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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
17/09/2018 |
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Data da última atualização: |
17/09/2018 |
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Autoria: |
COLDITZ, I. G.; WATSON, D. L. |
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Título: |
Effect of immunisation on the early influx of neutrophils during staphylococcal mastitis in ewes. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Research in Veterinary Science, v. 33, n. 2, p. 146-151, Sept. 1982. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The neutrophil influx into mammary secretions was studied in unimmunised, and in systemically and locally immunised, lactating and non-lactating ewes experimentally infected with Staphylococcus aureus. Systemic immunisation was effected by subcutaneous injection of live bacteria or by intramuscular injection of killed bacteria in Freund's incomplete adjuvant. The initial inflammatory response to infection of the mammary glands of systemically immunised lactating ewes was at first comparable with that for unimmunised, lactating ewes. However by eight hours after challenge the leucocyte concentrations were lower in systemically immunised ewes. In non-lactating ewes immunised with live vaccine, higher leucocyte concentrations and higher proportions of neutrophils were recorded four hours after infection (hpi) than for unimmunised ewes or ewes immunised with killed vaccine. Prior local immunisation, by unilateral infusion of killed bacteria into mammary glands, enhanced the initial neutrophil influx in comparison to infection of unimmunised contralateral glands of non-lactating ewes by four hpi. For these animals the proportion of neutrophils in washings from immunised glands were significantly greater than for unimmunised glands four and six hpi. In two of three locally immunised lactating ewes there was a larger neutrophil influx into secretions of locally immunised glands than unimmunised glands six hpi. Neutrophils comprised more than 93 per cent of leucocytes from all infected glands by eight hpi. The results suggest that differences in the rate of influx of neutrophils into infected mammary glands of immunised and unimmunised ewes could be attributed to immunological enhancement of neutrophil recruitment or to limitation of toxic damage to tissues with consequently diminished neutrophil invasion. MenosAbstract: The neutrophil influx into mammary secretions was studied in unimmunised, and in systemically and locally immunised, lactating and non-lactating ewes experimentally infected with Staphylococcus aureus. Systemic immunisation was effected by subcutaneous injection of live bacteria or by intramuscular injection of killed bacteria in Freund's incomplete adjuvant. The initial inflammatory response to infection of the mammary glands of systemically immunised lactating ewes was at first comparable with that for unimmunised, lactating ewes. However by eight hours after challenge the leucocyte concentrations were lower in systemically immunised ewes. In non-lactating ewes immunised with live vaccine, higher leucocyte concentrations and higher proportions of neutrophils were recorded four hours after infection (hpi) than for unimmunised ewes or ewes immunised with killed vaccine. Prior local immunisation, by unilateral infusion of killed bacteria into mammary glands, enhanced the initial neutrophil influx in comparison to infection of unimmunised contralateral glands of non-lactating ewes by four hpi. For these animals the proportion of neutrophils in washings from immunised glands were significantly greater than for unimmunised glands four and six hpi. In two of three locally immunised lactating ewes there was a larger neutrophil influx into secretions of locally immunised glands than unimmunised glands six hpi. Neutrophils comprised more than 93 per cent of leucocytes from... Mostrar Tudo |
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Palavras-Chave: |
Milk cytology; Vaccines Attenuated. |
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Thesaurus Nal: |
Animal pathology; Bacterial vaccines; Cell movement; Immunization; Lactation; Mastitis; Neutrophils; Pharmacology; Pregnancy complications; Sheep diseases; Staphylococcal intoxication. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02675naa a2200289 a 4500
001 2095845
005 2018-09-17
008 1982 bl uuuu u00u1 u #d
100 1 $aCOLDITZ, I. G.
245 $aEffect of immunisation on the early influx of neutrophils during staphylococcal mastitis in ewes.
260 $c1982
520 $aAbstract: The neutrophil influx into mammary secretions was studied in unimmunised, and in systemically and locally immunised, lactating and non-lactating ewes experimentally infected with Staphylococcus aureus. Systemic immunisation was effected by subcutaneous injection of live bacteria or by intramuscular injection of killed bacteria in Freund's incomplete adjuvant. The initial inflammatory response to infection of the mammary glands of systemically immunised lactating ewes was at first comparable with that for unimmunised, lactating ewes. However by eight hours after challenge the leucocyte concentrations were lower in systemically immunised ewes. In non-lactating ewes immunised with live vaccine, higher leucocyte concentrations and higher proportions of neutrophils were recorded four hours after infection (hpi) than for unimmunised ewes or ewes immunised with killed vaccine. Prior local immunisation, by unilateral infusion of killed bacteria into mammary glands, enhanced the initial neutrophil influx in comparison to infection of unimmunised contralateral glands of non-lactating ewes by four hpi. For these animals the proportion of neutrophils in washings from immunised glands were significantly greater than for unimmunised glands four and six hpi. In two of three locally immunised lactating ewes there was a larger neutrophil influx into secretions of locally immunised glands than unimmunised glands six hpi. Neutrophils comprised more than 93 per cent of leucocytes from all infected glands by eight hpi. The results suggest that differences in the rate of influx of neutrophils into infected mammary glands of immunised and unimmunised ewes could be attributed to immunological enhancement of neutrophil recruitment or to limitation of toxic damage to tissues with consequently diminished neutrophil invasion.
650 $aAnimal pathology
650 $aBacterial vaccines
650 $aCell movement
650 $aImmunization
650 $aLactation
650 $aMastitis
650 $aNeutrophils
650 $aPharmacology
650 $aPregnancy complications
650 $aSheep diseases
650 $aStaphylococcal intoxication
653 $aMilk cytology
653 $aVaccines Attenuated
700 1 $aWATSON, D. L.
773 $tResearch in Veterinary Science$gv. 33, n. 2, p. 146-151, Sept. 1982.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 121. |  | NOME, C.; MAGALHAES, P. C.; OLIVEIRA, E.; NOME, S.; LAGUNA, I. G. Differences in intracellular localization of corn stunt spiroplasmas in magnesium treated maize. Biocell, Mendoza, v. 33, n. 2, p. 133-136, maio/ago. 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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| 126. | | GIMENEZ-PECCI, M.P.; OLIVEIRA, E.; RESENDE, R.; BORGOGNO, C.; NOME, C. F.; LAGUNA, I. G. Occurrence of maize rayado fino virus in maize in Argentina. Plant Disease, St. Paul, v. 84, n. 9, p. 1046, 2000.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 129. | | CHRISÓSTOMO, I. G.; LANNA, A. C.; GODOY, S. G.; ROSA, J. R.; DIDONET, A. D. N total e C orgânico do solo em transição para produção orgânica de arroz de terras altas (Oryza sativa L.) no cerrado. In: CONGRESSO BRASILEIRO DA CADEIA PRODUTIVA DE ARROZ, 2.; REUNIÃO NACIONAL DE PESQUISA DE ARROZ, 8., 2006, Brasília, DF. Anais... Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2006. (Embrapa Arroz e Feijão. Documentos, 196).| Tipo: Artigo em Anais de Congresso |
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| 132. | | OLIVEIRA, M. N. de; SABOURIN, E.; ALTAFIN, I. G.; ALMEIDA, S. C. R. de. As organizações sociais: trajetórias, lições e perspectivas. In: OLIVEIRA, M. N. de; XAVIER, J. H. V.; ALMEIDA, S. C. R. de; SCOPEL, E. (Ed.). Projeto Unaí: pesquisa e desenvolvimento em assentamentos de reforma agrária. Brasília, DF: Embrapa Informação Tecnológica; Planaltina, DF: Embrapa Cerrados, 2009. p. 95-141.| Tipo: Capítulo em Livro Técnico-Científico |
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