title: Association of the IL-4R Q576R polymorphism and asthma in the Chinese Han population: a meta-analysis.
abstract: The IL-4R Q576R polymorphism has been reported to increase susceptibility to asthma, but the results are controversial. Thus, we performed a meta-analysis to evaluate the association of the IL-4R Q576R polymorphism and asthma risk in the Chinese Han population. A total of sixteen eligible case-control studies that evaluated the relationship between the IL-4R Q576R polymorphism and asthma in the Chinese Han population were obtained by comprehensive literature search incorporating electronic databases, and included 2077 asthma cases and 1589 controls. Our analysis detected a significant association between the IL-4R Q576R polymorphism and the risk of asthma in the Chinese Han population (Allelic model: OR = 1.481, 95%CI = 1.134-1.935, P = 0.004; Dominant model: OR = 1.542, 95%CI = 1.194-1.990, P = 0.001; Recessive model: OR = 1.695, 95%CI = 1.170-2.456, P = 0.005, Additive model: OR = 1.897, 95%CI = 1.299-2.771, P = 0.005). The year of publication and size of total sample might be sources of between-study heterogeneity. Upon subgroup analysis by size of total sample of each study, the significant association only remained in a subgroup with a small sample size. In summary, our meta-analysis suggested that the IL-4R Q576R polymorphism is associated with asthma in the Chinese Han population.
authors: Department of Pediatrics, The No. 2 Hospital of Changzhou, Jiangsu, China.
authors: Z Y
authors: ZY
authors: Huang
authors: Department of Pediatrics, The No. 2 Hospital of Changzhou, Jiangsu, China chenbaojin982@126.com.
authors: B J
authors: BJ
authors: Cheng
authors: Department of Cardiology, Wujin Hospital Affiliated to Jiangsu University, Changzhou, Jiangsu, China.
authors: G J
authors: GJ
authors: Cai
authors: Department of Pathology and Molecular Medicine, McMaster University, Ontario, Canada.
authors: B F
authors: BF
authors: Zhang
mesh_terms: D019943:Amino Acid Substitution; D044466:Asian People / Q000235:genetics; D001249:Asthma / Q000208:ethnology / Q000235:genetics*; D016022:Case-Control Studies; D002681:China; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000208:ethnology / Q000235:genetics*; D005838:Genotype; D006801:Humans; D008957:Models, Genetic; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide; D019948:Receptors, Interleukin-4 / Q000235:genetics*; D012307:Risk Factors
chemical_list: D019948:Receptors, Interleukin-4