Synergistic defecation effects of Bifidobacterium animalis subsp. lactis BL-99 and fructooligosaccharide by modulating gut microbiota

Synergistic defecation effects of Bifidobacterium animalis subsp. lactis BL-99 and fructooligosaccharide by modulating gut microbiota

IntroductionSynbiotics have revealed the possibility of improving constipation through gut microbiota. The synergistic efficacy of Bifidobacterium animalis subsp. lactis BL-99 (BL-99) and fructooligosaccharide (FOS) on constipation have not been investigated.MethodsLoperamide-induced constipated mic...

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Main Authors: Qi Zhang, Wen Zhao, Jie Luo, Shaoqi Shi, Xiaokang Niu, Jian He, Yicheng Wang, Zhaozhong Zeng, Qiuyue Jiang, Bing Fang, Juan Chen, Yixuan Li, Fuqing Wang, Jingjing He, Jie Guo, Ming Zhang, Liwei Zhang, Shaoyang Ge, Wei-Lian Hung, Ran Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Immunology
Subjects:
Bifidobacterium animalis subsp. lactis BL-99
fructooligosaccharide
gut microbiota
constipation
serum inflammatory factors
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2024.1520296/full
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Summary:IntroductionSynbiotics have revealed the possibility of improving constipation through gut microbiota. The synergistic efficacy of Bifidobacterium animalis subsp. lactis BL-99 (BL-99) and fructooligosaccharide (FOS) on constipation have not been investigated.MethodsLoperamide-induced constipated mice model was established to explore the effect of BL-99, FOS, and BL-99+FOS on changes of defecation-related parameters, gut microbiota and metabolites.Results and discussionThe results showed that BL-99, FOS, and BL-99+FOS each alleviated constipation, with the synbiotic showing significant efficacy in the first black stool defecation time, fecal number, fecal weight, and the gastrointestinal transit rate (P < 0.05). Additionally, significant increased in serum 5-HT and IL-10 were observed in the BL-99+FOS group, alongside an increased relative abundance of Lachnospiraceae_NK4A136_group, Blautia, and Clostridium sensu stricto 1, while significantly reducing the relative abundance of Alistipes and Bacteroides. These changes facilitated alterations in short-chain fatty acids (SCFAs) metabolism, and were closely associated with the expression of genes related to the 5-HT pathway and the modulation of serum inflammatory factors. This study provides a theoretical basis for BL-99 and FOS synbiotics to improve constipation by regulating the gut microbiota and metabolites.
ISSN:1664-3224

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