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在孤立的REM睡眠行为障碍中改变网络效率:一个多中心研究.

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概括

在孤立的快速眼动睡眠行为障碍 (iRBD) 中,大脑连接的变化预测了未来的痴呆症. 大脑网络的早期破坏可以识别患有同核蛋白病变相关痴呆症的风险个体.

关键词:
患有利维体痴呆症的痴呆症扩散磁共振成像技术的使用.图形理论中的图形理论.这种类型的寄生虫是寄生虫.睡眠 睡眠 睡眠 睡眠 睡眠结构连接性的结构连接性有关同核蛋白病变的疾病.

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科学领域:

  • 神经科学是一个神经科学.
  • 神经学 神经学
  • 医疗成像医学成像

背景情况:

  • 孤立的快速眼动 (REM) 睡眠行为障碍 (iRBD) 是莱维体 (DLB) 和帕金森病 (PD) 的痴呆症的前体.
  • 已知iRBD中的大脑变化,但它们对结构连接和网络效率的影响尚不清楚.
  • 了解这些变化可能会导致早期诊断生物标志物.

研究的目的:

  • 研究iRBD患者的结构性大脑连接和网络效率.
  • 确定这些网络改变是否可以预测DLB或PD的进展.

主要方法:

  • 198名iRBD患者和174名对照人群接受了扩散磁共振成像.
  • 先进的扩散通道图和基于网络的统计数据被用来分析个体的大脑连接组.
  • 网络属性被评估为它们对DLB或PD发展的预测价值.

主要成果:

  • 与对照组相比,iRBD患者表现出结构结构的破坏,连接减少和增加.
  • 在iRBD患者中,全球网络效率下降.
  • 运动区域的局部效率变化与早期的临床症状相关,并且超边缘环效率预测了DLB.

结论:

  • 在iRBD中,大脑结构连接和网络效率的早期破坏是显而易见的.
  • 这些变化作为潜在的预后生物标志物用于与同核蛋白病相关的痴呆症.
  • 网络效率的变化与帕金森特征的发展有关,并预测痴呆风险.