循环维生素水平调解了肠道微生物群和胆囊炎之间的因果关系:一个双步双向的门德尔随机化研究
Changhong Miao1,2, Lu Xiao1,2, Xinyi Xu1,2
1First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Frontiers in nutrition
|October 12, 2023
概括
特定的肠道细菌增加胆囊炎的风险,维生素D水平调解了这种联系. 这项研究通过管理肠道微生物群组成,为预防胆囊炎提供了新的途径.
科学领域:
- 肠道微生物组研究研究
- 营养流行病学 营养流行病学
- 胃肠道健康 胃肠道健康
背景情况:
- 肠道微生物群和胆囊炎 (胆囊炎症) 之间的相互作用尚未完全理解.
- 循环维生素水平在调节这种关系中的作用需要进一步研究.
研究的目的:
- 调查循环维生素水平是否调解肠道微生物群和胆囊炎之间的因果关系.
- 采用双步双向的门德尔随机化方法来探索这些关系.
主要方法:
- 使用链接不平衡得分回归 (LDSC) 来对维生素GWAS数据进行遗传相关性分析.
- 进行了双步门德尔随机化分析,以评估肠道微生物群,维生素水平和胆囊炎之间的因果关系.
- 采用了反向方差加权方法和灵敏度分析 (cML-MA,反向MR) 来确定稳定性.
主要成果:
- *RuminococcaceaeUCG003*的增加与更高的胆囊炎风险和较低的维生素D水平有关.
- 循环维生素D水平的降低与Bonferroni纠正后胆囊炎风险的增加显著相关.
- 维生素D被确定为潜在的调解剂,解释了5.5%的肠道微生物群与胆囊炎的关联.
结论:
- 肠道微生物丰富度增加与胆囊炎易感性增加有关,由循环维生素D水平介导.
- 研究结果表明,通过调节肠道微生物群,有可能预防胆囊炎.
- 需要进一步的大规模试验来证实这些因果关系.
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