Journal of Environmental Biology
pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
Search the Journal web-site through Google:
Abstract - Issue July 2009, 30 (4) Back
The effects of synthetic organoselenium compounds on
nitric oxide in DMBA - induced rat liver
Zeliha Selamoglu Talas1, Nihayet Bayraktar2, Ilknur Ozdemir3, Yetkin Gok3 and Ismet Yilmaz3
of Biology, Faculty of Arts and Science,
of Biochemistry, Faculty of Medicine,
3Department of Chemistry, Faculty of Arts
Abstract: DMBA (7,12-dimethylbenz[a]anthracene)? is known to generate DNA-reactive species during their metabolism, which may enhance oxidative stress in cells. Since selenium is known as a non-enzymic antioxidant, health problems induced by many environmental pollutants, have stimulated the evaluation of relative antioxidant potential of selenium and synthetic organoselenium compounds. Therefore, we aimed to evaluate chemopreventive potential of synthetic organoselenium compounds by monitoring level of liver nitric oxide. In this study, adult female Wistar rats were treated with DMBA and the novel organoselenium compounds (Se I) and (Se II) in the determined doses. DMBA-induced in rats, the effects of organoselenium compounds on nitric oxide levels in rat liver was studied. In this study, it has been observed a statistically significant increase in (Nitric Oxide) levels for the liver of rat exposed to DMBA (p<0.05). However with administration of Se I and Se II there was a statistically significant decrease in NO levels (p<0.05). The ability of the organoselenium compounds to prevent oxidative damage induced by DMBA in rat livers was rationalized. Protection against nitric oxide measured in Se I and Se II treated groups were provided by synthesized organoselenium compounds. Se I and Se II both provided chemoprevention against DMBA-induced oxidative stress in rat liver.
Key words: DMBA, Liver, Nitric oxide, Rat and synthetic organoselenium compounds
Copyright ? 2009 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).