title: Association study of apolipoprotein E epsilon4 with clinical phenotype and clozapine response in schizophrenia.
abstract: Schizophrenic patients with the apolipoprotein E (APOE = gene; apoE = protein) epsilon4 allele exhibited lower psychosis scores than patients without the epsilon4 allele in previous reports. The present study tested the hypothesis that the APOE epsilon4 allele confers association with the clinical manifestations of schizophrenia or clozapine response. A total of 95 schizophrenic patients who were treatment resistant were included in the study. The results demonstrated that the presence of the APOE epsilon4 allele did not influence the response to clozapine in schizophrenic patients, neither was the baseline psychopathology related to the APOE epsilon4 allele. Given the multiple functions of the apoE protein in the brain, further study of the influence of APOE on CNS medication response is needed.
authors.affiliation: Department of Psychiatry, Veterans General Hospital-Taipei, Taipei, Taiwan, ROC.
authors.forename: C J
authors.initials: CJ
authors.lastname: Hong
authors.forename: Y W
authors.initials: YW
authors.lastname: Yu
authors.forename: C H
authors.initials: CH
authors.lastname: Lin
authors.forename: H L
authors.initials: HL
authors.lastname: Song
authors.forename: H C
authors.initials: HC
authors.lastname: Lai
authors.forename: K H
authors.initials: KH
authors.lastname: Yang
authors.forename: S J
authors.initials: SJ
authors.lastname: Tsai
mesh_terms: D000328:Adult; D000483:Alleles; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D053327:Apolipoprotein E4; D001057:Apolipoproteins E / Q000378:metabolism*; D003024:Clozapine / Q000627:therapeutic use*; D004247:DNA / Q000032:analysis / Q000235:genetics; D005260:Female; D005838:Genotype; D006801:Humans; D008297:Male; D010641:Phenotype; D011569:Psychiatric Status Rating Scales; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012559:Schizophrenia / Q000097:blood* / Q000188:drug therapy*; D012565:Schizophrenic Psychology
chemical_list: D014150:Antipsychotic Agents; D053327:Apolipoprotein E4; D001057:Apolipoproteins E; D004247:DNA; D003024:Clozapine