Rapid re-emergence of YMDD mutation of hepatitis B virus with hepatic decompensation after lamivudine retreatment
نویسندگان
چکیده
منابع مشابه
hepatitis b virus ymdd-motif mutations with emergence of lamivudine-resistant mutants: a threat to recovery
hepatitis b virus (hbv) is a crucial public health problem with approximately 350 million affected people and a death rate of 0.5 to 1.2 million per year worldwide. it proceeds to end-stage liver diseases including cirrhosis with hepatic decompensation and hepatocellular carcinoma (hcc). pakistan lies in the endemic region with 3% hbv carrier rate in the country. the differences in disease outc...
متن کاملEmergence of YMDD mutant hepatitis B virus after allogeneic stem cell transplantation from a HBsAG-positive donor during lamivudine prophylaxis.
A high incidence of HBV-related hepatitis is associated with the use of HBsAg-positive marrow for transplantation, and the high viral load in the donor appears to predispose recipients to the development of HBV-related hepatitis postransplant. Preemptive use of lamivudine has proved to reduce hepatitis B exacerbation in HBsAgpositive recipients of allogeneic HCT. Since 2000, the policy in our m...
متن کاملEmergence of a novel lamivudine-resistant hepatitis B virus variant with a substitution outside the YMDD motif.
Lamivudine is a major drug approved for treatment of chronic hepatitis B virus (HBV) infection. Emergence of drug-resistant mutants with amino acid substitutions in the YMDD motif is a well-documented problem during long-term lamivudine therapy. Here we report a novel lamivudine-resistant strain of HBV with an intact YMDD motif, which included an amino acid substitution, rtA181T, in the reverse...
متن کاملClinical 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 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...
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ژورنال
عنوان ژورنال: World Journal of Gastroenterology
سال: 2008
ISSN: 1007-9327
DOI: 10.3748/wjg.14.4416