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评估肠道微生物群,代谢物和腹腔疾病之间的因果关系:双向的门德尔随机化研究
Ting Li1, Yan Feng1, Chun Wang2
1Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China.
Frontiers in microbiology
|May 30, 2023
概括
门德尔的随机化揭示了某些肠道细菌,如Bifidobacterium,可能会增加腹腔疾病 (CD) 的风险,而其他如Lentisphaerae和Coprobacter可能会减少它. 几种代谢物也显示出与CD的潜在联系.
科学领域:
- 胃肠病学 胃肠病学
- 遗传学 遗传学是一种遗传学.
- 微生物学 微生物学
背景情况:
- 肠道微生物组成和代谢物度的变化越来越多地与腹腔疾病 (CD) 有关.
- 这些肠道因素与CD之间的确切因果关系尚不清楚.
- 门德尔随机化 (MR) 用于调查潜在的因果关系.
研究的目的:
- 为了阐明肠道微生物群和代谢物对乳病 (CD) 的因果关系,使用孟德尔的随机化.
- 识别可能因果影响CD风险的特定细菌种群和代谢物.
- 根据已识别的肠道微生物和代谢关联,探索CD的潜在治疗点.
主要方法:
- 两个样本的门德尔随机化 (MR) 分析是使用全基因组关联研究 (GWAS) 总结级数据进行的,用于肠道微生物群,代谢物和CD.
- 通过确定与暴露 (微生物群,代谢物) 相关的遗传变异及其与结果 (CD) 的关联来评估因果关系.
- 进行了敏感性分析,以确保研究结果的稳定性,并排除性,反向MR分析调查反向因果关系.
主要成果:
- 增加*Bifidobacterium*属的丰富性与更高的CD风险 (OR=1.447,p=0.022) 有遗传关联.
- 类 *Lentisphaerae* (OR=0.798,p=0.034) 和属 *Coprobacter* (OR=0.683,p=0.003) 与较低的CD风险有关.
- 七种代谢物,包括1-oleoylglycerophosphoethanolamine和tryptophan betaine,显示出与CD的暗示性关联,在敏感性分析后,结果被认为是可靠的.
结论:
- 该研究确定了使用MR的特定肠道细菌和代谢物与乳病 (CD) 风险之间的潜在因果关系.
- 研究结果表明,新的细菌属 (*Bifidobacterium*, *Lentisphaerae*, *Coprobacter*) 和几个代谢物是CD的潜在治疗点.
- 对已识别的机制的进一步研究可能会对乳病的病原发生提供更深入的见解.
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