[DNA甲基化钟与与肥胖相关的指标之间的关联:一项纵向双胞胎研究]
1Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China.
概括
像BMI这样的肥胖指标与加速的DNA甲基化衰老相关. 较高的基线肥胖可能会随着时间的推移增加表观遗传衰老,这表明长期的健康影响. 共同的遗传或环境因素可能会混这些关联.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 衰老研究研究 衰老研究
- 代谢健康 代谢健康
背景情况:
- 肥胖是一个日益严重的全球健康问题,与各种慢性疾病有关.
- DNA甲基化时钟是生物衰老的生物标志物.
- 了解肥胖和表观遗传衰老之间的相互作用对于公共卫生至关重要.
研究的目的:
- 为了研究肥胖指标与DNA甲基化时钟加速之间的关联.
- 分析肥胖和表观遗传衰老的时间序列.
主要方法:
- 利用了中国国家双胞胎登记 (2013年和2017-2018年) 的数据.
- 使用Illumina 450K和EPIC珠芯片测量了DNA甲基化.
- 计算了DNA甲基化时钟 (GrimAA,PCGrimAA,DunedinPACE) 并使用混合效应和交叉滞后面板模型分析了相关性.
主要成果:
- 肥胖指标 (体重,BMI,腰围,WHR,WHtR) 与DunedinPACE正相关,WHtR显示出最强的关联.
- 体重和BMI与GrimAA和PCGrimAA有负相关性.
- 交叉滞后模型表明,基线肥胖可能会随着时间的推移加速表观遗传衰老 (GrimAA,PCGrimAA,DunedinPACE),尽管对内分析显示没有显著的相关性.
结论:
- 肥胖指标与DNA甲基化时钟加速有关.
- 肥胖可能会影响表观遗传衰老,可能导致长期健康影响.
- 双胞胎中的共同遗传或环境因素可能会混观察到的关联.
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