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Study M706

Study name

Tian PJ 2020

Title

Towards a psychobiotic therapy for depression: Bifidobacterium breve CCFM1025 reverses chronic stress-induced depressive symptoms and gut microbial abnormalities in mice

Overall design

The aim of this study was to investigate the effect and probable mechanisms of CCFM1025 psychobiotic treatment on the chronic unpredictable mild stress (CUMS) model of depression. C57BL/6 mice were divided into the following 4 groups (n = 10 in each group): (1) control group, (2) CUMS group, (3) CUMS + fluoxetine group (stressor plus fluoxetine treatment at the dose of 10 mg/kg), and (4) CUMS + CCFM1025 group (stressor plus CCFM1025 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 = 6-8 per group).

Study Type

Type1;

Type2;

Data available

Unavailable

Organism

Mouse; C57BL/6 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

28

Tissue

Peripheral; Faece; Faece;

Platform

MS-based; GC-MS: TSQ 9000 GC-MS system (Thermo Scientific);

PMID

32258258

DOI

10.1016/j.ynstr.2020.100216

Citation

Tian P, O'Riordan KJ, Lee YK, et al. Towards a psychobiotic therapy for depression: Bifidobacterium breve CCFM1025 reverses chronic stress-induced depressive symptoms and gut microbial abnormalities in mice. Neurobiol Stress. 2020;12:100216.

Metabolite

Acetic acid;

Isobutyric acid;

Butyric acid;

Valeric acid;

Propionic acid;

Isovaleric acid;