title: Phenolic extract of soybean (Glycine max) attenuates cisplatin-induced nephrotoxicity in rats.
abstract: The present study investigated the modulatory role of phenolic extract of soybean (PESB) in a rat model of nephrotoxic acute renal failure induced by cisplatin. Cisplatin (2 mg/kg/day) was administered to the rats for 5 days and the animals were pretreated with PESB (250-1000 mg/kg). Blood urea nitrogen reduced by 49.8% and 59.0%, serum creatinine by 34.7% and 62.1% and urinary N-acetyl-beta-D-glucosaminidase also decreased by 37.7% and 49.2% following treatment with 250- and 500-mg/kg doses of the extract respectively in the cisplatin-treated rats. The extract also significantly increased renal myeloperoxidase activity by 26.8% and 40.6% at these doses. PESB also decreased renal xanthine oxidase activity and serum nitrate/nitrite in the cisplatin-treated rats. In addition, PESB significantly attenuated the marked renal oxidative damage that accompanied cisplatin treatment. The extract improved liver histology and significantly increased the activities of the antioxidant enzymes measured [superoxide dismutase, catalase, glutathione-S-transferase], prevented glutathione depletion and decreased malondialdehyde level following cisplatin treatment. Furthermore, cisplatin-induced decrease in the activities of glucose-6-phosphatase and 5'-nucleotidase in these rats was attenuated only at 250 mg/kg dose of the extract. We concluded therefore that PESB via antioxidant and possibly anti-inflammatory actions offered protective benefit against cisplatin-mediated acute toxic injury to the kidney.
authors.affiliation: Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
authors.forename: Martins
authors.initials: M
authors.lastname: Ekor
authors.forename: Godwin O
authors.initials: GO
authors.lastname: Emerole
authors.forename: Ebenezer O
authors.initials: EO
authors.lastname: Farombi
mesh_terms: D015720:5'-Nucleotidase / Q000187:drug effects / Q000378:metabolism; D000118:Acetylglucosaminidase / Q000652:urine; D058186:Acute Kidney Injury / Q000139:chemically induced / Q000473:pathology / Q000517:prevention & control*; D000818:Animals; D000970:Antineoplastic Agents / Q000633:toxicity*; D000975:Antioxidants / Q000494:pharmacology*; D002945:Cisplatin / Q000633:toxicity*; D004195:Disease Models, Animal; D005952:Glucose-6-Phosphatase / Q000187:drug effects / Q000378:metabolism; D007668:Kidney / Q000187:drug effects / Q000201:enzymology / Q000473:pathology; D007677:Kidney Function Tests; D008315:Malondialdehyde / Q000378:metabolism; D009566:Nitrates / Q000097:blood; D009573:Nitrites / Q000097:blood; D010088:Oxidoreductases / Q000187:drug effects / Q000378:metabolism; D009195:Peroxidase / Q000187:drug effects / Q000378:metabolism; D019800:Phenol / Q000737:chemistry; D010936:Plant Extracts / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D013025:Glycine max / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D000975:Antioxidants; D009566:Nitrates; D009573:Nitrites; D010936:Plant Extracts; D019800:Phenol; D008315:Malondialdehyde; D010088:Oxidoreductases; D009195:Peroxidase; D015720:5'-Nucleotidase; D005952:Glucose-6-Phosphatase; D000118:Acetylglucosaminidase; D002945:Cisplatin