title: No association between the protein tyrosine phosphatase, receptor-type, Z Polypeptide 1 (PTPRZ1) gene and schizophrenia in the Japanese population.
abstract: NRG1-ERBB signaling influences the risk for schizophrenia pathology. A recent study has reported that MAGI1, MAGI2, and protein tyrosine phosphatase, receptor-type, Z polypeptide 1 (PTPRZ1; located on 7q31.3) gene products regulate the NRG1-ERBB4 signaling pathway, and PTPRZ1 is associated with schizophrenia in a Caucasian population. By applying a gene-based association concept, we analyzed any association between PTPRZ1 tagging SNPs and schizophrenia in the Japanese population (576 schizophrenics and 768 controls). After linkage disequilibrium analysis, 29 single nucleotide polymorphisms (SNPs) were genotyped using a 5'-exonuclease allelic discrimination assay. We found a significant association of one tagging SNP in a genotype-wise analysis (P = 0.007); however, this might be resulted from type I error due to multiple testing (P = 0.17 after SNPSpD correction). No association was observed between schizophrenic patients and controls in either allelic, genotypic, or haplotypic analyses. Our results therefore suggest that PTPRZ1 is unlikely to be related to the development of schizophrenia in the Japanese population.
authors.affiliation: Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan. y-ito@med.nagoya-u.ac.jp
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Ito
authors.forename: Shinnosuke
authors.initials: S
authors.lastname: Yamada
authors.forename: Nagahide
authors.initials: N
authors.lastname: Takahashi
authors.forename: Shinichi
authors.initials: S
authors.lastname: Saito
authors.forename: Akira
authors.initials: A
authors.lastname: Yoshimi
authors.forename: Toshiya
authors.initials: T
authors.lastname: Inada
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Noda
authors.forename: Norio
authors.initials: N
authors.lastname: Ozaki
mesh_terms: D000328:Adult; D000368:Aged; D000483:Alleles; D016022:Case-Control Studies; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D007564:Japan / Q000453:epidemiology; D015810:Linkage Disequilibrium; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D054633:Receptor-Like Protein Tyrosine Phosphatases, Class 5 / Q000235:genetics*; D012559:Schizophrenia / Q000453:epidemiology / Q000209:etiology / Q000235:genetics*
chemical_list: C516895:PTPRZ1 protein, human; D054633:Receptor-Like Protein Tyrosine Phosphatases, Class 5