4.4 Article

Influence of the NRGN gene on intellectual ability in schizophrenia

期刊

JOURNAL OF HUMAN GENETICS
卷 58, 期 10, 页码 700-705

出版社

NATURE PUBLISHING GROUP
DOI: 10.1038/jhg.2013.82

关键词

diplotype; GWAS; NRGN; performance IQ; schizophrenia

资金

  1. Japanese Ministry of Health, Labor and Welfare [H22-seishin-ippan-001]
  2. Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI [22390225]
  3. CREST of JST
  4. Japan Foundation for Neuroscience and Mental Health

向作者/读者索取更多资源

Genome-wide association studies have reported an association between schizophrenia and rs12807809 of the neurogranin (NRGN) gene. We have recently found that an rs12807809-rs12278912 haplotype of the gene is associated with schizophrenia in a Japanese population and that the NRGN expression of the high-risk TG haplotype is lower than that of the protective TA haplotype in immortalized lymphoblasts. In this study, we investigated the influences of neurogranin genotypes (rs12807809 and rs12278912), haplotypes and diplotypes and genetic variant-diagnosis interactions on intellectual ability in 414 Japanese patients with schizophrenia and healthy subjects. We detected possible effects of the genome-wide screen-supported rs12807809, haplotypes, diplotypes and their genetic variant-diagnosis interactions on intellectual abilities at the threshold level of P<0.05. After applying Bonferroni correction for 13 genotype measures and setting P-values for significance (P<0.0039; 0.05/13), three effects remained significant: the rs12807809-rs12278912 diplotype-diagnosis interactions on performance intelligence quotient (CG/CG: P=3.9 x 10(-13); TA/TA: P=1.1 x 10(-7)) and TA/TA diplotype on performance intelligence quotient in patients with schizophrenia (P=8.2 x 10(-8)) remained significant. The intellectual abilities of the high-risk TG/TG diplotype of the neurogranin gene were lower compared to those with the non-risk TA/TA diplotype. Our findings suggest that the genetic risk variant in the neurogranin gene may be related to reduced intellectual ability.

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