Brevibacillus laterosporus BL1, a promising probiotic, prevents obesity and modulates gut microbiota in mice fed a high-fat diet
文献类型： 外文期刊
作者： Weng, Guangying 1 ; Huang, Jian 3 ; Ma, Xianyong 2 ; Song, Min 2 ; Yin, Yulong 1 ; Deng, Dun 2 ; Deng, Jinping 1 ;
作者机构： 1.South China Agr Univ, Guangdong Prov Key Lab Anim Nutr Regulat, Guangzhou, Guangdong, Peoples R China
2.Guangdong Acad Agr Sci, Inst Anim Sci, Guangdong Engn Technol Res Ctr Anim Meat Qual & Sa, Minist Agr & Rural Affairs,Guangdong Prov Key Lab, Guangzhou, Peoples R China
3.Jiangxi Acad Agr Sci, Inst Qual & Safety & Stand Agr Prod Res, Nanchang, Jiangxi, Peoples R China
关键词： Brevibacillus laterosporus; obesity; gut microbiota; lipid metabolism; high-fat diet
期刊名称：FRONTIERS IN NUTRITION （ 影响因子：6.59； 五年影响因子：6.873 ）
ISSN： 2296-861X
年卷期： 2022 年 9 卷
页码：
收录情况： SCI
摘要： ScopeProbiotics are a potential preventive strategy for obesity. However, with discrete efficacy and limited species of probiotics, there is a demand for novel strains with excellent anti-obesity properties. This study aimed to investigate the effects of Brevibacillus laterosporus BL1 on preventing obesity in high-fat diet (HFD)-fed mice. Methods and resultsC57BL/6 male mice were randomly assigned to four groups (n = 10) and fed a control diet, HFD, HFD plus B. laterosporus BL1, and HFD plus supernatant of B. laterosporus BL1, respectively for 8 weeks. The results showed that prophylactic B. laterosporus BL1 treatment reduced body weight gain by 41.26% in comparison to the HFD group, and this difference was accompanied by a reduction in body fat mass and the weight of inguinal white adipose tissues and epididymal white adipose tissue (-33.39%, -39.07%, and -43.75%, respectively). Moreover, the B. laterosporus BL1-mediated improvements in lipid profile, insulin resistance, and chronic inflammation were associated with the regulation of gene expression related to lipid metabolism and enhancement of brown adipose tissue thermogenesis. Particularly, B. laterosporus BL1 intervention significantly improved HFD-induced gut flora dysbiosis, as evidenced by a reverse in the relative abundance of Bacillota and Bacteroidota, as well as an increase in the relative abundance of bacteria that produce short-chain fatty acids (SCFAs), which in turn increased SCFAs levels. ConclusionOur findings found for the first time that B. laterosporus BL1 may be a promising probiotic for prevention of obesity associated with the regulation of gut microbiota.
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