打和痴呆的风险:一个前性队列和门德尔随机化研究
Yaqing Gao1, Shea Andrews2, Willa Brenowitz3,4
1Nuffield Department of Population Health, University of Oxford, Oxford, UK.
medRxiv : the preprint server for health sciences
|October 24, 2023
概括
矛盾的是,打与痴呆症的风险降低有关,包括阿尔茨海默病 (AD). 这种关联可能是由于反向因果关系,AD可能通过减肥减少打.
科学领域:
- 神经科学是一个神经科学.
- 流行病学 流行病学
- 遗传学 遗传学 是一个
背景情况:
- 打是常见的,随着年龄的增长而增加,但它与痴呆风险的联系仍在争论中.
- 打与阻塞性睡眠呼吸暂停和心脏代谢问题等疾病有关,这可能会增加痴呆风险.
- 相反,打与身体质量指数 (BMI) 相对相关,在晚年可能与较低的痴呆风险有关.
研究的目的:
- 调查打与患痴呆症的风险之间的关联.
- 使用孟德尔随机化 (MR) 探索潜在的因果关系.
主要方法:
- 一项针对450,027名英国生物库参与者的前性队列研究,具有基线打数据.
- 在2022年之前对痴呆症诊断的随访.
- 使用全基因组关联研究数据对阿尔茨海默病 (AD) 和打进行双样本孟德尔随机化 (MR) 分析.
主要成果:
- 打与所有原因痴呆症和AD的风险降低8%有关.
- 这种保护性关联在老年人,APOE ε4载体和较短的随访期中更为明显.
- 核磁共振分析表明打对阿尔茨海默病没有因果关系;然而,对阿尔茨海默病的遗传倾向与减少打有关,可能由BMI调解.
结论:
- 打与较低痴呆风险的观察到的关联很可能是由于反向因果关系.
- 影响阿尔茨海默病的遗传因素可能会导致减少打,可能是通过在痴呆症的前期阶段减肥.
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