title: Levels of some complement components in azoospermic, oligospermic and normospermic Nigerian men.
abstract: The levels of complement components (C1q, C4, C3 and C3d) were measured in the sera of nine azoospermic Nigerian men and compared with those of 12 oligospermic and 19 normospermic Nigerian men. The mean values of C1q, C4, C3 and C3d for azoospermic men showed no significant difference from those obtained for the other men. Generally, the individual sera from the azoospermic men did not show abnormally lowered levels of any of the complement components when compared with values obtained for the normospermic group.
mesh_terms: D001327:Autoimmune Diseases / Q000276:immunology*; D003166:Complement Activating Enzymes / Q000032:analysis; D003172:Complement C1 / Q000032:analysis; D015922:Complement C1q; D003176:Complement C3 / Q000032:analysis; D015933:Complement C3d; D003181:Complement C4 / Q000032:analysis; D003165:Complement System Proteins / Q000032:analysis*; D006801:Humans; D008297:Male; D009845:Oligospermia / Q000276:immunology*; D013094:Spermatozoa / Q000276:immunology*
chemical_list: D003172:Complement C1; D003176:Complement C3; D003181:Complement C4; D015922:Complement C1q; D015933:Complement C3d; D003165:Complement System Proteins; D003166:Complement Activating Enzymes