کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6108025 1211183 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Early changes of hepatitis B virus quasispecies during lamivudine treatment and the correlation with antiviral efficacy
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی بیماری‌های گوارشی
پیش نمایش صفحه اول مقاله
Early changes of hepatitis B virus quasispecies during lamivudine treatment and the correlation with antiviral efficacy
چکیده انگلیسی

Background/AimsTo investigate dynamic changes of hepatitis B virus (HBV) quasispecies within the reverse transcriptase (RT) region during the early stage of lamivudine treatment and the correlation with antiviral efficacy.MethodsTwenty-five chronic hepatitis B patients received lamivudine treatment for 48 weeks. Fourteen patients responded to lamivudine, while eleven patients were non-responders. HBV DNA was extracted from serum samples at baseline and week 4. The RT region of HBV was amplified, then cloned and sequenced. Quasispecies complexity and diversity within the RT region were analyzed at baseline and week 4, and viral nucleotide substitution rates during the first 4 weeks were calculated.ResultsThe quasispecies complexity and diversity were not different between responders and non-responders at baseline (p > 0.05). However, the quasispecies complexity and diversity of responders were significantly lower than those of non-responders at week 4 (p < 0.01). Furthermore, the viral nucleotide substitution rate of responders was significantly higher than that of non-responders (p < 0.05).ConclusionsThe dynamic changes of HBV quasispecies within the RT region showed distinct patterns between responders and non-responders during early stage of lamivudine treatment. The dynamic changes of quasispecies complexity and diversity during the first 4 weeks were correlated with lamivudine antiviral efficacy and antiviral resistance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hepatology - Volume 50, Issue 5, May 2009, Pages 895-905
نویسندگان
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