Results: 57

Detection of occult hepatitis B in serum and oral fluid samples

Mem. Inst. Oswaldo Cruz; 113 (1), 2018
In occult hepatitis B infection (OBI), hepatitis B virus DNA (HBV DNA) can be detected in serum samples; however, oral fluid collection for detection of HBV DNA has not yet been explored, despite the availability of collection devices. Serum and oral fluid samples from 45 hepatitis B core antibody (anti-...

Risk Factors for Prognosis of Hepatocellular Carcinoma After Curative Resection In Patients with Low Hepatitis B Viral Load

Ann. hepatol; 16 (3), 2017
ABSTRACT Background. A retrospective cohort study was conducted to investigate the effect of hepatitis B surface antigen (HBsAg) level on prognosis in low viral load (< 2000 lU/mL) patients with hepatitis B-related hepatocellular carcinoma (HCC) after curative resection. Material and methods. A tota...

Viral Outcome in Patients with Occult HBV Infection or HCV-Ab Positivity Treated for Lymphoma

Ann. hepatol; 16 (2), 2017
ABSTRACT HBV and HCV reactivation has been widely reported in patients undergoing immunosuppressive therapy for oncohaematological diseases. We aimed to evaluate the HBV and HCV reactivation events in patients with non-Hodgkin lymphoma (NHL) or Hodgkin lymphoma (HL) underwent cytotoxic chemotherapy conta...

Poor sensitivity of rapid tests for the detection of antibodies to the hepatitis B virus: implications for field studies

Mem. Inst. Oswaldo Cruz; 112 (3), 2017
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 hepat...

Association Between Hepatitis B Virus and Chronic Kidney Disease: a Systematic Review and Meta-analysis

Ann. hepatol; 16 (1), 2017
Abstract: Background. Hepatitis B virus infection and chronic kidney disease are prevalent and remain a major public health problem worldwide. It remains unclear how infection with hepatitis B virus impacts on the development and progression of chronic kidney disease. Aim. To evaluate the effect of inf...

TeleCondutas: hepatite B

As hepatite virais apresentam forma clínicas diversas, desde infecções assintomáticas até quadros de hepatopatia avançada, como cirrose e hepatocarcinoma. A equipe da atenção primária deve investigar pessoas com sinais e sintomas comuns da infecção, bem como assintomáticos que fazem parte do ...

In-house quantitative real-time PCR for the diagnosis of hepatitis B virus and hepatitis C virus infections

Braz. j. microbiol; 47 (4), 2016
Abstract The quantification of viral nucleic acids in serum by real-time PCR plays an important role in diagnosing hepatitis B virus and hepatitis C virus infection. In this study, we developed an assay using specific primers and probes to quantify hepatitis B virus DNA or hepatitis C virus RNA in serum ...

An original method for producing acetaldehyde and diacetyl by yeast fermentation

Braz. j. microbiol; 47 (4), 2016
Abstract In this study a natural culture medium that mimics the synthetic yeast peptone glucose medium used for yeast fermentations was designed to screen and select yeasts capable of producing high levels of diacetyl and acetaldehyde. The presence of whey powder and sodium citrate in the medium along wi...

Prevalence of occult hepatitis b infection in iranian cancer patients before chemotherapy treatment

Arq. gastroenterol; 53 (3), 2016
ABSTRACT Background Occult hepatitis B infection is characterized by negative hepatitis B surface antigen (HBsAg) and also detectable hepatitis B virus (HBV) -DNA, with or without hepatitis B core antibody (anti-HBc). HBV reactivation in individuals under immunosuppressive therapy is critical, occurring...

Clinical, demographic, and epidemiologic characteristics of hepatitis B virus-infected patients at a tertiary public hospital in Presidente Prudente, State of São Paulo, Brazil

Abstract: INTRODUCTION: Few studies have addressed the primary characteristics of patients infected with hepatitis B virus (HBV) in the general population, especially those living in small- and medium-sized cities in Brazil. We aimed to determine the clinical, demographic, and epidemiologic characteristi...