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Registros recuperados: 26 | |
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Vázquez-Flores,Felicitas; Alonso,Rogelio; Villegas-Sepúlveda,Nicolás; Arriaga,Camila; Pereira-Suárez,Ana Laura; Mancilla,Raúl; Estrada-Chávez,Ciro. |
Bovine tuberculosis, caused by Mycobacterium bovis, is a disease of socio-economic and public health importance and of significance to international trade regulation. Allelic variants of several genes have been implicated in the genetic susceptibility to tuberculosis in some human populations, but little is known in cattle. We surveyed 34 European, 18 Asian, 20 Creole and 23 hybrid bovines for polymorphisms of the bovine solute carrier family 11 a1(Slc11a1) gene, formerly known as natural resistance associated macrophage protein (Nramp1), gene by typing the cattle using two microsatellite loci closely linked to this gene. The microsatellites used were 311-22, located at the 3' untranslated region (3' UTR) of the Slc11a1 gene, and ARO28 situated about 0.6... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine lineages; Mycobacterium bovis; Microsatellite loci; Nramp1; Slc11a1; 3' UTR. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000300019 |
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Cavaleiro,J. S.; Trindade,B. C.; Balderramas,H. A.; Haanwinckel,M. C.; Pinto,J. G. G.; Oliveira,S. L.; Paes,A. C.. |
Mice genetically selected for high (H) and low (L) antibody production (Selection IV-A) were used as murine experimental model. The aim of the present work was to evaluate the macrophagic activity and to characterize the immune response in Mycobacterium bovis-AN5 infected mice (3X10(7) bacteria). The response profile previously observed in such strains was not similar to that obtained during M. bovis infection; however, it corroborated works carried out using Selection I, which is very similar to Selection IV-A regarding infection by M. tuberculosis and Bacillus Calmette-Guérin (BCG). Considering bacterial recovery, L IV-A mice showed higher control of the infectious process in the lungs than in the spleen, whereas H IV-A mice presented more resistance in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Immune response; Mycobacterium bovis; Biozzi mice. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000300006 |
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Batista, M. S.; Cerqueira, R. B.; Sousa, E. O.; Gonçalves, V. P.; Perez, A.; Ávila, L. N.. |
A tuberculose bovina (BTB) é uma enfermidade de caráter zoonótico, caracterizada pela formação de granulomas nodulares e apresenta importante impacto econômico e na saúde pública. Na Bahia, o estudo da prevalência e fatores de risco da tuberculose bovina (2008 a 2010), utilizando-se de métodos de tuberculinização para o diagnóstico definitivo, encontrou uma prevalência de rebanho de 1,6% (com intervalo de 0,3-2,9% a depender da região) e uma prevalência animal de 0,21% (com intervalo de 0,02-0,66%). Com a evolução do programa de controle da BTB e a redução da sua prevalência, a vigilância epidemiológica em matadouros frigoríficos assume papel importante para a identificação de focos a partir de lesões observadas durante a inspeção sanitária post-mortem de... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium bovis; Diagnóstico bacteriológico; Defesa sanitária animal. |
Ano: 2016 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/31941 |
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Almeida, M. F. F. A.; Navarro, D. S. F.. |
O Mycobacterium bovis, membro do complexo Mycobacterium tuberculosis, é o agente causal da tuberculose bovina (TB), doença infecciosa crônica de importância em saúde pública e responsável por significativas perdas econômicas na pecuária mundial. Tendo em vista o registro da baixa prevalência da TB no Estado de Mato Grosso e a necessidade da compreensão da epidemiologia da doença na região, o presente trabalho foi delineado para detectar e rastrear focos de TB a partir dos registros de animais que apresentaram lesões sugestivas da zoonose, por ocasião do seu abate em abatedouros com Serviço de Inspeção Oficial. Entre maio e setembro de 2015 foram processados pelo Laboratório de Apoio à Saúde Animal Anibal Molina – LASA 23 amostras, colhidas em bovinos... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculose; Mycobacterium bovis; Mato Grosso. |
Ano: 2016 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/32122 |
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Morés,N.; Amaral,A.L.; Ventura,L.; Silva,R.A.M.; Silva,V.S.; Barioni Junior,W.. |
Avaliou-se a eficiência do teste de tuberculina intradérmico comparado, para identificar rebanhos suínos infectados com o complexo Mycobacterium avium (MAC), seu poder de discriminação entre rebanhos infectados com MAC e Mycobacterium bovis, e para estudar diferentes critérios de leitura e interpretação. Foram realizados três experimentos com rebanhos infectados naturalmente com MAC, com suínos inoculados com MAC e com suínos inoculados com M. bovis. Os testes foram comparados com a presença ou não de lesões macro e/ou microscópicas nos linfonodos de suínos em idade de abate. Verificaram-se reações cruzadas entre os testes intradérmicos, tanto com animais infectados com o MAC como com M. bovis. Reações acima de 0,5cm de diâmetro ou acima de 0,20cm no... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Suínos; Tuberculina; Mycobacterium avium; Mycobacterium bovis. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000500002 |
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Alzamora Filho,F.; Reis,V.M.; Fehlberg,I.; Alcântara,A.C. de; Cavalcante,M.P.; Rocha,V.C.F.; Costa,J.N.. |
O objetivo do presente trabalho foi utilizar métodos bacteriológicos e moleculares para a identificação do Mycobacteriumbovis em lesões observadas em carcaças de bovinos durante a inspeção post mortem de rotina em matadouros-frigoríficos com serviço de inspeção oficial. Foram acompanhados o abate e a inspeção de 825.394 bovinos, sadios, ao exame antemortem pelo serviço de inspeção oficial em 10 matadouros-frigoríficos do estado da Bahia, entre abril de 2009 e abril de 2012. Cento e oitenta bovinos apresentaram lesões sugestivas de tuberculose e outras linfadenites, as quais foram avaliadas quanto à presença de Mycobacterium bovis por exame bacteriológico e pela PCR multiplex. A maioria das lesões estava localizada em linfonodos do trato respiratório e 71%... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium bovis; PCR; Bacteriologia; BAAR; Bovino. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501585 |
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Petricevich,V.L.; Ueda,C.; Alves,R.C.B.; da Silva,M.A.; Moreno,C.; Melo,A.R.; Dias da Silva,W.. |
Two attenuated bacillus Calmette-Guérin (BCG) preparations derived from the same Moreau strain, Copenhagen but grown in Sauton medium containing starch and bacto-peptone (onco BCG, O-BCG), or asparagine (intradermal BCG, ID-BCG), exhibited indistinguishable DNA sequences and bacterial morphology. The number of viable bacilli recovered from spleen, liver and lungs was approximately the same in mice inoculated with the vaccines and was similarly reduced (over 90%) in mice previously immunized with either BCG vaccine. The humoral immune response evoked by the vaccines was, however, distinct. Spleen cell proliferation accompanying the growth of bacilli in tissue was significantly higher in mice inoculated with O-BCG. These cells proliferated in vitro upon... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus Calmette-Guérin; BCG; Tuberculosis; Mycobacterium bovis; Vaccine. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000100010 |
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Ambrosio,Simone Rodrigues; Oliveira,Eugenia Márcia de Deus; Rodriguez,Cesar Alejandro Rosales; Ferreira Neto,José Soares; Amaku,Marcos. |
Sixty samples of tissue fragments with lesions suggestive of tuberculosis from bovine abattoirs, kept in saturated solution of sodium borate, were subjected to four treatments: 4% NaOH (Petroff Method), 12 % H2SO4 and 1.5% HPC (1-Hexadecylpyridinium Chloride) decontamination, and physiological saline solution (control). The HPC method showed the lowest contamination rate (3%) when compared to control (88%, p<0.001), NaOH (33%, p<0.001) and H2SO4 (21.7%, p<0.002). Regarding the isolation success, the HPC method was better (40%) than the control (3%, p<0.001), NaOH (13%, p=0.001) and H2SO4 (1.7%, p<0.001) methods. These results indicate that HPC is an alternative to the Petroff method. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium bovis; Decontamination; Petroff; HPC. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200008 |
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Issa,Marina de Azevedo; Soares Filho,Paulo Martins; Fonseca Júnior,Antônio Augusto; Hodon,Mikael Arrais; Santos,Lílian Cristian dos; Reis,Jenner Karlisson Pimenta dos; Cerqueira Leite,Rômulo. |
Abstract For the definitive diagnosis of bovine tuberculosis, isolation of the etiologic agent is required. However, there is no consensus on the best methodology for isolation of Mycobacterium bovis in Brazil. This study evaluated the most used decontaminants and culture media in the country, in order to identify the best combination for the Brazilian samples. Three decontaminants - 2% sodium hydroxide (w/v), 0.75% hexadecylpiridinium chloride (w/v) and 5% sulphuric acid (v/v) and four culture media - 7H11 Middlebrook with additives and OADC supplement “A” (7H11 A), the same media with another supplement trademark (7H11 B), tuberculosis blood agar (B83) and Stonebrink's medium were compared. Regarding the isolation, there were no significant differences... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium bovis; Diagnosis; Middlebrook 7H11; Isolation; Sulphuric acid. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100139 |
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Rocha,Vivianne Cambuí Figueiredo; Figueiredo,Salomão Cambuí de; Rosales,Cesar Alejandro Rodriguez; Porto,Camila Dias; Sequeira,Julio Lopes; Ferreira Neto,José Soares; Paes,Antônio Carlos; Salgado,Vanessa Riesz. |
Abstract Tuberculosis (TB) is a chronic disease caused by bacteria belonging to the Mycobacterium tuberculosis complex (MtbC). This disease rarely affects dogs. Canine infections are usually caused by M. tuberculosis. Mycobacterium bovis infections are rare in dogs and associated with consumption of raw milk or contaminated products. Here, we report a Boxer dog who had a M. bovis infection and was admitted to a Brazilian veterinary hospital with a presumptive diagnosis of chronic ehrlichiosis. Despite receiving treatment for chronic ehrlichiosis, it progressed to death. TB was diagnosed during post-mortem examinations using histopathological analysis. Ziehl-Neelsen staining revealed acid-fast bacilli in the kidneys, liver, mesentery, and a mass adhered to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Dog; Mycobacterium bovis. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100109 |
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Medeiros,Luciana dos Santos; Marassi,Carla Dray; Figueiredo,Eduardo Eustáquio S.; Lilenbaum,Walter. |
Bovine tuberculosis, a chronic infection in cattle caused by Mycobacterium bovis, remains an economic and public health problem for several countries. Due to its economic impact on international trade, contagious nature, and implications for human health, global programs to eradicate the disease were implemented worldwide. Those programs are based on slaughtering PPD-reactive animals. Despite the National Programs in Brazil, complete eradication has not been achieved, and the disease remains, albeit at a lower prevalence. The central purpose of this review is to address diagnostic tests for tuberculosis. Considering the course of the infection in cattle, at least two tests, ideally complementary to one another, may be necessary for an adequate diagnosis:... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine Tuberculosis; Mycobacterium bovis; Diagnosis. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300002 |
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Rocha,V.C.M.; Corrêa,S.H.R.; Oliveira,E.M.D.; Rodriguez,C.A.R.; Fedullo,J.D.; Matrone,M.; Setzer,A.; Ikuta,C.Y.; Vejarano,M.P.; Figueiredo,S.M.; Ferreira Neto,J.S.. |
Two waterbucks from São Paulo Zoo Foundation exhibited respiratory symptoms in July 2004. After euthanasia, granulommas in lungs and mediastinic lymph nodes were observed. Acid-fast bacilli isolated were identified as Mycobacterium bovis spoligotype SB0121 by PRA and spoligotyping. They were born and kept in the same enclosure with the same group, without any contact to other species housed in the zoo. This is the first detailed description of M. bovis infection in Kobus ellipsiprymnus. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Mycobacterium bovis; Kobus ellipsiprymnus; Waterbuck; Zoo. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200040 |
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Registros recuperados: 26 | |
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