帕金森病患者在精细运动任务中表现出初级运动皮质的延迟血液动力学变化,以及休息状态半球间功能连接性下降:一个功能近红外光谱学研究
Edgar Guevara1,2, Francisco Javier Rivas-Ruvalcaba3, Eleazar Samuel Kolosovas-Machuca2,4
1CONAHCYT-Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico.
Neurophotonics
|May 30, 2024
概括
功能近红外光谱 (fNIRS) 显示了帕金森病 (PD) 患者在精细运动任务期间运动皮层活动和连接的改变. 这些变化可能有助于开发未来的神经成像生物标志物用于PD诊断.
科学领域:
- 神经科学是一个神经科学.
- 医疗成像医学成像
- 神经学 神经学
背景情况:
- 帕金森病 (PD) 显著影响精细运动技能,这是一个关键的诊断指标.
- 功能近红外谱学 (fNIRS) 提供了一种非侵入性,便携式的方法来评估运动皮层功能.
研究的目的:
- 通过使用fNIRS,在精细运动和行走任务中比较PD患者和对照人群之间的初级运动皮层激活模式.
- 在PD患者与对照者之间调查静止状态中半球内和半球内功能连接 (FC).
主要方法:
- 在20名PD患者和20名匹配的对照中,fNIRS被用于测量手指敲击任务期间的血液动力学反应.
- 还进行了为期两分钟的步行任务和休息状态FC评估.
主要成果:
- 在PD患者表现出延迟的低活化 (主导手) 和高活化 (非主导手) 在运动皮质在微型运动任务.
- 在fNIRS测量和临床/认知变量之间发现了显著的相关性.
- 在行走任务期间,没有观察到运动皮层激活的显著差异.
- 与对照组相比,PD患者的半球间FC显著下降.
结论:
- 在PD患者中,运动皮层活动延迟和半球间CF减少可能作为潜在的神经成像生物标志物.
- fNIRS是客观评估帕金森病运动控制缺陷的一个有希望的工具.
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