نتایج جستجو برای: occult hepatitis B infection

تعداد نتایج: 1345201  

MAHNAZ KAVARI, NADER COHAN, SEDIEGHEH AMINI, SHAHRAM SAMIEI, TAHEREH ZANDIEH, ZAHRA ATAEI,

 ABSTRACT Background: Hepatitis B virus (HBV) infection in patients who lack detectable hepatitis B surface antigen (HBsAg) is called occult hepatitis B infection. Such infections have been frequently identified in patients with chronic hepatitis Cliver disease, but their prevalence is not known. Methods: 207 patients with chronic hepatitis C who were HCV -RNA and antiHCV positive were stu...

Ali Akbar Pourfathollah, Ali Dehghani Fard, Amir Mohammad Alborzi, Mohammad Ali Jalalifar, Mohammad Kazemi Arababadi, Mohammad Shahjahani, Najmaldin Saki, Omid Kiani Ghalesardi, Taravat Bamdad,

Background: Blood transfusion plays a great role in public health and the blood safety still has remained a main concern. HBV has been considered as one of the most prevalent blood borne infections. It is estimated that chronic HBV affects 350-400 million people worldwide. Comprehensive knowledge about HBV has high importance in Iran due to high number of blood dependent patients. Material ...

ژورنال: Medical Laboratory Journal 2012
, Abbasi A (MD), , Kabotari M, , Tabarraei A (PhD), , Tajbakhsh R (MD), , Zhand S (MSc), ,

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 ...

Journal: :reports of biochemistry and molecular biology 0
arezoo honarmand microbiology department, islamic azad university of jahrom, jahrom, iran morteza pourahmad tel: +98 9177916203; fax: +98 7154230021000 kavous solhjoo microbiology department, jahrom university of medical sciences, jahrom, iran mahmoud kohan nursery department, alborz university of medical sciences mohamad hassan davami microbiology department, jahrom university of medical sciences, jahrom, iran seyed kamyar mostafavi zadeh infectious disease department, isfahan university of medical sciences, isfahan, iran

background: in patients who are hepatitis b virus (hbv) dna-positive, but hbv surface antigen (hbsag) -negative, the infection is referred to as occult hepatitis b infection (obi). occult hbv infection is harmful when other liver diseases are present, and can aggravate liver damage in in patients with chronic liver diseases. in human immunodeficiency virus (hiv) infection the suppression of vir...

Journal: :medical journal of islamic republic of iran 0
tahereh zandieh iranian blood transfusion organization. sheikh fazlollah expressway. shahidhemmat. tehran, iran. nader cohan the research center of the iranian blood transfusion organization. tehran. iran. shahram samiei the research center of the iranian blood transfusion organization. tehran. iran. sediegheh amini the research center of the iranian blood transfusion organization. tehran. iran. zahra ataei the research center of the iranian blood transfusion organization. tehran. iran. mahnaz kavari the research center of the iranian blood transfusion organization. tehran. iran.

abstract background: hepatitis b virus (hbv) infection in patients who lack detectable hepatitis b surface antigen (hbsag) is called occult hepatitis b infection. such infections have been frequently identified in patients with chronic hepatitis cliver disease, but their prevalence is not known. methods: 207 patients with chronic hepatitis c who were hcv -rna and antihcv positive were studied f...

ژورنال: ارمغان دانش 2021

Abstract   Background & aim: Occult hepatitis B virus infection in blood donors threats the safety of the blood supply.  It is characterized by detection of low viral DNA in the serum subjects who have negative test for Hepatitis B surface antigen (HBsAg). The aim of this study was to assess the prevalence of occult hepatitis B virus infection among HBsAg negative and HBcAb positive in blood ...

Journal: :jundishapur journal of microbiology 0
azam askari immunology of infectious diseases research center, rafsanjan university of medical sciences, rafsanjan, ir iran gholam hossein hassanshahi molecular medicine research center, rafsanjan university of medical sciences, rafsanjan, ir iran seyed razi ghalebi yazd cardiovascular research center, shahid sadoughi university of medical sciences, yazd, ir iran abdollah jafarzadeh molecular medicine research center, rafsanjan university of medical sciences, rafsanjan, ir iran maryam mohit department of pathology, kerman university of medical sciences, kerman, ir iran masomeh hajghani molecular medicine research center, rafsanjan university of medical sciences, rafsanjan, ir iran

background occult hepatitis b infected (obi) patients cannot eradicate hepatitis b virus (hbv)-dna from their liver and peripheral blood, completely. objectives the main aim of this study was to investigate the rate of hla-a2 expression on peripheral blood mononuclear cells (pbmcs) of patients with obi. materials and methods in this experimental study, intensity of hla-a2 was measured on the pb...

Journal: :middle east journal of digestive diseases 0
murat afyon gata haydarpasa training hospital, first step examination, family health center and the naval academy clinic tuzla / istanbul, turkey. cumhur artuk gata training and research hospital, department of infectious diseases, kecioren/ankara, turkey.

in the recent issue of middle east journal of digestive diseases, we read with great interest the article by bahari et al. 1 , “significance of response to hepatitits b vaccine in subjects with isolated antibody to hepatitis b core antigen”. we wanted to specify some important matters related to the article.

Journal: :iranian journal of blood and cancer 0
amir mohammad alborzi omid kiani ghalesardi taravat bamdad ali akbar pourfathollah mohammad ali jalalifar mohammad shahjahani

background: blood transfusion plays a great role in public health and the blood safety still has remained a main concern. hbv has been considered as one of the most prevalent blood borne infections. it is estimated that chronic hbv affects 350-400 million people worldwide. comprehensive knowledge about hbv has high importance in iran due to high number of blood dependent patients. material and ...

Journal: :jundishapur journal of microbiology 0
manoochehr makvandi infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; research institute for infectious diseases of digestive system, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; virology department, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-6113354389, fax: +98-6113361544 niloofar neisi virology department, ahvaz jundishapur university of medical sciences, ahvaz, ir iran davod khalafkhany virology department, ahvaz jundishapur university of medical sciences, ahvaz, ir iran kamyar makvandi school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran eskandar hajiani gastroenterology and hepatology department, ahvaz jundishapur university of medical sciences, ahvaz, ir iran ali akbar shayesteh gastroenterology and hepatology department, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

background the occult hepatitis b infection (obi) is defined as the presence of hepatitis b virus (hbv) dna in the sera or in the liver biopsy and the absence of hepatitis b surface antigen (hbsag) by serological test. objectives the current study aimed to evaluate the occult hbv infection by polymerase chain reaction (pcr) and determine hbv genotyping among the patients with abnormal alanine t...

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