生物标志物 生物标志物
Chi Zhang1, Jingping Shi1, Minjie Tian1
1Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
电脑电图 (ECeG) 分析显示,轻度认知障碍 (MCI) 和阿尔茨海默病 (AD) 患者的脑电波模式和连接性发生变化. 这些心电图变化,特别是在三角波段和三角波段,显示出早期发现认知衰退的前途.
科学领域:
- 神经科学是一个神经科学.
- 认知神经学 认知神经学
- 生物标志物发现发现
背景情况:
- 小脑在认知中的作用越来越被认可,但在阿尔茨海默病 (AD) 研究中被忽视.
- 脑小脑参与记忆,学习和执行功能是通过脑小脑电路进行的.
- 目前的阿尔茨海默病诊断主要集中在大脑上,忽视小脑对早期检测的潜在贡献.
研究的目的:
- 为了研究阿尔茨海默病 (AD) 患者在不同疾病阶段的电脑电图 (ECeG) 特性.
- 确定敏感的ECeG生物标志物,用于早期检测轻度认知障碍 (MCI) 和AD.
- 探索小脑电活动和脑-小脑功能连接的变化.
主要方法:
- 招募了31名健康对照 (HC),40名轻度认知障碍 (MCI) 患者和16名阿尔茨海默氏病 (AD) 患者.
- 使用71通道电脑电图 (EEG) 和电脑电图 (ECeG) 进行连续的静止状态记录.
- 分析了心电图的光谱变化以及小脑和大脑之间的功能连接.
主要成果:
- 与HC和AD组相比,在MCI组中观察到小脑中的delta (δ) 带功率减少.
- 在MCI和AD组中,相对于HC,都发现了theta (θ) 带功率的增加.
- 在MCI组中,小脑和前额/尾叶之间的功能连接得到了增强.
结论:
- 电脑心电图 (ECeG) 的三角形和三角形频段的变化显示出可能成为MCI检测的敏感生物标志物.
- 脑小脑功能连接的变化也可能有助于识别早期认知障碍.
- 电心电图分析为早期诊断和了解阿尔茨海默病进展提供了一个有希望的途径.
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