帕金森病中双重任务步行障碍与大脑形态变化有关
Radim Krupička1, Christiane Malá1, Slávka Neťuková1
1Department of Biomedical Informatics, Faculty of Biomedical Engineering, Czech Technical University in Prague, Prague, Czech Republic.
Journal of neural transmission (Vienna, Austria : 1996)
|February 28, 2024
概括
早期帕金森病 (PD) 损害了步态和认知. 这项研究将特定的大脑区域与早期PD患者双重任务期间的步态变化联系在一起,这表明这些缺陷的早期神经支.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 生物医学工程 生物医学工程
背景情况:
- 帕金森病 (PD) 显著影响步态和认知功能,影响日常生活,特别是在晚期.
- 早期发现和了解这些损害对于及时干预和管理至关重要.
- 在早期未经治疗的PD中,研究步态,认知和大脑结构之间的关系可以揭示基本的疾病机制.
研究的目的:
- 探索步态参数,认知表现和脑形态在早期,无药的帕金森病患者之间的关联.
- 在双重任务条件下识别与步态变化相关的特定大脑区域.
- 根据PD患者的双重任务成本 (DTC) 来区分步态和认知表现.
主要方法:
- 步行分析使用GaitRite走道上的扩展定时上行测试,测量单任务和双任务条件 (计数任务) 中的速度,步伐长度和节奏.
- 对T1加权磁共振 (MR) 图像进行脑形态测量分析.
- 基于voxel的形态对应分析,将大脑结构与步态参数和PD子组中的DTC (正常的DTC和增加的DTC) 联系起来.
主要成果:
- 与健康对照组 (HC) 相比,PD患者在单任务行走中表现出较低的步行速度和步伐长度.
- PD患者的速度,步伐长度和节奏的双重任务成本 (DTC) 比HC患者要高得多.
- 在PD小组中,在特定的大脑区域 (左主运动皮质,右舌环) 和步行DTC之间发现了相关性,但在HC中没有.
结论:
- 步行和认知障碍,由增加的双重任务成本表明,即使在早期,未经治疗的帕金森病中也存在.
- 运动和视觉关联区域的特定大脑形态变化与早期PD的双重任务条件下的步态控制相关.
- 这些发现突出了早期的神经基质在帕金森病进展中的步态和认知缺陷之间的联系.
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