使用概念区分能力的阿尔茨海默病病理学临床前检测
Lara Huyghe1, Yasmine Salman1, Lise Colmant2
1Institute of Neuroscience (IoNS), UCLouvain, Brussels, Belgium.
The journal of prevention of Alzheimer's disease
|September 2, 2025
概括
概念匹配任务 (CMT) 显示出早期阿尔茨海默病 (AD) 检测的希望,比标准测试更早地识别临床前AD标志物. 在认知障碍患者中,CMT表现与粉样蛋白和白质变化有关,而不是tau.
科学领域:
- 神经科学
- 神经学
- 认知科学
背景情况:
- 概念匹配任务 (CMT) 评估可混项目的歧视.
- CMT的表现可能表明鼻皮缩,这是阿尔茨海默病 (AD) 的早期迹象.
研究的目的:
- 评估CMT检测临床前AD的能力.
- 调查CMT表现和AD生物标志物,如粉样蛋白 (Aβ) 和沉积以及白质超强度 (WMH) 之间的关系.
主要方法:
- 对101名参与者的横截面研究:Aβ阴性认知障碍 (CU),Aβ阳性认知障碍 (临床前AD),Aβ阳性轻度认知障碍 (MCI).
- 评估包括CMT,标准神经心理测试 (PACC5),Aβ状态,3D-T1MRI和tau-PET ([18F]MK-6240).
主要成果:
- 与Aβ-CU个体相比,Aβ+MCI和Aβ+CU组的CMT表现较低.
- Aβ积累和WMH对CMT的表现产生了负面影响,但性tau负担并没有显著影响.
- 在检测UC个体的临床前AD病理 (Aβ或tau) 时,CMT的灵敏度高于PACC5.
结论:
- 比传统的神经心理评估更早地检测出与临床前阿尔茨海默病相关的认知变化.
- 作为阿尔茨海默病的早期诊断工具和临床试验的有价值措施,CMT具有潜力.
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