نتایج جستجو برای: hepatitis b virus hbv

تعداد نتایج: 1260001  

Journal: :Journal of clinical microbiology 1998
C M Chu C T Yeh Y F Liaw

Assays of hepatitis B virus (HBV) replication and antigen expression in HBV surface antigen (HBsAg) carriers with concurrent hepatitis C or D virus (HCV or HDV) infection revealed that HCV and HDV can suppress HBV replication but that HCV also substantially suppresses HBV surface protein expression. HBsAg carriers with concurrent HCV infection thus have low-level viremia and intracellular HBsAg.

2016
Anirban Kundu Sonia Mehta B. K. Agrawal

Liver disease has a worldwide distribution.(1,2) Hepatitis C virus (HCV) infection is a leading cause of chronic hepatitis and primary hepatocellular carcinoma in most parts of the world. In the developing countries of Asia and Africa, though hepatitis B virus (HBV) infection is the commonest cause of chronic liver disease, HCV is fast evolving as an equally important infection among these popu...

Journal: :Austin journal of gastroenterology 2021

Aims: Healthy gut microbiome plays a crucial role in the treatment of Hepatitis B Virus (HBV) infection and chronic liver disease. Based on existing studies, we aimed to explore difference efficacy Fecal Microbiota Transplantation (FMT) patients with different stages HBV-related Methods: In this study, 10 HBV HBeAg-negative infection, 8 Chronic (CHB) hepatitis cirrhosis Child-Pugh score A, 9 B/...

2011
Jae Young Jang Soung Won Jeong Sung Ran Cheon Sae Hwan Lee Sang Gyune Kim Young Koog Cheon Young Seok Kim Young Deok Cho Hong Soo Kim So Young Jin Yun Soo Kim Boo Sung Kim

BACKGROUND/AIMS We investigated the frequency of occult hepatitis B virus (HBV) infection in anti-hepatitis C virus (HCV)-positive individuals and the effects of occult HBV infection on the severity of liver disease. METHODS Seventy-one hepatitis B virus surface-antigen (HBsAg)-negative patients were divided according to their HBV serological status into groups A (anti-HBc positive, anti-HBs ...

Journal: :jundishapur journal of microbiology 0
sareh zhand department of microbiology, school of medicine, golestan university of medical sciences, gorgan, ir iran chiman karami department of microbiology, school of medicine, golestan university of medical sciences, gorgan, ir iran ahmad hosseinzadeh adli department of microbiology, school of medicine, golestan university of medical sciences, gorgan, ir iran alijan tabarraei department of microbiology, school of medicine, golestan university of medical sciences, gorgan, ir iran behnaz khodabakhshi infectious diseases research centre, golestan university of medical sciences, gorgan, ir iran abdolvahab moradi department of microbiology, school of medicine, golestan university of medical sciences, gorgan, ir iran; department of microbiology, school of medicine, golestan university of medical sciences, gorgan, ir iran. tel: +98-9111772107, fax: + 98-1714440225

conclusions this study indicates that the rate of g1896a mutation at the pc region among hbeag negative patients, in the golestan province of iran, was similar to the average rate encountered in other parts of iran. the pc stop codon mutation was detected in 93.18% of hbeag negative patients. further studies with larger sample sizes are required to elucidate the exact role of these mutations in...

2015
Thomas Mina Samad Amini-Bavil-Olyaee Frank Tacke Piet Maes Marc Van Ranst Mahmoud Reza Pourkarim

CONTEXT After five decades of Hepatitis B Virus (HBV) vaccine discovery, HBV is still a major public health problem. Due to the high genetic diversity of HBV and selective pressure of the host immune system, intra-host evolution of this virus in different clinical manifestations is a hot topic of research. HBV infection causes a range of clinical manifestations from acute to chronic infection, ...

Background Occult hepatitis B infection (OBI) is considered a risk factor for progression of liver disease in patients with hepatitis B virus (HBV) infection. This disease progression is reported to be more significant in those with concomitant HIV infection. We aimed to determine the prevalence rate of OBI in a sample of HIV-positive patients. Materials and Methods: Sixty-six HIV-infected pati...

2009

Chronic liver disease related to viral hepatitis has emerged as a leading public health problem in the Eastern Mediterranean Region. This paper raises awareness regarding the burden of disease related to viral hepatitis and the need for urgent action to prevent hepatitis B virus and hepatitis C virus transmission. More than 75% of cirrhosis and hepatocellular carcinoma in the Region is attribut...

Journal: :Journal of clinical microbiology 1994
W G Quint W P Fetter H C van Os R A Heijtink

During in vitro fertilization, 22 human embryos were exposed to hepatitis B virus (HBV) in contaminated human serum present in the culture medium. All mothers experienced hepatitis B during the first trimester of pregnancy, and two had hepatitis B surface antigen and HBV DNA, as determined by PCR, at the time of delivery. No HBV DNA was found in serum or lymphocytes from the exposed 22 infants....

Journal: :hepatitis monthly 0
jeyanthi suppiah virology unit, institute for medical research, kuala lumpur, malaysia; virology unit, institute for medical research, kuala lumpur, malaysia. tel: +603-26162674 rozainanee mohd zain virology unit, institute for medical research, kuala lumpur, malaysia norazlah bahari pathology unit, selayang hospital, selangor, malaysia salbiah haji nawi microbiology unit, hospital kuala lumpur, kuala lumpur, malaysia zainah saat virology unit, institute for medical research, kuala lumpur, malaysia

conclusions association with sex, genotype and clinical symptoms revealed that the pre-s1 orf deletion occurred in 40% , 40%,and 20% of genotypes b,c, and d respectively, and 80% of the female population, of which all but one were diagnosed with chronic hepatitis b. additionally, several mutations were found in the bcp region with the following incidence rate; c1653 t (8.6%), a1752 g (10.8%),17...

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