基因预测的铁状况与24种胃肠道疾病和肠道微生物群的关联:孟德尔的随机化研究
Tao Su1,2, Xiang Peng1,2, Ying Gan3
1Department of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Frontiers in genetics
|August 22, 2024
概括
这项研究揭示了铁状况与胃肠道疾病,特别是肝脏疾病之间的潜在因果关系. 铁含量似乎也会影响肠道微生物群的组成,影响消化系统的健康.
科学领域:
- 胃肠病学 胃肠病学
- 代谢健康 代谢健康
- 人类遗传学 人类遗传学
背景情况:
- 铁状况与胃肠道疾病和肠道微生物群有关.
- 混因素可能会使这些关联变得复杂.
- 研究因果关系对于理解疾病机制至关重要.
研究的目的:
- 通过使用孟德尔随机化 (MR) 来调查铁状况与胃肠道疾病和肠道微生物群的因果关系.
- 检查血液中铁含量,内脏铁含量和缺铁性贫血对24种胃肠道疾病和肠道微生物群变化的影响.
主要方法:
- 使用孟德尔随机化 (MR) 与铁状况的遗传仪器.
- 选择了与铁状况相关的独立遗传变异 (p < 5 × 10-6).
- 从大规模的全基因组关联研究中获得了胃肠道疾病和肠道微生物群的遗传关联 (英国生物银行,FinnGen等). ) 的情况.
主要成果:
- 较高的铁和费里水平与增加的肝癌风险相关.
- 转激素和与降低腹病风险有关,但增加了非酒精性脂肪性肝病 (NAFLD) 和肝癌风险.
- 铁状况和肠道微生物群丰富之间观察到关联,其中一些受酒精和吸烟的影响. 铁状况,肠道微生物群和肠道疾病之间没有发现中介作用.
结论:
- 提供了铁状况与胃肠道疾病,特别是肝脏疾病之间的潜在因果关系的证据.
- 表明铁的状态会影响肠道微生物群的组成.
- 强调铁代谢,肠道健康和消化系统疾病之间的复杂相互作用.
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