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一个基于血液学的时钟,源自老鼠长度衰老研究,用于估计生物年龄
Jorge Martinez-Romero1,2, Maria Emilia Fernandez1, Michel Bernier1
1Translational Gerontology Branch, National Institute on Aging, Baltimore, MD, USA.
Nature aging
|October 18, 2024
概括
研究人员开发了一种实用的血液测试来预测生物年龄,发现小鼠预测年龄和时间年龄之间的更大的"衰老差距"与增加的死亡率和脆弱性有关.
科学领域:
- 老年学是一门学科.
- 生物标志物 生物标志物
- 血液学 血液学 血液学
背景情况:
- 衰老的分子生物标志物对广泛的临床应用具有挑战性.
- 血液学标记为老化评估提供了一个潜在的实用替代方案.
研究的目的:
- 使用常规血液学标记器开发一个衰老的时钟.
- 评估预测血液年龄,时间年龄和老化结果在小鼠之间的关联.
主要方法:
- 利用了两项研究中的2,562只小鼠的纵向数据.
- 收集了八个血液学变量和两个代谢指数.
- 采用深度神经网络来预测血液年龄.
主要成果:
- 血液年龄预测显示与时间年龄有显著的相关性.
- 发现衰老差距与死亡风险/脆弱性之间存在积极的关联.
- 血小板是深度神经网络发现的最强的年龄预测因素.
结论:
- 基于血液测试的衰老时钟可以成为一个实用的临床工具.
- 衰老差距可能表明晚年衰老和增加的健康风险.
- 血液学标记为个体衰老的变化提供了有价值的见解.
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