نتایج جستجو برای: hepatitis b virus dna
تعداد نتایج: 1668671 فیلتر نتایج به سال:
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...
results patients’ age ranged from 15 to 65 years (mean = 35.54 ± 14.85). thirty four (1.0%) of the subjects were positive for hbsag, of whom, 2.9 % (1 of 34 cases) were also positive in pcr-based screening. elisa tests for hbeag, hbeab, and hbcab igm were positive in one (2.9 %), 27 (79.4%) and one (2.9 %) cases, respectively. conclusions according to our results, hbsag was positive in 0.53 of ...
1. Hass M, Hannoun C, Kalinina T, Sommer G, Manegold C, Gunther S. Functional analysis of hepatitis B virus reactivating in hepatitis B surface antigen-negative individuals. HEPATOLOGY 2005;42: 93-103. 2. Manegold C, Hannoun C, Wywiol A, Dietrich M, Polywka S, Chiwakata CB, et al. Reactivation of hepatitis B virus replication accompanied by acute hepatitis in patients receiving highly active an...
OBJECTIVE To investigate the distribution of hepatitis B virus (HBV) genotypes among patients with chronic hepatitis B in Kayseri, Turkey. METHODS The study took place in the Department of Microbiology, Erciyes University, Kayseri, and Iontek Laboratory, Istanbul, Turkey, from January 2005 to October 2007. One hundred and ten patients with chronic hepatitis B were included in this study. Hepa...
Background: In 1997, a novel DNA virus was isolated from the serum of a patient in Japan, and it was named TT virus (TTV). As the virus is replicated in liver and has the ability to induce apoptosis in hepatocytes (Hepatocellular carcinoma cells) it is hypothesized that TTV is an opportunistic virus and in certain conditions causes liver damage. In this study the frequency of infection with TTV...
One of the most serious kinds of hepatitis is hepatitis B. This condition is more common than AIDS, and is 100 time more contagious. In Iran the most common cause of acute and chronic hepatitis, liver cirrhosis, and also hepatocellar carcinoma in adults, is hepatitis B. more than two billion people are infected and more than 350 million of individuals are carriers of this virus in the entire wo...
Background and purpose: Recently, use of enzyme-linked immunosorbent assay (ELISA) and rapid Immunochromatographic test (ICT) in diagnosis and screening of patients with hepatitis B reduced the risk of hepatitis during blood transfusion. However, the incidence of hepatitis B is very high in high-risk patients such as hemodialysis, thalassemia and hemophilia which receive a lot of blood transfus...
Although an estimated 1 million persons in the United States are chronically infected with hepatitis B virus, the prevalence of hepatitis B has declined since the implementation of a national vaccination program. Hepatitis B virus is transmitted in blood and secretions. Acute infection may cause nonspecific symptoms, such as fatigue, poor appetite, nausea, vomiting, abdominal pain, low-grade fe...
Vitamin D deficiency is associated with several adverse health outcomes, and vitamin D appears to have systemic antimicrobial effects that may be crucial in a variety of both acute and chronic illnesses. In the present study, 25-hydroxyvitamin D (25-OHD) levels were compared among patients with chronic hepatitis B virus infection, naturally immunized individuals and control individuals. Thirty-...
context hepatitis b and hepatitis c (hbv and hcv) infections are both major causes of hepatocellular carcinoma (hcc). however, hcc caused by each of these two viruses has unique characteristics that should be studied independently to that of another one. while hbv- and hcv-related hccs share similar host and environmental risk factors such as male gender, age above 50 years old, family history ...
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