Results 1 to 10 of about 63,770 (211)

Occult hepatitis B virus infection and its demographic and clinical determinants among blood donors in Saudi Arabia: A retrospective cross-sectional study [PDF]

Journal of International Medical Research
Objective Occult hepatitis B virus infection, characterized by the presence of hepatitis B virus DNA in the absence of detectable hepatitis B surface antigen, poses a significant risk to blood donation safety. This study aimed to determine the prevalence
Abdulrahman F Alrezaihi, Lama Alzamil, Abdulrahman Alshalani, Jawaher Alsughayyir, Fahad S Alshehri, Abdulaziz M Almuqrin   +5 more
doaj   +2 more sources

Naturally occurring mutations in large surface genes related to occult infection of hepatitis B virus genotype C. [PDF]

PLoS ONE, 2013
Molecular mechanisms related to occult hepatitis B virus (HBV) infection, particularly those based on genotype C infection, have rarely been determined thus far in the ongoing efforts to determine infection mechanisms.
Hong Kim, Seoung-Ae Lee, Dong-Won Kim, Sueng-Hyun Lee, Bum-Joon Kim   +4 more
doaj   +1 more source

Molecular investigation of occult hepatitis B virus infection in a reference center in Northern Brazil

Brazilian Journal of Infectious Diseases, 2022
The goal of this study was to investigate the prevalence of occult HBV infection in a reference center for the Northern Brazil from 2005 to 2015 and to identify mutations associated with occult hepatitis B.
Suellen dos Reis Araújo, Andreza Pinheiro Malheiros, Vânia Pinto Sarmento, Heloisa Marceliano Nunes, Pedro Eduardo Bonfim Freitas   +4 more
doaj   +1 more source

Occult hepatitis B virus infection in anti-HBs-positive infants born to HBsAg-positive mothers in China. [PDF]

PLoS ONE, 2013
OBJECTIVE: To investigate the prevalence of occult HBV infection (OBI) among children and to characterize virology of occult HBV, we conducted an epidemiological survey.
Haixia Su, Yuhai Zhang, Dezhong Xu, Bo Wang, Lei Zhang, Duan Li, Dan Xiao, Fan Li, Jingxia Zhang, Yongping Yan   +9 more
doaj   +1 more source

The impact of hepatitis B virus and hepatitis C virus infections in patients with Hodgkin's and non-Hodgkin’s lymphoma

International Journal of Immunopathology and Pharmacology, 2023
Background: This study aimed to determine the prevalence of HCV and occult HBV among newly diagnosed pre-treatment Egyptian lymphoma patients and evaluate patients’ outcomes based on the presence of the viral infections.
Dalia Y Kadry, Mostafa A Elbahnasawy, Mohamed TM Mansour, Omnia K EL Gebaly, Hala Aziz, Mahmoud M Kamel, Ahmed S Abdel-Moneim, Samah Radwan   +7 more
doaj   +1 more source

Occult hepatitis B in mexican patients with HIV, an analysis using nested polymerase chain reaction

Annals of Hepatology, 2006
Hepatitis B virus infection (HBV) with undetectable levels of HBsAg, has been named occult HBV infection and observed in immunosuppressed patients. The aim of this study was to determine the frequency of occult HBV infection in patients with HIV from the
Rodrigo Torres-Baranda, Blanca E. Bastidas-Ramírez, Montserrat Maldonado-González, Laura V. Sánchez-Orozco, Eduardo Vázquez-Vals, Eduardo Rodríguez-Noriega, Arturo Panduro   +6 more
doaj   +1 more source

Distinct immunoregulatory cytokine pattern in Egyptian patients with occult Hepatitis C infection and unexplained persistently elevated liver transaminases

Asian Journal of Transfusion Science, 2012
Background/Aim: The immunopathogenesis of occult Hepatitis C virus (HCV) infection is a matter of great controversy and has been suggested to involve a complex balance between cytokines with pro- and anti-inflammatory activity.
Yahia Z Gad, Narres Mouas, Azza Abdel-Aziz, Nashwa Abousmra, Mona Elhadidy   +4 more
doaj   +1 more source

An occult hepatitis B-derived hepatoma cell line carrying persistent nuclear viral DNA and permissive for exogenous hepatitis B virus infection. [PDF]

PLoS ONE, 2013
Occult hepatitis B virus (HBV) infection is defined as persistence of HBV DNA in liver tissues, with or without detectability of HBV DNA in the serum, in individuals with negative serum HBV surface antigen (HBsAg).
Chih-Lang Lin, Rong-Nan Chien, Shi-Ming Lin, Po-Yuan Ke, Chen-Chun Lin, Chau-Ting Yeh   +5 more
doaj   +1 more source

Occult Hepatitis C virus infection among hemodialysis patients [PDF]

, 2008
Occult hepatitis C virus (HCV) infection (i.e., detectable HCV-RNA in the liver or peripheral blood mononuclear cells) in the absence of both serum HCV-RNA and anti-HCV antibodies has not been investigated in hemodialysis patients. In this
Barril, G. (Guillermina), Castillo, I. (Inmaculada), Arenas, M.D. (María Dolores), Espinosa, M. (Mario), Garcia-Valdecasas, J. (Juan), Garcia-Fernandez, N. (Nuria), Gonzalez-Parra, E. (Emilio), Alcazar, J.M. (José María), Sanchez, C. (Carmen), Diez-Baylon, J.C. (José Carlos), Martinez, P. (Pilar), Bartolome, J. (Javier), Carreño, V. (Vicente)   +12 more
core   +1 more source

Impact of schistosomiasis on increase incidence of occult hepatitis B in chronic hepatitis C patients in Egypt

Journal of Infection and Public Health, 2017
Co-infection of schistosomiasis, HBV and HCV is common in countries where schistosomiasis is endemic. Occult hepatitis B occurs in patients at high risk for HBV infection (e.g., patients on hemodialysis, patients receiving blood transfusions ...
Hanan H. Omar, Samaa A. Taha, Wafaa H. Hassan, Hamdy H. Omar   +3 more
doaj   +1 more source