神经调节性皮质下核完整性与白质微观结构,病和APOE状态有关
Alfie Wearn1, Stéfanie A Tremblay2,3,4, Christine L Tardif5,6,7
1Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, H3A 2B4, QC, Canada. alfie.wearn@mcgill.ca.
Nature communications
|June 3, 2024
概括
早期阿尔茨海默氏病 (AD) 病会影响异构核 (IdC),影响白质完整性. 这项研究揭示了IdC微观结构的变化与白质变化相关,为早期AD病理提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 神经病理学神经病理学
- 放射学 放射学是一门学科.
背景情况:
- 异构核 (IdC) 是阿尔茨海默氏症 (AD) 中病的早期部位.
- IdC 核在很大程度上呈现出来,影响整个大脑的白质微观结构.
- 了解IDC-白质关系对于早期AD检测至关重要.
研究的目的:
- 为了研究IDC微观结构和全脑白质微观结构之间的关系,在AD的家族风险的个体.
- 为了识别与AD发展相关的早期神经病理变化.
主要方法:
- 使用多参数定量磁共振成像 (MRI).
- 分析包括133名具有家族性AD风险的认知不损害的老年人.
- 研究了IdC和白质微观结构之间的共变性模式.
主要成果:
- 两种共变性模式将IdC完整性与白质神经元密度和方向分散联系起来.
- 这些模式在公元早期受影响的白质区域中更为明显.
- 一个模式与脑脊液酸化tau水平相关,表明AD的特异性.
- 携带阿波利波蛋白-E4的携带者表现出两种模式的强烈表达.
结论:
- IdC微观结构的变化反映在白质中,特别是在易患AD的区域.
- 这突出了阿尔茨海默病病理发展的潜在早期机制.
- 这些发现强调了IDC在AD早期阶段的作用.
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