在生命早期,肠道代谢和微生物群成熟的动态
Anna-Katariina Aatsinki1,2, Santosh Lamichhane3,4, Heidi Isokääntä1,2,4
1Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland.
iScience
|November 24, 2025
概括
早期的肠道微生物组发育影响婴儿生理学. 微生物代谢物,特别是胆汁酸 (BAs),将肠道细菌与婴儿健康联系起来,特别是在母乳养的婴儿中.
科学领域:
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
- 儿科 儿科 儿科
背景情况:
- 早期的肠道微生物和新陈代谢相互作用对宿主生理学至关重要.
- 微生物代谢物显著影响宿主健康和生理功能.
- 了解这些早期的互动对婴儿发育至关重要.
研究的目的:
- 为了研究肠道代谢物和肠道微生物群组成在一个大的婴儿队列之间的关系.
- 为了确定便代谢物,包括SCFA和BA,如何随着肠道微生物群的成熟而改变.
- 探索在生命早期特定微生物丰度和代谢物水平之间的关联.
主要方法:
- 在多个时间点 (2.5到30个月) 分析了670名儿童的便样本.
- 肠道代谢物的量化:短链脂肪酸 (SCFA),胆汁酸 (BA) 和极性代谢物.
- 肠道微生物群组成和代谢物概况之间的相关性分析.
主要成果:
- 确定了与肠道微生物群发育相关的便代谢物成熟的独特轨迹.
- 发现了微生物丰度和代谢物水平之间的显著关联,特别是在2.5个月大的婴儿中.
- 观察到早期的殖民者如 Bacteroides 和 Bifidobacterium 与二次BA相关,特别是在母乳养的婴儿中.
结论:
- 生命早期的肠道微生物组合与代谢变化,特别是胆汁酸的变化密切相关.
- 这些微生物组-代谢组关联,特别是涉及BA,可能对婴儿有重大生理影响.
- 这些发现强调了早期肠道微生物殖民在塑造婴儿代谢组中的关键作用.
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