Inhibition of potassium bromate-induced renal oxidative stress and hyperproliferative response by Nymphaea alba in Wistar rats.

Abstract

KBrO3-mediated renal injury and hyperproliferative response in Wistar rats. In this communication, we report the efficacy of Nymphaea alba on KBrO3 (125 mg/kg body weight, intraperitoneally) caused reduction in renal glutathione content, renal antioxidant enzymes and phase-II metabolising enzymes with enhancement in xanthine oxidase, lipid peroxidation, gamma-glutamyl transpeptidase and hydrogen peroxide (H202). It also induced blood urea nitrogen, serum creatinine and tumor promotion markers, viz., ornithine decarboxylase (ODC) activity and DNA synthesis. Treatment of rats with Nymphaea alba (100 and 200 mg/kg body weight) one hour before KBrO3 (125 mg/kg body weight, i.p.) resulted in significant decreases in xanthine oxidase (P < 0.05), lipid peroxidation, gamma-glutamyl transpeptidase, H202 generation, blood urea nitrogen, serum creatinine, renal ODC activity and DNA synthesis (P < 0.001). Renal glutathione content, glutathione metabolizing enzymes and antioxidant enzymes were also recovered to significant levels (P < 0.001). These results show that Nymphaea alba acts as chemopreventive agent against KBrO3-mediated renal injury and hyperproliferative response.

• Authors: Naghma Khan, Sarwat Sultana
• Journal: Journal of enzyme inhibition and medicinal chemistry (J Enzyme Inhib Med Chem) Vol. 20 Issue 3 Pg. 275-83 (Jun 2005) ISSN: 1475-6366 [Print] England
• PMID: 16119199 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Bromates
• Plant Extracts
• potassium bromate
• Creatinine
• Hydrogen Peroxide
• Glucosephosphate Dehydrogenase
• Catalase
• Glutathione Peroxidase
• Glutathione Reductase
• gamma-Glutamyltransferase
• Glutathione Transferase
• Ornithine Decarboxylase
• Glutathione

Topics

• Animals
• Blood Urea Nitrogen
• Bromates (antagonists & inhibitors, metabolism, pharmacology)
• Catalase (metabolism)
• Cell Proliferation (drug effects)
• Creatinine (blood)
• Female
• Glucosephosphate Dehydrogenase (metabolism)
• Glutathione (blood)
• Glutathione Peroxidase (metabolism)
• Glutathione Reductase (metabolism)
• Glutathione Transferase (metabolism)
• Hydrogen Peroxide (blood)
• Kidney (drug effects, metabolism)
• Lipid Peroxidation
• Nymphaea (chemistry, metabolism)
• Ornithine Decarboxylase (metabolism)
• Oxidative Stress (drug effects)
• Plant Extracts (chemistry, pharmacology)
• Rats
• Rats, Wistar
• gamma-Glutamyltransferase (metabolism)