血管相关的生物压力,DNA甲基化,静态负荷和特定领域的认知:一个集成的机器学习和因果推理方法
Reem Waziry1, Olajide A Williams2, Henning Tiemeier3
1Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, USA. reemwaziry@gmail.com.
BMC neurology
|April 24, 2025
概括
与血管相关的生物压力和DNA甲基化显著介导血管疾病对老年人认知功能的影响. 这些因素为早期发现认知衰退提供了新的见解.
科学领域:
- 老年学是一门学科.
- 神经科学是一个神经科学.
- 生物标志物发现发现
背景情况:
- 老龄化人口面临着诸如中风和高血压等多种血管疾病,这些疾病往往同时发生.
- 这些结合的血管问题对老年人的认知健康构成重大挑战.
- 一种新的生物标志物,与血管相关的生物压力,被提议用于准确早期检测与年龄相关的认知变化.
研究的目的:
- 调查血管相关生物压力的调解作用,基于DNA甲基化的生物衰老 (GrimAge2) 和全静电负荷.
- 了解它们对血管疾病和认知领域 (全球认知,情节性记忆,执行功能) 之间的关系的影响.
- 在成年年龄段的代表性样本中分析这些因素.
主要方法:
- 使用了来自MIDUS刷新样本的数据.
- 使用多种生物标志物 (例如BMI,血压,HbA1c) 量化血管相关的生物压力.
- 用GrimAge2评估基于DNA甲基化的生物年龄,并从各种生理标志物计算全静电负荷得分.
- 采用LASSO和四向分解建模来分析调解效应.
主要成果:
- 与血管相关的生物压力显著调解了血管疾病与全球认知 (0.60,P=0.01) 和执行功能 (0.53,P=0.002) 之间的关联.
- DNA甲基化 (GrimAge2) 也调解了全球认知 (0.27,P=0.002) 和执行功能 (0.20,P=0.002) 的这些关系.
- 静态负荷显示中介作用较小 (例如,全球认知为0.10,P=0.08).
结论:
- 与血管相关的生物压力和DNA甲基化是将血管疾病与认知功能联系起来的关键媒介.
- 这些生物标志物与静电负荷一起,在全球认知和执行功能的下降中发挥着作用.
- 这些发现支持这些新型生物标志物的实用性,以了解认知衰老.
关键词:
这是一个ADRD.年龄跨度 年龄跨度.静态负荷的全静态负荷.生物压力是生物压力.生物标志物 生物标志物认知 认知是一种认知.通过DNA甲基化.情节性记忆是一种情节性记忆.执行职能 执行职能 执行职能血管血管 血管血管是什么意思更多相关视频
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