在健康个体中,随着年龄的增长,自发巴罗反射功能的降低与性别差异有关
Andy Schumann1, Yubraj Gupta1, Denis Gerstorf2
1Lab for Autonomic Neuroscience, Imaging and Cognition, Department for Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany.
American journal of physiology. Heart and circulatory physiology
|November 10, 2023
概括
随着年龄的增长,自发性巴罗反射敏感度 (BRS) 降低,但这种下降在男性和女性之间有所不同. 我们的发现揭示了整个生命周期内巴罗反射功能的不同变化模式,这对心血管健康有影响.
科学领域:
- 生理学 生理学 生理学
- 心血管科学 心血管科学
- 老年学是一门学科.
背景情况:
- 鼓动反射对于响应血压变化而快速调整心率至关重要.
- 已知随着年龄的增长,自发性巴罗反射灵敏度 (BRS) 的下降,但性别差异研究不足.
- 了解这些性别差异对于心血管健康和预防策略至关重要.
研究的目的:
- 为了研究自发巴罗反射功能标志物的与年龄相关的变化中的性别差异.
- 在健康的男女中,分析不同年龄组的自发巴罗反射灵敏度.
主要方法:
- 在五个年龄组的980名健康人群中记录了心血管信号.
- 通过时间域 (斜坡) 和频率域 (LF-α,HF-α) 分析评估自发巴罗反射功能.
- 利用一般线性模型来分析年龄和性别相互作用对巴罗反射指标的影响.
主要成果:
- 在所有巴罗反射功能指标上观察到年龄和年龄×性别相互作用的显著影响.
- 中年女性 (30-39岁) 显示比男性更高的BRS (心动脉倾斜,LF-α,HF-α).
- 老年男性 (>60岁) 与老年女性相比,表现出较高的LF-α和斜率.
结论:
- 巴罗反射功能在整个生命周期中,男性的衰退较早,但比女性的衰退更慢.
- 观察到的性别差异可能与性激素水平与年龄相关的变化有关.
- 研究结果强调了在心血管风险评估和预防方面需要采用性别特异性的方法.
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