Acute toxic effect of lipopolysaccharides to blood tissue in rats and responses to vitamin E and sodium selenite.

Abstract

This work has been prepared to find out changes in the biochemicals with DNA damage, micronucleus, and apoptosis to lipopolysaccharides (LPS) alone or vitamin E (VE) and sodium selenite (SS) in rats' blood tissue. Rats were divided into eight groups according to the treatment into control vitamin E (VE) treatment group (200mg/kg bw), sodium selenite (SS) treatment (0.35mg/kg bw) group, VE+SS treatment group (200+0.35mg/kg bw), LPS treatment group (10mg/kg bw), LPS+VE (10+200mg/kg bw), LPS+SS treatment (10+0.35mg/kg bw), and LPS+SS+VE treatment (10+0.35+200mg/kg bw) group for 6hr. LPS increased malondialdehyde (MDA) level and decreased antioxidant enzymes' activities in rat erythrocytes and leukocytes. DNA damage of leukocytes with comet assay and RAPD-PCR was detected in LPS treatment group. The levels of micronucleus and apoptosis percentage were increased significantly at the end of 6hr. VE and/or SS protected the LPS-induced erythrocytes and leukocytes against damage as they have caused amelioration of rats by altering the results. As a result, the co-administration of VE and/or SS against LPS-induced damage provides protection. VE and/or SS in patients and animal models with sepsis must be taken in the diet because they are protective against the cellular degradation caused by oxidative damage. PRACTICAL APPLICATIONS: LPS obtained from E. coli is used more frequently in experimental sepsis studies. When LPS is administered to experimental animals, interstitial pneumonia, adult respiratory fatal syndrome, acute tubular necrosis, and fatal effects such as coagulopathy and hypoglycemia may be seen in these animals. The co-treatment of VE and SS may be more effective than using them alone against LPS.