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| Registros recuperados: 38 | |
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| Catellanos Puerto,Edelis; Mc Cook Noa,Leysis; n Mayor,Adriana; Vázquez González,Tatiana; Maceira,María Celia; Matos,Odalis. |
| Se realizó un estudio utilizando el extracto acuoso de Aloe vera L. para determinar su actividad inmunogénica en ratones Bal/C inmunizados con la vacuna recombinante contra hepatitis B (Herbiovac HB) de producción nacional. Específicamente se evaluó la latencia, la intensidad, la durabilidad y la memoria inmunológica a través de extracciones que se les hicieron en varios tiempos (3, 5, 27 semanas, 1 año y 15 días después de los 2 últimos tiempos); la muestra obtenida fue procesada mediante micro ELISA tipo sandwich para cuantificar anticuerpos contra el virus de la hepatitis B (anti HB). Se trabajó con 2 grupos de trabajo (control y tratamiento con Aloe) a los que se les inoculó por vía subcutánea solución salina y extracto acuoso inyectable de Aloe B M... |
| Tipo: Journal article |
Palavras-chave: Adyuvante; Hepatitis B; HBs Ag; Aloe vera. |
| Ano: 2006 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962006000300008 |
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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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| Villar,Livia M.; Ó,Kycia Maria R. do; Scalioni,Leticia P.; Cruz,Helena M.; Portilho,Moyra M.; Mendonça,Ana Carolina F.; Miguel,Juliana C.; Figueiredo,Andreza S.; Almeida,Adilson J. de; Lampe,Elisabeth. |
| Background: Data regarding Hepatitis B and C viruses (HBV and HCV) prevalence among military personnel in Brazil are lacking, but the work-related risk of exposure can be high. The objective of this study was to estimate the seroprevalence of HBV and HCV and the risk factors associated to HBV exposure among Brazilian military personnel.Methods: A cross-sectional study was conducted and included 433 male military adults aged 18-25 years old working in Rio de Janeiro during October 2013. All individuals completed a questionnaire to assess their risk of exposure and provided a blood sample to HBV and HCV testing.Results: None of the participants presented HBsAg or anti-HBc IgM, 18 (4.1%) were positive for total anti-HBc, 247 (57.0%) were positive for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B; Hepatitis C; Prevalence; Military personnel. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000300285 |
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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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| 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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| Silva Souza,Adaliany Cecília da; Souza Marasca,Giórgia de; Kretzmann-Filho,Nélson Alexandre; Dall-Bello,Aline; Kliemann,Dimas Alexandre; Tovo,Cristiane Valle; Veiga,Ana Beatriz Gorini da. |
| Abstract Infection by hepatitis B virus (HBV) is a worldwide public health problem. Chronic HBV infection with high viral replication may lead to cirrhosis and/or hepatocellular carcinoma. Mutant HBV strains, such as the HBV A1762T/G1764A double mutant, have been associated with poor prognosis and higher risk of the patient for developing cirrhosis and/or hepatocellular carcinoma. This study analyzed the presence of the HBV A1762T/G1764A double mutant in patients with chronic HBV and its association with clinical parameters such as viral load, aminotransferases, and HBV antigens. A total of 49 patients with chronic hepatitis B were included in the study, and the HBV A1762T/G1764A double mutant strain was detected in four samples (8.16%) by polymerase chain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B; HBV; A1762T/G1764A mutation. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000500525 |
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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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| 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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| 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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| Cunha-Silva,Marlone; Marinho,Fábio R.T.; Oliveira,Paulo F.; Lopes,Tirzah M.; Sevá-Pereira,Tiago; Lorena,Sonia L.S.; Almeida,Jazon R.S.. |
| 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, and poor prognostic factors in 247 hepatitis B virus chronic infection patients treated in a tertiary hospital in Brazil. Methods: This was a retrospective and observational study, by analyzing the medical records of HBV infected patients between January 2000 and January 2015. Results: Most patients were male (67.2%) and 74.1% were HBeAg negative. Approximately 41% had cirrhosis and 8.5% were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis B; Clinical stages; Treatment; Liver cirrhosis; Hepatocellular carcinoma. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000400441 |
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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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| Rosini,Nilton; Mousse,Donaida; Spada,Celso; Treitinger,Arício. |
| The prevalence of infection by the hepatitis B (HBV) and C (HCV) viruses varies among geographical regions. We evaluated 263,795 blood donor samples collected from 1999-2001 in various cities in the state of Santa Catarina to determine the prevalence of HbsAg, anti-HBc and anti-HCV markers. The markers were analyzed by immunoenzymatic tests, as determined by the Ministry of Health, and the data were obtained from blood banks and from ANVISA (the Brazilian National Agency for Sanitary Vigilance). There was a significant reduction in the mean frequency of HbsAg and anti-HBc during the study period, from 0.98% to 0.64% and from 8.83% to 5.35%, respectively, though they varied considerably among the different regions. There was also a decrease in the mean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood donors; Hepatitis B; Hepatitis C; HbsAg; Anti-HBc; Anti-HCV. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000400006 |
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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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