左侧的DTI-ALPS指数:在帕金森病中的认知和运动功能障碍的潜在淋巴介质
Yanyan Li1,2, Jian Song1,2,3, Yuqing Zhao1,2,3
1Department of Medical Imaging, The Affiliated Rehabilitation Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China.
Frontiers in medicine
|December 15, 2025
概括
帕金森病 (PD) 患者表现出淋巴功能受损,由周周血管空间 (DTI-ALPS) 沿线扩散张力成像 (DTI-ALPS) 指数的减少表明. 这种功能障碍与认知和运动缺陷相关,这表明DTI-ALPS是PD进展的潜在生物标志物.
科学领域:
- 神经成像是一种神经成像.
- 神经退行性疾病 神经退行性疾病
- 淋巴系统功能 淋巴系统功能
背景情况:
- 帕金森病 (PD) 是一种神经退行性疾病,其特点是运动和认知能力下降.
- 淋巴系统功能障碍越来越多地与PD的发病有关.
- 扩散张力成像沿周周血管空间 (DTI-ALPS) 指数是一种评估淋巴功能的新方法.
研究的目的:
- 用DTI-ALPS指数评估PD患者的淋巴功能.
- 研究DTI-ALPS指数与PD的认知/运动功能之间的关联.
- 探索DTI-ALPS作为PD生物标志物的潜力.
主要方法:
- 横截面研究比较PD患者 (n=64) 和健康对照 (HC,n=30).
- 进行扩散张力成像 (DTI) 来计算DTI-ALPS指数.
- 认知功能使用蒙特利尔认知评估 (MoCA) 尺度进行评估,运动功能使用运动障碍学会统一的帕金森病评级尺度III (MDS-UPDRS III).
主要成果:
- 与HC相比,PD患者的左侧DTI-ALPS指数降低,投射和关联纤维的扩散性增加.
- 左侧的DTI-ALPS指数与MDS-UPDRS III分数负相关,与MoCA分数正相关.
- 随着疾病从正常认知PD向痴呆PD的进展,观察到扩散度的逐步增加和DTI-ALPS指数的下降.
结论:
- 缺陷的淋巴功能,由降低的DTI-ALPS指数和改变的白质微观结构证明,在PD中存在.
- 淋巴功能障碍与PD的运动和认知能力下降有显著的关联.
- 该DTI-ALPS指数显示,作为PD认知障碍的敏感生物标志物具有前景.
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