自身免疫抗体和全身炎症标志物普遍存在,并且与90岁以上的个体的认知相关
Ghasem Farahmand1, Anne-Marie C Leiby1, Jiaxin Yu2
1Department of Neurology, University of California, Irvine, CA, USA.
Journal of Alzheimer's disease : JAD
|August 8, 2025
概括
自免疫抗体和炎症标志物在90岁以上的人群中很常见. 抗中性粒细胞抗体 (ANCA),IL-6和ESR的较高水平与这个年龄组的认知表现较差有关.
科学领域:
- 老年学是一门学科.
- 免疫学 免疫学 免疫学
- 神经学 神经学
背景情况:
- 以前的研究将自身免疫和炎症与老年人 (60-90岁) 的认知能力下降联系在一起.
- 这些关联在老年人 (90岁以上) 中仍未得到充分研究.
研究的目的:
- 在90岁及以上的个人中确定自身免疫抗体和炎症标志物的患病率.
- 调查这些标记物与该人口的认知表现之间的关系.
主要方法:
- 对201名参与者 (平均年龄94.8) 的血清学数据进行了分析.
- 评估自身免疫抗体 (例如,ANCA,类风湿性因素) 和炎症标志物 (IL-6,ESR).
- 线性混合效应模型用于评估与全球认知得分的关联,控制亚群中的粉样蛋白负担.
主要成果:
- 阳性自身免疫抗体 (70.2%) 和炎症标志物 (76.8%的受试者) 的高患病率.
- 在较高的ANCA,IL-6和ESR水平和较低的全球认知分数之间发现了显著的关联.
- 这些认知关联甚至在调整了粉样蛋白负担后仍然存在.
结论:
- 自免疫和炎症在老年人中非常普遍.
- 增加的自身免疫和炎症可能会导致90岁以上的个体的认知能力下降,而不依赖于粉样蛋白病理.
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