نتایج جستجو برای: HBV immune epitopes

تعداد نتایج: 297142  

Journal: :iranian journal of virology 0
hossein keyvani department of virology, iran university of medical sciences, tehran, iran fatemeh ramezani hepatitis b molecular laboratory-department of virology-school of public health-tehran university of medical sciences, tehran, iran seyem mohamad jazayeri hepatitis b molecular laboratory-department of virology-school of public health-tehran university of medical sciences, tehran, iran seyed hamid reza monavari department of virology, iran university of medical sciences, tehran, iran farah bokharaei-salim department of virology, iran university of medical sciences, tehran, iran seyed moayed alavian middle east liver diseases center (meld centers) tehran, iran

abstract background: naturally occurred hepatitis b virus (hbv) with surface mutations in a variety of chronic hepatitis b (chb) patients who have received no vaccine or hbig bearing substitutions in surface protein, have been reported. objectives: current knowledge concerning the prevalence of these naturally occurring surface antigen mutations among iranian carriers is limited. patients and m...

Journal: :iranian journal of public health 0
m norouzi sa ghorashi f abedi a nejatizadeh b ataei r malekzadeh

background: hepatitis b virus (hbv) gene and protein variations are frequently been seen in chronic patients. the aims of study were to determine the genotypes as well as the patterns of variations distribution in chronically-infected patients from the central part of iran. methods: the surface gene was amplified, sequenced and subsequently aligned using international and national iranian datab...

Journal: :iranian journal of basic medical sciences 0
mehdi norouzi iranian national institute for genetic engineering and biotechnology, tehran, iran seyed ali ghorashi iranian national institute for genetic engineering and biotechnology, tehran, iran behrooz ataei infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran majid yaran infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran reza malekzadeh digestive disease research center, shariati hospital, tehran, iran seyed moayyed alavian baqiyatallah university of medical sciences, baqiyatallah research centre for gastroenterology and liver disease, tehran, iran

objective(s) the aim of this study was to characterize the hepatitis b virus surface protein genotypes and sequence variations among hepatitis b virus surface antigen (hbsag) positive chronic patients in hormozgan province, south of iran. materials and methods a total of 8 patients enrolled in this study. the surface gene was amplified and directly sequenced. genotypes and nucleotide/amino acid...

Abstract Background: Naturally occurred hepatitis B virus (HBV) with surface mutations in a variety of chronic hepatitis B (CHB) patients who have received no vaccine or HBIG bearing substitutions in surface protein, have been reported. Objectives: Current knowledge concerning the prevalence of these naturally occurring surface antigen mutations among Iranian carriers is limited. Patients and M...

Objective (s):The aim of this study was to determine the correlation between vaccine therapy and appearance of mutations in hepatitis B surface antigen (HBsAg)-positive chronic hepatitis B virus (HBV) patients. Materials and Methods: 16 patients received the HBV vaccine and another 16 individuals from the control group did not. The surface gene was amplified and directly sequenced from samples...

Journal: :iranian journal of allergy, asthma and immunology 0
fatemeh ramezani hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, iran mehdi norouzi hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, iran gholam reza sarizade khoozestan province blood trasfusion, ahvaz, iran vahdat poortahmasebi hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, iran ebrahim kalantar gholhak medical laboratory, tehran, iran lars magnius virological department, swedish institute for infectious disease control, solna, sweden

mutations in the human hepatitis b virus (hbv) genome contribute to its escape from host immune surveillance and result in persistent infections. the aim of this study was to characterize the molecular variations of the surface gene and protein in chronically-infected patients from the southern part of iran. the  surface  genes  from  12  hbv  chronic  carriers  were  amplified, sequenced  and ...

Journal: :iranian journal of basic medical sciences 0
maryam daram hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, iran ghodratollah montazeri digestive disease research center, shariati hospital, tehran, iran hadi karimzadeh hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, iran reza malekzadeh digestive disease research center, shariati hospital, tehran, iran mahmood mahmoodi department of epidemiology, school of public health, tehran university of medical sciences, tehran, iran zahra goodarzi hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, iran

objective (s):the aim of this study was to determine the correlation between vaccine therapy and appearance of mutations in hepatitis b surface antigen (hbsag)-positive chronic hepatitis b virus (hbv) patients. materials and methods: 16 patients received the hbv vaccine and another 16 individuals from the control group did not. the surface gene was amplified and directly sequenced from samples ...

Journal: :jundishapur journal of microbiology 0
chiman karami department of virology, ahvaz jundishapur university of medical sciences, ahvaz, iran ahmad h adli department of virology, golestan university of medical sciences, gorgan, iran sareh zhand department of biotechology, golestan university of medical sciences, gorgan, iran alijan tabarraei department of microbiology, golestan university of medical sciences, gorgan, iran reza talei department of microbiology, lorestan university of medical sciences, khorramabad, iran mohsen saeidi stem cell research center, golestan university of medical sciences, gorgan, iran

background co-infection with human immunodeficiency virus (hiv) and hepatitis b virus (hbv) is common due to shared routes of transmission, as reported approximately 10% of 33 million hiv-infected patients worldwide are chronically infected with hbv. mutations of hbsag especially within the “a” determinant could alter the antigenicity of the protein, causing failure of hbsag neutralization and ...

Journal: :Archives of Iranian medicine 2013
Abolfazl Khedive Ismail Sanei-Moghaddam Seyed Moayed Alavian Esmail Saberfar Mehdi Norouzi MohamadAli Judaki Shiva Ghamari Seyed Mohammad Jazayeri

BACKGROUND Hepatitis B virus (HBV) gene and protein variations have frequently been observed in chronic patients. The aims of this study were to determine the genotypes as well as the patterns of HBsAg variations in chronically-infected patients from the south-eastern part of Iran. METHODS Twenty- one chronic inactive HBV carriers from Sistan-Balouchestan Province (an area with a low prevalen...

2017
Juzeng Zheng Xianfan Lin Xiuyan Wang Liyu Zheng Songsong Lan Sisi Jin Zhanfan Ou Jinming Wu

Hepatitis B virus (HBV) infection has persisted as a major public health problem due to the lack of an effective treatment for those chronically infected. Therapeutic vaccination holds promise, and targeting HBV polymerase is pivotal for viral eradication. In this research, a computational approach was employed to predict suitable HBV polymerase targeting multi-peptides for vaccine candidate se...

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