认知衰退向阿尔茨海默病进展的动态:ADSP-PHC协调认知复合物的结果
Kaidi Kang1, Panpan Zhang1,2, Logan Dumitrescu2,3,4
1Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
概括
在阿尔茨海默氏症 (AD) 中,记忆力下降通常会先于语言和执行功能下降. 这种认知障碍的持续时间顺序在一个大型,协调的研究中在多个不同的子组中观察到.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 老年学是一门学科.
背景情况:
- 准确评估认知衰退的时间顺序对于阿尔茨海默病 (AD) 研究至关重要.
- 由于单一队列分析和多种方法,现有研究有相互矛盾的结果.
研究的目的:
- 确定在阿尔茨海默病中记忆,语言和执行功能的认知衰退的精确时间序列.
- 为了利用来自多个队伍的统一数据进行可靠的分析.
主要方法:
- 利用了阿尔茨海默病测序项目表型协调联盟 (ADSP-PHC) 内的13个队伍的协调复合认知测量.
- 开发并应用了一种基于双事件的新型双模混合模型.
- 用于事件AD诊断的时间作为分析的主要时间表.
主要成果:
- 建立了认知衰退的一般时间顺序:记忆衰退先于语言衰退,随后是执行功能衰退.
- 这一序列在由阿波利波蛋白E ε4载体状态,性别和种族/种族定义的子组中保持一致.
结论:
- 证明了使用协调,多队列数据的有效性,以准确地描述AD认知衰退的时间进展.
- 验证了使用发生AD诊断的时间作为提高研究可复制性和临床应用的可靠指标.
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