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大脑皮层神经生理学标志的肌缩性侧面硬化症

Michael Trubshaw^1,2, Chetan Gohil^1,3, Katie Yoganathan^1,2

¹Oxford Centre for Human Brain Activity, Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, OX3 7JX, UK.

Brain communications

|May 23, 2024

概括

磁脑电图揭示了肌缩侧面硬化症 (ALS) 中明显的脑活动模式,显示了降低的β和增加的马功率. 这些发现可以作为疾病进展和治疗反应的生物标志物.

科学领域:

神经科学是一个神经科学.
生物标志物发现发现
神经退行性疾病神经退行性疾病

背景情况:

肌缩侧面硬化症 (ALS) 涉及渐进的运动神经元损失和广泛的皮质病理.
目前对ALS的生物标志物缺乏加快治疗评估的敏感性.
磁脑电图 (MEG) 提供高时间分辨率的非侵入性,整个皮层的神经活动评估.

研究的目的:

用无任务磁脑摄影 (MEG) 来描述ALS的皮层振荡特征.
评估MEG指标作为ALS的潜在药理动力学生物标志物.
为了将MEG发现与疾病严重程度相关联,并探索其诊断潜力.

主要方法:

从36名ALS患者和51名健康对照中获得了无任务,眼睛开放的MEG记录 (8-10分钟).
结构性MRI用于共同注册.
提取的MEG指标包括振荡功率,1/f指数 (复杂度),以及跨频段 (delta到高-gamma) 的振幅包相关性 (连接性).

主要成果:

患有ALS的患者表现出降低的感觉运动β频段和增加的高马频段功率.
增加的残疾与前运动皮质1 / f指数的减少以及在三角形,三角形和高马波段的全球连接性增加相关.
一个随机森林模型在预测疾病严重程度方面获得了0.24的R2.

结论:

MEG指标,特别是β和gamma功率的变化,反映了ALS潜在的皮质病理,可能与GABAergic内部神经元功能障碍有关.
增加ALS的连接性可能代表运动系统故障的补偿机制.
基于MEG的措施显示出有希望的敏感结果措施,用于临床试验中的治疗效益和潜在的诊断价值.

关键词:

许多人,很多人.电磁神经成像是一种电磁神经成像.激发性抑制平衡的激发性抑制平衡频段分析频段分析频段分析运动神经元疾病运动神经元疾病

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