睡眠,24小时活动节奏,以及随后的粉样β病理学
Phuong Thuy Nguyen Ho1, Sanne J W Hoepel2, Maria Rodriguez-Ayllon2
1Department of Radiology and Nuclear Medicine, Erasmus University Medical Centre, Rotterdam, the Netherlands.
JAMA neurology
|June 24, 2024
概括
碎片化的24小时活动节奏,而不是睡眠障碍,预测了成人更高的粉样β (Aβ) 沉积. 这种关联在具有阿波利波蛋白E ε4 (APOE4) 基因型的个体中更为强烈,这表明阿尔茨海默病 (AD) 的潜在可修改风险因素.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 睡眠医学 睡眠医学
背景情况:
- 睡眠障碍在老年人中很普遍,并且与阿尔茨海默病 (AD) 病理学有关,特别是粉样β (Aβ) 沉积.
- 识别特定的睡眠和24小时活动节律障碍对于有效的AD预防策略至关重要.
- 在这种关系中,阿波利波蛋白E ε4 (APOE4) 基因型的作用需要进一步研究.
研究的目的:
- 调查24小时活动节奏和睡眠模式与非痴呆成年人Aβ沉积之间的关联.
- 为了确定是否活动和睡眠中断先于Aβ沉积.
- 评估APOE4基因型对这些关联的影响.
主要方法:
- 一项使用鹿特丹研究数据的观察性队列研究.
- 包括319名没有痴呆症的参与者,他们接受了Aβ正子发射断层扫描 (PET) 和APOE基因定型.
- 通过动图学评估客观睡眠和24小时活动节奏,以及自我报告的睡眠,血生物标志物和Aβ PET负担,平均随访时间为7.8年.
主要成果:
- 较高的日内变异性,表明24小时活动节奏碎片化,与随访时Aβ PET负担增加有关.
- 与非载体相比,APOE4载体中这种关联明显更强.
- 客观或自我报告的睡眠测量和Aβ沉积之间没有发现显著的关联.
结论:
- 24小时活动节律的碎片化与社区生活的成年人,特别是APOE4携带者,随后的Aβ负担增加有关.
- 休息活动碎片化可能代表阿尔茨海默病的可修改风险因素.
- 需要进一步的研究来探索针对AD预防活动节律规律的干预措施.
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