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Related Experiment Videos

Oxisuran metabolism in the monkey.

M C Crew, L Mitchell, F de la Iglesia

    Drug Metabolism and Disposition: the Biological Fate of Chemicals
    |January 1, 1975
    PubMed
    Summary

    Rhesus monkeys exhibit similar oxisuran biotransformation pathways to rats and dogs, but with longer elimination half-lives, suggesting potential as immunological models. Further evaluation is warranted despite differences in sulfone metabolite presence.

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    Area of Science:

    • Pharmacokinetics and Drug Metabolism
    • Immunology
    • Comparative Toxicology

    Background:

    • Oxisuran is a drug requiring metabolic assessment for potential therapeutic use.
    • Understanding xenobiotic metabolism in animal models is crucial for human health predictions.
    • Rhesus monkeys are frequently used in biomedical research, necessitating characterization of their metabolic capabilities.

    Purpose of the Study:

    • To investigate the metabolic fate of oxisuran in Rhesus monkeys.
    • To compare oxisuran biotransformation pathways in Rhesus monkeys with those in other species (rats, dogs).
    • To evaluate the suitability of Rhesus monkeys as an immunological model for humans based on oxisuran metabolism.

    Main Methods:

    • Administration of oxisuran to Rhesus monkeys.
    • Analysis of plasma and urine samples to identify metabolites.
    • Pharmacokinetic analysis to determine biotransformation and elimination half-lives.
    • Comparison of metabolic profiles with existing data from rats and dogs.

    Main Results:

    • Oxisuran undergoes oxidation to a sulfone metabolite in Rhesus monkeys.
    • The observed biotransformation pathways are consistent with those in rats and dogs.
    • Oxisuran sulfone was not detected in human plasma or urine.
    • Elimination and biotransformation half-lives in Rhesus monkeys were shorter than in humans but longer than in rats and dogs.

    Conclusions:

    • Rhesus monkeys share key oxisuran metabolic pathways with rats and dogs.
    • The absence of oxisuran sulfone in humans suggests a potential metabolic difference, but does not preclude Rhesus monkey use.
    • The longer elimination and biotransformation half-lives in Rhesus monkeys compared to rodents support their consideration as a suitable immunological model for humans.

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