在心房动和痴呆之间存在因果关系的遗传证据:孟德尔的随机化研究
Mingxiao Li1, Chao Jiang1, Yiwei Lai1
1Department of Cardiology Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Center for Cardiovascular Diseases Beijing China.
Journal of the American Heart Association
|August 7, 2023
概括
心房动 (AF) 因果上增加了痴呆症的风险,特别是血管痴呆症. 这种联系是由缺血性中风和低心力输出介导的,这表明AF管理可以预防痴呆症.
科学领域:
- 心血管医学 心血管医学
- 神经学 神经学
- 遗传学 是一个遗传学.
背景情况:
- 观察性研究表明,心房动 (AF) 和痴呆症之间存在相关性,但因果关系尚不清楚.
- 共同的风险因素可能会混观察到的关联.
- 区分因果关系与相关性对于有效的预防策略至关重要.
研究的目的:
- 用孟德尔的随机化方法研究心房 (AF) 对整体痴呆症及其亚型的因果关系.
- 确定AF和痴呆症之间的因果途径中的潜在调解因素.
主要方法:
- 进行了一项全面的双样本门德尔随机化研究.
- 反向方差加权分析和灵敏度分析验证了初级结果.
- 多变量门德尔随机化检查了10个候选调解者.
主要成果:
- 对AF的遗传倾向与整体痴呆 (OR,1.140) 和血管痴呆 (OR,1.350) 的风险增加有关.
- 对于阿尔茨海默氏症,莱维体或前性痴呆症,没有观察到显著的因果关系.
- AF和痴呆症之间的因果关系被缺血性中风和低心脏输出减弱,这表明中介作用.
结论:
- 心房动 (AF) 对痴呆有因果作用,主要是血管痴呆.
- 缺血性中风和低心脏输出是这种因果途径的潜在调解者.
- 需要进一步的研究和临床试验,以探索AF的管理,以预防痴呆症.
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