Sökning: "Virulence factor"
Visar resultat 1 - 5 av 156 avhandlingar innehållade orden Virulence factor.
1. Stress response and virulence in Vibrio anguillarum
Sammanfattning : Bacteria use quorum sensing, a cell to cell signaling mechanism mediated by small molecules that are produced by specific signal molecule synthases, to regulate gene expression in response to population density. In Vibrio anguillarum, the quorum-sensing phosphorelay channels information from three hybrid sensor kinases VanN, VanQ, CqsS that sense signal molecules produced by the synthases VanM, VanS and CqsA, onto the phosphotransferase VanU, to regulate activity of the response regulator VanO. LÄS MER
2. Identification of new virulence factors in Francisella tularensis
Sammanfattning : Francisella tularensis, the causative agent of tularemia, is a highly virulent bacterium with an infection dose of less than ten bacteria. The ability of a pathogen to cause infection relies on different virulence mechanisms, but in Francisella tularensis relatively few virulence factors are known. Two F. LÄS MER
3. The impact of Staphylococcus aureus surface proteins on virulence
Sammanfattning : Staphylococcus aureus is an important pathogen in humans with the potential to cause life-threatening invasive infections, including sepsis and septic arthritis. The pathogenicity of S. aureus depends on the expression of a variety of virulence factors. LÄS MER
4. Platelet activation and tissue factor release in hemolytic uremic syndrome
Sammanfattning : Hemolytic uremic syndrome (HUS) is a clinical syndrome characterized by microangiopathic hemolytic anemia, thrombocytopenia and acute renal failure. There are two subtypes: typical HUS associated with enterohemorrhagic E. coli (EHEC) and atypical HUS associated with uninhibited activation of the alternative pathway of complement. LÄS MER
5. Bacterial virulence or exorbitant host response? On innate immunity against the streptococcal M1 protein
Sammanfattning : Bacterial infection is inevitable throughout a lifetime. What differs between mild andserious infections is the pathogen responsible and how the host immune systemresponds to it. A fundamental role to prevent infection is a proper physical barrier such as the skin and mucosa. LÄS MER