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相关概念视频

Opioid Analgesics: Synthetic and Semisynthetic Opioids01:15

Opioid Analgesics: Synthetic and Semisynthetic Opioids

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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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Opioid Analgesics: Morphine and Other Natural Cogeners01:20

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Opioids are a class of drugs that mimic endogenous opioid peptides and act on opioid receptors, and help in pain relief. These compounds are classified as natural, synthetic, or semi-synthetic. Natural opioids, like morphine, codeine, and thebaine, are derived from the opium poppy plant (Papaver somniferum or Papaver album) and are termed opiates. Synthetic opioids are artificial, while semi-synthetic opioids combine natural and synthetic compounds. Morphine, a prototypical opioid, possesses a...
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Analgesia and Pain Management01:25

Analgesia and Pain Management

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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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Opioid Receptors: Overview01:22

Opioid Receptors: Overview

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Opioid receptors, including the mu (μ, MOR), delta (δ, DOR), and kappa (κ, KOR) types, belong to the rhodopsin family of G protein-coupled receptors. These receptors are located throughout the central and peripheral nervous systems and in non-neuronal tissues such as macrophages and astrocytes. Opioid receptor ligands can be categorized into agonists or antagonists. Highly selective agonists include [d-Ala2, MePhe4, Gly(ol)5]-enkephalin or DAMGO for MOR, [D-Pen2,...
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Phase I Oxidative Reactions: Overview01:19

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Phase I biotransformation, or functionalization, is a crucial chemical process that converts drugs and other xenobiotics into more water-soluble forms, facilitating expulsion from the body. It involves oxidative, reductive, and hydrolytic reactions that add or unveil polar functional groups on lipophilic substrates. Key players in phase I reactions are the mixed-function oxidases. Situated in liver cell microsomes, these enzymes predominantly carry out drug metabolism. They require molecular...
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Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems01:19

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Phase I biotransformation reactions are integral to drug metabolism, predominantly involving oxidative, reductive, and hydrolytic transformations. Chief among these are oxidative reactions, which enhance the hydrophilicity of xenobiotics and introduce polar functional groups to facilitate their elimination from the body.
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
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转换率:为什么构建阿片类药物转换表如此具有挑战性?

Mellar P Davis1, Mary Lynn McPherson2, Akhila Reddy3

  • 1Geisinger Medical Center, Danville, Pennsylvania. ORCID: https://orcid.org/0000-0002-7903-3993.

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此摘要是机器生成的。

转化阿片类药物,切换药物以改善疼痛缓解和减少副作用,是复杂的. 一个最近更新的 equianalgesic表为息治疗提供了实际指导,但需要更多的研究.

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科学领域:

  • 药理学 药理学是指药理学的学科.
  • 疼痛管理 疼痛管理
  • 抚慰性护理是一种缓解性护理.

背景情况:

  • 由于缺乏最高剂量,未知的治疗性血水平和不明确的剂量反应关系,难以标准化阿片类药物管理.
  • 转换或转换阿片类药物是一种常见的做法,影响20-40%的患者,以增强治疗反应和减轻毒性.
  • 由于副作用,毒性或对特定阿片类药物配方不耐受,患者经常需要转换阿片类药物.

研究的目的:

  • 审查20年来关于阿片类药物转换的文献,并讨论所涉及的复杂性.
  • 检查阿片类药物转换的各个方面,包括研究设计,结果,疼痛表型和患者特征.
  • 介绍和讨论最近更新的阿片类同痛药表,以便在息治疗中实际使用.

主要方法:

  • 20年来关于阿片类药物转换的出版文献的系统审查.
  • 分析研究设计,结果指标,疼痛表型和患者特征.
  • 对比阿片类药物等痛解剂量,转化率,途径,半衰期,代谢物和个人间的变异性.

主要成果:

  • 大多数患者从阿片类药物转换中受益,经历了改善的止痛和减少不良影响.
  • 在文献中存在各种阿片类药物转化方法,突出显示了该过程的复杂性.
  • 基于回顾性证据的最近更新的等痛表被提出为息护理的实用工具.

结论:

  • 阿片类药物转化是一种复杂但往往有益的干预措施,用于改善疼痛管理和降低毒性.
  • 虽然息治疗专家对理想的同痛表缺乏共识,但新的表提供了实际指导.
  • 为了验证和完善阿片类药物转化数据和实践,进一步的强大,精心设计的研究是必不可少的.