基因分型
基因型
病毒学
无症状携带者
乙型肝炎
乙型肝炎病毒
无症状的
医学
生物
病毒
遗传学
基因
内科学
作者
Ruifeng Yang,Cong Xu,Zhihui Xu,Da Xu,Weijin Huang,R Maertens,Lai Wei
标识
DOI:10.1016/j.cca.2010.08.011
摘要
Different HBV genotypes have effect on the progression and outcome of chronic hepatitis B (CHB) and on the response to antiviral therapy. Accurate and sensitive genotyping methods are needed in clinical practice.In this multicenter retrospective study, 504 HBV DNA positive serum or plasma samples of CHB patients or asymptomatic carriers were genotyped by INNO-LiPA HBV genotyping and direct sequencing. A part of the consistent and discrepant results were confirmed by clonal sequencing.Except two samples with indeterminate results by INNO-LiPA, 463 had the same genotype results by INNO-LiPA and direct sequencing with a concordance of 92.23% (463/502). However 24 had completely inconsistent results by the two methods, seven of which were confirmed by clonal sequencing as the same genotype as by direct sequencing. Fifteen samples were determined as B/C mixed genotypes by INNO-LiPA but singe B or C genotype by direct sequencing, five of which were confirmed by clonal sequencing as B/C mixed infection. Further studies showed INNO-LiPA could detect 6% of genotype B and genotype C among mixed genotype samples at HBV DNA ≥3×10(3) IU/ml.INNO-LiPA is accurate and sensitive in detecting B, C, D and B/C mixed genotype infection in Chinese CHB patients and asymptomatic carriers.
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