在患有帕金森病和行走障碍的患者中,前端对象-状网络和基底核调节
Akira Nishida1, Atsushi Shima1, Daisuke Kambe1
1From the Department of Neurology (A.N., A.S., D.K., K.F., H.S.-T., K.Y., I.W., Y.S., Y. Terada, M.S., E.N., Y. Taruno, H.Y., R.T.), Human Brain Research Center (A.S., T.O.), Department of Diagnostic Imaging and Nuclear Medicine (Y.F., Y.N.), and Department of Human Health Sciences (N.S.), Kyoto University Graduate School of Medicine, Japan.
Neurology
|July 8, 2024
概括
这项研究表明,在帕金森病 (PD) 中,前端双关节网络连接受损影响着步态控制. 减少连接性与认知缺陷相关,影响PD患者的步态.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 运动障碍 运动障碍
背景情况:
- 帕金森病 (PD) 涉及影响步态的复杂神经计算,包括运动模式受损和认知补偿.
- 了解对步态控制的认知贡献的网络机制对于PD研究至关重要.
研究的目的:
- 澄清在帕金森病中对步态控制的认知贡献背后的网络机制.
- 为了研究认知功能如何被招募和分解在PD患者的步态.
主要方法:
- 56名帕金森病患者在单任务和双任务条件下接受了步态分析.
- 功能性MRI和123I-ioflupane SPECT成像用于评估大脑活动和神经化学.
- 集群分析和t分布的随机邻居嵌入基于步态特征的分类患者.
主要成果:
- 确定了三个步态子组:保持步态 (PG),轻度步态障碍 (MIG) 和严重步态障碍 (SIG).
- 在SIG小组中,速度最慢,步态变化最多,注意力和执行功能有显著的缺陷.
- 严重受损的步态与前面对面网络 (FPN) 和尾状网络之间的功能连接性降低相关,与胆固醇Ch4系统完整性有关.
结论:
- 由胆固醇Ch4系统调节的FPN与尾状细胞的功能连接是PD行走中认知补偿的关键.
- 这种网络机制支持注意力和执行功能的招募,以弥补帕金森病中步行自动性受损的损失.
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