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Cross-sectional study to determine viral hepatitis knowledge in different urban populations in Brazil

World Journal of Hepatology 2018年第11期10卷 867-876页

作者： Helena Medina Cruz Jakeline Ribeiro Barbosa Jeová Keny Baima Colares Antonio Henrique Almeida de Moraes Neto Maria de Fátima Leal Alencar Francisco Inácio Bastos Jurema Corrêa da Mota Filipe Aníbal Carvalho-Costa Claudia Alexandra Pontes Ivantes lia laura lewis-ximenez Livia Melo Villar Laboratory of Viral HepatitisOswaldo Cruz Institute Fiocruz Rio de Janeiro 21040360 Brazi Postgraduate Program in Pathology Federal University of Ceará Fortaleza Ceará 60020181 Brazil Postgraduate Program in Medical Sciences University of Fortaleza Ceará 60430160 Brazil Laboratory of Innovations in Therapies Teaching and Bioproducts Oswaldo Cruz Institute Fiocruz Rio de Janeiro 21040360 Brazil Institute of Communication and Scientifc Information and Technology for Health Oswaldo Cruz Foundation Rio de Janeiro 21040900 Brazil Laboratory of Epidemiology and Molecular Systematics Oswaldo Cruz Institute Fiocruz Rio de Janeiro 21040900 Brazil Orientation and Counselling Centre Curitiba Paraná 80810070 Brazil

AIM To evaluate viral hepatitis knowledge among individuals from different resource areas and health conditions to identify possible *** A cross-sectional, descriptive study was carried out among 447 individuals from five distinct populations in Brazil: Southeast Viral Hepatitis Ambulatory(n = 100), South(n = 89) and Northeast(n = 114) Health Center, Southeast(n = 77) and Northeast(n = 67) low resource areas. All individuals answered a questionnaire assessing sociodemographic characteristics and viral hepatitis awareness. The perception was scored based on the average number of correct answers of all participants and categorized as "low"(0-28 correct answers) or "desirable"(29-46 correct answers). Associations between sociodemographic characteristics and perception were also *** A low level of knowledge was observed in individuals from Northeast Health Center, Northeast and Southeast low resource areas while desirable knowledge was observed in individuals from Viral Hepatitis Ambulatory and South Health Center. According to sociodemographic characteristics, desirable scores were more common among those with secondary education(47.1%), those who declared themselves as white(46.3%), and those who lived in houses with three individuals(25.5%). Multivariate analysis showed an association between viral hepatitis perception and type of population. CONCLUSION The results demonstrated high level of knowledge among study participants from health clinics from the Southeast region of Brazil and the importance of education programs in increasing the level of knowledge in low resource areas.

关键词： Viral hepatitis Knowledge Perception Urban population Brazil

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Changes in cellular proliferation and plasma products are associated with liver failure

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World Journal of Hepatology 2016年第32期8卷 1370-1383页

作者： Juliana Gil Melgaco Frederico Marianetti Soriani Pedro Henrique Ferreira Sucupira Leonardo Assaf Pinheiro Yasmine Rangel Vieira Jaqueline Mendes de Oliveira lia laura lewis-ximenez Cristina Carvalho Vianna Araújo Lúcio Filgueiras Pacheco-Moreira Gustavo Batista Menezes Oswaldo Goncalves Cruz Claudia Lamarca Vitral Marcelo Alves Pinto Departamento de Microbiologia e Parasitologia Universidade Federal Fluminense Instituto Oswaldo Cruz/Fiocruz Laboratório de Desenvolvimento Tecnológico em Virologia Departamento de Biologia Geral Instituto de Ciencias BiologicasUniversidade Federal de Minas Gerais Instituto Oswaldo Cruz/Fiocruz Ambulatório de Hepatites Virais Hospital Federal de Bonsucesso Laboratório de Imunofarmacologia Departamento de Bioquímica e ImunologiaInstituto de Ciencias BiológicasUniversidade Federal de Minas Gerais Fundacao Oswaldo Cruz Programa de Computacao Científica

AIM To study the differences in immune response and cytokine profile between acute liver failure and selflimited acute *** Forty-six patients with self-limited acute hepatitis(AH), sixteen patients with acute liver failure(ALF), and twenty-two healthy subjects were involved in this study. The inflammatory and anti-inflammatory products in plasma samples were quantified using commercial enzyme-linked immunoassays and quantitative real-time PCR. The cellular immune responses were measured by proliferation assay using flow cytometry. The groups were divided into viral- and non-viral-induced selflimited AH and ALF. Thus, we worked with five groups: Hepatitis A virus(HAV)-induced self-limited acute hepatitis(HAV-AH), HAV-induced ALF(HAV-ALF), nonviral-induced self-limited acute hepatitis(non-viral AH), non-viral-induced acute liver failure(non-viral ALF), and healthy subjects(HC). Comparisons among HAV and non-viral-induced AH and ALF were *** The levels of mitochondrial DNA(mt DNA) and the cytokines investigated [interleukin(IL)-6, IL-8, IL-10, interferon gamma, and tumor necrosis factor] were significantly increased in ALF patients, independently of etiology(P < 0.05). High plasma mt DNA and IL-10 were the best markers associated with ALF [mt DNA: OR = 320.5(95%CI: 14.42-7123.33), P < 0.0001; and IL-10: OR = 18.8(95%CI: 1.38-257.94), P = 0.028] and death [mt DNA: OR = 12.1(95%CI: 2.57-57.07), P = 0.002; and IL-10: OR = 8.01(95%CI: 1.26-50.97), P = 0.027]. In the cellular proliferation assay, NK^(bright), NKT and regulatory T cells(TReg) predominated in virusspecific stimulation in HAV-induced ALF patients with an anergic behavior in the cellular response to mitotic stimulation. Therefore, in non-viral-induced ALF, anergic behavior of activated T cells was not observed after mitotic stimulation, as expected and as described by the literature. CONCLUSION mt DNA and IL-10 may be predictors of ALF and death. TReg cells are involved in immunologi

关键词： Acute liver failure Cytokines Mitochondrial DNA Cellular immune response Hepatitis A virus

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Dried blood spot sampling as an alternative for the improvement of hepatitis B and C diagnosis in key populations

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World Journal of Hepatology 2021年第4期13卷 504-514页

作者： Geane Lopes Flores Jakeline Ribeiro Barbosa Helena Medina Cruz Juliana Custódio Miguel Denise Vigo Potsch JoséHenrique Pilotto Danielle Malta Lima JeováKeny Baima Colares Carlos Eduardo Brandão-Mello Marcia Maria Amendola Pires Jurema Corrêa da Mota Francisco I Bastos lia laura lewis-ximenez Livia Melo Villar Viral Hepatitis Laboratory FIOCRUZRio de Janeiro 21040360Brazil Postgraduate Program in Pathology Federal University of CearáFortaleza 60020181CearaBrazil Clementino Fraga Filho Hospital Federal University of Rio de JaneiroRio de Janeiro 21040360Brazil Nova Iguaçu General Hospital Nova Iguaçu 26041061Brazil Molecular Immunology Laboratory Oswaldo Cruz InstituteRio de Janeiro 21040360Brazil Postgraduate Program in Medical Sciences University of FortalezaFortaleza 60811905CearáBrazil Escola de Medicina e Cirurgia Gaffrée&Guinle University HospitalFederal University of Rio de Janeiro StateRio de Janeiro 20270901Brazil Institute of Communication and Information on Science and Technology in Health FIOCRUZRio de Janeiro 21040360Brazil

BACKGROUND To achieve the elimination of hepatitis B and C,there is an urgent need to develop alternative strategies to increase the access of diagnosis,particularly among key populations such as people living with human immunodeficiency virus(HIV),individuals with coagulopathies and chronic kidney disease(CKD)*** To evaluate the use of dried blood spot(DBS)in the detection of hepatitis B virus(HBV)and hepatitis C virus(HCV)*** A total of 430 individuals comprised of people living with HIV,coagulopathies and CKD provided paired serum and DBS ***,anti-HBc and anti-HCV were tested in those samples using a commercial *** and selected behavioral variables were evaluated to assess possible association with HBV and HCV *** Using DBS,HBsAg prevalence varied from 3.9%to 22.1%,anti-HBc rates varied from 25.5%to 45.6%and anti-HCV positivity ranged from 15.9%to 41.2%in key *** of HBV and HCV tests using DBS varied from 88.9%to 100%.The HBsAg assay demonstrated the best performance in CKD and coagulopathy individuals and the anti-HCV test had a sensitivity and specificity of 100%in people living with *** of HBV and HCV detection in DBS varied from 90.2%to 100%.In the CKD group,HBsAg positivity was associated with infrequent use of condoms,and anti-HBc positivity was associated with sharing nail cutters/razors/***-HCV reactivity was positively associated with a history of transplantation and length of time using hemodialysis in both *** people living with HIV,only the male gender was associated with anti-HBc positivity in serum and *** DBS with electrochemiluminescence are useful tools for the diagnosis and prevalence studies of hepatitis B and C among key populations and may increase the opportunity to foster prevention and treatment.

关键词： Dried blood spot Electrochemiluminescence Hepatitis B Hepatitis C Key populations Diagnosis

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Hepatitis B virus prevalence and transmission risk factors in inflammatory bowel disease patients at Clementino Fraga Filho university hospital

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World Journal of Gastroenterology 2008年第20期14卷 3201-3206页

作者： Yolanda Faia Manhes Tolentino Homero Soares Fogaa Cyrla Zaltman lia laura lewis Ximenes Henrique Sérgio Moraes Coelho Internal Medicine Department Gastroenterology Unit of Clementino Fraga Filho University Hospital Federal University of Rio de Janeiro Rio de Janeiro 21941-913 Brazil Virology Department OswaldoCruz Foundation 21045-900 Brazil

AIM: To evaluate the prevalence of hepatitis B virus (HBV) infection in inflammatory bowel disease (IBD) patients that followed up in our hospital and try to identify the possible risk factors involved in this infection transmission. METHODS: This was a cross-sectional study for which 176 patients were selected according to their arrival for the medical interview. All these patients had already IBD diagnosis. The patient was interviewed and a questionnaire was filled out. RESULTS: In the group of 176 patients whom we examined, we found that 17% (30) were anti-HBc positive. Out of 30 patients with positive anti-HBc, 2.3% (4) had positive HBsAg and negative HBV-DNA. In an attempt to identify the possible HBV infection transmission risk factors in IBD patients, it was observed that 117 patients had been submitted to some kind of surgical procedure, but only 24 patients had positive anti-HBc (P = 0.085). It was also observed that surgery to treat IBD complications was not a risk factor for HBV infection transmission, since we did not get a statically significant P value. However, IBDpatients that have been submitted to surgery to treat IBD complications received more blood transfusions then patients submitted to other surgical interventions (P = 0.015). CONCLUSION: There was a high incidence of positive anti-HBc (17%) and positive HBsAg (2.3%) in IBD patient when compared with the overall population (7.9%).

关键词： Inflammatory bowel disease Hepatitis Bvirus Prevalence Risk factors

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