期刊
FRONTIERS IN NUTRITION
卷 8, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fnut.2021.634897
关键词
probiotics; pre-biotics; post-biotics; gut microbiota; immune system
资金
- Science and Technology Innovation Project of Colleges and Universities of Shanxi Province [2019L0074]
The human gastrointestinal tract contains a complex microbial community that interacts closely with the mucosal immune system. The gut microbiota plays a significant role in maintaining host health by providing various nutrients, regulating energy balance, modulating immune response, and defending against pathogens. Therefore, maintaining a favorable balance of gut microbiota through modulating bacterial composition, diversity, and activity is beneficial for host health.
The human gastrointestinal tract harbours a complex microbial community, which interacts with the mucosal immune system closely. Gut microbiota plays a significant role in maintaining host health, which could supply various nutrients, regulate energy balance, modulate the immune response, and defence against pathogens. Therefore, maintaining a favourable equilibrium of gut microbiota through modulating bacteria composition, diversity, and their activity is beneficial to host health. Several studies have shown that probiotics and pre-biotics could directly and indirectly regulate microbiota and immune response. In addition, post-biotics, such as the bioactive metabolites, produced by gut microbiota, and/or cell-wall components released by probiotics, also have been shown to inhibit pathogen growth, maintain microbiota balance, and regulate an immune response. This review summarises the studies concerning the impact of probiotics, pre-biotics, and post-biotics on gut microbiota and immune systems and also describes the underlying mechanisms of beneficial effects of these substances. Finally, the future and challenges of probiotics, pre-biotics, and post-biotics are proposed.
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