在轻度认知障碍患者中,夜间发性排泄的患病率和局部化
Rosario Ciliento1, Klevest Gjini1, Kevin Dabbs1
1Department of Neurology, University of Wisconsin-Madison, Madison, WI 53726, USA.
Brain communications
|November 15, 2023
概括
患有轻度认知障碍的患者表现出大脑过度兴奋的早期迹象,表明潜在的临床前型活动. 这一发现为了解阿尔茨海默病的进展提供了新的途径.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 发病学 (Epileptology) 是一个专业的学科.
背景情况:
- 阿尔茨海默病 (AD) 和轻度认知障碍 (MCI) 与发作风险增加和皮质过激动性有关.
- 抗发作药物可能会减缓患有EEG证实过度兴奋症的患者的AD进展.
- 过度兴奋的出现以及在阿尔茨海默病中检测间接事件的最佳诊断方法仍然不清楚.
研究的目的:
- 为了调查患有amnestic轻度认知障碍 (aMCI) 的个体中形异常的患病率.
- 探索AD进展的潜在早期电生理学特征.
- 为了将EEG发现与神经成像和神经心理学评估相关联.
主要方法:
- 在13名aMCI患者和20名健康对照中进行了256个通道的夜间高密度脑电图 (EEG).
- 对所有参与者进行了磁共振成像 (MRI) 和全面的神经心理评估.
- 电子源重建被用于精确的尖峰定位.
主要成果:
- 与对照组 (10%) 相比,aMCI患者 (46%) 的尖端患病率显著更高 (P = 0.035).
- 间隔事件的特征是低幅度的时间尖峰,主要在非快速眼动睡眠期间观察到.
- 在aMCI分组与没有尖峰之间没有发现认知表现或神经成像发现 (缩) 的显著差异,尽管注意到了记忆趋势.
结论:
- 无情的轻度认知障碍患者表现出早期EEG过度兴奋的迹象,表明临床前形表型.
- 这些发现,如果经过纵向验证,可以作为aMCI及其进展的早期标志物.
- 需要进一步的研究来证实这些电生理学特征及其临床含义.
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