在结肠炎期间演变的酸性微环境为pH敏感的阿片类药物提供了选择性的止痛标
Claudius E Degro1,2, Nestor Nivardo Jiménez-Vargas1, Quentin Tsang1
1Gastrointestinal Diseases Research Unit, Kingston General Hospital, Queen´s University, Kingston, ON, Canada.
Pain
|June 16, 2023
概括
一种新型的pH敏感阿片类药物N-(3-fluoro-1-phenethylpiperidine-4-yl) -N-phenyl propionamide (NFEPP),在炎症期间有效地控制大肠炎的疼痛. NFEPP的目标是酸性组织,提供无常见阿片类药物副作用的止痛.
科学领域:
- 药理学 药理学是指药理学的学科.
- 胃肠病学 胃肠病学
- 疼痛管理 疼痛管理
背景情况:
- 炎症状况,如大肠炎,创造了一个酸性微环境.
- 依赖pH的阿片类药物为内脏疼痛管理提供了一种新的策略,潜在的副作用较少.
- 在发育炎症期间,依赖pH的阿片类药物的疗效及其对人类恶性受体的影响仍未研究.
研究的目的:
- 为了研究pH敏感的芬太尼类比物NFEPP在小鼠中因酸糖酸盐引起的大肠炎的进展过程中的止痛效果和副作用概况.
- 为了确定NFEPP是否可以在酸性条件下抑制人类结肠恶感受体.
- 在结肠炎的背景下,比较NFEPP与芬太尼的作用.
主要方法:
- 在小鼠中使用德克斯硫酸盐诱导大肠炎,并监测炎症进展.
- 测量了对结直肠张张的视觉运动反应,以评估 nociception.
- 评估了NFEPP和芬太尼的疗效和副作用 (胃肠道过渡,排便,低氧症).
- 在酸性条件下测试了NFEPP对机械诱导的人类结肠受体激活的作用.
主要成果:
- 在大肠炎的整个发展过程中,NFEPP表现出剂量依赖的抗性感受作用,在炎症的高峰期达到顶峰.
- 芬太尼不论疾病阶段如何,都能提供止痛,但会引起显著的副作用.
- 与芬太尼一起观察到的NFEPP没有显著的胃肠道或呼吸系统副作用.
- 在模拟的炎症和酸性条件下,NFEPP成功抑制了人类结肠恶感受体.
结论:
- 在急性结肠炎期间,NFEPP提供有效的止痛药,在炎症高峰期具有最大的疗效.
- 在酸性结肠组织中NFEPP的向作用将全身副作用降到最低.
- 在性结肠炎爆发等疾病中,NFEPP是安全有效的疼痛管理的有希望的治疗候选者.
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