Journal
JOURNAL OF CHEMOTHERAPY
Volume 25, Issue 5, Pages 273-278Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1179/1973947812Y.0000000067
Keywords
Vancomycin; Nephrotoxicity; Once-daily administration; Twice-daily administration; Creatinine clearance; Superoxide dismutase; Histological change
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We compared the degree of nephrotoxicity of vancomycin (VCM) administered once daily and twice daily in rats. VCM was intraperitoneally administered once daily to rats at a dose of 400 mg/kg (VCM-1-treated) or administered at a dose of 200 mg/kg twice daily at 12-hour intervals (VCM-2-treated) for 7 consecutive days. Creatinine clearance was decreased more markedly in VCM-1 rats relative to VCM-2 rats, although there was no significant difference in renal accumulation of VCM between the two groups. Renal superoxide dismutase activity was lower in VCM-1 rats than that in VCM-2 rats. The magnitude of histological change in kidney tissue was in agreement with the degree of alterations in the abovementioned biochemical values. These results suggest that the nephrotoxic effect of once-daily VCM administration is more pronounced than that of the twice-daily treatment. Our findings provide fundamental evidence for the advantage in choosing a divided VCM administration to attenuate nephrotoxicity.
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