Development of peptide nucleic acid mediated polymerase chain reaction clamping (PMPC)--direct sequencing method for detecting lamivudine-resistant hepatitis B virus (HBV) variants with high sensitivity and specificity.

Abstract excerpt

Reduced sensitivity of HBV to lamivudine, which causes a viral breakthrough during treatment, is attributed to mutations within the tyrosine-methionine-aspartate(YMDD) locus in the reverse transcriptase(rt) domain of HBV polymerase, mainly a methionine(rtM204) substitution. The sensitive detection of such mutations before or early in treatment could assist in optimizing antiviral treatment. For this purpose, we...

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