نتایج جستجو برای: hbv core antibody

تعداد نتایج: 390403  

Journal: :Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society 2008
Kirti Shetty Munira Hussain Lei Nei K Rajender Reddy Anna S F Lok

Occult hepatitis B virus (HBV) infection is defined as the detection of HBV deoxyribonucleic acid (DNA) in the serum or liver tissue of individuals who test negative for hepatitis B surface antigen (HBsAg). We undertook a prospective study to evaluate the significance and course of occult HBV in patients with hepatitis C virus (HCV) cirrhosis undergoing orthotopic liver transplantation (OLT). A...

Journal: :Iranian journal of kidney diseases 2011
Houshang Sanadgol Mina Khoshnoodi Mohammad Ali Mashhadi Mohammad Saad Forghani

INTRODUCTION Hepatitis B virus (HBV) infection is much more common in hemodialysis patients than the general population. Up to half of hemodialysis patients do not have adequate protective HBV antibodies after HBV vaccination. We studied the effects of adding levamisole, as an immunomodulator and adjuvant agent, on seroconversion response to HBV vaccination in hemodialysis patients. MATERIALS...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1390

مطالعات بیشتر بیان نموده اند که ---- باعث ایجاد موتاسیون g to a-در ژنوم hbvمی گردد که حاصل آن حذف آنتی ژن hbeو کاهش hbv-dnaدر پلاسما می باشد.درهر حال به نظر می رسد که مکانیسم عملکرد a3gجلوگیری از بسته بندی hbv-dna در داخل ذرات ویروسی باشد.(4).همچنین xu et al پیشنهاد نموده است که apobec3 دآمینازها دارای نقشی در سرطانزایی hccاز طریق ایجاد موتاسیون ها در hbx(ناحیه همپوشان باbcp ) می باشند(5). علی...

2016
Qiao He Wanyu Li Jihua Ren Yecai Huang Ying Huang Qin Hu Juan Chen Weixian Chen

Hepatitis B virus (HBV) infection is a major cause of liver diseases, especially liver cirrhosis and hepatocellular carcinoma. However, the interaction between host and HBV has not been fully elucidated. ZEB2 is a Smad-interacting, multi-zinc finger protein that acts as a transcription factor or repressor for several signaling pathways. This study found that the expression of ZEB2 was decreased...

Aabollah Jafarzadeh Abbasali Pourazar, Farzad Oreizi Keivan Shariatinezhad Mansoor Salehi, Mohammad Kazemi Arababadi,

Background: The risk of infection by transfusion-transmitted viruses has been reduced remarkably. However, a zero-risk blood supply is still desirable. The screening for antibody to HBc (anti-HBc) has been shown as an alternative test for the detection of HBV infection. Objective: The main aim of this study was to evaluate HBV infection markers and the potential value of anti-HBc testing of blo...

2016
Slim Fourati Jean-Michel Pawlotsky

Hepatitis B virus (HBV) infects approximately 240 million individuals worldwide. Recent advances in the virology, immunopathogenesis, and diagnosis of HBV infection are summarized in this review article. The identification of a hepatocyte-specific cellular receptor for HBV, the sodium taurocholate co-transporting polypeptide (NTCP), made it possible to develop reliable cell culture systems and ...

2016
Brian J. McMahon Harry Janssen Slim Fourati Jean-Michel Pawlotsky

Hepatitis B virus (HBV) infects approximately 240 million individuals worldwide. Recent advances in the virology, immunopathogenesis, and diagnosis of HBV infection are summarized in this review article. The identification of a hepatocyte-specific cellular receptor for HBV, the sodium taurocholate co-transporting polypeptide (NTCP), made it possible to develop reliable cell culture systems and ...

Journal: :hepatitis monthly 0
maryam asli infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran tahmineh kandelouei department of microbiology, faculty of biological sciences, shahid beheshti university, tehran, ir iran koroush rahimyan department of microbiology, faculty of medicine, shahid beheshti university of medical sciences, tehran, ir iran foad davoodbeglou department of immunology, faculty of medicine, shahid beheshti university of medical sciences, tehran, ir iran maryam vaezjalali department of microbiology, faculty of medicine, shahid beheshti university of medical sciences, tehran, ir iran; department of microbiology, faculty of medicine, shahid beheshti university of medical sciences, velenjak st, tehran, ir iran. tel: +98-2123872556, fax: +98-2122439964

conclusions in comparison with the rate of hbcab positivity reported in other iranian studies, the rate was higher in the present study. there were a few variations, genotypes, and subtypes among the infected injecting drug users. further investigations are needed to unravel the molecular characterization of obi. results sixty-four (28%) participants were hbcab positive, 59 cases were hbcab pos...

2016
Ming-Wei Lai Tzou-Yien Lin Kung-Hao Liang Wey-Ran Lin Chau-Ting Yeh

The presence of anti-hepatitis B virus (HBV) core antibody (anti-HBc) is considered a sensitive lifetime marker of HBV infection. Here, we examined this dogma by investigating the prevalence of hepatitis B viremia in anti-HBc negative complete vaccines in Taiwan.A total of 795 participants (1.7-20.0 years old) had completed HBV vaccination in infancy and were anti-HBc negative. Serum samples we...

Journal: :The American journal of tropical medicine and hygiene 2005
Sebastião Viana Raymundo Paraná Regina Célia Moreira Adriana Parise Compri Vanise Macedo

Severe cases of hepatitis caused by hepatitis B virus (HBV) or hepatitis D virus (HDV) are often seen in the Brazilian Amazon, but there is a paucity of epidemiologic studies on viral hepatitis in this area. Thus, a cross-sectional study to investigate the prevalence of markers for HBV and HDV was performed. Serum samples were collected after participants completed an epidemiologic questionnair...

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