نتایج جستجو برای: hbsag immune epitopes

تعداد نتایج: 289300  

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 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 ...

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: :Journal of viral hepatitis 2013
A Khedive M Norouzi F Ramezani H Karimzadeh S M Alavian R Malekzadeh G Montazeri A Nejatizadeh M Ziaee F Abedi B Ataei M Yaran B Sayad M H Somi G Sarizadeh I Sanei-Moghaddam F Mansour-Ghanaei H Rafatpanah M A Pourhosseingholi H Keyvani E Kalantari M Saberifiroozi M A Judaki S Ghamari M Daram M Mahabadi Z Fazeli Z Goodarzi V Poortahmasebi S M Jazayeri

Mutations within the coding region of hepatitis B surface antigen (HBsAg) have been found naturally in chronic carriers. To characterize the mutations of HBsAg from Iranian chronic carriers who were vaccine and/or medication naive. The surface genes from 360 patients were amplified and directly sequenced. The distribution of amino acid substitutions was classified according to different immune ...

Anis Jafari, Nader Shahrokhi, Saeid Bouzari,

We developed an immunogen to stimulate multivalent immunity against hepatitis B surface antigen (HBsAg) and hepatitis B core antigens (HBcAg). Immune responses specific for both HBsAg and HBcAg play an important role in controlling the infection. HBsAg-specific antibodies mediate elimination of virions at an early stage of infection and prevent the spread of virus. The immunogen was constructed...

Abolfazl Khedive Alireza Namazi Behrooz Ataei Majid Yaran Mehdi Norouzi, Mohammad Ali Judaki Ramin Rahimnia Reza Malekzadeh, Seyed Ali Ghorashi Seyed Moayyed Alavian Seyed Mohammad Jazayeri, Shiva Ghamari

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 a...

Journal: :Journal of virology 2001
H J Netter T B Macnaughton W P Woo R Tindle E J Gowans

The small envelope protein of hepatitis B virus (HBsAg-S) can self-assemble into highly organized virus like particles (VLPs) and induce an effective immune response. In this study, a restriction enzyme site was engineered into the cDNA of HBsAg-S at a position corresponding to the exposed site within the hydrophilic a determinant region (amino acid [aa] 127-128) to create a novel HBsAg vaccine...

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...

Journal: :iranian biomedical journal 0
نادر شاهرخی nader shahrokhi سعید بوذری saeid bouzari انیس جعفری anis jafari

we developed an immunogen to stimulate multivalent immunity against hepatitis b surface antigen (hbsag) and hepatitis b core antigens (hbcag). immune responses specific for both hbsag and hbcag play an important role in controlling the infection. hbsag-specific antibodies mediate elimination of virions at an early stage of infection and prevent the spread of virus. the immunogen was constructed...

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