在帕金森病患者的静态和动态功能网络连接中,患者有姿势不稳定和步态障碍
Bo Shen1,2,3, Qun Yao4, Yixuan Zhang5,6
1Department of Geriatrics, Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.
CNS neuroscience & therapeutics
|November 10, 2024
概括
帕金森病的步态问题源于大脑连接的改变. 患有姿势不稳定和步态障碍主导的帕金森病的患者表现出连接性降低和处理能力受损,小脑和默认模式网络相互作用表明补偿.
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:
- 帕金森症步态,特别是姿势不稳定和步态障碍 (PIGD),有不确定的神经学起源.
- 了解功能性大脑网络连接对于阐明帕金森病 (PD) 中的步态障碍至关重要.
研究的目的:
- 通过检查静态功能网络连接 (SFNC) 和动态功能网络连接 (DFNC) 来调查帕金森症行走的神经基础.
- 为了比较PIGD-PD患者,非PIGD-PD患者 (nPIGD-PD) 和健康对照 (HC) 之间的连接模式.
主要方法:
- 招募了64名PIGD-PD患者,31名nPIGD-PD患者和54名HC患者.
- 利用GIFT软件识别了五个关键的大脑网络:基底 (BG),小脑 (CB),感官运动网络 (SMN),默认模式网络 (DMN) 和中央执行网络 (CEN).
- 在网络中比较SFNC和DFNC,并与PIGD症状严重程度相关的发现.
主要成果:
- 与nPIGD-PD患者相比,PIGD-PD患者在特定网络状态中显示出CEN和DMN之间的连接性减少,并且改变了平均停留时间 (MDT).
- 与HC相比,PIGD-PD患者在CB和CEN,CB和DMN之间表现出增强的SFNC,在网络状态中具有不同的MDT模式.
- 与HC相比,nPIGD-PD患者也显示CB-DMN SFNC增加和MDT改变,MDT和状态2分数窗口与PIGD得分呈正相关.
结论:
- PIGD-PD患者表现出大脑连接性下降和信息处理受损.
- 小脑和DMN之间的增强连接可能代表PIGD-PD中的动态补偿机制.
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