Clinical Characteristics of Asymptomatic Hepatitis B Virus Carriers with YMDD Mutant not Treated with Lamivudine
نویسندگان
چکیده
منابع مشابه
Clinical characteristics of asymptomatic hepatitis B virus carriers with YMDD mutant not treated with lamivudine.
We previously developed a method of detecting drug-resistant mutation of hepatitis B virus (tyrosine (Y)-methionine (M)-aspartic acid (D)-aspartic acid (D) (YMDD) mutation) caused by the antiviral agent lamivudine. Using this method, we also reported that YMDD mutation is present in asymptomatic carriers that had not been administered antiviral agents. Thus, we investigated the clinical charact...
متن کاملFrequency of YMDD mutations in patients with chronic hepatitis B untreated with antiviral medicines
Abstract Background: Investigators were suspicious of tyrosine-methionine-aspartate-aspartate (YMDD) mutations occurred only in patients who were treated by lamivudine. However, YMDD mutations of hepatitis B virus gene (HBV DNA) in patients with chronic hepatitis B (CHB) untreated with antiviral medicines was reported in some studies. The aim of this study was to evaluate YMDD mutations in Ira...
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Background and Aims: lamivudine is amongst the antiviral for drug chronic hepatitis B treatment. During therapy with lamivudine, variants may emerge with YMDD mutation in the reverse transcriptase (RT) region of polymerase gene. This mutation might have a role in drug resistant for HBV. Materials and Methods: HBV DNA extraction from serum sample of 88 patients, were subjected to nested PCR for ...
متن کاملRate of YMDD motif mutants in lamivudine-untreated Iranian patients with chronic hepatitis B virus infection.
BACKGROUND Lamivudine is used for the treatment of chronic hepatitis B patients. Recent studies show that the YMDD motif mutants (resistant hepatitis B virus) occur as natural genome variability in lamivudine-untreated chronic hepatitis B patients. In this study we aimed to determine the rate of YMDD motif mutants in lamivudine-untreated chronic hepatitis B patients in Iran. PATIENTS AND METH...
متن کاملPrevalence and clinical correlates of YMDD variants during lamivudine therapy for patients with chronic hepatitis B.
YMDD variants of hepatitis B virus (HBV) emerge in some patients with chronic hepatitis B who receive lamivudine. YMDD variants were examined in 794 patients in 4 controlled studies of 1 year's duration. The long-term effects of YMDD variants were examined in a subset of patients treated up to 4 years. YMDD variants were detected by polymerase chain reaction (PCR) and restriction fragment-lengt...
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ژورنال
عنوان ژورنال: The Kurume Medical Journal
سال: 2003
ISSN: 0023-5679,1881-2090
DOI: 10.2739/kurumemedj.50.87