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临床表现 临床表现

Patti Curl1, Rod L Walker2, Christine L Mac Donald3

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科学领域:

  • 神经成像是一种神经成像.
  • 神经病理学神经病理学
  • 认知神经科学 认知神经科学

背景情况:

  • 阿尔茨海默病 (AD) 痴呆症越来越被认为是异质的.
  • 以前的研究将认知性能亚型与不同的大脑体积和神经病理学联系起来.

研究的目的:

  • 研究AD痴呆症认知亚型与白质超强度 (WMH) 之间的关联.
  • 探索不同的WMH模式是否与阿兹海默症患者的特定认知缺陷相关.

主要方法:

  • 利用了来自成人思维变化 (ACT) 前性队列研究的数据.
  • 根据认知测试将AD参与者分为记忆,执行,语言或视觉空间缺陷子组.
  • 使用顺序逻辑回归分析了WMH的MRI扫描,将AD子组与对照组进行比较.

主要成果:

  • 与AD-Visuospatial亚组相比,AD-Visuospatial亚组显示了尾叶WMH的增加,而AD-Memory亚组则显示了尾叶WMH的增加.
  • 与其他AD子组或对照组相比,AD-执行子组表现出更多的头,头,下和基底 WMH.
  • 在AD-Memory和AD-Language小组中,叶WMH相对较低.

结论:

  • 在AD-Visuospatial亚组中尾WMH增加可能表明白质损伤导致视觉空间损伤.
  • 在AD-执行子组中的WMH模式表明广泛的白质参与.
  • 在AD-Memory和AD-Language亚组中,下叶WMH意味着白质损伤可能对这些损伤不那么重要.