使用机器学习量化心血管自主衰老
Andy Schumann1, Yubraj Gupta1, Maria Geisler1
1Lab for Autonomic Neuroscience, Imaging and Cognition (LANIC), Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany.
American journal of physiology. Heart and circulatory physiology
|October 25, 2025
概括
心血管自主年龄 (CAA) 差距,一种新的机器学习指标,揭示了心血管风险高的个体的加速衰老. 这种标志物可能有助于早期检测和监测生理衰老和心血管健康.
科学领域:
- 心血管生理学心血管生理学
- 生物标志物 生物标志物
- 机器学习在医学中的应用
背景情况:
- 精准医学和衰老研究越来越多地利用机器学习 (ML).
- 自主心血管功能为生理衰老提供了洞察力.
- 现有的指标可能无法完全捕捉与年龄有关的心血管衰退.
研究的目的:
- 介绍心血管自主年龄 (CAA) 差距,这是一个基于ML的新型指标.
- 量化ML估计的生物年龄和时间年龄之间的偏差.
- 评估CAA差距与心血管风险的关联.
主要方法:
- 从1060名健康个体的高分辨率心电图和连续血压记录中得出29个自主指数.
- 在879名参与者身上训练了一种高斯过程回归模型,以估计生物年龄 (CAA).
- 计算了CAA差距作为CAA和时间年龄之间的差异,在风险分层队列中验证.
主要成果:
- 高心血管风险 (CVR) 组与低心血管风险 (-1年) 组相比,CAA差距显著增加 (+11年).
- CAA与弗雷明汉风险评分 (r=0.42,P<0.001) 有积极的相关性.
- 在高CVR组中,在风险值中持续观察到CAA的升高.
结论:
- 该CAA差距作为心血管风险和加速生理衰老的敏感和可解释的指标.
- 这种新型指标具有早期检测和对心血管健康的纵向评估的潜力.
- 基于ML的自主标记器为了解衰老过程提供了新的途径.
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