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Article Publish Status: FREE
Abstract Title:

The ProbioticAmeliorates Diarrhea Cause byOGut Microbiota Modulation.

Abstract Source:

Front Nutr. 2022 ;9:878808. Epub 2022 May 17. PMID: 35662940

Abstract Author(s):

Shunan Ren, Chunjie Wang, Aorigele Chen, Wenting Lv, Ruijuan Gao

Article Affiliation:

Shunan Ren

Abstract:

Introduction: Koumiss is a fermented horse milk food containing abundant probiotics.is a bacterial strain isolated from koumiss that helps regulate the intestinal microbiota. One of the major cause of diarrhea is an imbalance of the intestinal flora. The aim of this study was to investigate whethercan ameliorate-induced diarrhea and modulate the gut microbiota.

Methods: Mouse models of diarrhea were establishedintragastricOadministration. We then attempted to prevent or treat diarrhea in the miceintragastric administration of a 3× 10CFU/mLcell suspension. The severity of diarrhea was evaluated based on the body weight, diarrhea rate, and index, fecal diameter, ileum injury, hematoxylin-eosin (H&E) staining, and diamine oxidase (DAO) and zonulin expression. Expression of the tight junction (TJ) proteins claudin-1, occludin, and zona occludens (ZO-)1 were detected by immunohistochemistry (IHC). Gastrointestinal mRNA expression levels of interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α were detected by real-time polymerase chain reaction (RT-PCR). The microbial composition was analyzed by 16s rRNA sequencing.

Results: Thedemonstrated excellent therapeutic efficacy against diarrhea. It elevated the TJ protein levels and downregulated proinflammatory cytokines IL-6, IL-1β, TNF-α, and p65, myosin light chain 2 (MLC2), myosin light chain kinase (MLCK). Moreoverincreased those bacteria, which can product short-chain fatty acid (SCFA) such, and.

Conclusion: ameliorated diarrhea by inhibiting activation of the nuclear factor kappa B (NF-κB)-MLCK pathway and increasing the abundance of gut microbiota that produce SCFA.

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