Effect of Antibiotic Administration on Urinary Guanidinoacetic Acid Excretion in Renal Disease
It is known that there is a marked decrease in urinary guanidinoacetic acid (GAA) excretion in patients with uremia1–3. We have previously reported that urinary GAA (U-GAA) excretion is significantly decreased in experimental animals injected with 20 to 50 mg/kg of gentamicin4. Our further study also showed that such a reduction in GAA excretion is seen even in animals injected with 5 mg/kg, a relatively small dose of gentamicin5. These findings have led some to suggest that GAA would be useful for the early diagnosis of antibiotic-induced nephrotoxicity.
KeywordsUrea Creatinine Toluene Cytosol Ampicillin
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