较低的血红蛋白水平与更高的巴罗反射灵敏度和心率变化相关
Joona Tapio1, Antti M Kiviniemi2, Juha Perkiömäki2
1Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland.
较低的血红蛋白 (Hb) 水平与中年成人更好的心率可变性 (HRV) 和气息反射敏感性 (BRS) 有关. 这表明Hb可能表明心脏代谢风险,独立于其他因素.
科学领域:
- 心血管生理学心血管生理学
- 自主神经系统功能 自主神经系统功能
- 血液学 血液学 血液学
背景情况:
- 心率变化 (HRV) 和气流反射灵敏度 (BRS) 是预测心脏和代谢疾病风险的非侵入性标志物.
- 血红蛋白 (Hb) 水平,即使在正常范围内,也可能影响心血管自主功能.
- 以前的研究表明Hb水平与心脏代谢风险之间存在联系.
研究的目的:
- 为了研究血红蛋白 (Hb) 水平在正常变化和心率变化 (HRV) 和气息反射灵敏度 (BRS) 的测量之间关系.
- 为了确定Hb水平是否独立与中年成人心脏自主功能相关.
主要方法:
- 从OPERA队列中对733名芬兰成年人 (41-59岁) 进行横截面研究.
- 在标准化的45分钟时间内测量HRV和巴罗反射灵敏度 (BRS).
- 在芬兰参考间隔内分析血红蛋白 (Hb) 水平,分为三级.
- 统计分析包括分步后勤回归,调整年龄,性别,吸烟和代谢因素等共变量.
主要成果:
- 最低Hb三位数 (平均Hb 135 g/L) 的受试者与最高Hb三位数 (平均Hb 152 g/L) 相比,表现出更高的BRS,更长的R-R间隔 (RRi),RRi的标准偏差更大 (SDNNindex) 和更高的高频 (HF) 功率.
- 较低的Hb水平与BRS,SDNNindex和HF功率独立且负相关,即使经过对共变量进行调整.
- 这些关联表明,在正常范围内Hb水平较低的个体中,心脏自主功能更健康.
结论:
- 在正常范围内较低的血红蛋白 (Hb) 水平独立地与增强的心脏自主功能有关,其特点是更好的腹射反应灵敏度和心率可变性.
- 这些发现表明,Hb水平可以作为评估长期心脏代谢疾病风险的有价值指标.
- 结果强调了在评估心血管健康的背景下考虑Hb水平的重要性.
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