

36

Tissue

Peripheral; Blood; Plasma;

Platform

MS-based; GC-MS: Polaris Q ion trap mass spectrometer (Thermo Fisher Scientific Inc., USA);

PMID

21718771

DOI

10.1016/j.jep.2011.06.024

Citation

Gao X, Zheng X, Li Z, et al. Metabonomic study on chronic unpredictable mild stress and intervention effects of Xiaoyaosan in rats using gas chromatography coupled with mass spectrometry. J Ethnopharmacol 2011;137(1):690-9.

Metabolite

Linoleic acid;

Stearic acid;

Palmitic acid;

L-Tryptophan;

L-Glutamic acid;

Glycine;

L-Glutamine;

Succinic acid;

L-Tyrosine;

L-Glyceric acid;

D-Fructose;

D-Glucose;