نتایج جستجو برای: hbv dna
تعداد نتایج: 517414 فیلتر نتایج به سال:
چکید ه سابقه و هدف بتادومیکروگلوبولین ( b 2MG) ، زنجیره سبک آنتی‌ژن MHC-I می‌باشد که غلظت سرمی آن ( S β 2MG ) در افراد سالم کمتر از mg/L 3 ذکر شده است. در عفونت‌های هپاتیتی، عرضه آنتی‌ژن‌های ویروسی سطح هپاتوسیت‌ها روی آنتی‌ژن‌های MHC-I در حذف ویروس نقش مهمی ایفا می‌کند. مواد و روش‌ها در این مطالعه توصیفی درسرم 4 9 بیمار مبتلا به هپاتیت B در مقایسه با 3 5 فرد کنترل با سرولوژی منفی (فا...
ABSTRACT One of the best reliable markers of hepatitis B virus infection is antibodies to the core antigen (Anti-HBc). A first-time blood donor with HBsAg positivity was identified as an HBV carrier that was anti-HBc negative. The patient was followed for 24 months in order to investigate the evolution of his HBV serological profiles and HBVDNA (PCR). In the follow-up for 24 months, HBsAg, HBe...
background to evaluate the strength of association and to determine the best prediction of response in terms of sensitivity and specificity among quantitative baseline hbv-dna levels in blood serum in patients with chronic hepatitis b (chb) infection who treated with interferon-alpha-2b. patients and methods totally, 78 chb patients with serum hbv-dna>105 copies/ml were treated with interferona...
Introduction: The hepatitis B is a viral infection that causes a big problem globally. About 2 billion people worldwide are infected and there are now about 400 million HBV-DNA carriers around the world. HBV infection is the ninth cause of death worldwide and infects about 350 million new cases each year in the world. HBV-DNA can be spotted in different body secretions and fluids, including se...
Background Hepatitis B virus DNA (HBV-DNA) assessment is recommended for diagnosing and monitoring chronic hepatitis (CHB) patients. Quantitative surface antigen (qHBsAg) estimation adjunct to HBV-DNA vital assessing HBV chronicity therapeutic prognosis. This study aimed estimate the qHBsAg compare its diagnostic performance with that of levels in CHB patients from Bangladesh. Methodology A tot...
Background and purpose: Hepatitis B virus (HBV) is a major global health problem. The prevalence of HBV infection varies throughout regions of the world. More than 350 million people live with chronic HBV infection and many different clinical symptoms are associated with it. Long-term complications of HBV infection lead to cirrhosis of the liver and hepatocellular carcinoma. Consequently, 0.5-1...
Background: Hepatitis B Virus (HBV) causes acute and chronic liver disease worldwide. HBV has eight genotypes (A to H) which is the reflection of its genome with their characteristic geographical distribution. Each genotype could have different pathogenic and therapeutic characteristics. There have been few records on HBV genotyping in general population from our region. This study aimed to...
Anti-HBc positivity is a frequent cause of donation rejection at blood banks. Hepatitis B virus (HBV) infection may also occur in HBsAg-negative patients, a situation denoted occult infection. Similarly, very low levels of HBV-DNA have also been found in the sera of patients with chronic hepatitis C virus (HCV) infection, even in the absence of serum HBsAg. Initially we searched for HBV-DNA in ...
Background : Hbs-Ag positivity rates in dialysis patients correlate with endemicity in the general population. There is a subset of patients with occult HBV infection that defined as the presence of detectable HBV-DNA by PCR in patients who are negative for Hbs-Ag. We decided to detect the occult HBV cases in our hemodialysis patients. Methods : With support of charity society of renal pati...
چکید ه سابقه و هدف بروز هپاتیت B پس از انتقال خون با غربالگری خون‌های اهدایی برای HBsAg کاهش یافته ولی هنوز HBV مسـؤول بـروز تعـدادی مـوارد هپاتیت پس از انتقال خون در سراسر جهان است. برآورد و تخمین میزان anti-HBc و HBV DNA مثبت در واحدهای خون‌های اهدایی جهت ارزیابی لزوم غربالگری اهداکنندگان خون از نظر anti-HBc مهم است. در این مطالعه واحدهای خون اهدایی که HBsAg منفی بودند از نظر anti-HBc م...
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