Hepatitis B Hbsag
Mostrando 1-12 de 399 artigos, teses e dissertações.
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1. Coexistence of low levels of HBsAg and high levels of anti-HBs may increase risk of hepatocellular carcinoma in chronic hepatitis B patients with high HBV load
ABSTRACT Objective: The clinical significance of coexistence of HBsAg/anti-HBs in chronic hepatitis B (CHB) patients remains controversial. This study was aimed to assess the association of this serological pattern with hepatocellular carcinoma (HCC) in patients with CHB. Methods: In this cross-section study, 206 CHB patients with coexistence of HBsAg/anti
Braz J Infect Dis. Publicado em: 25/11/2019
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2. Seroprevalence of transfusion-transmissible infectious diseases at a hemotherapy service located in southwest Bahia, Brazil
ABSTRACT Introduction: The serological screening of blood donors has been instituted by the Brazilian Ministry of Health and is mandatory in the research on several diseases transmissible through blood transfusion. Blood banks need to establish a screening service capable of reducing associated transfusions risks. Objective: The objective of this study was
Hematol., Transfus. Cell Ther.. Publicado em: 25/11/2019
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3. Hepatitis B virus infection among oncohematologic disease patients in Central Brazil: prevalence, risk factors and immunization
ABSTRACT Introduction: Carriers of oncohematological diseases are at high risk for hepatitis B virus (HBV) infection. Objective and method: To investigate the epidemiology of HBV infection in Goiânia, Central Brazil, 322 individuals with oncohematological diseases (leukemias, Hodgkin lymphoma and non-Hodgkin lymphoma) were interviewed and blood samples we
Hematol., Transfus. Cell Ther.. Publicado em: 10/10/2019
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4. Inhibitory Effect on the Hepatitis B Cells through the Regulation of miR-122-MAP3K2 signal pathway
Abstract: The aim of this study was to investigate the inhibitory effect of regulation of miR-122-MAP3K2 signal pathway on the hepatitis B cells. We detected the content of MAP3K2 from patients with HBV blood serum samples and analyzed the correlation between content of MAP3K2 and copies of HBV-DNA. Wound healing and Transwell assays were used to detect the
An. Acad. Bras. Ciênc.. Publicado em: 23/05/2019
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5. Decline in hepatitis B and C prevalence among hemodialysis patients in Tocantins, Northern Brazil
ABSTRACT Infection control measures have been responsible for a decline in the prevalence of hepatitis B virus (HBV) and hepatitis C virus (HCV) infections in hemodialysis patients. In Brazil, these measures have been in place since 1996. The aim of this study was to evaluate the current HBV and HCV epidemiology among hemodialysis patients in the State of To
Rev. Inst. Med. trop. S. Paulo. Publicado em: 30/07/2018
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6. Is waste collection associated with hepatitis B infection? A meta-analysis
Abstract This meta-analysis, which is based on a previously published systematic review, aims to contribute to the scientific discussion on hepatitis B virus (HBV) infection in workers who are exposed to domestic and healthcare wastes. Publications were sought which had been made available on the data used by December 2013 and updated to December 2016. The q
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-12
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7. Prevalence of Hepatitis B and C virus infection among alcoholic individuals: importance of screening and vaccination
ABSTRACT Drug users have been reported to have an increased risk for acquisition of viral hepatitis. This study aims to evaluate the prevalence of HBV and HCV infection and usefulness of saliva for HBsAg and anti-HCV detection in alcoholic patients.A total of 90 alcoholic patients were recruited in 2013. HBsAg and anti-HCV were tested in serum and saliva, an
Rev. Inst. Med. trop. S. Paulo. Publicado em: 03/08/2017
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8. Risk factors for hepatitis B transmission in South Brazil
BACKGROUND Hepatitis B virus (HBV) infection is a major public health problem in Brazil. Several risk factors are involved in HBV infection and their identification by a rational and essential approach is required to prevent the transmission of this infection in Brazil. OBJECTIVES To evaluate risk factors associated with HBV infection in South Brazil. M
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-08
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9. Retrospective analysis of hepatitis B virus chronic infection in 247 patients: clinical stages, response to treatment and poor prognostic factors
Abstract Background: Chronic hepatitis B is a major cause of cirrhosis, and the natural history of the disease has several clinical stages that should be thoroughly understood for the implementation of proper treatment. Nonetheless, curing the disease with antiviral treatment remains a challenge. Aims: To describe the clinical course, response to treatment
Braz J Infect Dis. Publicado em: 2017-08
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10. Detection and molecular characterisation of a diagnosis escape variant associated with occult hepatitis B virus in Brazil
BACKGROUND Many studies have identified mutations in the hepatitis B surface antigen (HBsAg) as important factors limiting the ability of commercial serological assays to detect this viral antigen. However, an association between mutations in the HBsAg gene and the occurrence of occult HBV infection (OBI) in patients has not been established. OBJECTIVES
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-07
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11. Poor sensitivity of rapid tests for the detection of antibodies to the hepatitis B virus: implications for field studies
Rapid tests (RTs) can be used as an alternative method for the conventional diagnosis of hepatitis B virus (HBV). This study aims to evaluate antibodies to HBsAg (anti-HBs) and antibodies to HBeAg (anti-HBe) RTs under different Brazilian settings. The following three groups were included: GI: viral hepatitis outpatient services; GII: low resource areas; and
Mem. Inst. Oswaldo Cruz. Publicado em: 30/01/2017
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12. ADVANCED LIVER INJURY IN PATIENTS WITH CHRONIC HEPATITIS B AND VIRAL LOAD BELOW 2,000 IU/mL
SUMMARY Introduction: According to the guidelines, the viral load of 2,000 IU/mL is considered the level to differentiate between inactive carriers and HBeAg(-) chronic hepatitis B patients. Even so, liver damage may be present in patients with lower viral load levels, mainly related to regional variations. This study aims to verify the presence of liver in
Rev. Inst. Med. trop. S. Paulo. Publicado em: 22/09/2016