نتایج جستجو برای: occult hepatitis b virus
تعداد نتایج: 1265564 فیلتر نتایج به سال:
هدف: تعیین عفونت‌های پنهان Occult Hepatitis B Virus (HBV) در اهداکنندگان قرنیه بانک چشم جمهوری اسلامی ایران با استفاده از تکنیک Polymerase Chain Reaction و نیز ارزیابی تبعات فرهنگی و اقتصادی نتایج این روش در رد یا نگه‌داری قرنیه‌های این افراد جهت پیوند. روش پژوهش: سرم خون اهداکنندگان قرنیه که آزمایش‌های سرولوژی غربالگری در آن‌ها برای HTLV Ab و HIV Ab و HCV Ab و HBS Ab و HBS Ag و سفیلیس منفی و ب...
Occult hepatitis B virus infection (OBI) is characterised by the persistence of hepatitis B virus (HBV) genome in the liver, without any evidence of overt infection: without HBV surface antigen (HBsAg) and HBV DNA detectable in the serum, or fugacious spots of very low levels of viraemia. OBI, a possible phase in the natural history of chronic hepatitis B, is mainly due to the strong suppressio...
The characteristics of 30 carriers with occult hepatitis B virus (HBV) infection (OBI) were compared with those of 30 individuals diagnosed as being HBV carriers at the time of blood donation, 60 asymptomatic carriers, and 60 chronic hepatitis patients. The prevalence of genotype C was significantly higher in carriers with OBIs than in any other HBsAg-positive (HBsAg(+)) group (P < 0.001). Spec...
PURPOSE The purpose of this study was to explore the outcomes and risk factors for hepatitis B virus (HBV) reactivation after kidney transplantation in occult HBV carriers, who are hepatitis B surface antigen (HBsAg) seronegative and hepatitis B core antibody (HBcAb) seropositive before kidney transplantation. METHODS We retrospectively analyzed 322 occult HBV carriers who received kidney tra...
OBJECTIVES Health care workers, including dentists, are at the front line for acquiring blood-borne virus infections. This study aimed to investigate the prevalence of hepatitis B, hepatitis C and human immunodeficiency viruses among Iranian dentists. MATERIAL AND METHODS The survey included 1628 dental health care workers who attended the 51st annual Congress of the Iranian Dental Associatio...
Hepatitis B virus (HBV) is an enveloped virus with a small (3.2-kb) partially double-stranded DNA genome that causes acute and chronic infections. The impact of these infections on public health worldwide is enormous, with an estimated prevalence of 2 billion acute infections and 360 million chronic infections globally. This review focuses on chronic hepatitis B and the molecular assays used in...
background and aims: many studies have provided evidence for the role of hepatitis b and c viruses in the development of liver cancer. although the routine treatment is available for both conditions, no definite guideline is available to treat patients dually infected with hbv and hcv. this study was performed to determine the frequency of hbv/hcv-coinfection in mashhad, north-east of iran. mat...
BACKGROUND Detection of hepatitis B virus (HBV) genomes without detectable hepatitis B surface antigen (HBs-Ag) is termed occult HBV infection (OHBV) that may be transmitted by blood transfusion or organ transplantation and has acute reactivation when an immunosuppressive status like human immunodeficiency virus (HIV) infection occurs. We aimed to evaluate OHBV in HIV-infected patients with iso...
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