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阿尔茨海默氏症成像联盟
Leslie S Gaynor1, Alaina Durant1, Shubhabrata Mukherjee2
1Vanderbilt University Medical Center, Nashville, TN, USA.
临主导的与年龄相关的TDP-43脑病变神经病理变化 (LATE-NC) 和阿尔茨海默病 (AD) 独特地影响中间叶体积和认知能力下降. 在生活中识别LATE-NC对于理解其在痴呆症中的作用至关重要.
科学领域:
- 神经病理学神经病理学
- 神经退行性疾病 神经退行性疾病
- 认知老龄化 认知老龄化
背景情况:
- 临主导的与年龄相关的TDP-43脑病变神经病理变化 (LATE-NC) 在痴呆症中很普遍,通常与阿尔茨海默病 (AD) 一起发生.
- 缺乏LATE-NC的体内生物标志物阻碍了临床鉴定.
- 这项研究调查了病理确认的LATE-NC,有或没有AD,与中叶 (MTL) 体积和认知轨迹的关联.
研究的目的:
- 为了评估病理确认LATE-NC和AD之间的关系.
- 评估LATE-NC和AD对中叶 (MTL) 亚区域体积的影响.
- 为了确定LATE-NC和AD对纵向认知衰退的影响.
主要方法:
- 来自AD测序项目表型协调联盟的846名参与者 (70岁以上) 的分析.
- 基于AD和LATE-NC的死后神经病理学的分类.
- 纵向认知领域评分 (记忆,执行功能,语言) 和3T脑MRI细分 (MUSE) 的评估.
- 统计分析包括ANOVA,千平方,线性回归和线性混合效应模型.
主要成果:
- 无论是AD还是LATE-NC,都与MTL亚区域体积有独特的关联,除了上旋.
- 海马与LATE-NC相关,但不是AD病理.
- 与没有LATE-NC的参与者相比,LATE-NC的参与者表现出更快的记忆衰退速度,而AD病理与执行功能和语言的更快衰退有关.
结论:
- 阿德和LATE-NC与MTL体积和认知衰退有明显的关联.
- 了解LATE-NC的临床相关性对于生命中的诊断至关重要.
- 这项研究支持未来关于LATE-NC病原和临床管理的研究.
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