نتایج جستجو برای: hepatitis b virus hbv
تعداد نتایج: 1260001 فیلتر نتایج به سال:
Background: Although regular frequent blood transfusion improves overall survival of multi-transfused patients like β-thalassemic ones, it carries a definite risk of infection with blood-borne viruses such as viral hepatitis. This study was done to determine seropositivity of hepatitis B virus (HBV), hepatitis C virus (HCV), and Human Immunedeficiency Virus (HIV) infections among β-th...
Abstract Background: Mannose-binding lectin (MBL) is a constituent of the human innate immune system which may play an important role in combating a variety of infectious diseases and thus may be important for determining hepatitis B virus (HBV) persistence. In this study, we determined MBL genotypes in chronic hepatitis B subjects, spontaneously recovered subjects and healthy controls. Me...
Background and Objective: Presence of hepatitis B core antibody (anti-HBc) in the absence of hepatitis B surface antigen (HBsAg) and hepatitis B surface antibody (anti-HBs) is defined, as isolated anti-HBc. little is known about the clinical significance of the isolated anti-HBc in hepatitis B virus (HBV) infections. The aim of this study was to assess the significance of anti-HBc as the onl...
ABSTRACT Three major hepatitis B virus (HBV) antigens include HBcAg, HBeAg and HBsAg. HBeAg is the extracellular form of HBcAg, and is seen almost exclusively in people who have circulating serum HBV DNA. Presence of HBsAg in serum indicates that the individual has contracted HBV infection. Chronic hepatitis HBeAg-negative/anti-HBe–p...
Background and Objectives: Hepatitis B virus (HBV) infection is a major public health problem worldwide. Islamic Republic of Iran is located in mesoendemic region (prevalence 2%-7%). The aim of this study was to assess prevalence of chronic HBV in Iran according to demographic characteristics. Methods: Medline, Embase, Science Citation Index Expanded, Ovid, Google Scholar, IranMedex, SID, Ma...
Hepatitis D, also referred to as hepatitis D virus, or delta virus (HDV) is considered be a subviral satellite because it can propagate only in the presence of B (HBV) (WHO, 2020). There are uncertainties about epidemic patterns HDV infection and its contribution burden liver disease. defective that completes life cycle with (HBV). The HBV super-infection has been one most severe forms chronic ...
methods and materials: hepatitis b virus dna was detected by conventional pcr in some of the serum samples obtained from hbsag-positive chronic hepatitis b (chb) patients who were referred to health centers of shahrekord for routine monitoring of the disease. subsequently, using real-time pcr, the dna samples were used for genotyping and analysis of resistance to lamivudine. results: the dna wa...
Background: Serial measurement of hepatitis B virus (HBV) DNA levels in the liver and its relation with liver damage and serum HBV DNA levels are guide to begin and/or end a treatment course. This study evaluated the relationship between liver hepatitis B DNA viral load with liver histology in patients with chronic hepatitis B (HBV). Methods: Thirty patients with chronic anti-Hbe positive ...
Abstract Background and objectives: Hepatitis C virus (HCV), Human immuno deficiency virus (HIV) and Hepatitis B Virus (HBV) are the three main agents of Communicable disorders transmitted by blood transfusion. The survey of these virus-caused infections in Blood donors can display epidemiology of infections in province and be useful for evaluating donors’ health. The aim of this study wa...
Abstract Background and objectives: Hepatitis B virus infection is a major health problem in worldwide. The prevalence of Occult and chronic HBV in hemodialysis patients is higher than standard in developing countries. People with occult HBV are negative for HBV surface antigen (HBsAg) but positive for HBV-DNA. We aimed to evaluate occult hepatitis B infection in patients under hemodialysis in ...
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