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空气污染,肺功能,胃食道逆流病和非酒精性脂肪肝疾病之间的因果关系:单变体和多变体孟德尔随机化研究
Runmin Cao1, Honghe Jiang2, Yurun Zhang3
1Jinzhou Medical University Postgraduate Training Base (Jinzhou Central Hospital), Jinzhou, Liaoning, China.
这项研究使用了门德尔的随机化来证实空气污染,肺功能和胃食道逆流症与非酒精性脂肪性肝病 (NAFLD) 有因果关系. 胃食道逆流和2型糖尿病是NAFLD的独立风险因素.
科学领域:
- 环境健康 环境健康
- 胃肠病学 胃肠病学
- 肺部病理学 肺部病理学
- 代谢疾病 代谢疾病
背景情况:
- 空气污染,肺功能,胃食道逆流病 (GERD) 和非酒精性脂肪肝疾病 (NAFLD) 之间的关系尚未得到充分证实.
- 以前的研究受到混因素和潜在的反向因果关系的限制.
- 这项研究旨在通过强大的遗传方法来澄清这些关联.
研究的目的:
- 调查环境暴露 (空气污染),生理因素 (肺功能) 和胃肠道/代谢疾病 (GERD,NAFLD) 之间的因果关系.
- 确定GERD和2型糖尿病是否是NAFLD的独立因果风险因素.
主要方法:
- 采用孟德尔随机化 (MR) 分析,一种使用遗传变异推断因果关系的方法.
- 进行单变量MR来评估个别关联,然后进行施泰格测试以排除反向因果关系.
- 进行多变量MR,包括显著因素和已知的NAFLD风险因素,如2型糖尿病和BMI.
主要成果:
- 单变MR表明颗粒物2.5和GERD与NAFLD之间的积极关联,以及肺功能 (FEV1,FVC) 和NAFLD之间的负相关性.
- 多变量MR证实了GERD (OR=1.537,p=0.011) 和2型糖尿病 (OR=1.261,p<0.001) 与NAFLD之间的直接因果关系.
- 颗粒物2.5和肺功能也显示出与NAFLD的潜在因果关系.
结论:
- 这项MR研究提供了空气污染,肺功能,GERD和NAFLD之间的因果关系的证据.
- 经证实,GERD和2型糖尿病是NAFLD发展的独立因果风险因素.
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