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临床表现 临床表现

John M Ringman1

  • 1Keck School of Medicine, University of Southern California, Los Angeles, CA, USA; Alzheimer's Disease Research Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA; University of Southern California, Los Angeles, CA, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
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概括
此摘要是机器生成的。

与PSEN1 A431E突变相关的自体主导阿尔茨海默病早期呈现出性帕帕雷斯和认知能力下降. 墨西哥的这一创始突变为阿尔茨海默病 (AD) 干预提供了一个目标.

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科学领域:

  • 神经科学是一个神经科学.
  • 遗传学 遗传学 是一个
  • 病理学 病理学 病理学

背景情况:

  • 自体主导性阿尔茨海默病 (ADAD) 是一种罕见的阿尔茨海默病 (AD) 形式,由PSEN1,APP或PSEN2基因的完全透突变引起.
  • PSEN1突变是ADAD最常见的原因,在特定人群中观察到创始人效应,使详细的遗传和表型研究成为可能.
  • 研究创始人群增强了影响AD表型和干预效应的遗传/非遗传因素的识别.

研究的目的:

  • 审查有关A431E PSEN1突变的文献,这是自体主导阿尔茨海默病的特定原因.
  • 分析与A431E PSEN1突变相关的表型,病理学和潜在的治疗标.

主要方法:

  • 文献综述的重点是PSEN1基因中的A431E突变.
  • 分析了来自美国和墨西哥100多个携带A431E PSEN1突变的家族的临床数据.
  • 审查初步的病理和神经成像 (Flortaucipir PET,扩散MRI) 数据.

主要成果:

  • 由于创始人效应,在墨西哥 (哈利斯科州) 的100多个家庭中发现了A431E PSEN1突变,导致发病的平均年龄为41岁.
  • 临床表现包括性帕帕雷西斯 (40%的病例) 和认知缺陷 (情节性记忆,语言或执行功能障碍).
  • 病理学显示严重的大脑粉样蛋白血管病变 (CAA) 和非典型的粉样蛋白斑块;神经成像显示特征大脑区域参与和白质异常.

结论:

  • 据估计,A431E PSEN1突变影响了约1,260名处于危险的个体,是AD干预策略的重要目标.
  • 这种突变是开发突变特异性基因疗法和一般抗老年症治疗的首选候选者.
  • 对于这种特定的ADAD遗传原因,需要进一步的研究和治疗开发.