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  • Yue Dai · Tao Ning · Kun Li · Su-xia Qi · Ming-wei Jiang · Qing-bo Chai · Yu-hui Gai · Xin Wang
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    ABSTRACT: To elucidate whether the antigen-processing gene (LMP2/LMP7) polymorphisms could influence the infection of hepatitis B virus. Genomic DNA of 176 patients infected with HBV and 208 healthy volunteers were extracted from the peripheral blood leukocytes. Polymorphisms of LMP genes in HBV patients were determined by polymerase chain reaction-restriction fragment length polymorphism (RFLP), the controls by DNA sequencing. We used the software PHASE1.0 to construct the haplotypes of every individual. At last the unconditional Logistic regression model was used to analyze the statistical association of genotypes or haplotypes in two groups adjusted by gender and age. The distributions of LMP2 genes between cases and controls did not differ. However, LMP7 gene frequency in patients was higher than that in controls [odds ratio 2.11(95% confidence interval 1.36-3.26); 2.66 (95% confidence interval 1.17-6.02), heterogenous or homologous respectively]. Similarly, we found the haplotype combinated by R-K had a significant difference in two groups [odds ratio 1.81 (95% confidence interval 1.19-2.76)]. These findings suggest that polymorphisms of LMP2/LMP7 gene is one of the important host factors which independently affect on the infection of hepatitis B virus.
    No preview · Article · Nov 2005 · Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences