Consulta: subjectFacets:"Cell-mediated immune response"
Registros recuperados: 2
Data/hora: 06/06/2024 09:49:31

First evidence for a Vibrio strain pathogenic to Mytilus edulis altering hemocyte immune capacities
Provedor de dados: 5
Autores: Ben Cheikh, Yosra; Travers, Marie-agnes; Morga, Benjamin; Godfrin, Yoann; Rioult, Damien; Le Foll, Franck.
Bacterial isolates were obtained from mortality events affecting Mytilus edulis and reported by professionals in 2010-2013 or from mussel microflora. Experimental infections allowed the selection of two isolates affiliated to V. splendidus/V. hemicentroti type strains: a virulent 10/068 1T1 (76,6% and 90% mortalities in 24h and 96h) and an innocuous 12/056 M24T1 (0% and 23,3% in 24h and 96h). These two strains were GFP-tagged and validated for their growth characteristics and virulence as genuine models for exposure. Then, host cellular immune responses to the microbial invaders were assessed. In the presence of the virulent strain, hemocyte motility was instantaneously enhanced but markedly slowed down after 2h exposure. By contrast, hemocyte velocity...
Tipo: Text
Palavras-chave: Innate immunity; Molluscs; Cell-mediated immune response; Bacterial infections; Green fluorescent protein.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00302/41336/40522.pdf

Effect of vitamin E levels on the cell-mediated immunity of broilers vaccinated against coccidiosis
Provedor de dados: 89
Autores: Silva,ICM da; Ribeiro,AML; Canal,CW; Vieira,MM; Pinheiro,CC; Gonçalves,T; de Moraes,ML; Ledur,VS.
Studies on the relationships between animal nutrition and immunity have sought reliable methodologies to measure responses. Cell-mediated immune response is similarly studied in humans. The cutaneous basophil hypersensitivity test (CBH) is one of the methods to measure that response and consists in the infiltration of inflammatory cells, particularly of lymphocytes and basophils, as result of the application of substances capable of inducing cell proliferation in determined sites, such as wings, wattle, and interdigital space in birds. CBH is considered a simple and fast method and can be applied in birds of different ages. In immunocompetence studies with poultry, phytohemagglutinin-P (PHA-P) is a commonly used substance, despite the variability of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Coccidiosis; Cell-mediated immune response; Newcastle disease; Vaccine; Vitamin E.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000100008