脑电图的节律和不节律的光谱成分以及静止状态的功能连接性可能预测异常性快速眼动睡眠行为障碍中同核蛋白病变的发展
Jimmy Hernandez1,2, Jean-Marc Lina1,3, Jonathan Dubé1,4
1Center for Advanced Research in Sleep Medicine, Research center, CIUSSS du Nord de l'Île-de-Montréal, Montreal, QC, Canada.
Sleep
|March 18, 2024
概括
静止状态EEG光谱功率和功能连接性可以预测异常性快速眼动-睡眠行为障碍 (iRBD) 患者的同核蛋白病变的发展. 这些发现突出了神经退行性疾病早期检测的潜在生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 睡眠医学 睡眠医学
背景情况:
- 异形眼睛快速运动-睡眠行为障碍 (iRBD) 是同核蛋白病变的前兆标记.
- 在iRBD患者中识别同核素病变转化早期生物标志物对于及时干预至关重要.
研究的目的:
- 调查iRBD患者在静止状态EEG光谱功率和功能连接之间的差异,这些患者转换为同核蛋白病变和那些没有转换.
- 为了确定潜在的基于EEG的预测器的synucleinopathy发展.
主要方法:
- 81名iRBD患者接受了基线静止状态EEG,神经心理和神经评估.
- 分析了EEG功率光谱密度和功能连接性 (加权相差指数).
- 基于像素的变换测试比较了组.
主要成果:
- 转换为同核病变的患者 (帕金森病,勒维体痴呆症) 显示出较高的基线相对提达标准功率,更的不节律成分斜率,以及增加的提达节律功率,特别是在部区域.
- 转换的患者也表现出更高的全球β功能连接,但左側部和部区域之间较低的α功能连接.
结论:
- 静态EEG频谱和连接模式揭示了大规模网络中不平衡的刺激到抑制活性.
- 这些EEG变化与iRBD患者随后发生的同核蛋白病变有关.
- 脑电图分析在iRBD中提供了早期检测和风险分层的潜力.
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