Clumping Factor
Mostrando 1-12 de 98 artigos, teses e dissertações.
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1. Isolation, pathogenicity and disinfection of Staphylococcus aureus carried by insects in two public hospitals of Vitória da Conquista, Bahia, Brazil
Currently, hospital infection is a serious public health problem, and several factors may influence the occurrence of these infections, including the presence of insects, which are carriers of multidrug-resistant bacterial species. The aim of this study was to isolate staphylococci carried by insects in two public hospitals of Vitoria da Conquista, Bahia and
Braz J Infect Dis. Publicado em: 2014-04
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2. Staphylococcus lugdunensis: um olhar diferenciado no laboratório clínico
Os estafilococos coagulase negativos (ECNs) são cocos Gram-positivos usualmente considerados contaminantes em laboratórios de microbiologia clínica. Apesar de pertencer a este grupo, Staphylococcus lugdunensis pode causar infecções complicadas, como endocardites, infecções de pele e tecidos moles, osteomielites, entre outras. Além da formação de bi
Jornal Brasileiro de Patologia e Medicina Laboratorial. Publicado em: 2011-04
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3. Estrutura etária e distribuição espacial de Myrcianthes pungens (O. Berg) Legrand (Myrtaceae) em um trecho de mata ciliar do rio da Prata, no município de Jardim, Mato Grosso do Sul
The objective of this study was to evaluate the size structure and spatial distribution model of the arboreal species Myrcianthes pungens (O. Berg) Legrand, (Myrtaceae). This is a climax, shade-tolerant semideciduous species, which is distributed from the states of Mato Grosso do Sul and São Paulo to the northern Uruguai. It is actually classified as a thre
Publicado em: 2006
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4. Inhibition of Fibrinogen Reaction by Polysaccharide of Encapsulated Staphylococcus aureus
Encapsulated and nonencapsulated strains of Staphylococcus aureus which lack coagulase or clumping factor (bound coagulase), or both, were examined for the antigen associated with the fibrinogen-cell clumping reaction. Extracts of the cells were tested for the ability to react with fibrinogen or to inhibit fibrinogen precipitation. Antisera prepared against
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5. Role of Staphylococcus aureus coagulase and clumping factor in pathogenesis of experimental endocarditis.
The pathogenic role of staphylococcal coagulase and clumping factor was investigated in the rat model of endocarditis. The coagulase-producing and clumping factor-producing parent strain Staphylococcus aureus Newman and a series of mutants defective in either coagulase, clumping factor, or both were tested for their ability (i) to attach in vitro to either r
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6. Reliability of latex agglutination tests for identification of Staphylococcus aureus resistant to oxacillin.
Commercial latex agglutination tests (LATs) for the simultaneous detection of clumping factor and protein A are gaining increased acceptance as a means of identifying Staphylococcus aureus. We evaluated two LATs (Accu-Staph; Carr-Scarborough, Decatur, Ga.; Staphaurex; Wellcome, Dartford, England) with particular emphasis on their ability to correctly identif
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7. Rapid Detection of Epidemic Strains of Methicillin-Resistant Staphylococcus aureus
Fifty methicillin-resistant Staphylococcus aureus (MRSA) initial isolates obtained from patients hospitalized in the orthopedic clinic of the Frankfurt University Hospital and 150 methicillin-sensitive Staphylococcus aureus (MSSA) isolates were investigated in this study to determine whether the Slidex Staph-Kit is capable of differentiating between MRSA and
American Society for Microbiology.
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8. Quantitative comparison of clumping factor- and coagulase-mediated Staphylococcus aureus adhesion to surface-bound fibrinogen under flow.
The contributions of clumping factor and coagulase in mediating Staphylococcus aureus adhesion to surface-adsorbed fibrinogen have been quantified by using a new methodology and analysis. The attachment or detachment kinetics of bacteria were directly observed in a radial flow chamber with a well-defined laminar flow field and a spatially varying shear rate
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9. Case of Staphylococcus schleiferi Endocarditis and a Simple Scheme To Identify Clumping Factor-Positive Staphylococci
Staphylococcus schleiferi is a coagulase-negative staphylococcus infrequently reported as a human pathogen. We report a case of prosthetic valve endocarditis attributed to this organism, contrast it to another Staphylococcus species that gives similar clumping factor results (S. lugdunensis), and propose a simple, effective identification scheme for identifi
American Society for Microbiology.
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10. Serological Reactions Associated with the Clumping Factor of Staphylococcus aureus
Rotter, Joan (University of Oklahoma Medical Center, Oklahoma City), and Florene C. Kelly. Serological reactions associated with the clumping factor of Staphylococcus aureus. J. Bacteriol. 91:588–594. 1966.—Evidence that the substance which causes staphylococci to clump in the presence of fibrinogen (clumping factor) is antigenically similar in strains w
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11. A novel variant of the immunoglobulin fold in surface adhesins of Staphylococcus aureus: crystal structure of the fibrinogen-binding MSCRAMM, clumping factor A
We report here the crystal structure of the minimal ligand-binding segment of the Staphylococcus aureus MSCRAMM, clumping factor A. This fibrinogen-binding segment contains two similarly folded domains. The fold observed is a new variant of the immunoglobulin motif that we have called DE-variant or the DEv-IgG fold. This subgroup includes the ligand-binding
Oxford University Press.
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12. Localization of bacteriophage receptor, clumping factor, and protein A on the cell surface of Staphylococcus aureus.
The surface of several laboratory strains of Staphylococcus aureus were observed with a scanning electron microscope, and the presence of two morphologically characteristic structures--a ridge separating cell surface into old and new surfaces and a concentric circular structure--are described. These two structures seemed to be present universally on the surf