生物标志物 生物标志物
Pierre Champetier1,2, Claudia Albero1,2, Filipa Raposo Pereira3,4
1Sorbonne Université, Paris Brain Institute (ICM), INSERM, CNRS, UMR-1127, DreamTeam, Paris, France.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
唤醒缓慢波 (wSW) 可能表明早期阿尔茨海默病 (AD) 变化. 较低的wSW密度和更高的振幅与粉样蛋白和神经退行有关,这表明潜在的早期AD生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物 生物标志物
- 阿尔茨海默氏症疾病研究研究
背景情况:
- 缓慢的睡眠波对于清除大脑废物和预防阿尔茨海默病 (AD) 病变至关重要.
- 唤醒缓慢波 (wSW),在唤醒EEG中观察到,随着睡眠剥夺而增加并预测错误.
- 这项研究调查了wSW特征与粉样蛋白和神经退行状态和过渡有关的特征.
研究的目的:
- 根据粉样蛋白 (A) 和神经退行 (N) 状态,比较老年人醒来缓慢波 (wSW) 特性.
- 检查过渡到粉样蛋白或神经退行正性的个体中的wSW特征.
- 探索wSW作为AD病理学的早期生物标志物的潜力.
主要方法:
- 利用了314名患有记忆障碍的老年参与者的EEG记录.
- 在基线和2年随访时使用PET扫描评估粉样蛋白和神经退行状态.
- 在delta和theta频段分析wSW密度和振幅,对共变量进行调整,并对多次比较进行校正.
主要成果:
- 与对照人群相比,在患有粉样蛋白或神经退行症的参与者中观察到较低的 delta wSW 密度.
- 患有粉样蛋白和神经退行症的个体在delta和theta波段中显示出更高的wSW振幅.
- 过渡到粉样蛋白或神经退行性阳性与改变的wSW特征 (更高的振幅或更低的密度) 相关.
结论:
- 唤醒慢波 (wSW) 特性显示了粉样蛋白沉积和神经退行早期EEG生物标志物的潜力.
- wSW指标可以通过简短的静止状态EEG测量,有助于早期识别有风险的个体.
- 这些发现表明wSW可以在认知能力下降之前检测临床前AD变化.
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