确定久坐不动行为和心力衰竭之间的因果关系:来自孟德尔随机化研究和调解分析的见解
Xifeng Zheng1, Manqi Liu1, Zijun Wu1
1Department of Cardiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
Clinical cardiology
|August 29, 2023
概括
增加电视屏幕时间与心力衰竭 (HF) 的更高风险有关. 这项门德尔的随机化研究证实了久坐不动行为和HF发育之间的因果关系.
科学领域:
- 心血管疾病流行病学
- 遗传流行病学遗传流行病学
- 公共卫生 公共卫生
背景情况:
- 观察性研究表明,身体不活动与心力衰竭 (HF) 风险增加之间存在联系.
- 久坐不动行为 (SB) 是一个日益严重的公共卫生问题.
- 在SB和HF之间的因果关系需要有力的调查.
研究的目的:
- 使用孟德尔随机化 (MR) 调查静坐行为 (SB) 和心力衰竭 (HF) 之间的因果关系.
- 为了确定特定的久坐行为,如电视屏幕上的时间,是否会增加高血压风险.
主要方法:
- 利用全基因组关联研究 (GWAS) 数据来识别与SB表型 (电视时间,电脑使用,驾驶) 相关的单核酸多态 (SNP) 作为工具变量 (IV).
- 采用逆变量权重 (IVW) 作为主要的MR分析方法,并补充了MR-Egger回归,加权中位数和最大概率模型.
- 通过使用Cochran's Q,MR-Egger拦截和MR-PRESSO测试进行敏感性分析,以评估异质性和水平性,确保结果的可靠性.
主要成果:
- IVW模型表明,增加的电视屏幕时间和对HF的遗传敏感性之间存在显著的正相关性 (OR 1.418,95% CI 1.182-1.700).
- 这些发现得到了加权中位数和最大概率模型的支持,从而加强了相关性.
- 敏感性分析证实,尽管存在一些异质性,但没有显著的水平性,这支持了研究的结论.
结论:
- 这项孟德尔随机化研究提供了证据,表明增加电视屏幕时间可能会导致个人患上心力衰竭.
- 减少长时间的静坐屏幕时间可能是预防HF的潜在策略.
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