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Related Experiment Videos

Age-dependent aminoglycoside nephrotoxicity.

K Fujita, T Sayama, S Abe

    The Journal of Urology
    |September 1, 1985
    PubMed
    Summary
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    Elderly patients showed higher urinary N-acetyl-beta-D-glucosaminidase levels after aminoglycoside treatment, indicating increased kidney vulnerability with aging. This suggests age impacts drug-induced kidney damage risk.

    Area of Science:

    • Nephrology
    • Geriatric Medicine
    • Pharmacology

    Background:

    • Aminoglycosides are potent antibiotics with known nephrotoxic potential.
    • Kidney function and drug metabolism can be altered by the aging process.

    Purpose of the Study:

    • To investigate the impact of aging on kidney response to aminoglycoside antibiotics.
    • To assess urinary N-acetyl-beta-D-glucosaminidase (NAG) as a biomarker for age-related nephrotoxicity.

    Main Methods:

    • Urinary NAG activity was measured in 41 patients before and after a 5-day course of aminoglycoside.
    • Patients were stratified into age groups to analyze differences in NAG levels.

    Main Results:

    • Pretreatment NAG levels were elevated in elderly patients.

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  • The increase in urinary NAG activity post-treatment was significantly higher in older individuals.
  • These findings suggest a heightened susceptibility of the aging kidney to aminoglycoside-induced damage.

    • Conclusions:

    • Aging is associated with increased kidney vulnerability to aminoglycoside nephrotoxicity.
    • Urinary NAG is a sensitive indicator of age-related kidney injury from these antibiotics.
    • Clinical monitoring for nephrotoxicity may need age-specific considerations.