ANTIOXIDATIVE EFFECT OF HELIOTROPIUM EUROPIUM ALCOHOLIC LEAVES EXTRACT IN ALBINO MALE RATS EXPOSED TO OXIDATIVE STRESS.

Abstract

The present study aimed to investigate someAntioxidant effects of alcoholic leaves extract of Heliotropium by measurement some antioxidant levels such as (glutathione and superoxide dismutase activity ),and the levels of Malondialdehyde (MDA), and peroxy nitrate radical( ONOO._ )and somebiochemical parameter such as total protein, albumin and urea in male rats exposed to oxidative stress by hydrogen peroxide (0.5% )in drinking water throughout the experimental period (30) days, and comparison these effects with the effects of the vitamin C as well known anti-oxidant . For purpose of this study preliminary experiments were carried out to find the most effective dose of Heliotropiumextract and was found (300) mg / kg of body weight. (35) male albino rats(4-5) months and( 245-280gm weight) were divided to (7) groups both Group included (5) rats as follows: The control group, hydrogen peroxide (H2O2 group,, Heliotropium extract group. H2O2+ Heliotropium extract group. (Heliotropium) Extract + Vitamin C group, .H2O2 + Vitamin C group. H2O2+ extract of Heliotropium + vitamin C group, The results of study showed that the oxidative stress by hydrogen peroxide led to a significant decrease in the concentration of glutathione activity of the enzyme SOD, total protein and albumin when compared with the control group. And a significant increase in the concentration of MDA, peroxynitrate radical and urea. Where the treatment of animals with Heliotropium + H2O2 led to a significant increase in the concentration of glutathione, SOD activity, total protein and albumin compared with a group of hydrogen peroxide. And a significant decrease in the concentration of MDA peroxy nitrite radical and urea compared with a group of hydrogen peroxide. The treatment of animals exposed to oxidative stress with vitamin C (250 mg / kg of body weight) for 30 days showed a significant increase in the concentration of glutathione enzyme SOD activity, total protein and albumin when compared with hydrogen peroxide. And a significant decrease in the concentration of MDA and peroxynitrite radical. And non-significant differences in the concentration of urea compared with a group of hydrogen peroxide. Well the treatment of animals with vitamin C and extract of Heliotropium has led to a significant increase in the concentration of glutathione SOD activity total protein and albumin when compared with a hydrogen peroxide group, and a significant decrease in the concentration of MDA, peroxy nitrite radicals and urea compared with hydrogen peroxide.