نتایج جستجو برای: ymdd mutant
تعداد نتایج: 129717 فیلتر نتایج به سال:
BACKGROUND Three strategies using lamivudine have been proposed to prevent chemotherapy-induced HBV (hepatitis B virus) reactivation in the clinical setting. The purpose of this meta-analysis is to evaluate the efficacy of the early preemptive strategy, deferred preemptive strategy and therapeutic strategy in patients with HBsAg-positive breast cancer during chemotherapy. METHODS Clinical stu...
Post-transplant malignancy is the major cause of later death of recipients after liver transplantation. Tumor recurrence after liver transplantation for patients with hepatocellular carcinoma in the end stage of cirrhosis has been frequently encountered. However, de novo hepatocellular carcinoma originating from the liver allograft has only rarely been reported. Here we reported a case of de no...
PURPOSE To study the changes in serum ferritin levels in lamivudine (LAM)-treated patients with chronic hepatitis and liver cirrhosis type B and determine whether successful treatment with LAM results in a reduction of serum ferritin levels. METHODS Thirty patients with chronic hepatitis B virus (HBV) infection were followed prospectively during their treatment with LAM for 12 months. Serum H...
Lamivudine exhibits potent antiviral activity in chronic hepatitis B. YMDD mutations in west is around 32% (5 years) but reports from East are scarce. To evaluate frequency of lamivudine resistance and compare the results with the West, a total of 100 chronic hepatitis B patients were given Lamivudine 100 mg before breakfast. Out of 81 patients (19 no follow up), (85%) males and (15%) females. ...
Lamivudine therapy in the treatment of chronic hepatitis B with acute exacerbation during pregnancy.
We report a case of chronic hepatitis B carrier gravida who had acute exacerbation during pregnancy. She had been taking lamivudine 100 mg/qd for 17 months when hepatitis B virus (HBV) DNA in the YMDD region of the polymerase gene (YMDD motif) mutant was noted. After discontinuing lamivudine, she became pregnant. HBeAg became positive again and liver enzymes were elevated during the first trime...
Coinfections with human immunodeficiency virus (HIV) and hepatitis B virus (HBV) are common globally. HIV infection modifies the course of HBV infection by increasing rates of chronicity, prolonging HBV viremia, and increasing liver-related morbidity. To minimize the emergence of HIV and/or HBV resistance, as well as the emergence of liver enzyme flares, the treatment of both infections should ...
سابقه و هدف: هپاتیت B، بیماری بسیار خطرناکی است که به صورت اندمیک در بسیاری از مناطق جهان مشاهده می شود.ویروس هپاتیت (HBV) نسبت به یک سری داروهای ضد ویروسی از جمله لامیوودین حساس بوده (%98)، بطوری که به نواحی خاصی از آنزیم DNA پلی مراز ویروس متصل می گردد و مانع عمل ترانس کریپتاز معکوس و همانند سازی DNA ویروسی می شود. در اثر مصرف طولانی مدت دارو، جهشی در موتیف YMDD در دومین C ژن پلیمراز ویروس ...
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