Association between 12p13 SNP rs11833579 and ischemic stroke in Asian population: An updated meta-analysis

• 11 studies including 9358 ischemic stroke cases and 8936 controls were pooled.
• SNP rs11833579 is not linked to ischemic stroke in the Asian population.
• SNP rs11833579 is not associated with LAA or SAO stroke under four genetic models.

BackgroundA GWAS found that the single-nucleotide polymorphism rs11833579 near the NINJ2 gene on chromosome 12p13 was associated with an increased risk of ischemic stroke in Caucasians in 2009. Several studies have been carried out to explore the association between this SNP and ischemic stroke in Asians, but published results were contradictory. In the present study, we performed a meta-analysis to further evaluate this association in the Asian population.MethodsAll relevant articles were retrieved from the databases of PubMed, EMBASE, Chinese Biomedical Literature Database, CNKI, CQVIP, and WANFANG Database from the establishment date to February 2014. Statistical analyses were performed by using Stata 11. The pooled odds ratios (ORs) with 95% confidence intervals (95% CIs) were used to assess the strength of the association. Possible publication bias was checked by funnel plots, Begg's test and Egger's test.ResultsEleven studies were eligible for meta-analysis including 9358 cases and 8936 controls. Overall, there were no significant associations between rs11833579 and ischemic stroke under the allelic (OR = 0.963, 95% CI: 0.850–1.092, p = 0.559), dominant (OR = 0.946, 95% CI: 0.778–1.150, p = 0.580), recessive (OR = 0.993, 95% CI: 0.914–1.078, p = 0.868), and homozygote (OR = 0.968, 95% CI: 0.796–1.177, p = 0.744) genetic models in the Asian population. Further, we found no evidence of association of rs11833579 with large artery atherosclerosis (LAA) or small-artery occlusion (SAO) stroke in all genetic models. The results of the subgroup analysis for Chinese population and Japanese population were consistent with that of the overall study.ConclusionsOur meta-analysis shows that SNP rs11833579 is not related to ischemic stroke in the Asian population.