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| Registros recuperados: 38 | |
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| FONTES,ANDRÉ M.; ARDISSON,JULIANA S.; SOUZA,MARCO A.A.; FREITAS,RODRIGO R.; PANCOTO,JOÃO A.T.. |
| ABSTRACT The World Health Organization (WHO) estimates that approximately 2 billion people worldwide have already had contact with hepatitis B virus (HBV) and 373 million have become chronic carriers. Hepatitis B is a major cause of chronic hepatitis, cirrhosis and hepatocellular carcinoma, leading to a large number of deaths annually. Both viral factors and the host immune response have been implicated in the pathogenesis and clinical result of HBV infection. Many Brazilian cities, including the cities of the northern region of the state of Espírito Santo are located in regions with little health infrastructure. Our study performed an epidemiological analysis of cases of Hepatitis B in São Mateus, using methodology of Geographic Information System (GIS),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B; Epidemiology; Geoprocessing; Espírito Santo. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401549 |
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| Tavares-Neto,J.; Almeida,D.; Soares,M. C.; Uchoa,R.; Viana,S.; Darub,R.; Farias,E.; Rocha,G.; Vitvitski,L.; Paraná,R.. |
| In 1999, on the occasion of the application of the first vaccine dose during the state vaccination campaign against hepatitis B virus (HBV), 390 individuals from the town of Rio Branco, Acre, aged two or more years were selected for the determination of the seroprevalence of HBV and HCV. HBV markers (HBsAg, anti-HBs, and anti-HBc IgG) were determined on this occasion and anti-HBs antibodies were also assessed 30 days after the third vaccine dose. At the time of vaccination, 39% of the individuals were still susceptible to HBV, while 61% presented serologic evidence of previous HBV contact or previous vaccination. The individuals with previous HBV contact were significantly older (p<0.001) than those without HBV markers. Of the 192 individuals who... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B vaccination; Amazonia; Hepatitis B; Hepatitis C; Epidemiology. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000200003 |
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| Zhao,Si-Hai; Liu,En-Qi; Cheng,Da-Xin; Li,Ya-Feng; Wang,Yan-Li; Chen,Yu-Long; Sun,Wen-Tao; Yan,Xi-Cai; Dang,Shuang-Suo. |
| The results of several new clinical trials that compared the effectiveness of entecavir (ETV) treatment with that of adefovir (ADV) treatment in patients with chronic hepatitis B (CHB) were published in recent years. However, the numbers of patients included in these clinical trials were too small to draw a clear conclusion as to whether ETV is more effective than ADV. Therefore, a new meta-analysis was needed to compare ETV with ADV for the treatment of CHB. A search of the Cochrane Central Register of Controlled Trials (CCTR), MEDLINE, the Science Citation Index, Embase, the China National Knowledge Infrastructure (CNKI), and the Wanfang Database for relevant studies published between 1966 and 2010 was performed. Trials comparing the use of ETV and ADV... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Entecavir; Adefovir; Hepatitis B. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000400010 |
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| Souza,Marinilde Teles; Pinho,Tainá Lima Reis de; Santos,Max Diego Cruz; Santos,Alexsandro dos; Monteiro,Vera Lúcia; Fonsêca,Lena Maria Barros; Ferreira,Pedro Antônio Muniz; Ferreira,Adalgisa de Souza Paiva. |
| INTRODUCTION: Hepatitis B virus (HBV) infection is an important worldwide public health problem. In Brazil, the Ministry of Health estimates that 15% of the population has had contact with HBV, and that the mean rate of chronic carriers in Northeastern Brazil is around 0.5%. OBJECTIVE: The aim of this study was to assess the prevalence of HBV markers in pregnant women receiving prenatal care at the public maternity hospitals of São Luís. Methods: Demographical and epidemiological data were collected from 541 pregnant women according to the research protocol. Blood samples were collected, and the anti-HBc test was performed first. If positive, the sample was subsequently tested for HBsAg and anti-HBs. All HBsAg and/or anti-HBc positive samples were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pregnant; Hepatitis B; HBV-DNA. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000600003 |
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| Emori,Christini Takemi; Perez,Renata Melo; Matos,Carla Adriana Loureiro de; Uehara,Silvia Naomi Oliveira; Pereira,Patricia da Silva Fucuta; Feldner,Ana Cristina Amaral; Carvalho Filho,Roberto José de; Silva,Ivonete Sandra de Souza e; Silva,Antonio Eduardo Benedito; Ferraz,Maria Lucia Gomes. |
| Introduction:There is scarce information regarding clinical evolution of HBV infection in renal transplant patients.Aims:To evaluate the prevalence of acute exacerbation in HBV-infected renal transplant patients and its association with the time after transplantation, presence of viral replication, clinical evolution, and use of antiviral prophylaxis.Materials and methods:HBV infected renal transplant patients who underwent regular follow-up visits at 6-month intervals were included in the study. The criteria adopted to characterize exacerbation were: ALT >5 × ULN and/or >3 × baseline level. Predictive factors of exacerbation evaluated were age, gender, time on dialysis, type of donor, post-transplant time, ALT, HBeAg, HBV-DNA, HCV-RNA,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Renal transplantation; Hepatitis B; ALT flare; Lamivudine. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000600625 |
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| Li,Feng; Zhu,Chang-Lai; Zhang,Hong; Huang,Hua; Wei,Qun; Zhu,Xiang; Cheng,Xiao-Yang. |
| OBJECTIVES: The aim of this study was to evaluate the diagnostic performance of serum HA and LN as serum markers for predicting significant fibrosis in CHB patients. METHODS: Serum HA and LN levels of 87 patients with chronic hepatitis B and 19 blood donors were assayed by RIA. Liver fibrosis stages were determined according to the Metavir scoring-system. The diagnostic performances of all indexes were evaluated by the receiver operating characteristic (ROC) curves. RESULTS: Serum HA and LN concentrations increased significantly with the stage of hepatic fibrosis, which showed positive correlation with the stages of liver fibrosis (HA: r = 0.875, p < 0.001; LN: r = 0.610, p < 0.001). There were significant differences of serum HA and LN levels... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B; Chronic Hyaluronic acid Laminin Liver Cirrhosis ROC curve. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000100002 |
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| Leitão,Cleverson; Ueda,Denis; de Moraes Braga,Anna Carolina; Boldt,Angelica B.W.; Messias-Reason,Iara J.T.. |
| To investigate the association of leprosy with hepatitis B virus (HBV) infection, as yet unknown for South Brazil, we assessed hepatitis B virus coinfection in 199 South Brazilian leprosy patients (119 lepromatous, 15 tuberculoid, 30 borderline, 12 undetermined and 23 unspecified) and in 681 matched blood donors by screening for the hepatitis B virus markers HBSAg and anti-HBc, using ELISA. Positive samples were retested and anti-HBc+ only samples were tested for the hepatitis B surface antibody (anti-HBs). There was a strong association between leprosy and hepatitis B virus infection (OR = 9.8, 95% CI = 6.4–14.7; p = 0.004·E−30), as well as an association between HBV infection and lepromatous leprosy, compared to other forms (OR = 2.4, 95% CI = 1.2–4.8; p... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leprosy; Hepatitis B; Leprosarium; HBV; Mycobacterium leprae. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000100008 |
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| Bonazzi,Patricia R.; Bacchella,Telesforo; Freitas,Angela C.; Osaki,Karina T.; Lopes,Marta H.; Freire,Maristela P.; Machado,Marcel C.C.; Abdala,Edson. |
| Development of immunity to hepatitis B virus in cirrhotic patients waiting for liver transplantation is highly desirable. Though a double-dose regimen is available, little is know about its effectiveness. We examined the efficacy of double-dose hepatitis B virus vaccination in cirrhotic patients waiting for liver transplantation. We studied 43 patients who were waiting for liver transplantation. They were vaccinated with three doses of 40 mg hepatitis B vaccine at 0, 1 and 6 months; the normal dose is 20 mg. Efficacy was measured based on seroconversion of anti-HBs. Global response to the primary vaccination scheme was 67.5% (29 patients). Forty-one per cent of responders had anti-HBs titers above 1,000 IU/mL. No factors were associated with response,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vaccine; Cirrhotic; Hepatitis B; Liver transplant. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000400009 |
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| Almeida,Delvone; Tavares-Neto,José; Vitvitski,Ludmila; Almeida,Alessandro; Mello,Caroline; Santana,Diana; Tatsch,Fernando; Paraná,Raymundo. |
| In the village of Cavunge, located in a dry tropical, semiarid rural region of the state of Bahia, Brazil, a sentinel study on viral hepatitis is underway. We report on the first part of the study. The objective of this study was to determine the prevalence of serological markers for hepatitis A, B and C in the village. Cross sectional study. Blood samples were tested for serological markers of hepatitis A (HAV), B (HBV) and C (HCV) through ELISA-III assay. In HBsAg and anti-HCV carriers, HCV-RNA and HBV-DNA were checked by PCR. The prevalence of anti-HAV IgG was 83.3% (1,210/1,452), being higher among residents from the village (87.4%) than in residents from the rural area (79.5%); it also higher among individuals older than 10 years of age. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis A; Hepatitis B; Hepatitis C; Epidemiology; Brazil. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000500003 |
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| Raboni,Sonia Mara; Tuon,Felipe Francisco; Beloto,Nayara Carvalho Polido; Demeneck,Henrique; Oliveira,Andre; Largura,Denis; Sagrado,Andressa Gervasoni; Lima,Bárbara Perdonsini; Franzoni,João Paulo; Pedroso,Maria Lucia. |
| Hepatitis B virus, hepatitis C virus and human immunodeficiency virus share a similar transmission pathway and are often diagnosed in the same patient. These patients tend to have a faster progression of hepatic fibrosis. This cross-sectional study describes the demographic features and clinical profile of human immunodeficiency virus/hepatitis co-infected patients in Parana, Southern Brazil. A total of 93 human immunodeficiency virus-infected patients attending a tertiary care academic hospital in Southern Brazil were included. Clinical, demographic and epidemiological data were evaluated. Hepatitis B virus and/or hepatitis C virus positive serology was found in 6.6% of patients. The anti-hepatitis C virus serum test was positive in 85% (79/93) of... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Human immunodeficiency virus; Hepatitis B; Hepatitis C; Co-infection. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000600664 |
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| Ciorlia,Luiz A.S.; Zanetta,Dirce M.T.. |
| The prevalence of hepatitis B virus (HBV) in healthcare workers (HCW) in Brazilian university hospitals is high. However, vaccination of these workers and relations with occupational factors are not well documented. A prospective study was made of 1,433 HCW and 872 administrative employees of the Hospital de Base (HB), São José do Rio Preto, SP, Brazil, and 2,583 blood donor candidates from the Hospital Blood Bank. HCW were observed from January 1994 to December 1999. Data were obtained from exams made when a worker entered hospital service, periodically and after work-related injuries. Serological reactions were analyzed in HCW who received HBV vaccine. Occupational and non-occupational information was obtained through a questionnaire. The prevalence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B; Healthcare workers; Prevalence; Vaccination; Occupational injuries. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000500005 |
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| Martins,Saulo; Livramento,Andréa do; Andrigueti,Michelle; Kretzer,Iara Fabricia; Machado,Marcos José; Spada,Celso; Treitinger,Arício. |
| Evidence-based strategies to improve the hepatitis B virus (HBV) vaccination coverage rates might help to reduce the burden caused by co-infection with HBV and human immuno-deficiency virus (HIV). In this study, the aim was to evaluate the vaccination coverage and immunity against HBV among HIV-infected individuals in South Brazil, and identify factors that are associated with compliance patterns and antibody reactivity. Three hundred HIV-infected men and women were included in this survey. The patients answered a standardized questionnaire, and vaccination cards were checked in order to assess hepatitis B vaccine status. A blood sample was collected for quantitative determination of antibody to hepatitis B virus surface antigen (anti-HBs). Participants... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HIV; Hepatitis B; HBV Vaccination; Immunity. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000200181 |
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| Registros recuperados: 38 | |
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