background: beta-thalassemia major is one of the major health problems in our country. many studies have confirmed the fact that, these patients have an increased susceptibility to bacterial infections. objective: in this study, we have assessed the humoral immune system in 68 thalassemic patients by measuring their serum concentration of immunoglobulin g (igg), igm, iga, c3 and c4 in order to ...

background: the serum levels of c 3 , c4, and the total hemolytic activity of complement system (ch50) of patients ex­posed to mustard gas (mg) in the battlefield were measured in this study. methods: c3 and c4 were measured by single radial immunodifusion and ch50 was evaluated according to total hemolytic activ­ity of the serum. results:   the serum levels of c 3 showed a significant increase...

background and objectives: complement proteins are some of the most important plasma proteins of the innate immune system. impaired immune function is reported in subjects who are iron deficient, and there are documents that these patients are prone to infection. this study was conducted to show whether serum c3 and c4 complement change in adult nonpregnant female with iron deficient anemia or ...