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Study M707

Study name

Tian PJ 2019a

Title

Bifidobacterium with the role of 5-hydroxytryptophan synthesis regulation alleviates the symptom of depression and related microbiota dysbiosis

Overall design

The aim of this study was to investigate the effect and probable mechanisms of psychobiotic treatments on the chronic unpredictable mild stress (CUMS) model of depression. C57BL/6J mice were divided into the following 8 groups: (1) control group, (2) CUMS group, (3) CUMS + fluoxetine group (stressor plus fluoxetine treatment at the dose of 10 mg/kg), (4) CUMS + E41 groups (stressor plus E41 bacteria treatment at the dose of 10^9 CFU), (5) CUMS + M2CF22M7 groups (stressor plus M2CF22M7 bacteria treatment at the dose of 10^9 CFU), (6) CUMS + F45BB groups (stressor plus F45BB bacteria treatment at the dose of 10^9 CFU), (7) CUMS + S60 groups (stressor plus S60 bacteria treatment at the dose of 10^9 CFU), and (8) CUMS + H28L1 groups (stressor plus H28L1 bacteria treatment at the dose of 10^9 CFU). The CUMS stress procedure lasted for 5 weeks, and drugs were administered via intragastric during the model building period. Short-chain fatty acids were extracted by diethyl ether from fresh cecal contents and qualified by GC-MS system (n = 6 per group).

Study Type

Type1;

Type2;

Data available

Unavailable

Organism

Mouse; C57BL/6J mouse;

Categories of depression

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

Criteria for depression

Sucrose preference test, forced swimming test, tail suspension test

Sample size

48

Tissue

Peripheral; Faece; Faece;

Platform

MS-based; GC-MS: not reported;

PMID

30743155

DOI

10.1016/j.jnutbio.2019.01.007

Citation

Tian P, Wang G, Zhao J, et al. Bifidobacterium with the role of 5-hydroxytryptophan synthesis regulation alleviates the symptom of depression and related microbiota dysbiosis. J Nutr Biochem. 2019;66:43-51.

Metabolite

Acetic acid;

Butyric acid;

Propionic acid;