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1.
Vet Res Commun ; 19(6): 451-6, 1995.
Artigo em Inglês | MEDLINE | ID: mdl-8619282

RESUMO

A peroxidase-antiperoxidase (PAP) technique was used to detect Clostridium chauvoei in tissue sections from sheep inoculated intramuscularly with a pure culture of this microorganism. Samples of various tissues were taken for bacteriology, histopathology and immunohistochemistry. A primary antiserum against C. chauvoei for use in the PAP technique was produced in rabbits. Formalin-fixed, paraffin-embedded sections of muscle samples were positively and specifically stained by the PAP technique. The results were consistent with those obtained by bacteriology, but the PAP test was simpler, quicker and less expensive than the bacteriological procedures. The use of the PAP technique would be appropriate for detecting clostridial infections without the constraints of conventional identification methods, especially where laboratory conditions for anaerobic procedures are not readily available.


Assuntos
Infecções por Clostridium/veterinária , Clostridium/isolamento & purificação , Doenças dos Ovinos/diagnóstico , Animais , Anticorpos Antibacterianos/análise , Anticorpos Antibacterianos/imunologia , Clostridium/imunologia , Infecções por Clostridium/diagnóstico , Infecções por Clostridium/microbiologia , Formaldeído , Técnicas Imunoenzimáticas/normas , Técnicas Imunoenzimáticas/veterinária , Imuno-Histoquímica , Injeções Intramusculares/veterinária , Masculino , Músculo Esquelético/microbiologia , Inclusão em Parafina/veterinária , Coelhos , Ovinos , Doenças dos Ovinos/microbiologia
12.
Boll Ist Sieroter Milan ; 55(4): 304-7, 1976 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-1016583

RESUMO

A simple, reproducible method is described for in vitro culture of mouse lymphocytes purified by differential centrifugation through Ficoll-Hypaque gradient. Peripheral blood, spleen and thymus purified lymphocytes responded well to in vitro PHA stimulation as measured by blast transformation and tritiated thymidine incorporation; the lowest values were observed with thymus lymphocytes.


Assuntos
Lectinas , Linfócitos/imunologia , Animais , Formação de Anticorpos , Células Cultivadas , Centrifugação/métodos , Ativação Linfocitária , Masculino , Camundongos , Baço/imunologia , Timo/imunologia
13.
Boll Ist Sieroter Milan ; 55(4): 308-10, 1976 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-1016584

RESUMO

The in vitro response of spleen cells to phytohemagglutinin (PHA) was studied in BALB mice bearing an allogeneic AKR lymphoma (progressors). A significant decrease in blast transformation and DNA synthesis was observed in these animals as compared with those rejecting the tumor (regressors) or with unchallenged controls. It is postulated that either an alteration in PHA lymphocyte receptors or the presence of enhancing serum factors may be responsible for this decrease in PHA response.


Assuntos
Lectinas , Linfoma/imunologia , Baço/imunologia , Animais , Formação de Anticorpos , DNA de Neoplasias/biossíntese , Feminino , Ativação Linfocitária , Linfoma/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos , Neoplasias Experimentais/imunologia , Neoplasias Experimentais/metabolismo
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