Study of Protective effect of Glutathione Peroxidase (GSH-Px), Vitamin Eand Selenium on Iraqi children with Leukemia

The present study have been investigated the levels of antioxidant substances which including the enzyme glutathione peroxidase GSH-Px, vitamin E (α- tocopherol), and selenium, in order to estimate their roles of preventing the body cells against oxidation processes by free radicals, hydrogen peroxides, hydrofattyperoxides, reactive oxygen species, which attack the cell membrane causing damage of these cells resulting in mutation of DNA and accidence of various cancer diseases such as leukemia. By studying 30 female and 30 male, 2-14 years old, they were divided into three groups, each group formed 20 patients. These groups included two kinds of leukemia are acute lymphoblastic leukemia (ALL) and acute myeloblastic leukemia (AML). The concentration level of glutathione peroxidase GSH-Px, and concentration level of α- tocopheroland selenium were significant P 0.05 decrease in all groups of patients male and female in both kinds of leukemia s when compared to control group