APOE e4基因型和生活方式与大脑结构表型之间的关联和相互作用
Yating You1, Joey Ward1, Frederick K Ho1
1School of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, G12 8TB, United Kingdom.
Brain communications
|October 27, 2025
概括
健康的生活方式有利于大脑健康,不管阿尔茨海默氏症风险基因如APOE e4. 不利的生活方式和APOE e4基因与较差的大脑结构有关,但它们的影响大多是单独的,而不是组合的.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 公共卫生 公共卫生
背景情况:
- 阿波利波蛋白E (APOE) e4等位基因是阿尔茨海默病的重要遗传风险因素.
- 生活方式因素 (吸烟,饮食,活动) 影响大脑健康,但它们与APOE e4对大脑结构的相互作用尚不清楚.
研究的目的:
- 调查生活方式,APOE e4基因型和大脑结构MRI标志物之间的关联和相互作用.
- 检查整体和个人生活方式因素如何影响与APOE e4状态有关的大脑体积和白质完整性.
主要方法:
- 使用英国生物库MRI数据 (N=24,912) 对非痴呆症参与者的横截面研究.
- 根据遵守指南,生活方式被分为"有利"",适度"和"不利".
- 线性回归分析了生活方式水平,APOE e4和特定因素与大脑体积和白质完整性 (DTI,NODDI) 的关联和相互作用.
主要成果:
- 不利的生活方式独立地与较小的灰质,海马体和总大脑体积有关.
- APOE e4的存在与海马体积较小和白质完整性降低有关.
- 个人不健康的因素,如吸烟和高酒精摄入量与较差的大脑结构标志物相关.
- 在大脑指标上,生活方式水平和APOE e4状态之间的相互作用通常是无意义的.
结论:
- 无论是APOE e4还是不利的生活方式,都与更糟糕的大脑健康有关,主要是通过线性,非协同效应.
- 健康的生活方式对大脑结构的积极影响在不同痴呆症遗传风险概况中是一致的.
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