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101. No evidence of SARS-CoV-2 infection in Neotropical Primates sampled during COVID-19 pandemic in Minas Gerais and Rio Grande do Sul, Brazil

Author

Abreu, Filipe Vieira Santos de, primary, Macedo, Mariana Viana, additional, Silva, Alex Junio Jardim da, additional, Oliveira, Cirilo Henrique de, additional, Ottone, Vinícius de Oliveira, additional, Almeida, Marco Antônio Barreto de, additional, Santos, Edmilson dos, additional, Cardoso, Jader da Cruz, additional, Campos, Aline Scarpellini, additional, Silva, Claudia Maria Dornelles da, additional, Silva, Amanda Gonzales da, additional, Andrade, Miguel de Souza, additional, Bernis, Valéria Magro Octaviano, additional, Bernis Filho, Walter Octaviano, additional, Trindade, Giliane de Souza, additional, Albuquerque, George Rego, additional, Sevá, Anaiá da Paixão, additional, Ribeiro, Bergmann Morais, additional, Teixeira, Danilo Simonini, additional, Campos, Fabrício Souza, additional, Franco, Ana Cláudia, additional, Roehe, Paulo Michel, additional, and Oliveira, Danilo Bretas de, additional

Published
2021
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103. Pocket Rehab – programa de reabilitação baseado em mHealth para pacientes com doença cardiovascular como estratégia de prevenção e tratamento às vítimas do COVID-19 : um estudo colaborativo multicêntrico internacional

Author

Cipriano Júnior, Gerson, Cahalin, Lawrence P., Hansen, Dominique, Meira, Augusto, Kaway, Fernando, State, Radu, Durigan, João Luiz Quagliotti, Martins, Wagner Rodrigues, Nóbrega, Otávio de Tolêdo, Ribeiro, Bergmann Morais, Chiappa, Gaspar Rogério, Cipriano, Graziella França Bernardelli, Lima, Alexandra Corrêa Gervazoni Balbuena de, and Souza, Fausto Stauffer Junqueira de

Subjects
Tolerância ao exercício, Insuficiência cardíaca, Estudo multicêntrico, Telerreabilitação, Infecções por coronavírus, Reabilitação cardiaca
Abstract

Pacientes com doença cardiovascular e fatores de risco para doença cardiovascular (DCV) têm sido afetados com mais frequência e mais gravemente pelo novo coronavírus. Isso agravou o cenário anterior de subutilização dos programas de reabilitação cardiovascular (RCV) antes da pandemia, exigindo alternativas otimizadas de RCV, como por exemplo aquelas baseadas em aplicativos móveis (mHeath), não apenas por gerar benefícios bem estabelecidos, mas agora também para manter esses pacientes clinicamente estáveis, diminuindo a chance de eventos cardiovasculares e risco de contaminação naqueles não infectados pelo vírus, bem como tratando dos sobreviventes da COVID-19, tendo em vista as disfunções adicionais que tem sido descritas nos sistemas respiratório, cardiovascular e muscular. Serão realizados dois estudos: o estudo 1, qualitativo, de concordância e reprodutibilidade. Criação aplicativo baseado em tecnologia móvel (mHealth), para dar suporte a um programa otimizado (capaz de avaliar após COVID-19) de reabilitação cardiovascular (RCV) em ambiente domiciliar, desenvolvido pela Universidade do Luxemburgo (Centro 4), integrando instrumentos reconhecidos internacionalmente, como o EXPERT Tool, Hasselt University (Centro 3) e PACERProject, University of Miami (Centro 2). O aplicativo será testado e avaliado por profissionais de saúde nos dois centros colaboradores do estudo (Centro 2 e Centro 3) e na instituição executora - Universidade de Brasília (Centro 1).

Published
2020

117. Functional and structural characterisation of Ag MNPV ie1

Author

Bilen, Marcos Fabián, Pilloff, Marcela Gabriela, Belaich, Mariano Nicolás, Da Ros, Vanina Gabriela, Rodrigues, Julio Carlyle, Ribeiro, Bergmann Morais, Romanowski, Víctor, Lozano, Mario Enrique, and Ghiringhelli, Pablo Daniel

Published
2007

121. Novel Viruses in Mosquitoes from Brazilian Pantanal

Author

Maia, Laura Marina Siqueira, primary, Pinto, Andressa Zelenski de Lara, additional, Carvalho, Michellen Santos de, additional, Melo, Fernando Lucas de, additional, Ribeiro, Bergmann Morais, additional, and Slhessarenko, Renata Dezengrini, additional

Published
2019
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122. Faecal Virome Analysis of Wild Animals from Brazil

Author

A. Duarte, Matheus, primary, F. Silva, João M., additional, R. Brito, Clara, additional, S. Teixeira, Danilo, additional, L. Melo, Fernando, additional, M. Ribeiro, Bergmann, additional, Nagata, Tatsuya, additional, and S. Campos, Fabrício, additional

Published
2019
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123. Prolonged mosquitocidal activity of Siparuna guianensis essential oil encapsulated in chitosan nanoparticles

Author

P. Ferreira, Taciano, primary, Haddi, Khalid, additional, F. T. Corrêa, Roberto, additional, Zapata, Viviana L. B., additional, Piau, Tathyana B., additional, Souza, Luis F. N., additional, Santos, Swel-Marks G., additional, Oliveira, Eugenio E., additional, Jumbo, Luis O. V., additional, Ribeiro, Bergmann M., additional, Grisolia, Cesar K., additional, Fidelis, Rodrigo R., additional, Maia, Ana M. S., additional, and S. Aguiar, Raimundo W., additional

Published
2019
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126. Yellow fever virus envelope protein expressed in insect cells is capable of syncytium formation in lepidopteran cells and could be used for immunodetection of YFV in human sera

Author

Nagata Tatsuya, Degallier Nicolas, Chaib Antônio JM, Galasso Tatiane GCM, Barros Maria CES, and Ribeiro Bergmann M

Subjects
Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background Yellow fever is an haemorrhagic disease caused by a virus that belongs to the genus Flavivirus (Flaviviridae family) and is transmitted by mosquitoes. Among the viral proteins, the envelope protein (E) is the most studied one, due to its high antigenic potencial. Baculovirus are one of the most popular and efficient eukaryotic expression system. In this study a recombinant baculovirus (vSynYFE) containing the envelope gene (env) of the 17D vaccine strain of yellow fever virus was constructed and the recombinant protein antigenicity was tested. Results Insect cells infected with vSynYFE showed syncytium formation, which is a cytopathic effect characteristic of flavivirus infection and expressed a polypeptide of around 54 kDa, which corresponds to the expected size of the recombinant E protein. Furthermore, the recombinant E protein expression was also confirmed by fluorescence microscopy of vSynYFE-infected insect cells. Total vSynYFE-infected insect extracts used as antigens detected the presence of antibodies for yellow fever virus in human sera derived from yellow fever-infected patients in an immunoassay and did not cross react with sera from dengue virus-infected patients. Conclusions The E protein expressed by the recombinant baculovirus in insect cells is antigenically similar to the wild protein and it may be useful for different medical applications, from improved diagnosis of the disease to source of antigens for the development of a subunit vaccine.

Published
2011
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127. Expression of recombinant Araraquara Hantavirus nucleoprotein in insect cells and its use as an antigen for immunodetection compared to the same antigen expressed in Escherichia coli

Author

Wolff Jose LC, Figueiredo Luiz TM, Ribeiro Bergmann M, Moreli Marcos L, Machado Aline RSR, and Machado Alex M

Subjects
Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background Antigens for Hantavirus serological tests have been produced using DNA recombinant technology for more than twenty years. Several different strategies have been used for that purpose. All of them avoid the risks and difficulties involved in multiplying Hantavirus in the laboratory. In Brazil, the Araraquara virus is one of the main causes of Hantavirus Cardio-Pulmonary Syndrome (HCPS). Methods In this investigation, we report the expression of the N protein of the Araraquara Hantavirus in a Baculovirus Expression System, the use of this protein in IgM and IgG ELISA and comparison with the same antigen generated in E. coli. Results The protein obtained, and purified in a nickel column, was effectively recognized by antibodies from confirmed HCPS patients. Comparison of the baculovirus generated antigen with the N protein produced in E. coli showed that both were equally effective in terms of sensitivity and specificity. Conclusions Our results therefore indicate that either of these proteins can be used in serological tests in Brazil.

Published
2011
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128. Insecticidal activity of two proteases against Spodoptera frugiperda larvae infected with recombinant baculoviruses

Author

Nagata Tatsuya, Felix Carlos, Noronha Eliane, Sousa Raul, Perecmanis Simone, Gramkow Aline, and Ribeiro Bergmann

Subjects
Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background Baculovirus comprise the largest group of insect viruses most studied worldwide, mainly because they efficiently kill agricutural insect pests. In this study, two recombinant baculoviruses containing the ScathL gene from Sarcophaga peregrina (vSynScathL), and the Keratinase gene from the fungus Aspergillus fumigatus (vSynKerat), were constructed. and their insecticidal properties analysed against Spodoptera frugiperda larvae. Results Bioassays of third-instar and neonate S. frugiperda larvae with vSynScathL and vSynKerat showed a decrease in the time needed to kill the infected insects when compared to the wild type virus. We have also shown that both recombinants were able to increase phenoloxidase activity in the hemolymph of S. frugiperda larvae. The expression of proteases in infected larvae resulted in destruction of internal tissues late in infection, which could be the reason for the increased viral speed of kill. Conclusions Baculoviruses and their recombinant forms constitute viable alternatives to chemical insecticides. Recombinant baculoviruses containing protease genes can be added to the list of engineered baculoviruses with great potential to be used in integrated pest management programs.

Published
2010
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137. Tailed giant Tupanvirus possesses the most complete translational apparatus of the known virosphere

Author

Abrahão, Jônatas, primary, Silva, Lorena, additional, Silva, Ludmila Santos, additional, Khalil, Jacques Yaacoub Bou, additional, Rodrigues, Rodrigo, additional, Arantes, Thalita, additional, Assis, Felipe, additional, Boratto, Paulo, additional, Andrade, Miguel, additional, Kroon, Erna Geessien, additional, Ribeiro, Bergmann, additional, Bergier, Ivan, additional, Seligmann, Herve, additional, Ghigo, Eric, additional, Colson, Philippe, additional, Levasseur, Anthony, additional, Kroemer, Guido, additional, Raoult, Didier, additional, and La Scola, Bernard, additional

Published
2018
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144. Draft genome sequence of Bacillus thuringiensis 147, a Brazilian strain with high insecticidal activity

Author

Barbosa, Luiz Carlos Bertucci, Farias, Débora Lopes, Silva, Isabella de Moraes Guimarães, Melo, Fernando Lucas, Ribeiro, Bergmann Morais, and Aguiar, Raimundo Wagner de Souza

Subjects
biopesticides, genome sequence, Bacillus thuringiensis
Abstract

Bacillus thuringiensisis a ubiquitous Gram-positive and sporulating bacterium. Its crystals and secreted toxins are useful tools against larvae of diverse insect orders and, as a consequence, an alternative to recalcitrant chemical insecticides. We report here the draft genome sequence ofB. thuringiensis147, a strain isolated from Brazil and with high insecticidal activity. The assembled genome contained 6,167,994 bp and was distributed in seven replicons (a chromosome and 6 plasmids). We identified 12 coding regions, located in two plasmids, which encode insecticidal proteins.

Published
2015

145. Identification of potential new mosquito-associated viruses of adult Aedes aegyptimosquitoes from Tocantins state, Brazil

Author

Duarte, Matheus A., Campos, Fabrício S., Araújo Neto, Osvaldo F., Silva, Leonardo A., Silva, Arthur B., Aguiar, Thalita C., Santos, Raissa N., Souza, Ueric J. B., Alves, Giselly B., Melo, Fernando L., Ardisson-Araujo, Daniel M. P., Aguiar, Raimundo W. S., and Ribeiro, Bergmann M.

Abstract

Medically important arboviruses such as dengue virus (DENV), Zika virus (ZIKV), and chikungunya virus (CHIKV) are primarily transmitted by the globally distributed mosquito Aedes aegypti. Increasing evidence suggests that the transmission of some viruses can be influenced by mosquito-specific and mosquito-borne viruses. Advancements in high-throughput sequencing (HTS) and bioinformatics have expanded our knowledge on the richness of viruses harbored by mosquitoes. HTS was used to characterize the presence of virus sequences in wild-caught adult Ae.aegyptifrom Tocantins (TO) state, Brazil. Samples of mosquitoes were collected in four cities of Tocantins state and submitted to RNA isolation, followed by sequencing at an Illumina HiSeq platform. Our results showed initially by Krona the presence of 3% of the sequenced reads belonging to the viral database. After further analysis, the virus sequences were found to have homology to two viral families found in insects Phenuiviridaeand Metaviridae. Three possible viral strains including putative new viruses were detected and named Phasi Charoen-like phasivirus isolate To-1 (PCLV To-1), Aedesaegypti To virus 1 (AAToV1), and Aedesaegypti To virus 2 (AAToV2). The results presented in this work contribute to the growing knowledge about the diversity of viruses in mosquitoes and might be useful for future studies on the interaction between insect-specific viruses and arboviruses.

Published
2021
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149. A betabaculovirus encoding a gp64 homolog

Author

Ardisson-Araújo, Daniel M P., primary, Pereira, Bruna T., additional, Melo, Fernando L., additional, Ribeiro, Bergmann M., additional, Báo, Sônia N., additional, de A. Zanotto, Paolo M., additional, Moscardi, Flávio, additional, Kitajima, Elliot W., additional, Sosa-Gomez, Daniel R., additional, and Wolff, José L. C., additional

Published
2016
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