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au:SILVA, ANTONIO EDUARDO BENEDITO

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Using miriti petiole to produce particleboards
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Furtini, Ana Carolina Corrêa

; Santos, Carolina Aparecida dos

; Miranda, Eduardo Hélio de Novais

; Villarruel, Denisse Concepción Vega

; Gomes, Diogo Antonio Correa

; Ferreira, Gracialda Costa

; Silva, Marcela Gomes da

; Mendes, Lorival Marin

; Guimarães Júnior, Jose Benedito

Ambiente Construído

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apr 2023, Volume 23 N. 2 Pages 149 - 162

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract This study aimed to use the petiole residues of miriti to partially replace pine wood and evaluate the effects of this incorporation on the physical and mechanical properties of the particleboards. Panels were produced with 0, 25, 50, and 75% of miriti in partial replacement of wood and 12% of urea-formaldehyde adhesive. The chemical-physical properties of miriti residues showed potential particleboard production as they were similar to those of pinewood. For the physical properties, the panels were classified as low density. There was an increase in the compression ratio and, consequently, in the hygroscopicity . For the mechanical properties, it was observed that the modulus of elasticity (MOE) and modulus of rupture (MOR) did not show any statistical differences. For perpendicular traction (PT), there was a significant reduction in 50%. Considering a general analysis of the physical and mechanical properties, up to 40% of mirti can be substituted, as in this situation they meet the properties mentioned in CS-236-66, except for PT for commercialization of the panels.

Resumo O objetivo deste trabalho foi utilizar os resíduos do pecíolo do miriti em substituição parcial da madeira de pinus e avaliar os efeitos dessa incorporação nas propriedades físicas e mecânicas dos painéis aglomerados. Os painéis foram produzidos com 0, 25, 50 e 75% de miriti em substituição parcial de madeira e 12% de adesivo uréia-formaldeído. As propriedades físico-químicas dos resíduos de miriti mostraram potencial de produção de aglomerados, uma vez que foram semelhantes às do pinus. Quanto às propriedades físicas, os painéis foram classificados como de baixa densidade. Houve aumento na taxa de compressão e, consequentemente, na higroscopicidade. Para as propriedades mecânicas, observou-se que o módulo de elasticidade (MOE) e o módulo de ruptura (MOR) não houve diferença estatística. Para tração perpendicular (TP) houve redução significativa de 50%. Considerando uma análise geral das propriedades físicas e mecânicas, é possível uma substituição em até 40% de miriti, pois nessa situação atendem as propriedades mencionadas na CS-236-66, com exceção da TP para a comercialização dos painéis.

https://doi.org/10.1590/s1678-86212023000200668

Efficacy and safety of Ixekizumab vs. low-dose IL-2 vs. Colchicine vs. standard of care in the treatment of patients hospitalized with moderate-to-critical COVID-19: A pilot randomized clinical trial (STRUCK: Survival Trial Using Cytokine Inhibitors)
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Bonifácio, Lívia Pimenta

; Ramacciotti, Eduardo

; Agati, Leandro Barile

; Vilar, Fernando Crivelenti

; Silva, Anna Christina Tojal da

; Louzada Júnior, Paulo

; Fonseca, Benedito Antônio Lopes da

; Souza, Hayala Cristina Cavenague de

; Oliveira, Caroline Candida Carvalho de

; Aguiar, Valéria Cristina Resende

; Quadros, Carlos Augusto de Aguiar

; Dusilek, Cesar

; Itinose, Kengi

; Risson, Ricardo

; Ferreira, Lucas Roberto Rivabem

; Lopes, Renato Delascio

; Kallas, Esper Georges

; Bellissimo-Rodrigues, Fernando

Revista da Sociedade Brasileira de Medicina Tropical

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2023, Volume 56 elocation e0565-2022

Abstract: En | Text: En | PDF: En

ABSTRACT Background: Cases of coronavirus disease 2019 (COVID-19) requiring hospitalization continue to appear in vulnerable populations, highlighting the importance of novel treatments. The hyperinflammatory response underlies the severity of the disease, and targeting this pathway may be useful. Herein, we tested whether immunomodulation focusing on interleukin (IL)-6, IL-17, and IL-2, could improve the clinical outcomes of patients admitted with COVID-19. Methods: This multicenter, open-label, prospective, randomized controlled trial was conducted in Brazil. Sixty hospitalized patients with moderate-to-critical COVID-19 received in addition to standard of care (SOC): IL-17 inhibitor (ixekizumab 80 mg SC/week) 1 dose every 4 weeks; low-dose IL-2 (1.5 million IU per day) for 7 days or until discharge; or indirect IL-6 inhibitor (colchicine) orally (0.5 mg) every 8 hours for 3 days, followed by 4 weeks at 0.5 mg 2x/day; or SOC alone. The primary outcome was accessed in the “per protocol” population as the proportion of patients with clinical improvement, defined as a decrease greater or equal to two points on the World Health Organization’s (WHO) seven-category ordinal scale by day 28. Results: All treatments were safe, and the efficacy outcomes did not differ significantly from those of SOC. Interestingly, in the colchicine group, all participants had an improvement of greater or equal to two points on the WHO seven-category ordinal scale and no deaths or patient deterioration were observed. Conclusions: Ixekizumab, colchicine, and IL-2 were demonstrated to be safe but ineffective for COVID-19 treatment. These results must be interpreted cautiously because of the limited sample size.

https://doi.org/10.1590/0037-8682-0565-2022

UPDATE OF THE BRAZILIAN SOCIETY OF HEPATOLOGY RECOMMENDATIONS FOR DIAGNOSIS AND MANAGEMENT OF AUTOIMMUNE DISEASES OF THE LIVER
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COUTO, Cláudia Alves

; TERRABUIO, Debora Raquel Benedita

; CANÇADO, Eduardo Luiz Rachid

; PORTA, Gilda

; LEVY, Cynthia

; SILVA, Antônio Eduardo Benedito

; BITTENCOURT, Paulo Lisboa

; CARVALHO FILHO, Roberto José de

; CHAVES, Dalton Marques

; MIURA, Irene Kazue

; CODES, Liana

; FARIA, Luciana Costa

; EVANGELISTA, Andreia Silva

; FARIAS, Alberto Queiroz

; GONÇALVES, Luciana Lofêgo

; HARRIZ, Michelle

; LOPES, Edmundo Pessoa de Almeida

; LUZ, Gustavo Oliveira

; OLIVEIRA, Patrícia Marinho Costa

; OLIVEIRA, Elze Maria Gomes

; SCHIAVON, Janaina Luz Narciso

; SEVÁ-PEREIRA, Tiago

Arquivos de Gastroenterologia

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jun 2019, Volume 56 N. 2 Pages 232 - 241

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Desde a publicação em 2015 das recomendações da Sociedade Brasileira de Hepatologia sobre a prevenção e tratamento de doenças hepáticas autoimunes, novos dados baseados em evidências científicas foram publicados na literatura, mudando o diagnóstico e tratamento da hepatite autoimune (HAI), colangite biliar primária (CBP), colangite esclerosante primária (CEP), síndromes de sobreposição de HAI, CBP e CEP e o manejo de complicações específicas além de outros tópicos relativos à HAI e doenças hepáticas colestáticas. Este manuscrito atualiza as recomendações anteriores de acordo com as melhores evidências disponíveis na literatura até o momento. O mesmo painel de experts que participou da primeira diretriz revisou todas as recomendações de acordo com os dados publicados na literatura e elaborou um manuscrito submetido subsequentemente à apreciação e revisão de todos os membros da Sociedade Brasileira de Hepatologia via homepage da sociedade. As recomendações finais atualizadas foram condensadas no presente documento.

ABSTRACT New data concerning the management of autoimmune liver diseases have emerged since the last single-topic meeting sponsored by the Brazilian Society of Hepatology to draw recommendations about the diagnosis and treatment of autoimmune hepatitis (AIH), primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), overlap syndromes of AIH, PBC and PSC and specific complications and topics concerning AIH and cholestatic liver diseases. This manuscript updates those previous recommendations according to the best evidence available in the literature up to now. The same panel of experts that took part in the first consensus document reviewed all recommendations, which were subsequently scrutinized by all members of the Brazilian Society of Hepatology using a web-based approach. The new recommendations are presented herein.

https://doi.org/10.1590/s0004-2803.201900000-43 3841 downloads

Molecular profile of non-small cell lung cancer in northeastern Brazil
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Oliveira, Ana Claudia da Silva Mendes de

; Silva, Antonio Vinicios Alves da

; Alves, Marclesson

; Cronemberger, Eduardo

; Carneiro, Benedito Arruda

; Melo, Juliana Carneiro

; Martins Neto, Francisco

; Tavora, Fabio

Jornal Brasileiro de Pneumologia

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2019, Volume 45 N. 3 elocation e20180181

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: Investigar os subtipos histológicos e perfis de mutação do carcinoma pulmonar de células não pequenas no Brasil, bem como as correlações entre os subtipos histológicos, a expressão do gene anaplastic lymphoma kinase (ALK, quinase do linfoma anaplásico), o estado de mutação do gene EGFR e a expressão de programmed death-ligand 1 (PD-L1, ligante de morte celular programada 1). Métodos: Avaliamos 173 espécimes provenientes de pacientes com adenocarcinoma pulmonar no Nordeste brasileiro. A expressão de PD-L1 e ALK foi avaliada por meio de imuno-histoquímica, ao passo que o estado de mutação do EGFR foi avaliado por meio de sequenciamento. Os subtipos histológicos foram classificados de acordo com a International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society. Resultados: Os subtipos histológicos mais comuns de adenocarcinoma pulmonar foram o predominantemente sólido (em 46,8%), o predominantemente acinar (em 37,0%) e o predominantemente lepídico (em 9,8%). A expressão de ALK foi detectada em 10,4% das amostras, e 22,0% dos tumores apresentavam mutações do gene EGFR. As mutações mais comuns do EGFR foram a mutação pontual L858R no éxon 21 (em 45,5%) e a deleção do éxon 19 (em 36,3%). O tumor proportion score relativo à expressão de PD-L1 foi ≥ 50% em 18,2% das amostras, = 1-49% em 32,7% e = 0% em 49,5%. O subtipo predominantemente sólido relacionou-se significativamente com EGFR selvagem (p = 0,047). A expressão positiva de PD-L1 não se relacionou significativamente com a expressão de ALK ou o estado de mutação do EGFR. Conclusões: Nossos resultados sugerem que o perfil molecular do carcinoma pulmonar de células não pequenas no Nordeste brasileiro difere do de populações em outras regiões do país: a expressão positiva de ALK é maior que os demais biomarcadores. Mais estudos com informações clínicas e genéticas são necessários para confirmar essas diferenças, além de estudos que se concentrem em populações em diferentes áreas do país.

ABSTRACT Objective: To investigate the histological subtypes and mutational profiles of non-small cell lung cancer in Brazil, looking for correlations among histological subtypes, expression of anaplastic lymphoma kinase (ALK), EGFR mutation status, and programmed death-ligand 1 (PD-L1) expression. Methods: We evaluated 173 specimens obtained from patients with lung adenocarcinoma in northeastern Brazil. Expression of PD-L1 and ALK was evaluated by immunohistochemistry; EGFR mutation status was evaluated by sequencing. We categorized the histological subtypes in accordance with the International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society classification. Results: The most common histological subtypes of lung adenocarcinoma were solid predominant (in 46.8%), acinar predominant (in 37.0%), and lepidic predominant (in 9.8%). ALK expression was detected in 10.4% of the samples, and 22.0% of the tumors harbored EGFR mutations. The most common EGFR mutation was an exon 21 L858R point mutation (in 45.5%), followed by an exon 19 deletion (in 36.3%). The tumor proportion score for PD-L1 expression was ≥ 50% in 18.2% of the samples, 1-49% in 32.7%, and 0% in 49.5%. The solid predominant subtype was significantly associated with wild-type EGFR status (p = 0.047). Positivity for PD-L1 expression was not found to be significantly associated with ALK expression or EGFR mutation status. Conclusions: Our results suggest that the molecular profile of non-small cell lung cancer in northeastern Brazil differs from those of populations in other regions of the country, with ALK positivity being higher than the other biomarkers. Further studies including clinical and genetic information are required to confirm these differences, as well as studies focusing on populations living in different areas of the country.

https://doi.org/10.1590/1806-3713/e20180181 3191 downloads

High incidence of tuberculosis in patients treated for hepatitis C chronic infection
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de Oliveira Uehara, Silvia Naomi

; Emori, Christini Takemi

; Perez, Renata Mello

; Mendes-Correa, Maria Cassia Jacintho

; de Souza Paiva Ferreira, Adalgisa

; de Castro Amaral Feldner, Ana Cristina

; Silva, Antonio Eduardo Benedito

; Filho, Roberto José Carvalho

; de Souza e Silva, Ivonete Sandra

; Ferraz, Maria Lucia Cardoso Gomes

Brazilian Journal of Infectious Diseases

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apr 2016, Volume 20 N. 2 Pages 205 - 209

Abstract: En | Text: En | PDF: En

Abstract Brazil is one of the 22 countries that concentrates 80% of global tuberculosis cases concomitantly to a large number of hepatitis C carriers and some epidemiological risk scenarios are coincident for both diseases. We analyzed tuberculosis cases that occurred during α-interferon-based therapy for hepatitis C in reference centers in Brazil between 2001 and 2012 and reviewed their medical records. Eighteen tuberculosis cases were observed in patients submitted to hepatitis C α-interferon-based therapy. All patients were human immunodeficiency virus-negative. Nine patients (50%) had extra-pulmonary tuberculosis; 15 (83%) showed significant liver fibrosis. Hepatitis C treatment was discontinued in 12 patients (67%) due to tuberculosis reactivation and six (33%) had sustained virological response. The majority of patients had a favorable outcome but one died. Considering the evidences of α-IFN interference over the containment of Mycobacterium tuberculosis, the immune impairment of cirrhotic patients, the increase of tuberculosis case reports during hepatitis C treatment with atypical and severe presentations and the negative impact on sustained virological response, we think these are strong arguments for latent tuberculosis infection screening before starting α-interferon-based therapy for any indication and even to consider IFN-free regimens against hepatitis C when a patient tests positive for latent tuberculosis infection.

https://doi.org/10.1016/j.bjid.2015.12.003 2081 downloads

Brazilian society of hepatology recommendations for the diagnosis and management of autoimmune diseases of the liver
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Bittencourt, Paulo Lisboa

; Cançado, Eduardo Luiz Rachid

; Couto, Cláudia Alves

; Levy, Cynthia

; Porta, Gilda

; Silva, Antônio Eduardo Benedito

; Terrabuio, Debora Raquel Benedita

; Carvalho Filho, Roberto José de

; Chaves, Dalton Marques

; Miura, Irene Kazue

; Codes, Liana

; Faria, Luciana Costa

; Evangelista, Andreia Silva

; Farias, Alberto Queiroz

; Gonçalves, Luciana Lofêgo

; Harriz, Michele

; Lopes Neto, Edmundo Pessoa A

; Luz, Gustavo Oliveira

; Oliveira, Patrícia

; Oliveira, Elze Maria Gomes de

; Schiavon, Janaina Luz Narciso

; Seva-Pereira, Tiago

; Parise, Edison Roberto

Arquivos de Gastroenterologia

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dec 2015, Volume 52 Suppl. 1 Pages 15 - 46

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Para definir as recomendações baseadas em evidências científicas sobre o diagnóstico e tratamento das doenças autoimnus do fígado, a Sociedade Brasileira de Hepatologia organizou em Outubro de 2014, encontro monotemático em São Paulo. Um Comitê organizador de sete investigadores foi selecionado pela Diretoria da Sociedade para organizar a agenda científica, assim como para selecionar vinte debatedores para fazer uma revisão sistemática e apresentar tópicos relacionados à hepatite autoimune, colangite esclerosante primária, cirrose biliar primária e suas síndromes de superposição (overlap). O texto inicial do submetidoo a apreciação e aprovação da Sociedade Brasileira de Hepatologia através de consulta a todos associados através da home page da Sociedade, O trabalho apresentado representa a versão final do trabalho original, devidamente revisado e organizado em tópicos, segundo as recomendações da Sociedade Brasileira de Hepatologia.

ABSTRACT In order to draw evidence-based recommendations concerning the management of autoimmune diseases of the liver, the Brazilian Society of Hepatology has sponsored a single-topic meeting in October 18th, 2014 at São Paulo. An organizing committee comprised of seven investigators was previously elected by the Governing Board to organize the scientific agenda as well as to select twenty panelists to make a systematic review of the literature and to present topics related to the diagnosis and treatment of autoimmune hepatitis, primary sclerosing cholangitis, primary biliary cirrhosis and their overlap syndromes. After the meeting, all panelists gathered together for the discussion of the topics and the elaboration of those recommendations. The text was subsequently submitted for suggestions and approval of all members of the Brazilian Society of Hepatology through its homepage. The present paper is the final version of the reviewed manuscript organized in topics, followed by the recommendations of the Brazilian Society of Hepatology.

https://doi.org/10.1590/s0004-28032015000500002 8104 downloads

ASSOCIATION OF THE NUTRITIONAL PROFILE WITH HISTOLOGICAL FINDINGS OF PATIENTS WITH GENOTYPE 1 CHRONIC HEPATITIS C INFECTION
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SILVA, Vanessa Aparecida de SANTIS E

; FERRAZ, Maria Lucia G

; CARVALHO-FILHO, Roberto de

; LANZONI, Valeria Pereira

; SILVA, Antonio Eduardo Benedito

; SILVA, Ivonete S S

Arquivos de Gastroenterologia

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dec 2015, Volume 52 N. 4 Pages 315 - 320

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Contexto - Diferentes fatores são responsáveis pela progressão da fibrose na infecção crônica pelo vírus da hepatite C, mas o papel dos fatores nutricionais na progressão da doença não está definido. Este estudo teve como objetivo avaliar o estado nutricional e o perfil dietético de pacientes com hepatite C crônica candidatos a tratamento e sua associação com achados histopatológicos. Métodos - Foi conduzido um estudo transversal em pacientes com hepatite C crônica genótipo 1 virgens de tratamento, entre 2011 e 2013. Foram analisados, antes do tratamento, os seguintes aspectos: biópsia hepática, medidas antropométricas e análise qualitativa e quantitativa do consumo alimentar. Resultados - Setenta pacientes foram estudados. A maioria dos pacientes apresentava obesidade (34%) ou sobrepeso (20%) de acordo com índice de massa corporal e risco para doenças cardiovasculares de acordo com a circunferência da cintura elevada (79%). Na análise qualitativa do consumo alimentar, 59% apresentavam uma dieta inadequada. Conforme análise quantitativa, 59% tinham consumo insuficiente de calorias, 36% consumo excessivo de proteínas e 63% consumo excessivo de gorduras saturadas. Com relação à histologia, 68% apresentavam grau de atividade inflamatória ≥2, 65% mostraram esteatose hepática e 25% possuíam grau de fibrose >2. Na análise comparativa entre as medidas antropométricas e achados histológicos, somente a circunferência da cintura elevada mostrou associação com esteatose hepática ( P =0,05). Não houve associação entre consumo alimentar qualitativo e quantitativo com parâmetros histológicos. Conclusão - A maioria dos pacientes apresentava consumo alimentar inadequado de acordo com parâmetros qualitativos e consumo excessivo de gordura saturada, além de excesso de gordura abdominal, que esteve associada à esteatose hepática. Portanto, aconselhamento nutricional deveria ser implementado em pacientes candidatos a tratamento para hepatite C crônica visando evitar distúrbios nutricionais que podem impactar negativamente no manejo dos pacientes.

Background - Different factors are responsible for the progression of hepatic fibrosis in chronic infection with hepatitis C virus, but the role of nutritional factors in the progression of the disease is not clearly defined. This study aimed to evaluate the nutritional status and dietary profile among patients with chronic hepatitis C who were candidates for treatment and its association with histopathological features. Methods - A crossectional study was conducted on treatment-naïve patients with chronic hepatitis C genotype 1, between 2011 and 2013. The following assessments were performed before treatment: liver biopsy, anthropometric measurements and qualitative/quantitative analysis of food intake. Results - Seventy patients were studied. The majority of patients was classified as obese (34%) or overweight (20%) according to body mass index [BMI] and as at risk for cardiovascular diseases by waist circumference (79%). Unhealthy food intake was presented by 59% according to qualitative parameters and several patients showed an insufficient intake of calories (59%), excessive intake of protein (36%) and of saturated fat (63%), according to quantitative analysis. With respect to histology, 68% presented activity grade ≥2, 65% had steatosis and 25% exhibited fibrosis stage >2. Comparative analysis between anthropometric parameters and histological features showed that elevated waist circumference was the only variable associated to hepatic steatosis ( P =0.05). There was no association between qualitative and quantitative food intake parameters with histological findings. Conclusion - In this study, most of the patients with hepatitis C presented inadequate qualitative food intake and excessive consumption of saturated fat; in addition, excess of abdominal fat was associated to hepatic steatosis. Therefore, nutritional guidance should be implemented prior to treatment in patients with chronic hepatitis C, in order to avoid nutritional disorders and negative impact on the management of patients.

https://doi.org/10.1590/S0004-28032015000400012 2732 downloads

Hepatitis B virus reactivation after treatment for hepatitis C in hemodialysis patients with HBV/HCV coinfection
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Wahle, Raul Carlos

; Perez, Renata Mello

; Pereira, Patrícia Fucuta

; Oliveira, Elze Maria Gomes

; Emori, Christini Takemi

; Uehara, Silvia Naomi de Oliveira

; Silva, Ivonete Sandra de Souza

; Silva, Antônio Eduardo Benedito

; Ferraz, Maria Lucia Gomes

Brazilian Journal of Infectious Diseases

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oct 2015, Volume 19 N. 5 Pages 533 - 537

Abstract: En | Text: En | PDF: En

ABSTRACTIn coinfected HBV/HCV patients, HBV replication is usually suppressed by HCV over the time. No study to date has evaluated the HBV viremia in long-term follow-up after HCV treatment in hemodialysis patients with HBV/HCV coinfection. This study aimed to assess the evolution of HBV viremia after HCV treatment in this special population. Ten hemodialysis patients with HBV/HCV coinfection with dominant HCV infection (HBV lower than 2000 IU/mL) and significant fibrosis were treated with interferon-alpha 3 MU 3×/week for 12 months and could be followed for at least 36 months after HCV treatment. Six cases of HBV reactivation (60%) during follow-up were observed and 5/6 had been successfully treated for HCV. Patients with HBV reactivation received anti-HBV therapy. Our preliminary findings indicate that treatment of hepatitis C in HBV/HCV coinfected hemodialysis patients may favor HBV reactivation. Thus, continued monitoring of HBV viremia must be recommended and prompt anti-HBV therapy should be implemented.

https://doi.org/10.1016/j.bjid.2015.04.003 1155 downloads

Clinical and epidemiological profile of female blood donors with positive serology for viral hepatitis B
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Narciso-Schiavon, Janaína Luz

; Schiavon, Leonardo de Lucca

; Carvalho-Filho, Roberto José de

; Emori, Christine Takemi

; Maryia, Fernando Akio

; Bordin, José Orlando

; Silva, Antonio Eduardo Benedito

; Ferraz, Maria Lucia Gomes

Revista da Sociedade Brasileira de Medicina Tropical

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oct 2015, Volume 48 N. 5 Pages 524 - 531

Abstract: En | Text: En | PDF: En

ABSTRACTINTRODUCTION:Since women are frequently the minority among blood donors worldwide, studies evaluating this population usually reflect male features. We assessed the features of female blood donors with positive serology for HBV and compared them with those of men.METHODS The study comprised consecutive blood donors referred to a specialized liver disease center to be evaluated due to HBsAg- and/or anti-HBc-positive tests.RESULTS: The study encompassed 1,273 individuals, 219 (17.2%) of whom were referred due to positive HBsAg test and 1,054 (82.8%) due to reactive anti-HBc test. Subjects' mean age was 36.8±10.9 years, and 28.7% were women. Female blood donors referred for positive HBsAg screening tests demonstrated higher prevalence of healthcare workers (9.3% vs 2.5%) and lower prevalence of sexual risk behaviors (15.1% vs 41.1%) and alcohol abuse (1.9% vs 19.8%) compared to men. Women had lower ALT (0.6 vs 0.8×ULN), AST (0.6 vs 0.8×ULN), direct bilirubin (0.2 vs 0.3mg/dL), and alkaline phosphatase (0.5 vs 0.6×ULN) levels and higher platelet count (223,380±50,293 vs 195,020±53,060/mm3). Women also had a higher prevalence of false-positive results (29.6% vs 17.0%). No differences were observed with respect to liver biopsies. Female blood donors referenced for reactive anti-HBc screening tests presented similar clinical, epidemiological, and biochemical characteristics to those reported for positive HBsAg screening tests and similarly had a higher prevalence of false-reactive results.CONCLUSIONS: Compared to men, female blood donors with positive HBsAg and/or anti-HBc screening tests demonstrated higher prevalence of professional risk and false-positive results and reduced alteration of liver chemistry.

https://doi.org/10.1590/0037-8682-0157-2015 2600 downloads

10.

Acute exacerbation of chronic hepatitis B virus infection in renal transplant patients
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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

Brazilian Journal of Infectious Diseases

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dec 2014, Volume 18 N. 6 Pages 625 - 630

Abstract: En | Text: En | PDF: En

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, immunosuppressive therapy, and use of antiviral prophylaxis.Results:140 HBV-infected renal transplant patients were included (71% males; age 46 ±10 years; post-renal transplant time 8 ±5 years). During follow-up, 25% (35/140) of the patients presented exacerbation within 3.4 ±3 years after renal transplant. Viral replication was observed in all patients with exacerbation. Clinical and/or laboratory signs of hepatic insufficiency were present in 17% (6/35) of the patients. Three patients died as a consequence of liver failure. In univariate analysis variables associated with exacerbation were less frequent use of prophylactic/preemptive lamivudine and of mycophenolate mofetil. Lamivudine use was the only variable independently associated with exacerbation, with a protective effect.Conclusions:Acute exacerbation was a frequent and severe event in HBV-infected renal transplant patients. Prophylactic/preemptive therapy with antiviral drugs should be indicated for all HBsAg-positive renal transplant patients.

https://doi.org/10.1016/j.bjid.2014.06.004 1214 downloads

11.

Do differences exist between chronic hepatitis C genotypes 2 and 3?
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Melo, Isaura Cunha

; Ferraz, Maria Lucia Gomes

; Perez, Renata Mello

; Emori, Christine Takemi

; Uehara, Silvia Naomi de Oliveira

; Carvalho-Filho, Roberto José de

; Silva, Antonio Eduardo Benedito

; Souza e Silva, Ivonete Sandra de

Revista da Sociedade Brasileira de Medicina Tropical

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apr 2014, Volume 47 N. 2 Pages 143 - 148

Abstract: En | Text: En | PDF: En

Introduction Six genotypes of the hepatitis C virus (HCV) have been identified thus far, and their distribution is well defined. Genotype 1, which is the most prevalent worldwide, is always compared to genotypes 2 and 3, particularly in terms of treatment response. However, little is known about the differences between genotypes 2 and 3 because these genotypes are analyzed together in most studies. Therefore, the aim of this study was to evaluate differences in the clinical, epidemiological, laboratory, and histological parameters between HCV-2 and HCV-3. Methods Patients with chronic hepatitis C infected with genotypes 2 and 3 were studied retrospectively and compared according to clinical, laboratory, and histological aspects. Hepatitis C virus-ribonucleic acid (HCV-RNA) was analyzed quantitatively by TaqMan® real-time PCR, and the HCV genotype was determined by sequencing the 5′-untranslated region. Results A total of 306 patients with chronic HCV-2 (n=50) and HCV-3 (n = 256) were studied. Subtype 2b (n=17/50) and subtype 3a (n=244/256) were the most prevalent among patients infected with HCV-2 and HCV-3, respectively. The mean age was 47 ± 10 years, and there was a predominance of men in the group studied (61%). Comparative analysis between HCV-2 and HCV-3 showed a younger age (p=0.002), less prevalence of arterial hypertension (p=0.03), higher serum albumin levels (p=0.01), more advanced stage of liver fibrosis (p=0.03), and higher frequency of steatosis in patients with HCV-3 (p=0.001). After multivariate regression analysis, all the variables, except serum albumin, remained as variables associated with HCV-3 in the final model. Conclusions Clinical and histological differences exist between HCV-2 and HVC-3, which suggests the need for separate analyses of these genotypes.

https://doi.org/10.1590/0037-8682-0269-2013 2302 downloads

12.

Liver fibrosis progression in HIV/hepatitis C virus coinfected patients with normal aminotransferases levels
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Pace, Fábio Heleno de Lima

; Ferreira, Lincoln Eduardo Vieira de Castro

; Silva, Antonio Eduardo Benedito

; Ferraz, Maria Lucia Gomes

Revista da Sociedade Brasileira de Medicina Tropical

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aug 2012, Volume 45 N. 4 Pages 444 - 447

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

INTRODUÇÃO: Aproximadamente, 30% dos portadores de hepatite crônica C apresentam níveis de aminotransferases persistentemente normais (APNL). A maioria destes pacientes tem lenta progressão da fibrose hepática. Em portadores de coinfecção VHC-HIV, estudos têm demonstrado que a progressão da fibrose hepática é mais rápida que a observada em indivíduos infectados somente pelo VHC. Há poucos estudos que verificaram as características histológicas da hepatite crônica C em pacientes coinfectados pelo HIV APNL. MÉTODOS: Portadores de coinfecção VHC-HIV (HCV-RNA e anti-HIV positivos) com tempo de infecção pelo VHC conhecido (uso de drogas intravenosas) foram selecionados. Aqueles com hepatitis B surface antigen (HbsAg) positivo ou que tenham sido submetidos à terapia antiviral para hepatite C antes da biópsia hepática foram excluídos. Pacientes com pelo menos 3 determinações normais da ALT nos últimos 6 meses antes da biópsia hepática foram considerados como tendo APNL. Todos foram submetidos a biópsia hepática que foi classificada de acordo com a escala METAVIR. RESULTADOS: Foram incluídos 50 pacientes, 40 (80%) homens. Todos receberam terapia antirretroviral. Os níveis de ALT foram persistentemente normais em 13 (26%) pacientes. Pacientes coinfectados com APNL apresentaram menor média dos estágiosde fibrose hepática (0,77±0,44 versus 1,86±1,38; p<0,001), dos índices de atividade inflamatória periportal (0,62±0,77 versus 2,24±1,35; p<0,001) e progressão mais lenta da fibrose hepática (0,058±0,043 unidades de fibrose /ano versus 0,118±0,102 unidades de fibrose/ano) quando comparados àqueles com aminotransferases elevadas. CONCLUSÕES: Portadores de coinfecção VHC-HIV com APNL apresentam progressão mais lenta da fibrose hepática. Nesses pacientes o desenvolvimento de cirrose hepática é improvável.

INTRODUCTION: Approximately 30% of hepatitis C virus (HCV) monoinfected patients present persistently normal alanine aminotransferase (ALT) levels. Most of these patients have a slow progression of liver fibrosis. Studies have demonstrated the rate of liver fibrosis progression in hepatitis C virus-human immunodeficiency virus (HCV-HIV) coinfected patients is faster than in patients infected only by HCV. Few studies have evaluated the histological features of chronic hepatitis C in HIV-infected patients with normal ALT levels. METHODS: HCV-HIV coinfected patients (HCV-RNA and anti-HIV positive) with known time of HCV infection (intravenous drugs users) were selected. Patients with hepatitis B surface antigen (HBsAg) positive or hepatitis C treatment before liver biopsy were excluded. Patients were considered to have a normal ALT levels if they had at least 3 normal determinations in the previous 6 months prior to liver biopsy. All patients were submitted to liver biopsy and METAVIR scale was used. RESULTS: Of 50 studied patients 40 (80%) were males. All patients were treated with antiretroviral therapy. The ALT levels were normal in 13 (26%) patients. HCV-HIV co-infected patients with normal ALT levels had presented means of the liver fibrosis stages (0.77±0.44 versus 1.86±1.38; p<0.001) periportal inflammatory activity (0.62±0.77 versus 2.24±1.35; p<0.001) and liver fibrosis progression rate (0.058±0.043 fibrosis unit/year versus 0.118±0.102 fibrosis unit/year) significantly lower as compared to those with elevated ALT. CONCLUSIONS: HCV-HIV coinfected patients with persistently normal ALTs showed slower progression of liver fibrosis. In these patients the development of liver cirrhosis is improbable.

3214 downloads

13.

Clinical characteristics associated with hepatic steatosis on ultrasonography in patients with elevated alanine aminotransferase
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Narciso-Schiavon, Janaína Luz

; Schiavon, Leonardo de Lucca

; Carvalho-Filho, Roberto José de

; Hayashida, Débora Yumi

; Wang, Jenny Hue Jiuan

; Souza, Tatiana Santana

; Emori, Christini Takemi

; Ferraz, Maria Lucia Gomes

; Silva, Antonio Eduardo Benedito

Sao Paulo Medical Journal

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dec 2010, Volume 128 N. 6 Pages 342 - 347

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

CONTEXTO E OBJETIVO: Doença hepática alcoólica e doença hepática esteatótica não alcoólica (DHENA) são as principais causas de esteatose hepática (EH). Apesar de a biópsia hepática ser o método de escolha para diagnóstico DHENA, o achado de aminotransferases elevadas em indivíduos abstêmios, sem doença hepática conhecida, sugere o diagnóstico de DHENA em 80-90% dos casos. A identificação de variáveis clínicas associadas à EH na ultrassonografia abdominal pode permitir o diagnóstico de DHENA de forma não invasiva e custo-efetiva. O objetivo foi identificar variáveis clínicas associadas à EH em indivíduos com níveis elevados de alanina aminotransferase (ALT). TIPO DE ESTUDO E LOCAL: Estudo transversal em um único centro de atendimento terciário. MÉTODOS: Indivíduos com ALT elevada e sorologias negativas para os vírus de hepatite B e C foram avaliados por meio de revisão de prontuários. Os pacientes não submetidos à ultrassonografia foram excluídos. RESULTADOS: Foram incluídos 94 indivíduos, 40% deles com EH à ultrassonografia. Quando comparados aos indivíduos sem EH, aqueles com EH apresentaram maior prevalência de diabetes (P = 0,024), maiores idade (P = 0,043) e índice de massa corpórea (IMC) (P = 0,003), glicemia de jejum mais elevada (P = 0,001) e triglicerídeos mais elevados (P = 0,003). A análise multivariada evidenciou que o IMC (odds ratio, OR = 1,186, 95% intervalo de confiança, IC 1,049-1,341, P = 0,006) e o diabetes mellitus (OR = 12,721, 95% IC 1,380-117,247, P = 0,025) foram associadas independentemente à EH. CONCLUSÕES: Achados clínicos simples como história de diabetes e o IMC elevado podem predizer a presença de EH à ultrassonografia de indivíduos com ALT elevada e sorologias negativas para hepatite.

CONTEXT AND OBJECTIVE: The main causes of hepatic steatosis (HS) are alcoholic liver disease and nonalcoholic fatty liver disease (NAFLD). Although liver biopsy is the gold standard for NAFLD diagnosis, the finding of abnormal aminotransferases in abstinent individuals, without known liver disease, suggests the diagnosis of NAFLD in 80-90% of the cases. Identification of clinical factors associated with HS on abdominal ultrasound may enable diagnoses of fatty liver non-invasively and cost-effectively. The aim here was to identify clinical variables associated with HS in individuals with elevated alanine aminotransferase (ALT) levels. DESIGN AND SETTING: Cross-sectional study in a single tertiary care center. METHODS: Individuals with elevated ALT, serologically negative for hepatitis B and C, were evaluated by reviewing medical files. Patients who did not undergo abdominal ultrasonography were excluded. RESULTS: Among 94 individuals included, 40% presented HS on ultrasonography. Compared with individuals without HS, those with fatty liver were older (P = 0.043), with higher body mass index (BMI) (P = 0.003), diabetes prevalence (P = 0.024), fasting glucose levels (P = 0.001) and triglycerides (P = 0.003). Multivariate analysis showed that BMI (odds ratio, OR = 1.186; 95% confidence interval, CI: 1.049-1.341; P = 0.006) and diabetes mellitus (OR = 12.721; 95% CI: 1.380-117.247; P = 0.025) were independently associated with HS. CONCLUSIONS: Simple clinical findings such as history of diabetes and high BMI may predict the presence of HS on ultrasonography in individuals with elevated ALT and negative serological tests for hepatitis.

4232 downloads

14.

Gender influence on treatment of chronic hepatitis C genotype 1
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Narciso-Schiavon, Janaína Luz

; Schiavon, Leonardo de Lucca

; Carvalho-Filho, Roberto José

; Sampaio, Juliana Peghini

; Batah, Philipe Nicolas El

; Barbosa, Denize Vieira

; Ferraz, Maria Lucia Gomes

; Silva, Antonio Eduardo Benedito

Revista da Sociedade Brasileira de Medicina Tropical

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jun 2010, Volume 43 N. 3 Pages 217 - 223

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

INTRODUÇÃO: Apesar dos vários estudos publicados a respeito do tratamento da hepatite C crônica (CHC) com Peg-Interferon (Peg-IFN) e ribavirina, se desconhece o real impacto do gênero sobre as características que influenciam a eficácia e a segurança da terapia antiviral em portadores de CHC. O objetivo deste estudo foi avaliar a influência do gênero no tratamento da CHC. MÉTODOS: Foi realizado um estudo analítico retrospectivo de portadores de CHC genótipo 1 tratados com Peg-IFN α-2b na dose de 1,5μg/kg ou Peg-IFN α-2a na dose de180μg/sem associado à ribavirina 1.000-1.250 mg/dia, de acordo com o peso, entre 2001 e 2007. RESULTADOS: Entre 181 pacientes submetidos ao tratamento, a média de idade foi de 46,4±11,0 anos e 46% eram mulheres. No pré-tratamento, 32% dos pacientes apresentavam fibrose avançada (F3-F4 Scheuer), e 83% dos indivíduos apresentavam carga viral >400.000IU/mL, sem diferença significativa entre os gêneros (p=0,428 e p=0,452, respectivamente). Quando comparadas aos homens, as mulheres exibiram maior incidência de eventos adversos como anemia (p<0,001) e maior necessidade de redução de dose tanto do Peg-IFN (p=0,004) quanto da ribavirina (p=0,006). Entretanto, as taxas de resposta virológica sustentada (RVS) não diferiram entre os gêneros (45% (mulheres) . vs 41% (homens); p=0,464). CONCLUSÕES: Este estudo sugere que homens e mulheres reagem à terapia combinada de forma diferente, especialmente com relação aos eventos adversos e à necessidade de modificação de dose. No entanto, essas diferenças não influenciam as taxas de RVS.

INTRODUCTION: Although various studies have been published regarding the treatment of chronic hepatitis C (CHC) with peginterferon (Peg-IFN) and ribavirin, little is known regarding the real impact of gender on the characteristics that influence the effectiveness and safety of antiviral treatment for CHC patients. The objective of this study was to evaluate the influence of gender on HCV treatment outcomes. METHODS: A retrospective analytical study was conducted among selected carriers of CHC genotype 1, who were treated with Peg-IFN α-2b at a dose of 1.5 μg/kg or Peg-IFN α-2a at a dose of 180 μg/week plus a ribavirin dose of 1,000-1,250 mg/day, according to weight, between 2001 and 2007. RESULTS: Among 181 patients undergoing treatment, the mean age was 46.4 ± 11.0 years and 46% were women. At baseline, 32% of the patients had advanced fibrosis (F3-F4 Scheuer), and 83% of the subjects had viral load > 400,000 IU/ml, without significant difference between the genders (p = 0.428 and p = 0.452, respectively). When compared with men, women had higher incidence of many adverse events such as anemia (p < 0.001) and higher need for dose reduction, for both Peg-IFN (p = 0.004) and ribavirin (p = 0.006). However, the rate of sustained virological response (SVR) did not differ between the genders: 45% (female) vs 41% (male); p=0.464. CONCLUSIONS: This study suggests that women and men react differently to combined therapy, especially in relation to the incidence of adverse events and the need for dose modification. Nevertheless, these differences do not influence the SVR rate.

4099 downloads Cited 4 times in SciELO

15.

Classification of journals in the QUALIS System of CAPES URGENT need of changing the criteria!
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Andriolo, Adagmar

; Souza, Aécio Flávio Meireles

; Farias, Alberto Queiroz

; Barbosa, Alfredo José Afonso

; França Netto, Antonio Spina

; Hernandez, Arnaldo José

; Camargos, Aroldo F.

; Barraviera, Benedito

; Kadunc, Bogdana Victoria

; Caramelli, Bruno

; Campos, Carlos Eduardo Aguilera

; Brites, Carlos

; Nascimento, Dejair Caitano do

; Braile, Domingo M.

; Goldenberg, Dov Charles

; Baracat, Edmund Chada

; Kimura, Edna T.

; Marchiori, Edson

; Vieira, Eduardo de Paula

; Almeida, Eros Antônio de

; Jotz, Geraldo Pereira

; Camanho, Gilberto

; Friedman, Gilberto

; Cerri, Giovanni Guido

; Duarte, Ivomar Gomes

; Costa, Izelda Maria Carvalho

; Mello Júnior, João Ferreira de

; Faintuch, Joel

; Martinez, José Antônio Baddini

; Antonio Livramento, José

; Manso, José Eduardo Ferreira

; Amaral, José Luiz Gomes do

; Battistella, Linamara Rizzo

; Machado, Luís dos Ramos

; Moreira, Luiz Felipe P.

; Gebrim, Luiz Henrique

; Madeira, Marcelo

; Riberto, Marcelo

; Bastos, Marcus

; Falcão, Mário Cícero

; Conceição, Mario J. da

; Silva, Mauricio Rocha e

; Ruiz, Milton Artur

; Shibata, Milton K.

; Santiago, Mittermayer Barreto

; Andreollo, Nelson Adami

; Malafaia, Osvaldo

; Martins, Regina Helena Garcia

; Procianoy, Renato Soibelmann

; Baroudi, Ricardo

; Fuller, Ricardo

; Viebig, Ricardo Guilherme

; Nitrini, Ricardo

; Moura, Rita Cristina Mainieri R. de

; Dedivitis, Rogério

; Damião, Ronaldo

; Lianza, Sergio

; Rode, Sigmar de Mello

; Yoshida, Winston Bonetti

; Handar, Zuher

Arquivos de Neuro-Psiquiatria

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apr 2010, Volume 68 N. 2 Pages 327 - 329

Abstract: En | Text: En | PDF: En

3236 downloads Cited 9 times in SciELO

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