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相关概念视频

Opioid Analgesics: Synthetic and Semisynthetic Opioids01:15

Opioid Analgesics: Synthetic and Semisynthetic Opioids

426
Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
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Updated: Sep 10, 2025

Author Spotlight: An Efficient Methodology to Confidently Differentiate and Characterize Fentanyl Analogs
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对洛佩拉胺干扰的更新芬太尼免疫试验的评估

Michael E Walsh1,2, Grace R Williams3, Paul J Jannetto4

  • 1Department of Pathology and Laboratory Medicine, Dartmouth Health, Lebanon, NH, United States.

The journal of applied laboratory medicine
|August 20, 2025
PubMed
概括

洛佩拉米德及其代谢物在某些免疫测试中可能导致假阳性芬太尼测试结果. 这突显出需要仔细解释尿液药物查结果,以避免误诊.

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科学领域:

  • 临床化学
  • 毒理学
  • 药理学

背景情况:

  • 洛佩拉米德是一种阿片类受体激动剂,用于治疗腹.
  • 之前的研究发现了洛佩拉米德与芬太尼免疫测试的交叉反应性.
  • 现在有新的芬太尼免疫测试装置可供临床使用.

研究的目的:

  • 用新的芬太尼免疫测试来评估洛佩拉米德及其代谢物的交叉反应性.
  • 在药物测试中评估洛佩拉米德的交叉反应性的临床影响.

主要方法:

  • 对芬太尼的交叉反应性进行了5次酶免疫测试和1次侧流测试.
  • 在无药物尿液中分析了loperamide,N-desmethyl loperamide (dLop) 和N-didesmethyl loperamide (ddLop).
  • 确定积极结果的最小反应度.

主要成果:

  • 三项芬太尼免疫测试显示与洛佩拉米德及其代谢物具有交叉反应性.
  • 免疫分析的SEFRIA和Thermo Fisher DRI测定对特定度的洛佩拉胺及其代谢物产生了反应.
  • 艾博特iCassette,ARK Fentanyl II和Lin-Zhi LZI II的测定没有显示交叉反应性.

结论:

  • 在某些芬太尼免疫测试中,洛佩拉米德及其代谢物的交叉反应可能导致错误的阳性结果.
  • 精心解释尿液药物查是非常重要的.
  • 如果不考虑交叉反应,可能存在误诊.