title: Complement factor C4 in schizophrenia.
abstract: The complement factor C4 was studied in 165 schizophrenic patients and in 330 controls. A highly significant increase in the frequency of C4B deficiency (BQO) was found among the schizophrenic patients compared with controls (p less than 0.0005).
mesh_terms: D003181:Complement C4 / Q000172:deficiency / Q000235:genetics*; D015935:Complement C4b; D006801:Humans; D011110:Polymorphism, Genetic; D012559:Schizophrenia / Q000097:blood / Q000235:genetics*
chemical_list: D003181:Complement C4; D015935:Complement C4b