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Bifidobacterium adolescentis Exerts Strain-Specific Effects on Constipation Induced by Loperamide in BALB/c Mice

  • 2017-02-20
  • International Journal of Molecular Sciences 18(2)
    • Linlin Wang
    • Lujun Hu
    • Qi Xu
    • B. Yin
    • Dongsheng Fang
    • Gang Wang
    • Jianxin Zhao
    • H. Zhang
    • Wei Chen

Abstract

Constipation is one of the most common gastrointestinal complaints worldwide. This study was performed to determine whether Bifidobacterium adolescentis exerts inter-strain differences in alleviating constipation induced by loperamide in BALB/c mice and to analyze the main reasons for these differences. BALB/c mice underwent gavage with B. adolescentis (CCFM 626, 667, and 669) once per day for 17 days. The primary outcome measures included related constipation indicators, and the secondary outcome measures were the basic biological characteristics of the strains, the concentration changes of short-chain fatty acids in feces, and the changes in the fecal flora. B. adolescentis CCFM 669 and 667 relieved constipation symptoms by adhering to intestinal epithelial cells, growing quickly in vitro and increasing the concentrations of propionic and butyric acids. The effect of B. adolescentis on the gut microbiota in mice with constipation was investigated via 16S rRNA metagenomic analysis. The results revealed that the relative abundance of Lactobacillus increased and the amount of Clostridium decreased in the B. adolescentis CCFM 669 and 667 treatment groups. In conclusion, B. adolescentis exhibits strain-specific effects in the alleviation of constipation, mostly due to the strains' growth rates, adhesive capacity and effects on the gut microbiome and microenvironment.

Keywords: Bifidobacterium adolescentis; adhesive; constipation; intestinal community structure; strain-specific.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Bifidobacterium adolescentisImproved Constipation SymptomsBeneficial
Moderate
Bifidobacterium adolescentisIncreased Fecal LactobacilliBeneficial
Moderate
Bifidobacterium adolescentisReduced Fecal Clostridium LevelsBeneficial
Moderate
Bifidobacterium adolescentis iVS-1Improved ConstipationBeneficial
Large
Bifidobacterium adolescentis iVS-1Improved Gut Microbiome CompositionBeneficial
Moderate
Bifidobacterium adolescentis iVS-1Increased Short-Chain Fatty Acid LevelsBeneficial
Moderate
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