title: Anticarcinogenic effect of Nymphaea alba against oxidative damage, hyperproliferative response and renal carcinogenesis in Wistar rats.
abstract: The present study investigates the prophylactic effect of Nymphaea alba against ferric nitrilotriacetate (Fe-NTA)-induced renal oxidative stress, hyperproliferative response and renal carcinogenesis in Wistar rats. Treatment with Fe-NTA (9 mg Fe/kg body weight, intraperitoneally) enhanced iron-ascorbate-induced renal lipid peroxidation, xanthine oxidase, gamma-glutamyl transpeptidase and hydrogen peroxide (H2O2) generation with reduction in renal glutathione content, antioxidant enzymes, viz., glutathione peroxidase, glutathione reductase, catalase, glucose-6-phosphate dehydrogenase and phase-II metabolising enzymes such as glutathione-S-transferase and quinone reductase. It also elevated the levels of blood urea nitrogen, serum creatinine, ornithine decarboxylase (ODC) activity and thymidine [3H] incorporation into renal DNA. It also enhanced DEN-initiated renal carcinogenesis by increasing the percentage incidence of renal tumors. Treatment of rats orally with N. alba (100 and 200 mg/kg body weight) resulted in significant decrease in gamma-glutamyl transpeptidase, lipid peroxidation, xanthine oxidase, H2O2 generation, blood urea nitrogen, serum creatinine, renal ODC activity, DNA synthesis (p < 0.001) and incidence of tumors. Renal glutathione content (p < 0.01), glutathione metabolizing enzymes (p < 0.001) and antioxidant enzymes were also recovered to significant level (p < 0.001). Thus, our results show that N. alba is a potent chemopreventive agent and suppresses Fe-NTA-induced oxidative stress, hyperproliferative response and renal carcinogenesis in Wistar rats.
authors.affiliation: Section of Chemoprevention and Nutrition Toxicology, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard, Hamdard University, New Delhi, India.
authors.forename: Naghma
authors.initials: N
authors.lastname: Khan
authors.forename: Sarwat
authors.initials: S
authors.lastname: Sultana
mesh_terms: D000818:Animals; D016588:Anticarcinogenic Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000378:metabolism; D001806:Blood Urea Nitrogen; D049109:Cell Proliferation / Q000187:drug effects; D003404:Creatinine / Q000097:blood; D004247:DNA / Q000096:biosynthesis / Q000187:drug effects; D004249:DNA Damage / Q000187:drug effects; D004798:Enzymes / Q000187:drug effects / Q000378:metabolism; D005290:Ferric Compounds / Q000633:toxicity; D007668:Kidney / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D007680:Kidney Neoplasms / Q000517:prevention & control*; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D009571:Nitrilotriacetic Acid / Q000031:analogs & derivatives* / Q000633:toxicity; D030721:Nymphaea / Q000737:chemistry*; D009955:Ornithine Decarboxylase / Q000187:drug effects / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects*; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar
chemical_list: D016588:Anticarcinogenic Agents; D000975:Antioxidants; D004798:Enzymes; D005290:Ferric Compounds; D010936:Plant Extracts; D004247:DNA; D003404:Creatinine; D009955:Ornithine Decarboxylase; D009571:Nitrilotriacetic Acid; C020326:ferric nitrilotriacetate