在成年后期,APOE4类同胞体的睡眠碎片化较少
bioRxiv : the preprint server for biology
|June 12, 2025
概括
APOE4基因变异的存在与老年人睡眠唤醒的减少有关. 这一发现可能表明APOE4同胞体的兴奋值升高,可能会影响阿尔茨海默病的风险.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 睡眠医学 睡眠医学
背景情况:
- 阿波利波蛋白E (APOE) ε4等位基因是阿尔茨海默氏病 (AD) 的重要遗传风险因素.
- 调节睡眠的大脑区域功能连接的减少与APOE4有关,可能会影响睡眠架构和AD倾向.
- 关于不同APOE基因型的睡眠架构变异的数据有限,特别是关于年龄和性别差异.
研究的目的:
- 研究APOE基因型与睡眠架构之间的关联.
- 为了确定这些关联是否因年龄和性别而异.
主要方法:
- 一项横截面研究利用了3,107名参与者的家庭多睡眠学数据 (睡眠心脏健康研究).
- 参与者根据APOE基因型进行分类:APOE4异胞,APOE4同胞,APOE2载体和APOE3同胞 (参考).
- 睡眠架构参数包括%REM,%N1,%N2,%N3和唤醒指数使用线性回归分析,调整为共变量并探索年龄和性别相互作用.
主要成果:
- 总的来说,睡眠架构参数在全样本,男性和女性的APOE基因型之间是可比的,当不考虑年龄相互作用时.
- 通过APOE基因型相互作用的年龄显示,APOE4类同位素随着年龄的增长而表现出激发的减少 (β=-0.33,p=0.04).
- 具体来说,在70岁及以上的年龄段,APOE4类同胞相比APOE3类同胞,APOE4类同胞的兴奋显著减少.
结论:
- APOE4同胞体的睡眠阶段分布 (REM,N1,N2,N3) 与APOE3同胞体的睡眠阶段分布相似.
- 然而,APOE4同位素在老年人中表现出睡眠唤醒的减少.
- 这表明,在APOE4同胞体中,刺激值可能会升高,特别是在老年人中.
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