Abstract
Objectives: We performed a systematic review and meta-analysis to estimate the polymorphism effects of IL18RAP and CCR3 on celiac disease susceptibility. Methods: PubMed and Web of Science databases were searched (to June 2015) on IL18RAP rs917997 and CCR3 rs6441961 polymorphisms. Results: The meta-analysis included 16 and 7 studies for rs917997 and rs6441961, respectively. The minor risk A allele at both rs917997 and rs6441961 carried risks (odds ratios) of 1.24 (95% CI 1.18–1.31) and 1.21 (95% CI 1.12–1.31), respectively. These alleles contributed to increase risks in all celiac disease patients by 5.04 and 6.35%. The estimated lambdas were 0.73 and 0.51, suggesting that an additive model would be the best choice for both gene effects. Conclusions: This meta-analysis provides robust estimates that IL18RAP rs917997 and CCR3 rs6441961 are potential risk factors for celiac disease in European populations. Studies are needed to confirm these findings in different ethnicities.
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