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	Provedor de dados BJM (2) Autor Carvalho,Maria Auxiliadora Roque de (2) Caires,Nely Cristina Medeiros (1) Campos,Patrícia Cota (1) Costa,José Eustáquio da (1) Drummond,Regina Maria Nardi (1) Farias,Flávio Furtado de (1) Farias,Luiz de Macedo (1) Farias,Luiz de Mácêdo (1) Lima,Francisca Lúcia de (1) Matos,Aline Magalhães (1) Nicoli,Jacques Robert (1) Ribeiro Sobrinho,Antônio Paulino (1) Tavares,Carlos Alberto Pereira (1) Totola,Antônio Helvécio (1) Mais... Palavra-chave Actinobacillus actinomycetemcomitans (1) Antagonism (1) Bifidobacterium adolescentis (1) Chemiluminescence assay (1) Clostridium butyricum (1) Fusobacterium nucleatum (1) Leukotoxic activity (1) Periodontopathogen (1) Root canal system (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2007 (1) 2001 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última LEUKOTOXIC ACTIVITY OF ACTINOBACILLUS ACTINOMYCETEMCOMITANS ISOLATED FROM HUMAN AND NON-HUMAN PRIMATES BJM Lima,Francisca Lúcia de; Farias,Flávio Furtado de; Campos,Patrícia Cota; Totola,Antônio Helvécio; Tavares,Carlos Alberto Pereira; Costa,José Eustáquio da; Farias,Luiz de Mácêdo; Carvalho,Maria Auxiliadora Roque de. Actinobacillus actinomycetemcomitans is a clinically relevant periodontopathogenic Gram-negative coccobacillus that produces a leukotoxin of the RTX cytolysin family. In this study, we evaluated the leukotoxic activity of A. actinomycetemcomitans strains isolated from human and marmosets by Trypan blue exclusion and by the chemiluminescence assays. Among eight A. actinomycetemcomitans human strains studied, two (P2.17 and P8.12) were classified as high leukotoxin producers and among eight marmoset strains, one (M22.11) showed high leukotoxin production, as determined by Trypan blue exclusion assay. The reference strains ATCC 29523 and FDC Y4 respectively behaved like moderate and low producers. The chemiluminescence assay was used to evaluate the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Actinobacillus actinomycetemcomitans; Periodontopathogen; Leukotoxic activity; Chemiluminescence assay. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000300018 Partial characterization of antagonistic substance produced by a Clostridium butyricum strain BJM Caires,Nely Cristina Medeiros; Matos,Aline Magalhães; Farias,Luiz de Macedo; Carvalho,Maria Auxiliadora Roque de; Drummond,Regina Maria Nardi; Nicoli,Jacques Robert; Ribeiro Sobrinho,Antônio Paulino. The production of antagonistic substance by bacterium present in the infected root canal system (RCS) probably is an important ecological factor for its successful colonization of the local. The objective of this study was to partially characterize an antagonistic substance produced by a Clostridium butyricum isolated from infected RCS.Production of inhibitory compound was evaluated by the agar double layer diffusion technique using Fusobacterium nucleatum and Bifidobacterium adolescentis as indicator bacteria. The physicochemical and biochemical factors tested for the partial characterization were influence of pH and temperature and susceptibility to the action of some proteolytic enzymes. An inhibition zone was observed against the two indicator strains... Tipo: Info:eu-repo/semantics/article Palavras-chave: Clostridium butyricum; Fusobacterium nucleatum; Bifidobacterium adolescentis; Antagonism; Root canal system. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200014 Registros recuperados: 2 Primeira ... 1 ... Última

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