Genome-wide association study with the risk of schizophrenia in a Korean population

Schizophrenia is regarded as a multifactorial and polygenic brain disorder that is attributed to different combinations of genetic and environmental risk factors. Recently, several genome‐wide association studies (GWASs) of schizophrenia have identified numerous risk factors, but the replication res...

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Published in:American journal of medical genetics. Part B, Neuropsychiatric genetics Neuropsychiatric genetics, 2016-03, Vol.171B (2), p.257-265
Main Authors: Kim, Lyoung Hyo, Park, Byung Lae, Cheong, Hyun Sub, Namgoong, Suhg, Kim, Ji On, Kim, Jeong-Hyun, Shin, Joong-Gon, Park, Chul Soo, Kim, Bong-Jo, Kim, Jae Won, Choi, Ihn-Geun, Hwang, Jaeuk, Shin, Hyoung Doo, Woo, Sung-Il
Format: Article
Language:English
Subjects:
Adult
Asian Continental Ancestry Group - genetics
Case-Control Studies
Computer Simulation
Female
Genetic Predisposition to Disease
Genetics
Genome-Wide Association Study
Humans
Introns - genetics
Male
MECR
Middle Aged
Physical Chromosome Mapping
Polymorphism, Single Nucleotide - genetics
Republic of Korea
Risk Factors
schizophrenia
Schizophrenia - genetics
single nucleotide polymorphism
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container_title American journal of medical genetics. Part B, Neuropsychiatric genetics
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creator Kim, Lyoung Hyo
Park, Byung Lae
Cheong, Hyun Sub
Namgoong, Suhg
Kim, Ji On
Kim, Jeong-Hyun
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Park, Chul Soo
Kim, Bong-Jo
Kim, Jae Won
Choi, Ihn-Geun
Hwang, Jaeuk
Shin, Hyoung Doo
Woo, Sung-Il
description Schizophrenia is regarded as a multifactorial and polygenic brain disorder that is attributed to different combinations of genetic and environmental risk factors. Recently, several genome‐wide association studies (GWASs) of schizophrenia have identified numerous risk factors, but the replication results remain controversial and ambiguous. To identify schizophrenia susceptibility loci in the Korean population, we performed a GWAS using the Illumina HumanOmni1‐Quad V1.0 Microarray. We genotyped 1,140,419 single nucleotide polymorphisms (SNPs) in 350 Korea schizophrenia patients and 700 control subjects, and approximately 620,001 autosomal SNPs were passed our quality control. In the case–control analysis, the rs9607195 A>G on intergenic area 250 kb away from the ISX gene and the rs12738007 A>G on the intron of the MECR gene were the most strongly associated SNPs with the risk of schizophrenia (P = 6.2 × 10−8, OR = 0.50 and P = 3.7 × 10−7, OR = 2.39, respectively). In subsequent fine‐mapping analysis, 6 SNPs of MECR were genotyped with 310 schizophrenia patients and 604 control subjects. The association of the MECR rs12738007, a top ranked‐SNP in GWAS, was replicated (P = 1.5 × 10−2, OR = 1.53 in fine mapping analysis, P = 1.5 × 10−6, OR = 1.90 in combined analysis). The identification of putative schizophrenia susceptibility loci could provide new insights into genetic factors related with schizophrenia and clues for the development of diagnosis strategies. © 2015 Wiley Periodicals, Inc.
doi_str_mv 10.1002/ajmg.b.32400
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subjects Adult
Asian Continental Ancestry Group - genetics
Case-Control Studies
Computer Simulation
Female
Genetic Predisposition to Disease
Genetics
Genome-Wide Association Study
Humans
Introns - genetics
Male
MECR
Middle Aged
Physical Chromosome Mapping
Polymorphism, Single Nucleotide - genetics
Republic of Korea
Risk Factors
schizophrenia
Schizophrenia - genetics
single nucleotide polymorphism
title Genome-wide association study with the risk of schizophrenia in a Korean population
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