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Study M137

Study name

Zhai XJ 2015c

Title

LC-MS/MS based studies on the anti-depressant effect of hypericin in the chronic unpredictable mild stress rat model

Overall design

The aim of this study was to investigate the anti-depression effects of hypericin on chronic unpredictable mild stress (CUMS) model rats and identify the possible mechanisms. In this study, the protective effects of HY on CUMS-induced depression in rats were investigated by using a combination of behavioral assessments and urinary metabolites analysis. Urinary metabolites analyses were performed using LC-MS/MS. The plasma corticosterone concentration was also measured using LC-MS/MS. During the procedure of experiment, food consumption, body weight, adrenal gland, thymus and spleen indices, behavior scores, sucrose consumption, and stress hormone levels were measured. All the rats were divided into 4 groups (n = 6 in each group): (1) control group, (2) CUMS group, (3) CUMS + hypericin group (stress plus hypericin treatment at the dose of 1.56 mg/kg), and (4) CUMS + venlafaxine group (stress plus venlafaxine treatment at the dose of 7.81 mg/kg). The CUMS stress procedure lasted for 4 weeks, and drugs were administered once a 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

24

Tissue

Peripheral; Urine; Urine;

Peripheral; Blood; Plasma;

Platform

MS-based; LC-MS: Shimadzu LC-30AD pump (Shimadzu, Kyoto, Japan) with API QTRAP 5500 triple quadrupole mass spectrometer (AB/MDSSciex, Ontario, Canada);

PMID

25957811

DOI

10.1016/j.jep.2015.04.053

Citation

Zhai XJ, Chen F, Chen C, et al. LC-MS/MS based studies on the anti-depressant effect of hypericin in the chronic unpredictable mild stress rat model. J Ethnopharmacol 2015; 169:363-9.

Metabolite

L-Tryptophan;

L-Valine;

L-Proline;

L-Glutamic acid;

L-Glutamine;

Hippuric acid;

Tyramine;

Pimelic acid;

L-Tyrosine;

5-Hydroxyindoleacetic acid;

Corticosterone;