Enzymuria in carboplatin nephrotoxicity |
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| Authors: | E Damiani M T Cattaneo C Sessa E Zucca F Cavalli A Bertolini A Libretti R Beretta |
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| Institution: | Clinica Medica, Università degli Studi di Milano-Ospedale L. Sacco, Italia. |
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| Abstract: | Urinary excretion of N-acetyl-beta-glucosaminidase (NAG) is an early marker of nephrotoxicity. NAG activity was assayed by the fluorimetric method of Leaback and Walker in 17 patients treated (22 courses) with carboplatin (CBDCA, 220-550 mg/m2) before infusion and 24, 48, 72 and 96 h after. Increased excretion of NAG, a sensitive index of renal tubular damage, was observed following 10 of the 22 courses. A transient increase in plasma creatinine and/or abnormal proteinuria was observed in 6 cases. Impaired renal function prior to therapy seems to be a predisposing factor to the nephrotoxicity. |
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