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Bacillus coagulans R11 maintained intestinal villus health and decreased intestinal injury in lead-exposed mice by regulating the intestinal microbiota and influenced the function of faecal microRNAs

文献类型： 外文期刊

作者： Xing, Si-Cheng 1 ; Huang, Chun-Bo 1 ; Mi, Jian-Dui 1 ; Wu, Yin-Bao 1 ; Liao, Xin-Di 1 ;

作者机构： 1.South China Agr Univ, Coll Anim Sci, Guangzhou 510642, Guangdong, Peoples R China

2.Minist Agr, Guangdong Prov Key Lab Agroanim Genom & Mol Bread, Guangzhou 510642, Guangdong, Peoples R China

3.Minist Agr, Key Lab Chicken Genet Breeding & Reprod, Guangzhou 510642, Guangdong, Peoples R China

4.Natl Local Joint Engn Res Ctr Livestock Breeding, Guangzhou 510642, Guangdong, Peoples R China

关键词： Bacillus coagulans R11; Lead; Microbiota structure; microRNA; Intestinal villus

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）

ISSN： 0269-7491

年卷期： 2019 年 255 卷

页码：

收录情况： SCI

摘要： Lead contamination is an environmental problem, especially in developing countries; due to the nondegradable characteristics of lead, it is easily deposited in human and animal bodies by the food chain. Probiotics are regarded as a good tool to remove lead ions in the intestine and maintain gut health conditions, but previous studies failed to elucidate the relationship among probiotics, the host and the gut microbiota. In the present study, B. coagulans R11 was employed as the "lead removal tool" in lead-exposed mouse, and the effects of B. coagulans R11 on intestinal cells, the microbiota and faecal microRNAs were tested. The results indicated that B. coagulans R11 had no negative effects on mouse intestine model cells and helped keep cells in a normal proliferation ratio and reduce the reactive oxygen species and apoptosis ratios under lead exposure conditions. An in vivo mouse experiment also showed that B. coagulans R11 feeding could reduce the intestinal villi damage caused by lead through adjusting the microbiota structure and function, such as increasing the genus abundance of Akkermansia and Alistipes, decreasing the genus abundance of Alloprevotella, Lachnospiraceae, Parabacteroides and Ruminiclostridium, and keeping the protein dltD existing. Host faecal microRNAs may be influenced by lead and B. coagulans R11, which may change the microbiota structure. Thus, B. coagulans R11 has the potential to be developed and considered as the probiotic that protects the host gut against villi damage and gut microbiota structure and function disorders during lead exposure. (C) 2019 Elsevier Ltd. All rights reserved.

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