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在纤维肌痛中疼痛敏感化和下降疼痛抑制
Ailyn Garcia-Hernandez1, Pablo de la Coba2, Stephen Bruehl3
1Department of Psychology, University of Jaén, Jaén.
The Clinical journal of pain
|September 22, 2025
概括
纤维肌痛患者表现出减少的下降疼痛抑制,有助于增加疼痛敏感性,并可能解释临床症状. 这种受损的疼痛调节与更大的症状严重程度和更高的焦虑水平有关.
科学领域:
- 神经科学是一个神经科学.
- 疼痛研究 疼痛研究
- 临床医学 临床医学
背景情况:
- 纤维肌痛 (FM) 中的疼痛敏感性可能涉及放大上升的感觉路径和减弱的下降抑制.
- 缓慢重复唤起疼痛 (SREP) 协议显示了作为FM疼痛敏感化的诊断标志物的潜力.
- 对于SREP敏感化的机制尚未完全理解,但它可能与上升促进有关,下降抑制的作用尚不清楚.
研究的目的:
- 与健康对照人群相比,量化 FM 患者的下降疼痛抑制.
- 为了检查下降疼痛抑制和SREP诱导的疼痛敏感化之间的关系.
- 调查下降疼痛抑制和临床 FM 症状之间的关联.
主要方法:
- 用条件性疼痛调制 (CPM) 范式评估了55名患有FM的女性和45名健康女性的下降性疼痛抑制.
- 使用SREP协议,对第三指的指甲施加压力刺激.
- 临床症状,包括焦虑和疲劳,通过自我报告问卷进行评估.
主要成果:
- 与对照组相比,纤维肌痛患者表现出明显更强的SREP敏感性和较弱的CPM.
- 在 FM 患者中,SREP 敏感度与 CPM 相反相关,两者都与临床症状严重程度有关.
- 缺乏CPM的FM个体报告了更严重的FM症状,焦虑和疲劳.
结论:
- 缺陷的内源性疼痛抑制是纤维肌痛疼痛敏感化的关键因素,可能解释SREP发现.
- 减少疼痛抑制可能是纤维肌痛中观察到的常见临床症状的基础.
- 需要进一步的研究,以阐明FM上升和下降疼痛路径之间的平衡.
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