表观遗传年龄与中风,痴呆症和晚年抑郁症之间的双向关系
Cyprien A Rivier1,2, Natalia Szejko3,4, Daniela Renedo5,6
1Department of Neurology, Yale School of Medicine, New Haven, CT, US. Cyprien.rivier@yale.edu.
Nature communications
|February 1, 2025
概括
表观遗传年龄是一种DNA甲基化量度,与大脑健康有关. 诸如中风和痴呆症等疾病加快了生物衰老,更快的表观遗传衰老预测了未来的大脑事件.
科学领域:
- 老年学是指老年学的学科.
- 神经科学是一个神经科学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 时间学年龄是生物衰老的有限指标.
- 基于DNA甲基化的表观遗传年龄,提供了更精确的衰老指标.
- 脑部健康事件,如中风,痴呆症和晚年抑郁症是严重的公共卫生问题.
研究的目的:
- 为了研究表观遗传年龄和大脑健康事件之间的双向关系.
- 为了确定表观遗传衰老加速是否预测未来的大脑健康结果.
- 探索表观遗传年龄作为大脑健康干预的生物标志物的潜力.
主要方法:
- 分析了4018名参与者的DNA甲基化数据,以计算表观遗传年龄.
- 统计建模以评估先前大脑健康事件与表观遗传年龄之间的关联.
- 纵向分析以评估表观遗传年龄加速对未来大脑健康事件的预测价值.
- 门德尔随机化分析以推断因果关系.
主要成果:
- 有脑部健康事件史的参与者在表观遗传学上比他们的时间年龄大4%.
- 在表观遗传年龄中,一个标准偏差的增加与在四年内经历大脑健康事件的几率增加70%有关.
- 门德尔随机化分析支持表观遗传衰老加速和大脑健康事件之间的因果关系.
结论:
- 表观遗传年龄加速与不利的大脑健康结果相关,并预测了这些结果.
- 表观遗传年龄是评估针对大脑健康的干预措施的宝贵生物标志物.
- 这些发现强调了分子衰老在大脑健康和疾病中的作用.
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