抗Helicobacter pylori IgG血清阳性对冠状动脉心脏病和潜在的发病因子之间的关联:孟德尔的随机化研究
Jing Wang1, Tianying Chang2, Yiqiang Wang3
1Changchun University of Chinese Medicine, Changchun, China.
PloS one
|December 9, 2025
概括
这项研究发现了Helicobacter pylori (H. pylori) 感染和冠心病 (CHD) 风险增加之间的因果关系. 杆菌感染可能通过对胰岛素反应和胆固醇水平的影响影响心血管疾病.
科学领域:
- 心血管流行病学心血管流行病学
- 传染病研究 传染病研究
- 遗传流行病学遗传流行病学
背景情况:
- 观察性研究表明,抗Helicobacter pylori (H. pylori) IgG血清阳性和冠状动脉心脏病 (CHD) 之间存在联系.
- 在以前的研究中,混因素使得这种因果关系引起争议.
- 门德尔随机化 (MR) 是一种强大的方法来调查潜在的因果关系.
研究的目的:
- 为了澄清抗H.pyloriIgG血清阳性和CHD之间的因果关系,使用两样本的门德尔随机化 (MR) 分析.
- 探索潜在的介导途径,包括代谢因素,在H. pylori感染和CHD之间的关系.
主要方法:
- 利用全基因组关联研究 (GWAS) 的总结数据,用于暴露 (抗H. pylori IgG血清阳性),结果 (CHD) 和媒介.
- 采用逆方差权衡 (IVW) 作为主要分析方法,并使用加权中位数和MR-Egger回归来补充.
- 进行了敏感性分析,包括留出一个,异质性和质性评估,以确保结果的有效性.
主要成果:
- 抗H. pyloriIgG血清阳性与心脏病风险增加有显著的相关性 (OR=1.003,P=0.048).
- 调解因素显示出显著的关联:胰岛素峰值响应增加 (β=0.214,P=0.026),总自由胆固醇减少 (β=-0.031,P=0.045),腰围减少 (β=-0.073,P=0.027) 和腰与部比率减少 (β=-0.069,P=0.044).
- 没有检测到显著的异质性或质性,这支持了研究结果的稳定性.
结论:
- 这项MR研究提供了强有力的证据,证明抗H. pyloriIgG血清阳性和心血管疾病风险增加之间存在因果关系.
- 观察到的关联可能由更高的胰岛素反应峰值,较低的总自由胆固醇和降低的中心脂肪度 (腰围和腰与部的比率) 介导.
- 需要进一步的研究来证实这些发现,并阐明具体的机制.
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