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Related Experiment Videos

Isoniazid acetylation and polymorphism in humans.

M Saleem, S A Malik, M Ahmed

    JPMA. the Journal of the Pakistan Medical Association
    |November 1, 1989
    PubMed
    Summary

    This study identified isoniazid acetylator phenotypes in 157 individuals. Results showed 31.8% of subjects were fast acetylators of isoniazid (INH), impacting tuberculosis treatment.

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    Area of Science:

    • Pharmacogenomics
    • Clinical Pharmacology
    • Tuberculosis Research

    Background:

    • Isoniazid (INH) is a primary drug for tuberculosis treatment.
    • Individual differences in drug metabolism, such as acetylation, can affect treatment efficacy and safety.
    • Understanding acetylator phenotypes is crucial for optimizing tuberculosis therapy.

    Purpose of the Study:

    • To determine the prevalence of slow and fast isoniazid acetylator phenotypes in a population from Rawalpindi and Islamabad.
    • To correlate acetylator status with plasma isoniazid concentrations.

    Main Methods:

    • A cohort of 157 subjects (80 healthy individuals and 77 tuberculosis patients) was studied.
    • Plasma isoniazid concentrations were measured chemically six hours post-drug administration.
    • Acetylator status was inferred based on plasma drug levels.

    Main Results:

    • The study found that 31.8% of the subjects exhibited a fast acetylator phenotype for isoniazid.
    • This indicates a significant proportion of the studied population rapidly metabolizes the drug.

    Conclusions:

    • The prevalence of fast isoniazid acetylators in this population is substantial.
    • This finding has implications for isoniazid dosage and tuberculosis treatment strategies in the region.

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