title: [Association study and meta-analysis of the apolipoprotein gene and schizophrenia].
abstract: BACKGROUND
  Schizophrenia is a mental disorder of unknown etiology. Epidemiological, association and linkage studies suggest the presence of genetic factors in the development of this disorder. Numerous studies have been undertaken to gain insight on the role of the ApoE gene in schizophrenia. However, findings remain controversial.
  
  
  OBJECTIVE
  The current study analyzed the ApoE gene among schizophrenic patients of Mexican origin.
  
  
  CONCLUSIONS
  No significant differences were found in the distribution of alleles (chi2=0.94, df=2, p=0.62), or genotypes (chi2=1.02, df=2, p=0.59). The meta-analysis comprising 19 association studies (including the present one) showed that the risk allele epsilon4 of ApoE is not associated with the development of schizophrenia (OR 1.04, CI 95%=0.90-1.21, p=0.184) in the absence of heterogeneity (chi2=18.8, df=18, p=0.4).
authors.affiliation: Escuela de Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, Mexico DF, México. alfonso_tovillaz@yahoo.com
authors.forename: Carlos
authors.initials: C
authors.lastname: Tovilla-Zárate
authors.forename: Beatriz
authors.initials: B
authors.lastname: Camarena
authors.forename: Rogelio
authors.initials: R
authors.lastname: Apiquian
authors.forename: Humberto
authors.initials: H
authors.lastname: Nicolini
mesh_terms: D001057:Apolipoproteins E / Q000235:genetics*; D006801:Humans; D012559:Schizophrenia / Q000235:genetics*
chemical_list: D001057:Apolipoproteins E