多部位慢性疼痛:与认知衰退和死后阿尔茨海默氏症生物标志物的关联
Tyler R Bell1, Carol E Franz1, Imanuel R Lerman2
1Department of Psychiatry and Center for Behavior Genetics of Aging, University of California San Diego, San Diego, CA 92093, USA.
Brain communications
|June 11, 2025
概括
多部位慢性疼痛,影响多个身体区域,与更快的认知衰退和阿尔茨海默病生物标志物的增加有关,特别是在具有更高遗传风险的个体中. 减少疼痛可能有助于降低痴呆症风险.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 疼痛医学 医学 疼痛医学
背景情况:
- 多部位慢性疼痛是已知的阿尔茨海默病 (AD) 风险因素,但其与AD病理和认知衰退的直接关联尚未完全理解.
- 了解这种联系对于制定针对老年人群认知障碍的预防策略至关重要.
研究的目的:
- 研究老年人多部位慢性疼痛,单部位慢性疼痛和认知衰退之间的关联.
- 检查慢性疼痛状态和死后阿尔茨海默病生物标志物之间的关系,包括β-粉样蛋白 (Aβ) 和tau病理.
- 探索阿波利波蛋白-ɛ4 (APOE-ɛ4) 基因型对这些关联的影响.
主要方法:
- 一项纵向的前性观察性研究,涉及3459名在基线没有痴呆症的参与者.
- 认知功能被评估了平均8.53年的时间.
- 从一小部分参与者的死后脑组织中分析了Aβ负载和tau纠密度;APOE-ɛ4基因型也被确定.
主要成果:
- 多部位慢性疼痛与单部位疼痛不同,与更急剧的全球认知,情节性记忆和工作记忆下降有关.
- 患有多部位慢性疼痛的参与者患阿尔茨海默氏症痴呆的可能性更高,并且在内腔皮层和海马体中Aβ沉积增加.
- 这些影响在具有较高阿波利波蛋白-ɛ4负载的个体中更为明显,这表明基因与环境的相互作用.
结论:
- 多部位慢性疼痛,但不是单部位疼痛,与加速的认知衰退和阿尔茨海默氏症神经病理增加有显著联系.
- 这些发现强调了疼痛管理作为一种减轻认知衰退和降低阿尔茨海默病风险的策略的潜力,特别是在基因易受影响的个体中.
- 针对多部位疼痛可能是预防痴呆症的新方法.
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