meta-analysis of the relation of polymorphism at sites −1082 and −592 of the IL-10 gene promoter with susceptibility and clearance to persistent hepatitis B virus infection in the Chinese population

• Published in: Infection 2011-02, Vol.39 (1), p.21-27
• Main Authors: Zhang, T.-C, Pan, F.-M, Zhang, L.-Z, Gao, Y.-F, Zhang, Z.-H, Gao, J, Ge, R, Mei, Y, Shen, B.-B, Duan, Z.-H, Li, X
• Format: Article
• Language: English
• Subjects: China; Clinical and Epidemiological Study; Family Medicine; General Practice; Genetic Predisposition to Disease; Health risks; Hepatitis; Hepatitis B - genetics; Hepatitis B - immunology; Hepatitis B virus; Humans; IL-10 gene; Immunity, Innate; Infectious Diseases; Interleukin-10 - genetics; Internal Medicine; Medicine; Medicine & Public Health; meta-analysis; polymorphism; Polymorphism, Genetic; Promoter Regions, Genetic
• ISSN: 0300-8126; 1439-0973
• DOI: 10.1007/s15010-010-0075-3

Background Up to now, many publications about the Chinese population have evaluated the correlation between interleukin-10 (IL-10) −1082 and −592 polymorphisms and persistent hepatitis B virus (HBV) infection. However, the results remain inconclusive. In order to resolve this conflict, a meta-analysis was performed. Methods Seven studies were included and dichotomous data are presented as the odds ratio (OR) with a 95% confidence interval (CI). Results The results of our study suggest that carriers of the IL-10 −592A allele were more likely to clear HBV spontaneously in the Chinese pooled population (A vs. C: OR = 0.799, 95% CI = 0.678-0.941, P = 0.007; AC vs. AA: OR = 1.343, 95% CI = 1.017-1.684, P = 0.011; AA vs. AC + CC: OR = 0.736, 95% CI = 0.594-0.912; AA + AC vs. CC: OR = 0.588, 95% CI = 0.408-0.848, P = 0.004) and the IL-10 −1082A allele was associated with significantly reduced persistent HBV infection risk in Chinese (A vs. G: OR = 0.701, 95% CI = 0.494-0.996, P = 0.047; AA vs. GG + GA: OR = 0.684, 95% CI = 0.476-0.982, P = 0.040). Conclusions Persistent HBV infection susceptibility is associated with the gene polymorphism IL-10 −1082GA in the Chinese population and the clearance of HBV is associated with the gene polymorphism IL-10 −592CA in the Chinese population.