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观察和遗传证据支持心脏自主功能和血压之间的关系
Zekai Chen1, Siqi Wang1, Zhen He1
1Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.
Frontiers in cardiovascular medicine
|July 5, 2023
概括
心脏自主功能,通过心率 (HR) 和心率变化 (HRV) 来衡量,与心压强度 (DBP) 密切相关. 这些发现表明,自主神经系统的不平衡可能会提高DBP.
科学领域:
- 心脏病学 心脏病学
- 自主神经系统研究 自主神经系统研究
- 遗传学 是一个遗传学.
背景情况:
- 心脏自主功能 (心率和心率变化) 与血压之间的关系尚未完全理解.
- 现有的研究缺乏全面的观察和遗传证据来确定因果关系.
研究的目的:
- 调查心率 (HR) 和心率变化 (HRV) 特征和血压 (BP) 之间的观察和遗传关联.
- 通过双样本孟德尔随机化 (2SMR) 检查HR(V) 特性对BP的潜在因果影响.
主要方法:
- 对生命线和英国生物银行队列进行了多变量调整的线性回归分析.
- 使用链接不平衡得分回归来评估HR (V) 特性与BP之间的遗传相关性.
- 采用双样本门德尔随机化 (2SMR) 推断因果关系.
主要成果:
- 观察分析显示,大多数HR (V) 特性与BP有负面关联,而HR则显示出正面关联.
- 遗传相关性与观察结果一致,主要是将HR(V) 特征与腹压血压 (DBP) 联系起来.
- 2SMR分析表明HR(V) 特征对DBP的潜在因果作用,但不是系统血压 (SBP). 增加HR与DBP升高有关,而增加HRV测量 (RMSSD,RMSSDc) 和运动诱导的HR变化与DBP降低有关.
结论:
- 观察和遗传数据都强烈地将心脏自主功能指数与DBP联系起来.
- 对心脏功能增加的交感与副交感神经系统的贡献可能导致DBP升高.
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