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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
01/08/1992 |
Data da última atualização: |
02/05/2023 |
Autoria: |
CHIN, J. C.; PANO, B.; CARRIGAN, M. |
Título: |
Comparison of seroreactivity of rams with brucellosis in a complement fixation test, whole cell ELISA and by immunoblotting. |
Ano de publicação: |
1991 |
Fonte/Imprenta: |
Veterinary Microbiology, v. 26, n. 3, p. 291-299, 1991. |
DOI: |
10.1016/0378-1135(91)90022-8 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: In rams with ovine brucellosis, a high degree of serological correlation exists between the complement fixation (CF) test which utilises antigen extracted from bacteria with hot saline, and the ELISA reactivity using methanol-fixed Brucella ovis as the assay reagent. Since the whole cell ELISA (CELISA) detects mainly antibodies against surface antigens of B. ovis, it was concluded that the similar findings of the two serological tests is due in part to the presence of membrane antigens in the CF test antigen following hot saline extraction of intact bacteria. Immunoblots with pooled sera representing different CF titres confirmed that the major immunoreactive antigens of B. ovis were located in four zones: alpha, beta, gamma 1 and 2 with corresponding apparent molecular masses of 55 and 60 kDa; 27 and 29 kDa; 18.5-20 kDa and 17-18 kDa, respectively. These zones of reactivity were consistently present in immunoblots when assayed against different B. ovis isolates even though Coomassie brilliant blue staining of SDS-PAGE gels revealed some differences in polypeptide banding patterns. However, these intensely-stained CBB bands located at 38 and 40 kDa which distinguished three of the seven B. ovis isolates were considerably less reactive in immunoblots compared to polypeptides that were located at positions equivalent to alpha, beta or gamma reactivities. Intensity of immunoblot reactivity against polypeptides located in the alpha, beta and gamma zones intensified with increasing CF titre. Sera with CF titres greater than 32 also tended to react against bands of higher apparent molecular masses located at 65, 70, 73, 78, 80 and 86 kD MenosAbstract: In rams with ovine brucellosis, a high degree of serological correlation exists between the complement fixation (CF) test which utilises antigen extracted from bacteria with hot saline, and the ELISA reactivity using methanol-fixed Brucella ovis as the assay reagent. Since the whole cell ELISA (CELISA) detects mainly antibodies against surface antigens of B. ovis, it was concluded that the similar findings of the two serological tests is due in part to the presence of membrane antigens in the CF test antigen following hot saline extraction of intact bacteria. Immunoblots with pooled sera representing different CF titres confirmed that the major immunoreactive antigens of B. ovis were located in four zones: alpha, beta, gamma 1 and 2 with corresponding apparent molecular masses of 55 and 60 kDa; 27 and 29 kDa; 18.5-20 kDa and 17-18 kDa, respectively. These zones of reactivity were consistently present in immunoblots when assayed against different B. ovis isolates even though Coomassie brilliant blue staining of SDS-PAGE gels revealed some differences in polypeptide banding patterns. However, these intensely-stained CBB bands located at 38 and 40 kDa which distinguished three of the seven B. ovis isolates were considerably less reactive in immunoblots compared to polypeptides that were located at positions equivalent to alpha, beta or gamma reactivities. Intensity of immunoblot reactivity against polypeptides located in the alpha, beta and gamma zones intensified wit... Mostrar Tudo |
Palavras-Chave: |
Brucella analysis. |
Thesagro: |
Brucelose; Diagnostico; Doença; Epidemia; Ovino. |
Thesaurus Nal: |
Brucellosis; Dielectrophoresis; Enzyme-linked immunosorbent assay; Immunoblotting; Immunology; Peptides; Polyacrylamide gel electrophoresis; Sheep diseases; Surface antigens. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02665naa a2200337 a 4500 001 1520397 005 2023-05-02 008 1991 bl uuuu u00u1 u #d 024 7 $a10.1016/0378-1135(91)90022-8$2DOI 100 1 $aCHIN, J. C. 245 $aComparison of seroreactivity of rams with brucellosis in a complement fixation test, whole cell ELISA and by immunoblotting.$h[electronic resource] 260 $c1991 520 $aAbstract: In rams with ovine brucellosis, a high degree of serological correlation exists between the complement fixation (CF) test which utilises antigen extracted from bacteria with hot saline, and the ELISA reactivity using methanol-fixed Brucella ovis as the assay reagent. Since the whole cell ELISA (CELISA) detects mainly antibodies against surface antigens of B. ovis, it was concluded that the similar findings of the two serological tests is due in part to the presence of membrane antigens in the CF test antigen following hot saline extraction of intact bacteria. Immunoblots with pooled sera representing different CF titres confirmed that the major immunoreactive antigens of B. ovis were located in four zones: alpha, beta, gamma 1 and 2 with corresponding apparent molecular masses of 55 and 60 kDa; 27 and 29 kDa; 18.5-20 kDa and 17-18 kDa, respectively. These zones of reactivity were consistently present in immunoblots when assayed against different B. ovis isolates even though Coomassie brilliant blue staining of SDS-PAGE gels revealed some differences in polypeptide banding patterns. However, these intensely-stained CBB bands located at 38 and 40 kDa which distinguished three of the seven B. ovis isolates were considerably less reactive in immunoblots compared to polypeptides that were located at positions equivalent to alpha, beta or gamma reactivities. Intensity of immunoblot reactivity against polypeptides located in the alpha, beta and gamma zones intensified with increasing CF titre. Sera with CF titres greater than 32 also tended to react against bands of higher apparent molecular masses located at 65, 70, 73, 78, 80 and 86 kD 650 $aBrucellosis 650 $aDielectrophoresis 650 $aEnzyme-linked immunosorbent assay 650 $aImmunoblotting 650 $aImmunology 650 $aPeptides 650 $aPolyacrylamide gel electrophoresis 650 $aSheep diseases 650 $aSurface antigens 650 $aBrucelose 650 $aDiagnostico 650 $aDoença 650 $aEpidemia 650 $aOvino 653 $aBrucella analysis 700 1 $aPANO, B. 700 1 $aCARRIGAN, M. 773 $tVeterinary Microbiology$gv. 26, n. 3, p. 291-299, 1991.
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Embrapa Caprinos e Ovinos (CNPC) |
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Registros recuperados : 10 | |
5. |  | COBUCI, J. A.; COSTA, C. N.; CARDOSO, F. F.; BRACCINI NETO, J.; AMBROSINI, D. P.; MOURA, M. Q. DE. Interação genótipo-ambiente na raça holandesa utilizando modelo de norma de reação. In: SIMPÓSIO BRASILEIRO DE MELHORAMENTO ANIMAL, 10., 2013, Uberaba. Anais... Viçosa: Sociedade Brasileira de Melhoramento Animal, 2013.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite; Embrapa Pecuária Sul. |
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6. |  | PINTO, N. P.; MINHO, A. P.; GASPAR, E. B.; DOMINGUES, R.; MOURA, M. Q. de; LEITE, F. P. L. Controle de Haemonchus contortus em ovinos utilizando Saccharomyces cerevisiae. In: ENCONTRO DE PÓS-GRADUAÇÃO DA UFPEL, 19., 2017, Pelotas, RS. Anais... Pelota, RS: UFPel, 2017. p. 1-4.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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7. |  | BERNE, N.; MOURA, M. Q.; GASPAR, E. B.; MINHO, A. P.; DOMINGUES, R.; SANTOS, P. A.; COSTA, C. M.; LEIVAS LEITE, F. P. Avaliação da resposta imune de ovinos infectados com Haemunchus contortus. In: CONGRESSO BRASILEIRO DE PARASITOLOGIA VETERINÁRIA, 20., 2018, Londrina, PR. Anais... Londrina, PR: CBPV; UEL, 2018. p.321. 17 a 19 de setembro de 2018.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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8. |  | PINTO, N. B.; GASPAR, E. B.; MINHO, A. P.; MOURA, M. Q. de; CAPELLA, G. de A.; LEITE, F. P. L. Redução da prolificidade de Haemonchus contortus em ovinos estimulados por levedura. In: ENCONTRO DE PÓS-GRADUAÇÃO, 21.; SEMANA INTEGRADA, 5., 2019, Pelotas. Anais... Pelotas: UFPel, 2019. ENPOS.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Pecuária Sul. |
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9. |  | PINTO, N. B.; GASPAR, E. B.; MINHO, A. P.; DOMINGUES, R.; MOURA, M. Q. de; VARELA JUNIOR, A. S.; CAPELLA, G. A.; SANTOS, P. A. dos; COSTA, C. M. da; LEITE, F. P. L. Saccharomyces cerevisiae (YT001) supplementation for the control of Haemonchus contortus and modulation of the immune response of sheep. Beneficial Microbes, v. 11, n. 2, p. 175-181, 2020.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Pecuária Sudeste; Embrapa Pecuária Sul. |
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10. |  | PINHEIRO, N. B.; GASPAR, E. B.; MINHO, A. P.; DOMINGUES, R.; MOURA, M. Q. DE; VARELA JUNIOR, A. S.; CAPELLA, G. DE A.; STROTHMANN, A. L.; TERTO, W. D.; LEITE, F. P. L. Sheep immune-stimulated with Saccharomyces boulardii show reduced prolificacy of Haemonchus contortus. Parasite Immunology, v. 44, n. 12, e12954, Dec. 2022. 6 p.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Pecuária Sudeste; Embrapa Pecuária Sul. |
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Registros recuperados : 10 | |
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