在体外结构-活性关系和新出现的2-基胺醇"尼塔"阿片类药物的法医病例系列
Liam M De Vrieze1, Sara E Walton2, Eline Pottie1
1Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium.
Archives of toxicology
|June 14, 2024
概括
称为尼塔的新型合成阿片类药物构成公共卫生风险. 这项研究比较了尼塔的结构变化,发现N-pyrrolidino替代增强μ-阿片类受体 (MOR) 活性,而去除基组会降低功效.
科学领域:
- 药理学 药理学是指药理学的学科.
- 药用化学 医学化学
- 法医科学 法医科学 法医科学
背景情况:
- 2-基胺醇"尼塔"类阿片类药物对公众健康造成了重大和不断升级的担忧.
- 有限的系统数据存在于对2-基胺醇核心结构修改如何影响μ-阿片类受体 (MOR) 活性.
研究的目的:
- 调查新型和已知的尼塔类型的体外结构-活性关系.
- 为了确定特定的结构修改 (环置换,基去除,N-脱甲基化) 对MOR激活的影响.
主要方法:
- 通过两种体外测定来评估MOR激活:β-arrestin 2招募和抑制循环腺单酸盐 (cAMP) 积累.
- 评估了9种以前未被描述的尼塔与已知的类似物一起.
主要成果:
- 与N-piperidine替代品相比,N-pyrrolidino替代品通常会增强MOR激活,除了4'-OH类似物外.
- 移除5-基组显著降低了尼塔的功效.
- N-desethyl修饰保留了显著的MOR活性,通常具有略有降低的功效,除了N-desethyl isotonitazene,它比其母化合物更强效.
- 对85例法医病例的分析显示,几种尼塔的血度很低,这表明体内活性很高.
结论:
- 结构修改,特别是N-pyrrolidino替代,可以显著调节MOR的尼塔功效.
- 5 - 基组对于高强度至关重要,其去除大大降低了活性.
- 法医数据证实了各种尼塔的高强度和危害潜力,需要提高公共卫生意识和立法行动.
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