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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Corte; Embrapa Gado de Leite. |
Data corrente: |
17/03/2014 |
Data da última atualização: |
05/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ARAUJO, C. P.; OSÓRIO, A. L. A. R.; JORGE, K. S. G.; RAMOS, C. A. N.; S. FILHO, A. F.; VIDAL, C. E. S.; ROXO, E.; NISHIBE, c.; ALMEIDA, N. F.; F. JUNIOR, A. A.; SILVA, M. R.; B. NETO, J. D.; CERQUEIRA, V. D.; ZUMÁRRAGA, M.; ARAUJO, F. R. |
Afiliação: |
MARCIO ROBERTO SILVA, CNPGL. |
Título: |
Detection of Mycobacterium bovis in Bovine and Bubaline Tissues Using Nested-PCR for TbD1. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Plos One, v. 9, n. 3, p. 1-6, 2014 |
Idioma: |
Inglês Português |
Conteúdo: |
In the present study, a nested-PCR system, targeting the TbD1 region, involving the performance of conventional PCR followed by real-time PCR, was developed to detect Mycobacterium bovis in bovine/bubaline tissue homogenates. The sensitivity and specificity of the reactions were assessed with DNA samples extracted from tuberculous and non-tuberculous mycobacteria, as well as other actinomycetales species and DNA samples extracted directly from bovine and bubaline tissue homogenates. In terms of analytical sensitivity, the DNA of M. bovis AN5 was detected up to 1.56 ng with conventional PCR, 97.6 pg with real-time PCR, and 1.53 pg with nested-PCR in the reaction mixture. The nested-PCR exhibited 100% analytical specificity for M. bovis when tested with the DNA of reference strains of environmental mycobacteria and closely-related Actinomycetales. A clinical sensitivity value of 76.0% was detected with tissue samples from animals that exhibited positive results in the comparative intradermal tuberculin test (CITT), as well as from those with lesions compatible with tuberculosis (LCT) that rendered positive cultures. A clinical specificity value of 100% was detected with tissue samples from animals with CITT- results, with no visible lesions (NVL) and negative cultures. No significant differences were found between the nested-PCR and culture in terms of detecting CITT+ animals with LCT or with NVL. No significant differences were recorded in the detection of CITT- animals with NVL. However, nested-PCR detected a significantly higher number of positive animals than the culture in the group of animals exhibiting LCT with no previous records of CITT. The use of the nested-PCR assay to detect M. bovis in tissue homogenates provided a rapid diagnosis of bovine and bubaline tuberculosis. MenosIn the present study, a nested-PCR system, targeting the TbD1 region, involving the performance of conventional PCR followed by real-time PCR, was developed to detect Mycobacterium bovis in bovine/bubaline tissue homogenates. The sensitivity and specificity of the reactions were assessed with DNA samples extracted from tuberculous and non-tuberculous mycobacteria, as well as other actinomycetales species and DNA samples extracted directly from bovine and bubaline tissue homogenates. In terms of analytical sensitivity, the DNA of M. bovis AN5 was detected up to 1.56 ng with conventional PCR, 97.6 pg with real-time PCR, and 1.53 pg with nested-PCR in the reaction mixture. The nested-PCR exhibited 100% analytical specificity for M. bovis when tested with the DNA of reference strains of environmental mycobacteria and closely-related Actinomycetales. A clinical sensitivity value of 76.0% was detected with tissue samples from animals that exhibited positive results in the comparative intradermal tuberculin test (CITT), as well as from those with lesions compatible with tuberculosis (LCT) that rendered positive cultures. A clinical specificity value of 100% was detected with tissue samples from animals with CITT- results, with no visible lesions (NVL) and negative cultures. No significant differences were found between the nested-PCR and culture in terms of detecting CITT+ animals with LCT or with NVL. No significant differences were recorded in the detection of CITT- animals with ... Mostrar Tudo |
Palavras-Chave: |
Bovine and bubaline tuberculosis; Nested-PCR system. |
Thesaurus Nal: |
Mycobacterium abscessus. |
Categoria do assunto: |
-- L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/119848/1/ARAUJO-C.-P..pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/99300/1/pone.0091023-1..6-2014-Nested-PCR.pdf
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Marc: |
LEADER 02739naa a2200325 a 4500 001 2010358 005 2024-02-05 008 2014 bl uuuu u00u1 u #d 100 1 $aARAUJO, C. P. 245 $aDetection of Mycobacterium bovis in Bovine and Bubaline Tissues Using Nested-PCR for TbD1.$h[electronic resource] 260 $c2014 520 $aIn the present study, a nested-PCR system, targeting the TbD1 region, involving the performance of conventional PCR followed by real-time PCR, was developed to detect Mycobacterium bovis in bovine/bubaline tissue homogenates. The sensitivity and specificity of the reactions were assessed with DNA samples extracted from tuberculous and non-tuberculous mycobacteria, as well as other actinomycetales species and DNA samples extracted directly from bovine and bubaline tissue homogenates. In terms of analytical sensitivity, the DNA of M. bovis AN5 was detected up to 1.56 ng with conventional PCR, 97.6 pg with real-time PCR, and 1.53 pg with nested-PCR in the reaction mixture. The nested-PCR exhibited 100% analytical specificity for M. bovis when tested with the DNA of reference strains of environmental mycobacteria and closely-related Actinomycetales. A clinical sensitivity value of 76.0% was detected with tissue samples from animals that exhibited positive results in the comparative intradermal tuberculin test (CITT), as well as from those with lesions compatible with tuberculosis (LCT) that rendered positive cultures. A clinical specificity value of 100% was detected with tissue samples from animals with CITT- results, with no visible lesions (NVL) and negative cultures. No significant differences were found between the nested-PCR and culture in terms of detecting CITT+ animals with LCT or with NVL. No significant differences were recorded in the detection of CITT- animals with NVL. However, nested-PCR detected a significantly higher number of positive animals than the culture in the group of animals exhibiting LCT with no previous records of CITT. The use of the nested-PCR assay to detect M. bovis in tissue homogenates provided a rapid diagnosis of bovine and bubaline tuberculosis. 650 $aMycobacterium abscessus 653 $aBovine and bubaline tuberculosis 653 $aNested-PCR system 700 1 $aOSÓRIO, A. L. A. R. 700 1 $aJORGE, K. S. G. 700 1 $aRAMOS, C. A. N. 700 1 $aS. FILHO, A. F. 700 1 $aVIDAL, C. E. S. 700 1 $aROXO, E. 700 1 $aNISHIBE, c. 700 1 $aALMEIDA, N. F. 700 1 $aF. JUNIOR, A. A. 700 1 $aSILVA, M. R. 700 1 $aB. NETO, J. D. 700 1 $aCERQUEIRA, V. D. 700 1 $aZUMÁRRAGA, M. 700 1 $aARAUJO, F. R. 773 $tPlos One$gv. 9, n. 3, p. 1-6, 2014
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Embrapa Gado de Leite (CNPGL) |
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Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
20/05/2008 |
Data da última atualização: |
25/09/2019 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
BOMFIM, M. A. D.; RODRIGUES, M. T.; RODRIGUES, C. A. F.; BRANCO, R. H.; SILVA, M. M. C. da; BOMFIM, E. R. P.; VIANA, V. |
Afiliação: |
MARCO AURELIO DELMONDES BOMFIM, CNPC. |
Título: |
Effect of profiles of neutral detergent soluble carbohydrate on microbial protein synthesis in dairy goats. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
South African Journal of Animal Science, v. 34, p. 47-49, 2004. Suplemento 1. |
Idioma: |
Inglês |
Notas: |
Edição dos Proceedings of the 8th International Conference on Goats, Pretoria, 4th to 9th, July, 2004. |
Palavras-Chave: |
Fibra em detergente neutro. |
Thesagro: |
Caprino; Carboidrato; Forragem; Síntese de Proteína. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00874nam a2200241 a 4500 001 1534016 005 2019-09-25 008 2004 bl uuuu u00u1 u #d 100 1 $aBOMFIM, M. A. D. 245 $aEffect of profiles of neutral detergent soluble carbohydrate on microbial protein synthesis in dairy goats.$h[electronic resource] 260 $aSouth African Journal of Animal Science, v. 34, p. 47-49, 2004. Suplemento 1.$c2004 500 $aEdição dos Proceedings of the 8th International Conference on Goats, Pretoria, 4th to 9th, July, 2004. 650 $aCaprino 650 $aCarboidrato 650 $aForragem 650 $aSíntese de Proteína 653 $aFibra em detergente neutro 700 1 $aRODRIGUES, M. T. 700 1 $aRODRIGUES, C. A. F. 700 1 $aBRANCO, R. H. 700 1 $aSILVA, M. M. C. da 700 1 $aBOMFIM, E. R. P. 700 1 $aVIANA, V.
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