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临床表现 临床表现

Tyler R Bell1,2, Carol E Franz1,2, Christine Fennema-Notestine1,2

  • 1Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA, USA.

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概括
此摘要是机器生成的。

中度至重度的慢性疼痛加速认知衰退和神经退行,主要通过粉样β (Aβ) 途径. 这凸显了在阿尔茨海默病 (AD) 风险评估和干预中解决显著疼痛的重要性.

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科学领域:

  • 神经科学是一个神经科学.
  • 老年学是指老年学的学科.
  • 生物标志物 生物标志物

背景情况:

  • 慢性疼痛影响到20%的老年人,增加阿尔茨海默病 (AD) 痴呆的风险.
  • 有限的研究存在于慢性疼痛与AD生物标志物的关联,特别是中度至重度疼痛.

研究的目的:

  • 调查中度至重度慢性疼痛与认知衰退以及AD生物标志物之间的关联.
  • 探索粉样β (Aβ) 和神经退行症在这种关系中的调解作用.

主要方法:

  • 利用了来自阿尔茨海默病神经成像计划 (ADNI) 的2487名没有基线痴呆症的参与者的数据.
  • 根据中度至严重的慢性疼痛 (发病前3个月以上) 和分析的认知结果 (CDR-SB,记忆,执行功能) 来分类参与者.
  • 使用混合效应和调解模型评估了AD生物标志物 (CSF Aβ42,tau,p-tau) 和结构性MRI (大脑特征,海马体积,皮质厚度,整个大脑体积).

主要成果:

  • 中度至重度的慢性疼痛与加速的全球认知衰退,记忆力,执行功能衰退和整个大脑体积损失相关.
  • 在患有中度至重度慢性疼痛的个体中,观察到Aβ病理积累的速度更快.
  • Aβ病理和整个大脑体积损失调解了疼痛和认知衰退之间的联系;Aβ也调解了疼痛-大脑体积损失的关联. 轻度疼痛没有显著的关联.

结论:

  • 中度至重度的慢性疼痛显著导致加速的认知衰退和神经退行,主要由Aβ介导.
  • 研究结果强调,需要将中度至严重的慢性疼痛纳入AD风险评估和干预策略.