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便动力学和在婴儿期发育的肠道微生物组
Mohammed Al-Andoli1, Sarah Schoch2,3, Andjela Markovic1,2
1Department of Psychology, University of Fribourg, Fribourg, Switzerland.
Journal of biological rhythms
|January 20, 2026
概括
婴儿肠道微生物群的多样性随着排便和清醒之间的间隔越长越大. 便时间和婴儿年龄影响微生物组成,突出显示日常节律对肠道健康的影响.
科学领域:
- 微生物学 微生物学
- 发展生物学 发展生物学
- 时间生物学 时间生物学
背景情况:
- 婴儿肠道微生物组对于发育和免疫成熟至关重要.
- 肠道微生物组成在24小时周期内波动,可能会影响宿主睡眠和清醒模式.
- 了解影响婴儿肠道微生物群时间的因素对于其作为健康指标的使用至关重要.
研究的目的:
- 为了研究便动态,睡眠压力,食时间和婴儿肠道微生物组成之间的关系.
- 确定行为和生理因素如何影响婴儿肠道微生物组的发展.
- 确定影响微生物多样性,丰富性,均性和丰富性的基于时间的因素.
主要方法:
- 分析了198名健康婴儿 (3-31个月) 的便样本.
- 评估微生物多样性,丰富性,均性和丰富性.
- 微生物数据与排便间隔,采样时间,睡眠压力和食时间的相关性.
主要成果:
- 更长的排便间隔与增加的微生物多样性,均性和丰富性相关.
- 便采样时间和婴儿年龄影响了微生物组成,日间波动随着年龄的增长而稳定.
- 较长的清醒时间与较年轻婴儿的微生物多样性更高有关.
- 观察到的特定类型的转变:蛋白质细菌减少和动态细菌增加,间隔较长;动态细菌增加,采样较晚;细菌菌体减少,禁食时间较长;Firmicutes减少,清醒时间较长的趋势.
结论:
- 基于时间的因素,包括便动态和睡眠压力,显著影响婴儿肠道微生物组合.
- 随着婴儿的成熟,婴儿的肠道微生物组成变得更加稳定,不受白天节律的影响.
- 行为和生理节奏在塑造婴儿肠道微生物群中发挥着关键作用.
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