نتایج جستجو برای: occult hepatitis b

تعداد نتایج: 964861  

Journal: Medical Journal of Islamic Republic of Iran 2005
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...

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Journal: :hepatitis monthly 0
eleanor a. powell division of digestive disease, department of internal medicine, university of cincinnati college of medicine, cincinnati, oh, usa sanam razeghi division of digestive disease, department of internal medicine, university of cincinnati college of medicine, cincinnati, oh, usa stephen zucker division of digestive disease, department of internal medicine, university of cincinnati college of medicine, cincinnati, oh, usa jason t. blackard division of digestive disease, department of internal medicine, university of cincinnati college of medicine, cincinnati, oh, usa; division of digestive disease, department of internal medicine, university of cincinnati college of medicine, cincinnati, ml 0595, 231 albert sabin way cincinnati, oh 45267, usa. tel: +1-513-558-4389, fax: +1-513-558-1744

conclusions hbv vaccination in infancy is effective at preventing chronic hbv infection but is less effective at preventing occult hbv infection. similar studies examining the efficacy of adult hbv vaccination in preventing occult hbv have not been performed. this case highlights the importance of carefully determining the hbv status of high-risk individuals, as vaccination history and the pres...

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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 ...

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ژورنال: ارمغان دانش 2021
Mankhian, Alireza, Shariat, Afsoon,

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 ...

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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...

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Journal: Iranian Journal of Blood and Cancer 2013
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 ...

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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...

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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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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 ...

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Journal: :acta medica iranica 0
jamshid ayatollahi department of infectious diseases, infectious diseases research center, shahid sadoughi university of medical sciences, yazd, iran. somayeh jahanabadi department of infectious diseases, school of medicine, shahid sadoughi university of medical sciences, yazd, iran. mohammad sharifyazdi department of infectious diseases, infectious diseases research center, shahid sadoughi university of medical sciences, yazd, iran. roya hemayati department of nephrology, school of medicine, shahid sadoughi university of medical sciences, yazd, iran. mahmood vakili department of community medicine, school of medicine, shahid sadoughi university of medical sciences, yazd, iran. seyed hossein shahcheraghi department of infectious diseases, infectious diseases research center, shahid sadoughi university of medical sciences, yazd, iran. and department of modern sciences and technologies, school of medicine, mashhad university of medical sciences, mashhad, iran.

occult hbv infection of hemodialysis (hd) patients is informative in terms of virus transmission. it may be of clinical importance in hd patients. the aim of this study was to investigate the prevalence of anti-hbc in the hd patients. number of 126 patients undergoing hemodialysis were included in this study from main hemodialysis units in yazd. hepatitis b surface antigens (hbsag), hepatitis b...

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