Clumping Factor
Mostrando 13-24 de 98 artigos, teses e dissertações.
-
13. Use of the Clumping Factor Reaction for the Identification of Encapsulated Strains of Staphylococcus aureus from Human Sources
Using the clumping factor test on 815 strains of Staphylococcus aureus, 775 positive strains were of compact morphology. Of 40 negative strains, 39 were diffuse in serum-soft agar. The test may be used to detect capsulated S. aureus strains.
-
14. Contribution of Clumping Factor B to Pathogenesis of Experimental Endocarditis due to Staphylococcus aureus
Staphylococcus aureus Newman with an insertion mutation in clfB, the gene encoding clumping factor B, only marginally decreased infection rate (P > 0.05) in rats with experimental endocarditis. In contrast, clfB complementation on a multicopy plasmid significantly increased infectivity (P < 0.05) over the deleted mutants. Although clfB could affect endovascu
American Society for Microbiology.
-
15. Comparison of staphylococcal clumping factor and protein A.
-
16. Isolation of Staphylococcus aureus clumping factor.
Immunochemically identical components were isolated from water-soluble phases of five Staphylococcus aureus strains by affinity chromatography on fibrinogen-linked Sepharose 4B. The elution was performed with 1 M MgCl2. The component could be isolated from sonicated preparations of whole cells, cell walls, and extracellular products of S. aureus but not from
-
17. Factors affecting the demonstration of staphylococcal free coagulase and clumping factor.
-
18. SLIME AS A POSSIBLE FACTOR IN CELL CLUMPING IN NOCARDIA CORALLINA1
-
19. Antibacterial Action of Extracellular Mammalian Group IIA Phospholipase A2 against Grossly Clumped Staphylococcus aureus
Fibrinogen-dependent interactions of Staphylococcus aureus are believed to contribute to bacterial virulence by promoting bacterial attachment to fibrinogen-coated surfaces and inducing the formation of bacterial clumps that are likely resistant to phagocytosis. Although S. aureus produces several fibrinogen-binding proteins, the cell wall-associated protein
American Society for Microbiology.
-
20. DEMONSTRATION OF STAPHYLOCOCCAL CLUMPING FACTOR AND FREE COAGULASE IN SOFT AGAR MEDIA1
-
21. Case of Staphylococcus schleiferi Endocarditis and a Simple Scheme To Identify Clumping Factor-Positive Staphylococci
American Society for Microbiology.
-
22. Relation of Mucoid Growth of Staphylococcus aureus to Clumping Factor Reaction, Morphology in Serum-Soft Agar, and Virulence
The growth characteristics of several strains of Staphylococcus aureus in Brain Heart Infusion and in a modified Staphylococcus Medium No. 110 were compared. In the latter medium all of the strains studied showed an increased mucoid character. Some of the strains studied showed a greater potential to synthesize excess slime layer material than others. The hi
-
23. Genetic evidence that bound coagulase of Staphylococcus aureus is not clumping factor.
Staphylococcus aureus Newman cells carry a surface receptor for fibrinogen called clumping factor. The bacteria also express coagulase, an extracellular protein that binds to prothrombin to form a complex with thrombinlike activity which coverts fibrinogen to fibrin. We have confirmed a recent report (M. K. Bodén and J.-I. Flock, Infect. Immun. 57:2358-2363
-
24. Coagulase production by strains of Staphylococcus aureus of differing resistance characters: a comparison of two traditional methods with a latex agglutination system detecting both clumping factor and protein A.
Five groups of strains of Staphylococcus aureus (54 in total) were tested by slide and tube coagulase methods with rabbit and human plasma, and the results were compared with a latex test for both clumping factor and Protein A (Staphaurex, Wellcome Foundation). The five groups comprised: epidemic methicillin resistant S aureus (group 1); other methicillin re