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Related Experiment Videos

Opioids: a review.

Eric Chevlen1

  • 1Cancer Care Center, St. Elizabeth Hospital, 1044 Belmont Avenue, Youngstown, OH 44501, USA. echevlen@neoucom.edu

Current Pain and Headache Reports
|January 15, 2003
PubMed
Summary
This summary is machine-generated.

Opioid efficacy varies due to genetic factors like m opioid receptor variants and drug metabolism. Understanding these differences can improve pain management and reduce side effects.

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Area of Science:

  • Pharmacology
  • Genetics
  • Neuroscience

Background:

  • Clinical responses to opioid analgesics show significant variability.
  • The m opioid receptor gene has splice variants leading to diverse receptor functions.
  • Genetic polymorphisms and drug metabolism (cytochrome P-450) also contribute to response variability.

Purpose of the Study:

  • To explore the molecular and genetic factors underlying variable clinical responses to opioids.
  • To identify key mechanisms contributing to opioid analgesic tolerance.
  • To review the clinical utility of specific opioids and strategies for managing side effects.

Main Methods:

  • Review of recent discoveries in opioid pharmacology.
  • Analysis of genetic factors including splice variants and polymorphisms.

Related Experiment Videos

  • Examination of intracellular pathways involved in analgesic tolerance.
  • Evaluation of clinical studies on opioid use and side effect management.

    • Main Results:

    • Multiple m opioid receptor variants and genetic polymorphisms influence patient response.
    • Cytochrome P-450 enzyme variations affect opioid pharmacokinetics.
    • Intracellular pathways such as NMDA receptor and protein kinase C gamma are implicated in tolerance.
    • Clinical evidence suggests limiting meperidine use and offers strategies to mitigate opioid side effects.

    Conclusions:

    • Variability in opioid response is explained by genetic factors and drug metabolism.
    • Understanding these mechanisms is crucial for personalized pain management.
    • Optimizing opioid therapy involves considering individual genetic makeup and employing strategies to manage tolerance and side effects.