Molecular Virulence Markers in Staphylococcus aureus and Pseudomonas aeruginosa
Author Information
Author(s): Cotar Ani-Ioana, Chifiriuc Mariana-Carmen, Dinu Sorin, Bucur Marcela, Iordache Carmen, Banu Otilia, Dracea Olguta, Larion Cristina, Lazar Veronica
Primary Institution: National Institute for Research in Microbiology and Immunology, Cantacuzino, Bucharest, Romania
Hypothesis
The study aims to characterize the molecular markers of virulence in S. aureus and Ps. aeruginosa strains isolated from different clinical specimens.
Conclusion
All studied S. aureus and Ps. aeruginosa strains possess several virulence determinants that contribute to the clinical evolution of different infectious processes.
Supporting Evidence
- 15 virulence genes were detected in S. aureus and 7 in Ps. aeruginosa strains.
- All S. aureus strains possess genes encoding adhesins and toxins.
- Ps. aeruginosa strains possess genes for elastase, alkaline protease, and phospholipases.
Takeaway
Researchers looked at germs that can make people sick and found that they have special traits that help them cause infections.
Methodology
Multiplex and uniplex PCR assays were used to detect genes encoding different virulence factors in the bacteria.
Limitations
The study does not address the in vivo significance of different virulence profiles.
Participant Demographics
Strains were isolated from patients hospitalized in Fundeni Hospital, Bucharest, between 2005–2007.
Digital Object Identifier (DOI)
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