Further evidence for genetic association of CACNA1C and schizophrenia: new risk loci in a Han Chinese population and a meta-analysis.

Abstract:

:CACNA1C (12p13.3) has been implicated as a susceptibility gene for schizophrenia by several replicated genome wide association studies. While these results have been consistent among studies in European populations, the findings in East Asian populations have varied. To test whether CACNA1C is a risk gene for schizophrenia, we conducted a case-control study in 5897 schizophrenic patients and 6323 healthy control subjects selected from Han Chinese population. Our study replicated the positive associations of rs1006737 (P=0.0108, OR=1.16, 95% CI: 1.03-1.29) and rs1024582 (P=0.0062, OR=1.18, 95% CI: 1.05-1.33), and identified a novel risk locus, rs2007044 (P=0.0053, OR=1.08, 95% CI: 1.02-1.14). A meta-analysis of rs1006737 combining our study and previous studies was conducted in a total of 8222 schizophrenia cases and 24,661 healthy controls. In the meta-analysis, the association between rs1006737 and schizophrenia remained significant (OR=1.14, 95% CI: 1.07-1.22, P=0.0001). Stratified analysis showed no heterogeneity between East Asian and European ancestries (χ(2)[1]=0.07, P=0.795), and the difference in pooled ORs between ancestries was not significant (Z=0.25, P=0.801). Our results provide further support for associations of rs1006737 and rs1024582 with schizophrenia, identify a new risk locus rs2007044 in a Han Chinese population, and further establish CACNA1C as an important susceptibility gene for the disease across world populations.

journal_name

Schizophr Res

journal_title

Schizophrenia research

authors

Zheng F,Zhang Y,Xie W,Li W,Jin C,Mi W,Wang F,Ma W,Ma C,Yang Y,Du B,Li K,Liu C,Wang L,Lu T,Zhang H,Wang Y,Lu L,Lv L,Zhang D,Yue W

doi

10.1016/j.schres.2013.12.003

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

105-10

issue

1

eissn

0920-9964

issn

1573-2509

pii

S0920-9964(13)00656-7

journal_volume

152

pub_type

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