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分析肠道微生物群,血液代谢物和COVID-19易感性之间的因果关系:孟德尔的随机化研究

Xiao-Yan Yao^1,2, Yan-Hua Zhang^1,2, Yu-Wei Weng²

¹The School of Public Health, Fujian Medical University, Fuzhou, China.

|April 7, 2025

概括

这项研究揭示了特定肠道细菌与COVID-19易感性之间的因果关系,这种因果关系是由血代谢物如Sebacate和Acetoacetate介导的. 这些发现强调了通过调节肠道微生物群来调节COVID-19的潜在治疗点.

科学领域:

遗传学和微生物学
代谢学代谢学代谢学
传染病流行病学传染病流行病学

背景情况:

肠道微生物群和血液代谢物显著影响COVID-19的进展和结果.
肠道微生物组,代谢物和COVID-19易感性之间的确切因果关系和潜在机制在很大程度上仍未被探索.

研究的目的:

使用孟德尔随机化 (MR) 调查肠道微生物群组成,血液代谢物水平和COVID-19易感性之间的因果关系.
为了确定潜在的血液代谢物,这些代谢物调解肠道微生物群对COVID-19风险的影响.

主要方法:

两个样本的门德尔随机化 (MR) 分析使用大规模的全基因组关联研究 (GWAS) 总结统计数据进行了肠道微生物群,血液代谢物和COVID-19易感性.
双向MR探索了微生物群和COVID-19之间的因果关系,而两步MR确定了介导代谢物.
逆方差加权 (IVW) 方法是主要的,对强度进行灵敏度分析.

主要成果:

在三种肠道微生物类型和34种血液代谢物之间确定了重要的因果关联,涉及COVID-19易感性.
非氧化酸途径与降低酸盐水平有关,而Parabacteroides goldsteinii与降低酸水平有关.
酸 (C10-DC) 显示出负相关性,而酸与COVID-19易感性呈现出正相关性,调解效应分别为15.8%和31.7%.

结论:

这项MR研究提供了特定肠道细菌与COVID-19易感性之间的因果关系的证据,可能由Sebacate和Acetoacetate介导.
这些发现表明,针对特定代谢物的肠道微生物群调节可能是管理COVID-19风险的策略.
在更大的流行病学研究中进一步验证是有必要的,以确认这些因果途径.

关键词:

在 COVID-19 疫情中,门德尔的随机化分析分析.血液中的代谢产物.我们的肠道微生物.调解效应是介导作用.

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