边缘性阿尔茨海默氏症在多个系统缩中的共同病理与认知障碍和诊断不准确性有关
Janna van Wetering1,2, Natasja A C Deshayes1,2, Joëlle Boone1,2
1Section Clinical Neuroanatomy and Biobanking, Department of Anatomy and Neurosciences, Amsterdam UMC, Vrije University, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
Acta neuropathologica
|September 18, 2025
概括
像粉样β (Aβ) 和酸化 (p-tau) 这样的共同病理在多重系统缩 (MSA) 中很常见,并且与认知衰退和误诊有关,特别是在老年患者中.
科学领域:
- 神经科学是一个神经科学.
- 神经病理学神经病理学
- 临床神经学 临床神经学
背景情况:
- 多重系统缩 (MSA) 呈现出临床异质性,可能受到α-synuclein (α-syn) 共同病理的影响.
- 粉样β (Aβ),酸化 (p-tau) 和pTDP-43在MSA的临床表现中的作用仍然不完全理解.
研究的目的:
- 为了调查Aβ,p-tau和pTDP-43共同病理的流行,形态,区域分布和临床意义,在一个特征良好的MSA尸检队列中.
- 将这些共同病理与临床特征相关联,包括认知障碍和诊断准确性.
主要方法:
- 来自70名MSA捐赠者的死后边缘组织被分析为α-syn,Aβ,p-tau和pTDP-43病理负荷和形态.
- 收集了APOE-ε4基因型和临床数据,并进行了统计分析 (ANCOVA,混合线性模型) 来评估与临床参数的关联.
主要成果:
- 在MSA病例中,Aβ,p-tau和pTDP-43病理分别出现在31%,91%,11%的病例中,主要出现在脑内皮层和杏仁体中.
- 认知障碍与Aβ斑块,p-tau病理和杏仁体α-syn包容相关.
- 增加的共同病理负担与更高的误诊率和更高的发病年龄有关.
结论:
- 边缘Aβ,p-tau和α-syn病理在MSA中很普遍,并且独立地与认知衰退和诊断不准确性有关.
- 这些发现强调了对MSA,特别是老年人,需要精细的诊断标准和共病理信息的生物标志物策略的需要.
- 该研究提供了对共同病理的系统评估,推进了理解,超出了简单的流行报告.
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