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阿尔茨海默氏症成像联盟

Casey R Vanderlip1, Jenna N Adams2

  • 1University of California, Irvine, Irvine, CA, USA.

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

通过ALFF测量的海马体过敏性是阿尔茨海默病的一个新型生物标志物. 这种"H"生物标志物提高了超出A/T/N框架的诊断准确性,显示了跟踪疾病进展的潜力.

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科学领域:

  • 神经科学是一个神经科学.
  • 生物标志物发现发现
  • 阿尔茨海默氏症疾病研究研究

背景情况:

  • 海马体过度兴奋是一种早期阿尔茨海默病 (AD) 的特征,可能导致病理.
  • 目前的AD风险模型 (A/T/N框架) 缺乏过度刺激性生物标志物.
  • 从rsfMRI作为高兴度 ("H") 生物标志物的低频波动 (ALFF) 的研究幅度.

研究的目的:

  • 为了确定海马体ALFF (rsfMRI) 是否提供有关AD进展的敏感信息.
  • 评估ALFF作为阿尔茨海默病的潜在生物标志物.
  • 评估ALFF是否可以改善现有的A/T/N生物标志物.

主要方法:

  • 通过使用rsfMRI,Aβ-PET和tau-PET分析了来自ADNI的386名老年人 (CN,MCI,AD痴呆症).
  • 来自rsfMRI的定量海马和后骨ALFF.
  • 研究了ALFF,A/T/N生物标志物 (Aβ-PET,tau-PET,海马体积) 和诊断之间的关系.

主要成果:

  • 与认知正常 (CN) 个体相比,MCI中的海马体ALFF升高.
  • 较高的海马ALFF与Aβ+个体中中部叶 (MTL) tau的增加相关.
  • 将海马ALFF添加到A/T/N模型中,改善了对AD的诊断歧视.

结论:

  • 海马的ALFF,一种过度兴奋的代理,是阿尔茨海默病的有价值的生物标志物.
  • 海马体ALFF捕捉了超出A/T/N框架的认知障碍.
  • 未来的AD框架应纳入"H"生物标志物,以更好地了解疾病进展和风险.