Effect of ethanol extract of Graptophyllum pictum (L.) Griff. on cisplatin induced nephrotoxicity in rats
The purpose of the present study is to investigate whether the alcoholic extract of Graptophyllum pictum (L.) Griff. could decrease the intensity of nephrotoxicity in albino rats. Cisplatin at a single dose of 12 mg/kg body weight was administered intraperitonially to albino male Wistar rats. Nephrotoxicity was assessed by determining the serum creatinine and urea levels as well as renal antioxidant status in rats after cisplatin administration. Ethanolic extract of G. pictum at 150 and 300 mg/kg body weight was administered orally after cisplatin injection for 15 days. The extracts could significantly reduce the elevated serum creatinine and urea levels. Renal antioxidant defence systems, such as superoxide dismutase, catalase, glutathione peroxidase activities and reduced glutathione level, depleted by cisplatin therapy were restored to normal by treatment with the extract. Cisplatin induced lipid peroxidation was also found markedly reduced by treatment with the extract. This result indicated that ethanolic extract of G. pictum rendered significant preventive effect against cisplatin induced nephrotoxicity.