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临床表现 临床表现

Deepti Putcha1, Michael J Properzi2, Kathryn V Papp3

  • 1Frontotemporal Disorders Unit, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
PubMed
概括
此摘要是机器生成的。

主观认知衰退,特别是视觉空间问题,可能表明临床前阿尔茨海默病 (AD). 日常认知量表 (ECOG) 在识别早期AD生物标志物的个体方面表现有前途.

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科学领域:

  • 神经科学是一个神经科学.
  • 老年学是指老年学的学科.
  • 医学诊断 医学诊断 医学诊断

背景情况:

  • 在认知无障碍 (CU) 个体中,主观认知衰退 (SCD) 表示阿尔茨海默病 (AD) 风险增加.
  • 阿尔茨海默病呈现异质,包括非典型的后皮层缩 (PCA) 变体.
  • 目前缺乏检测临床前PCA的方法.

研究的目的:

  • 调查CU个体的主观视觉空间衰退.
  • 探索视觉空间问题,认知表现和AD生物标志物 (粉样蛋白和蛋白) 之间的关联.

主要方法:

  • 对253名CU参与者的日常认知量表 (ECOG) 视觉空间子量表反应的分析.
  • 与客观认知测试和粉样蛋白PET (PiB) 阳性的相关性.
  • 探索性tau PET分析以评估tau负担.

主要成果:

  • 4%的CU参与者报告视觉空间困难.
  • 主观视觉空间下降与粉样蛋白PET阳性 (PiB+) 相相关.
  • 与特定大脑区域的陶沉积相关的视觉空间问题.

结论:

  • CU个体的主观视觉空间衰退可能反映了早期的AD病理.
  • 在临床前的AD中,ECOG工具可以检测微妙的视觉空间变化以及记忆问题.
  • 识别非典型的AD变体有助于早期诊断和治疗策略.