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Study M934

Study name

Wu LJ 2022

Title

Oral administration of 5-hydroxytryptophan restores gut microbiota dysbiosis in a mouse model of depression

Overall design

The aim of this study was to determine the effects of 5-hydroxytryptophan on the mouse gut microbiome. Both the high-fat diet and chronic unpredictable stress (CUS) were used to induce the depression phenotype in mice. C57BL/6J mice were divided into the following 4 groups (n = 8/group): (1) control group (normal diet, no stress), (2) control + 5-hydroxytryptophan group (normal diet, no stress, with 5-hydroxytryptophan treatment at the dose of 100 mg/kg), (3) CUS + high-fat diet group (high-fat diet and stress), and (4) CUS + high-fat diet + 5-hydroxytryptophan group (high-fat diet and stress, with 5-hydroxytryptophan treatment at the dose of 100 mg/kg). For the first 5 weeks, mice received CUS stress or no stress. Then mice were orally gavaged daily with 5-hydroxytryptophan or vehicle for 8 weeks. The concentrations of 11 short-chain fatty acids in the serum samples of mice in the four groups were determined using GC-MS analysis.

Study Type

Type1;

Type2;

Type3;

Data available

Unavailable

Organism

Mouse; C57BL/6J mouse;

Categories of depression

Animal model; Other animal model; Other animal model;

Healthy individuals; Healthy individuals; Healthy individuals;

Criteria for depression

Sucrose preference test, forced swimming test

Sample size

32

Tissue

Peripheral; Blood; Serum;

Platform

MS-based; GC-MS: Shimadzu GC2030-QP2020 NX gas chromatography-mass spectrometer;

PMID

35572711

DOI

10.3389/fmicb.2022.864571

Citation

Wu L, Ran L, Wu Y, et al. Oral administration of 5-hydroxytryptophan restores gut microbiota dysbiosis in a mouse model of depression. Front Microbiol. 2022 Apr 28;13:864571.

Metabolite

Acetic acid;

Isobutyric acid;

Butyric acid;

Propionic acid;

Pelargonic acid;