نتایج جستجو برای: hbv surface antigen

تعداد نتایج: 816103  

2016
Lin Li Qing-song Lei Shu-Jun Zhang Ling-na Kong Bo Qin

Ubiquitin-specific protease 18 (USP18, also known as UBP43) has both interferon stimulated gene 15 (ISG15) dependent and ISG15-independent functions. By silencing the expression of USP18 in HepG2.2.15 cells, we studied the effect of USP18 on the anti-HBV activity of IFN-F and demonstrated that knockdown of USP18 significantly Inhibited the HBV expression and increased the expression of ISGs. Le...

Journal: :Infection control and hospital epidemiology 1998
A C Kroes E F van Bommel J A Kluytmans W Weimar

A detailed description is presented of the hemodialysis treatment for 6 weeks of a patient strongly positive for hepatitis B virus ([HBV], hepatitis B surface antigen, hepatitis B e antigen, HBV DNA), which was performed without any special precautions. All 59 patients potentially exposed to the HBV-positive patient, of whom 29 appeared fully unprotected by antibody, were followed for at least ...

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: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2015
Shigeru Kusumoto Yasuhito Tanaka Ritsuro Suzuki Takashi Watanabe Masanobu Nakata Hirotaka Takasaki Noriyasu Fukushima Takuya Fukushima Yukiyoshi Moriuchi Kuniaki Itoh Kisato Nosaka Ilseung Choi Masashi Sawa Rumiko Okamoto Hideki Tsujimura Toshiki Uchida Sachiko Suzuki Masataka Okamoto Tsutomu Takahashi Isamu Sugiura Yasushi Onishi Mika Kohri Shinichiro Yoshida Rika Sakai Minoru Kojima Hiroyuki Takahashi Akihiro Tomita Dai Maruyama Yoshiko Atsuta Eiji Tanaka Takayo Suzuki Tomohiro Kinoshita Michinori Ogura Masashi Mizokami Ryuzo Ueda

BACKGROUND There is no standard management of reactivation of hepatitis B virus (HBV) infection in HBV-resolved patients without hepatitis B surface antigen (HBsAg), but with antibodies against hepatitis B core antigen and/or antibodies against HBsAg (anti-HBs). METHODS We conducted a prospective observational study to evaluate the occurrence of HBV reactivation by serial monthly monitoring o...

Journal: :The new microbiologica 2017
Silvia Odolini Paola Lanza Angiola Angiola Serena Zaltron Lucia Urbinati Andrea Vavassori Paola Nasta Elena Festa Franco Gargiulo Anna Rodella Arnaldo Caruso Salvatore Casari Francesco Castelli Mauro Viganò

Reactivation of the hepatitis B virus (HBV) has been reported in patients with occult infection (OBI), i.e. HBV surface antigen (HBsAg) negative, HBV core antibody (anti-HBc) positive ± antibodies against HBsAg (anti-HBs) and detectable HBV DNA in serum or liver, receiving immunosuppressive or cytotoxic therapies. Recently, concerns have been raised regarding the risk of HBV reactivation in OBI...

Journal: :Pediatrics 2015
Ravi Jhaveri

Hepatitis B virus (HBV) continues to be a worldwide public health concern. There are more than 240 million people with chronic infection across the globe and 780 000 deaths each year as a result of acute or chronic HBV. Infants born to mothers with chronic HBV infection are at very high risk of acquiring the virus and progressing to chronic infection. In the 1970s–1980s, HBV vaccine and high-ti...

Journal: :iranian biomedical journal 0
محمد عزیزی mohammad azizi alexis musacchio ornaldo pardo nelvis figueroa verena muzio

dna coding for the core antigen from hepatitis b virus (hbcag) was amplified, cloned and propagated in e. coli. the core protein was expressed in e. coli and the product was readily detected by western blot. this protein can be used as a diagnostic material in serum screening tests. to increase the level of expression of this antigen in bacteria, two plasmids were constructed in which the gene ...

Journal: :The American journal of tropical medicine and hygiene 2003
David B Hipgrave Thu Van Nguyen Minh Huong Vu Thuy Long Hoang Tuan Dat Do Nam Trung Tran Damien Jolley James E Maynard Beverley-Ann Biggs

To ascertain hepatitis B virus (HBV) infection rates for Vietnam, we surveyed HBV markers in two districts of Thanh Hoa province. We randomly selected 536 infants (9- < or = 18 months old), 228 children (4 to < or = 6 years old), 219 adolescents (14 to < or = 16 years old), and 596 adults (25 to < or = 40 years old). On questioning, none of those surveyed had received vaccine against HBV. Hepat...

Journal: :Hepatitis Monthly 2023

Background: Entecavir (ETV) has been widely used in the clinical treatment of Hepatitis B Virus (HBV). However, whether ETV is helpful recovery T cell immune function remains unclear. Objectives: We aimed to assess effects on serum HBV-DNA, interferon-γ (IFN-γ), and pregenomic RNA (pgRNA) patients with infection. Methods: The data 300 HBV admitted from January 2017 2019 were retrospectively ana...

Journal: :Antiviral therapy 2012
Liyun Zheng Qiang Wang Xiaorui Yang Xiaohe Guo Lu Chen Le Tao Lihong Dong Yujiang Li Haoyun An Xuejun Yu Qingduan Wang Junbiao Chang

BACKGROUND New drugs are needed to combat HBV infection. We investigated the anti-HBV activity of the deoxycytidine analogue FNC, which has anticancer activity and has been found to inhibit HCV replication. METHODS In this study, a human hepatoma HepG2.2.15 cell culture system and duck HBV (DHBV) infection model were used as the in vitro and in vivo models to evaluate the anti-HBV activity of...

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