在患有多发性硬化症的老年人中,神经纤维光链和阿尔茨海默病理生物标志物
Federica Novarella1, Valerio Nicolella2, Mariano Fiorenza3
1Department of Neuroscience, Reproductive Science and Odontostomatology, Federico II University of Naples, Naples, Italy; Multiple Sclerosis Unit, Policlinico Federico II University Hospital, Naples, Italy; Cognitive Impairment and Neurorehabilitation Unit, Policlinico Federico II University Hospital, Naples, Italy.
Journal of the neurological sciences
|June 7, 2025
概括
在患有多发性硬化症 (MS) 的老年患者中,血神经丝光链 (pNfL) 水平与阿尔茨海默病 (AD) 生物标志物相关,而不是MS残疾或认知功能. 这表明老年人中MS和AD之间有共同的病理机制.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 生物标志物研究 生物标志物研究
背景情况:
- 血神经丝光链 (pNfL) 是神经轴损伤的标志物,通常与多发性硬化症 (MS) 的残疾进展有关.
- 然而,pNfL也可能受到老化和阿尔茨海默病 (AD) 等并发症的影响,这使得老年多发性硬化症患者的解释变得复杂.
- 了解这种人群中PNfL的特定相关物质对于准确的诊断和管理至关重要.
研究的目的:
- 在被诊断患有多发性硬化症 (MS) 的老年人中研究血神经丝光链 (pNfL) 的临床关联.
- 检查pNfL水平与已确定的阿尔茨海默病 (AD) 病理学的血生物标志物之间的关系.
- 在老龄化人口中探索MS和AD之间的病理机制的潜在重叠.
主要方法:
- 招募83名患有多发性硬化症的老年患者 (65岁以上),收集扩展残疾状况量表 (EDSS) 和疾病修饰治疗 (DMT) 暴露的数据.
- 使用符号数字模式测试 (SDMT),加利福尼亚语音学习测试-II (CVLT-II) 和简要视觉空间记忆测试 (BVMTR) 的认知功能评估.
- 使用LUMIPULSE测试套件测量血生物标志物,包括Aβ40,Aβ42,p-Tau181和pNfL.
主要成果:
- 在对共变量进行调整后,没有发现pNfL和与MS相关的因素,如EDSS,DMT类型/持续时间或认知测试得分 (SDMT,CVLT,BVMTR) 之间的显著关联.
- 较高的PNfL水平与较低的血氨基酸β 40 (Aβ40),氨基酸β 42 (Aβ42) 水平以及降低的Aβ42/Aβ40比率显著相关.
- 较低的Aβ42 / Aβ40比率与语言学习障碍 (CVLT) 独立相关.
结论:
- 在患有多发性硬化症的老年人中,血神经丝光链 (pNfL) 与生物标志物有关,这些生物标志物表明粉样蛋白积累,这是阿尔茨海默病 (AD) 的标志.
- 这些发现表明,这一人口群体中pNfL升高可能反映了共享或共存的病理,而不是仅由MS驱动的神经退行.
- 阿尔茨海默病生物标志物与认知障碍之间的关联进一步支持了老年多发性硬化症患者病理过程重叠的假设.
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