拉姆测试:一种用于在临床前阿尔茨海默病早期检测的新认知标志物
María García-Martínez1,2, Ana Pozueta-Cantudo1,2, Carmen Lage1,2,3
1Neurology Service, Marqués de Valdecilla University Hospital, Santander, Cantabria, Spain.
Journal of Alzheimer's disease : JAD
|June 29, 2024
概括
新的学习和关联性记忆 (LAM) 测试显示了早期阿尔茨海默病 (AD) 检测的前景. 它识别了风险人群中微妙的认知变化,超过了传统的记忆评估.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 生物标志物 生物标志物
背景情况:
- 疾病修饰治疗的出现需要用于早期发现阿尔茨海默病 (AD) 的新型认知标志物.
- 临床前AD阶段需要敏感的标记物来识别显著的认知衰退之前的病理变化.
研究的目的:
- 为了评估学习和关联记忆 (LAM) 面试的实用性.
- 为了检查大脑脊髓液 (CSF) AD生物标志物和LAM测试表现之间的关系.
- 评估LAM测试在检测有风险的认知健康个体中微妙的认知变化的临床适用性.
主要方法:
- 80名认知健康的志愿者接受了CSF生物标志物分析和神经心理测试.
- 参与者使用LAM测试 (学习和记忆指数) 和经典的口头情节性记忆测试 (RAVLT,FCSRT) 进行评估.
- 基于粉样蛋白状态 (A+) 和ATN (粉样蛋白,,神经退行) 分类系统,分析了认知表现.
主要成果:
- LAM测试的性能与CSF Aβ比率有显著的相关性.
- 与粉样蛋白阴性 (A-) 参与者相比,粉样蛋白阳性 (A+) 参与者在LAM学习和记忆指标上的表现较差.
- 在阿尔茨海默氏症连续线上观察到认知能力下降,在ATN组之间注意到了显著的差异.
结论:
- 该LAM测试显示了潜在的作为一个有价值的工具,用于早期检测在AD连续的个体.
- 与经典记忆测试相比,LAM测试在识别早期AD相关的认知变化方面表现优越.
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