background: determination of reference ranges of each serum protein in normal population of each country is required for studies and clinical interpretation. the aim of this study was defining reference range values of immunoglobulins and complement components in iranian healthy children. methods: this study was conducted from june 2003 to june 2006 in immunology, asthma and allergy research in...

Employing sheep erythrocytes sensitized by antibody and the first and fourth components of complement (EAC'1,4), in such a manner as to prevent the development of immune adherence (I-A) reactivity during preparation, four separate substances required for the conversion of EAC'1,4,2 to the final damaged state (E*) were identified in whole guinea pig serum by cellulose chromatography, and tentati...

Background: Inappropriate activation or blockage of the inhibition of complement system could cause tissue damages in autoimmune diseases particularly rheumatoid arthritis (RA). Defect in complement component regulation may cause damages to tissues, on the other hand, or the damaged tissue might affect the unnecessary activation of complement components.   Objective: To investigate the expressi...