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饮食选择性影响在人类肠道微生物群中表现出来,从物种组成到菌株遗传构成

Kun D Huang¹, Mattea Müller², Pavaret Sivapornnukul³

¹Department of Microbial Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.

|December 14, 2024

概括

饮食塑造了人类肠道微生物群的组成和菌株级遗传多样性. 特定的饮食,如食肉动物,可以导致某些肠道细菌的更强的遗传选择.

科学领域:

微生物学微生物学
营养科学营养科学
基因组学就是基因组学.

背景情况:

人的肠道微生物群在整体健康中起着至关重要的作用.
饮食是已知的重要影响肠道微生物组成的因素.
了解饮食与微生物群的相互作用是个性化营养和健康的关键.

研究的目的:

调查不同长期饮食模式 (素食主义者,柔性主义者,杂食者) 对人类肠道微生物群的影响.
分析饮食对微生物群落组成,功能表和菌株级遗传变异的影响.
为了确定不同饮食对肠道物种施加的选择性压力的分子特征.

主要方法:

对从健康个体获得的猎枪元基因组测序数据的分析.
详细的饮食调查和血液生物标志物的收集.
在素食主义者,柔性主义者和食肉群体中对肠道微生物群的比较分析.

主要成果:

饮食模式显著改变了细菌物种的丰富性,但对整体微生物功能的影响很小.
饮食影响了菌株水平上的微生物功能,与遗传变异相关.
富含全食动物饮食的物种表现出更强的积极选择,以Odoribacter splanchnicus中的铁调节基因为例.

结论:

饮食模式对肠道微生物物种及其遗传构成施加选择性压力.
肠道微生物群中的菌株级遗传多样性受到长期饮食习惯的影响.
这些发现提供了对人类肠道微生物群的饮食驱动演变的见解.

关键词:

CP: 微生物学微生物学饮食饮食饮食饮食的功能性功能.遗传变异遗传变异遗传变异在这里,我们可以看到子子.我们的微生物群.阳性选择是一种积极的选择.一把枪的元基因组学.菌株多样性菌株多样性

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