动态功能连接性揭示了超连接模式和帕金森病步态结的异常变异性
Caiting Gan1, Min Ji1, Huimin Sun1
1Department of Neurology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Neurobiology of disease
|August 19, 2023
概括
帕金森病患者的步态结 (FOG) 显示了大脑网络连接的改变. 异常的前骨-后骨合和降低的前骨效率与FOG严重程度有关.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 医疗成像医学成像
背景情况:
- 步态结 (FOG) 是帕金森病 (PD) 的一个衰弱症状.
- 以前的研究强调了FOG的PD患者的异常大脑活动.
- 在PD-FOG中的动态功能连接 (dFNC) 仍然未被充分探索.
研究的目的:
- 为了研究帕金森病患者的动态功能网络连接 (dFNC),这些患者经历了步态结 (PD-FOG).
主要方法:
- 休息状态功能磁共振成像 (rs-fMRI) 对52名PD-FOG患者,73名PD患者没有FOG (PD-NFOG) 和38名健康对照 (HC) 进行.
- 移动窗口,k-means集群和图形理论分析被用来评估dFNC.
- 部分相关性分析检查了dFNC和FOG严重程度之间的关系.
主要成果:
- 他们发现了7个大脑网络和7个动态状态.
- 患有PD-FOG的患者在特定状态下,在默认模式网络 (DMN) 和基底腺网络 (BG) 之间的功能合增加,特别是在前后区域.
- 这种状态的持续时间和频率与FOG严重程度正相关.
- 患有PD-FOG的患者显示左前结节效率的变异性降低.
结论:
- 异常的前尾合是帕金森病中FOG的潜在神经机制.
- 在前兆效率中受到破坏的变化也可能导致FOG的病理生理学.
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