Complement components of C3 and C4 in Nigerians.
Serum complement component of C3 was lower in both Nigerian children and adults in corresponding British subjects whereas the concentrations of C4 were similar in all groups. It would appear that in the ontogeny of the complement system the concentration of C4 reaches adult level before that of C3.
D000328:Adult; D002675:Child, Preschool; D003176:Complement C3 / Q000032:analysis; D003181:Complement C4 / Q000032:analysis; D003165:Complement System Proteins / Q000032:analysis*; D006801:Humans; D007223:Infant; D008297:Male; D009549:Nigeria; D006113:United Kingdom
D003176:Complement C3; D003181:Complement C4; D003165:Complement System Proteins