Virulence factors and in vitro adherence of Enterococcus strains to urinary catheters
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články
PubMed
14976727
DOI
10.1007/bf02993477
Knihovny.cz E-zdroje
- MeSH
- bakteriální adheze * MeSH
- biofilmy MeSH
- Enterococcus faecalis metabolismus patogenita ultrastruktura MeSH
- faktory virulence metabolismus MeSH
- hydrofobní a hydrofilní interakce MeSH
- katetrizace močového měchýře * MeSH
- mikroskopie elektronová rastrovací MeSH
- techniky in vitro MeSH
- virulence MeSH
- zaváděcí katétry mikrobiologie MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- faktory virulence MeSH
The ability to adhere in vitro to urinary catheters and the presence of enterococcal virulence factors was determined in 30 Enterococcus urinary isolates (12 E. faecalis, 12 E. faecium, 3 E. casseliflavus, 3 E. gallinarum). Silicone, siliconized latex and polyvinyl chloride (PVC) were examined by sonication quantitative culture technique and scanning electron microscope. As compared to E. faecalis and E. faecium, E. casseliflavus and E. gallinarum displayed lower adhesion to all synthetic materials. All the tests performed showed higher adherence of all tested strains to siliconized latex and silicone than to PVC. Biofilmforming ability was observed in 5 E. faecalis but in none of the remaining strains. The gene coding enterococcal surface protein (Esp) was detected in 7 E. faecalis and 6 E. faecium strains. Gelatinase was found in 1 E. faecalis, 2 E. faecium and hemolysins were found in 6 E. faecalis and 1 E. faecium strains. All E. casseliflavus and E. gallinarum strainswere negative for these traits. Hydrophobic type of cell surface (measured by its affinity for n-hexadecane) was shown in a few isolates. Bacterial adherence was not significantly associated with the above pathogenic factors.
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