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Related Experiment Videos

Deoxycytidine: a morphine antagonist.

N W Penn

    Archives Internationales De Pharmacodynamie Et De Therapie
    |May 1, 1978
    PubMed
    Summary

    Deoxycytidine effectively counteracts morphine

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    The Biochemical journal·1969

    Area of Science:

    • Neuropharmacology
    • Molecular Biology

    Background:

    • Morphine analgesia and respiratory depression are significant clinical concerns.
    • Understanding endogenous antagonists of opioid effects is crucial for developing novel therapeutics.
    • The role of DNA pyrimidines in modulating drug actions is an emerging area of research.

    Purpose of the Study:

    • To investigate the antagonistic effects of deoxycytidine on morphine in animal models.
    • To determine the specificity of deoxycytidine's action and its potential mechanism.

    Main Methods:

    • Administration of deoxycytidine to rats, rabbits, and mice.
    • Assessment of morphine's analgesic and respiratory effects.
    • Evaluation of withdrawal symptoms in morphine-dependent mice.
    • Comparative studies with cytidine and thymidine.

    Main Results:

    • Deoxycytidine antagonized morphine's analgesic effects in rats.
    • Deoxycytidine reduced morphine-induced respiratory depression in rabbits.
    • Deoxycytidine mitigated withdrawal symptoms in dependent mice without inducing abstinence.
    • Structural analogs (cytidine, thymidine) did not exhibit similar antagonistic properties, suggesting specificity.

    Conclusions:

    • Deoxycytidine acts as a specific antagonist to morphine's effects.
    • This DNA pyrimidine's action may involve synaptic localization, potentially at the synaptosome or synaptic junction.
    • Findings suggest a novel therapeutic potential for deoxycytidine in managing opioid-related effects and withdrawal.

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