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  • Title: Association of IL-10 and IL-10RA single nucleotide polymorphisms with the responsiveness to HBV vaccination in Chinese infants of HBsAg(+)/HBeAg(-) mothers: a nested case-control study.
    Author: Wen S, Wu Y, Pan Y, Cao M, Zhao D, Wang C, Wang C, Kong F, Li J, Niu J, Jiang J.
    Journal: BMJ Open; 2018 Nov 28; 8(11):e022334. PubMed ID: 30498038.
    Abstract:
    OBJECTIVES: To investigate the association of interleukin (IL)-10 and IL-10 receptor A (IL-10RA) single nucleotide polymorphisms with the responsiveness to hepatitis B virus (HBV) vaccination in newborns whose mothers were hepatitis B surface antigen (HBsAg)(+)/hepatitis B e antigen (HBeAg)(-). DESIGN: Nested case-control study. SETTING: Changchun, China. PARTICIPANTS: 713 infants from a Han Chinese population whose mothers were HBsAg(+)/HBeAg(-) and participated in the prevention of mother-to-child transmission of HBV at the First Hospital of Jilin University from July 2012 to July 2015 were included. Infants were excluded for HBsAg-positive; unstandardised vaccination process; inadequate blood samples; not Han Chinese and failed genotyping. RESULTS: Infants with artificial feeding pattern were correlated with low responsiveness to HBV vaccination (p=0.009). The GG genotype of IL-10 rs3021094 was correlated with a higher risk of low responsiveness to HBV vaccination (OR 2.80, 95% CI 1.35 to 5.83). No haplotype was found to be correlated with responsiveness to HBV vaccination. No gene-gene interaction was found between IL-10 and IL-10RA. CONCLUSIONS: Our study found that IL-10 gene variants were significantly associated with the immune response to the HBV vaccine. Identifying these high-risk infants who born to HBsAg(+)/HBeAg(-) mothers and low responses to hepatitis B vaccination will provide evidence for individualised prevention strategies.
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