在帕金森病中功能网络之间的相互作用 轻度认知障碍
Manuel Delgado-Alvarado1,2,3, Vicente J Ferrer-Gallardo4, Pedro M Paz-Alonso4,5
1Neurology Service, Hospital Sierrallana, 39300, Torrelavega, Spain.
Scientific reports
|November 18, 2023
概括
帕金森病中轻度认知障碍 (PD-MCI) 与感觉运动和注意力网络中的功能连接 (FC) 变化有关. 这些变化与PD患者的记忆缺陷和运动障碍相关.
科学领域:
- 神经科学是一个神经科学.
- 认知神经学 认知神经学
- 医疗成像医学成像
背景情况:
- 轻度认知障碍 (MCI) 是帕金森病 (PD) 的常见并发症,影响了很大一部分患者.
- 了解PD认知衰退的神经基础对于开发有针对性的干预措施至关重要.
- 在PD-MCI中报告了各种大脑网络中的功能连接 (FC) 干扰,但它们的确切作用仍然不清楚.
研究的目的:
- 研究帕金森病与轻度认知障碍 (PD-MCI),认知正常的帕金森病 (PD-CN) 患者和健康对照者 (HC) 之间的休息状态功能连接 (FC) 网络的差异.
- 探索观察到的FC变化与PD患者的认知 (工作记忆,记忆) 和运动 (UPDRS运动量表) 变量之间的关联.
主要方法:
- 使用数据驱动的独立组件分析 (ICA) 方法来检查静态网络 (RSN) 中的FC差异.
- 在三个组中比较了FC模式:PD-MCI,PD-CN和HC.
- 与标准化认知和运动评估相关联识别的FC变化.
主要成果:
- 在PD-MCI和PD-CN和HC组之间,一个独特的FC特征涉及传感运动 (SMN),背部注意力 (DAN),腹部注意力 (VAN) 和前端对面 (FPN) 网络,差异很大.
- 这种FC特征与工作记忆,一般记忆回忆和运动功能的障碍显著相关,这些障碍是由UPDRS运动量表测量的.
- 在SMN内以及SMN与注意网络 (DAN,VAN,FPN) 之间的减少FC被确定为PD-MCI中记忆缺陷的关键相关因子.
结论:
- 在PD-MCI中,记忆障碍与传感运动网络内以及传感运动和注意力网络之间的功能连接性降低有关.
- SMN和注意力网络之间的相互作用反映了PD-MCI中观察到的运动和认知功能交织的下降.
- 这些发现凸显了感官运动和注意力网络连接在帕金森病认知特征中的重要性.
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