title: A comprehensive meta-analysis of ZNF804A SNPs in the risk of schizophrenia among Asian populations.
abstract: Common variants in ZNF804A increased the risk of schizophrenia (and bipolar disorder), with low effect sizes in Europeans, which is in line with the polygenic nature of the illnesses, and implies that genetic analyses in small samples may not be sufficient to detect stable results. This notion is supported by the inconsistent replications of ZNF804A variations among individual small Asian samples, indicating the absence of definitive conclusions in this population. We collected psychiatric phenotypic and genetic data from Asian genome-wide association (GWA) and individual replication studies, which include up to 13,452 cases, 17,826 healthy controls, and 680 families, that is, the largest-scale study on ZNF804A in Asian populations to date. The European GWAS risk single nucleotide polymorphism (SNP) rs1344706 was nominally associated with schizophrenia in these Asian samples (one-tailed P = 4.26 × 10(-2) , odds ratio [OR] = 1.048), and the association was further strengthened when bipolar disorder data was also included (one-tailed P = 1.85 × 10(-2) , OR = 1.057). Besides, a non-synonymous SNP rs1366842 in the exon 4 of ZNF804A was also associated with schizophrenia (P = 9.96 × 10(-3) , OR = 1.095). We additionally analyzed other 163 SNPs covering ZNF804A region, but none of them showed any evidence of association. Though the two SNPs did not remain significant if we applied multiple corrections, our analysis should be interpreted as a primary replication study with in prior hypothesis, and rs1344706 and rs1366842 might confer a small but detectable risk of schizophrenia (and bipolar disorder) in Asians. Moreover, the current data suggest the necessity of replication analyses in a large enough scale samples.
authors: First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China.
authors: Liang
authors: L
authors: Huang
authors: Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan.
authors: Kazutaka
authors: K
authors: Ohi
authors: Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China.
authors: Hong
authors: H
authors: Chang
authors: Institute of Mental Health, Peking University, Beijing, China.|Ministry of Health Key Laboratory of Mental Health, Peking University, Beijing, China.
authors: Hao
authors: H
authors: Yu
authors: Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China.
authors: Lichuan
authors: L
authors: Wu
authors: Institute of Mental Health, Peking University, Beijing, China.|Ministry of Health Key Laboratory of Mental Health, Peking University, Beijing, China.
authors: Weihua
authors: W
authors: Yue
authors: Institute of Mental Health, Peking University, Beijing, China.|Ministry of Health Key Laboratory of Mental Health, Peking University, Beijing, China.
authors: Dai
authors: D
authors: Zhang
authors: Shandong Provincial Research Center for Bioinformatic Engineering and Technique, School of Life Science, Shandong University of Technology, Zibo, China.
authors: Lei
authors: L
authors: Gao
authors: Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China.
authors: Ming
authors: M
authors: Li
mesh_terms: D044466:Asian People / Q000235:genetics*; D020022:Genetic Predisposition to Disease; D055106:Genome-Wide Association Study; D006801:Humans; D051741:Kruppel-Like Transcription Factors / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D012307:Risk Factors; D012559:Schizophrenia / Q000235:genetics*
chemical_list: D051741:Kruppel-Like Transcription Factors; C540527:ZNF804A protein, human
keywords: Asians; ZNF804A; bipolar disorder; schizophrenia