title: Distribution of haplotypes derived from three common variants of the NR4A2 gene in Japanese patients with schizophrenia.
abstract: Dysregulation in dopaminergic neurotransmission might play a role in the pathogenesis of schizophrenia, and therefore genetic components of the dopamine (DA) pathway may confer risk. The NR4A2 (Nurr1) gene is essential for the development and maintenance of mesencephalic DA-synthesizing neurons. Moreover, Nurr1 forms a heterodimer with the retinoid X receptor and disturbances in the retinoid-signaling cascade may be involved in susceptibility to schizophrenia. To investigate the potential genetic contribution of NR4A2, we performed a case-control association study using three common variants in the gene [-2922(C)2-3, IVS6 + 17 approximately +18insG, EX8 + 657(CA)9-10] that were in strong linkage disequilibrium with each other. We did not detect a significant allelic or genotypic association. Haplotypes derived from all three polymorphisms generated similar results. These data do not support the notion that the NR4A2 gene plays a major role in risk for schizophrenia among Japanese individuals.
authors.affiliation: Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako-city, Saitama 351-0198, Japan.
authors.forename: Yoshimi
authors.initials: Y
authors.lastname: Iwayama-Shigeno
authors.forename: Kazuo
authors.initials: K
authors.lastname: Yamada
authors.forename: Tomoko
authors.initials: T
authors.lastname: Toyota
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Shimizu
authors.forename: Eiji
authors.initials: E
authors.lastname: Hattori
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Yoshitsugu
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Fujisawa
authors.forename: Yukako
authors.initials: Y
authors.lastname: Yoshida
authors.forename: Toshio
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Michio
authors.initials: M
authors.lastname: Toru
authors.forename: Akeo
authors.initials: A
authors.lastname: Kurumaji
authors.forename: Sevilla
authors.initials: S
authors.lastname: Detera-Wadleigh
authors.forename: Takeo
authors.initials: T
authors.lastname: Yoshikawa
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D004268:DNA-Binding Proteins / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D007564:Japan; D015810:Linkage Disequilibrium; D008297:Male; D008875:Middle Aged; D009154:Mutation; D057126:Nuclear Receptor Subfamily 4, Group A, Member 2; D011110:Polymorphism, Genetic; D012559:Schizophrenia / Q000235:genetics*; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D004268:DNA-Binding Proteins; C539882:NR4A2 protein, human; D057126:Nuclear Receptor Subfamily 4, Group A, Member 2; D014157:Transcription Factors