Sökning: "Virulence factors"

Visar resultat 11 - 15 av 258 avhandlingar innehållade orden Virulence factors.

  1. 11. Epidemiology of Enterococci with Acquired Resistance to Antibiotics in Sweden : Special emphasis on Ampicillin and Vancomycin

    Författare :Erik Torell; Mats Kallin; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Communicable diseases; Antimicrobial resistance; enterococci; epidemiology in Sweden; intra-hospital spread; shedding; risk-factors; infection; colonization; virulence factors; ARE; VRE; Php; PFGE; esp; gyrA; parC; Infektionssjukdomar; Infectious diseases; Infektionssjukdomar; infektionssjukdomar; Infectious Diseases;

    Sammanfattning : The first hospital outbreak of vancomycin-resistant enterococci (VRE) and carriage rates of VRE and ampicillin-resistant enterococci (ARE) in Sweden were investigated. Clonal relationships and mutations in fluoroquinolone resistance determining regions among ARE collected nation-wide were studied. LÄS MER

  3. 12. Controlling virulence in Yersinia pseudotuberculosis through accumulation of phosphorylated CpxR

    Författare :Edvin Thanikkal; Matthew Francis; Andrew Darwin; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Y. pseudotuberculosis; CpxA; CpxR; invasin; RovA; RovM; T3SS; virulence; transcriptional regulation; molekylärbiologi; Molecular Biology; mikrobiologi; Microbiology;

    Sammanfattning : Like many Gram-negative bacteria, the food-borne pathogen Yersinia pseudotuberculosis harbours different regulatory mechanisms to maintain an intact bacterial envelope especially during exposure to extracytoplasmic stress (ECS). The CpxA-CpxR two component regulatory system is one such ECS-responsive regulatory mechanism. LÄS MER

  4. 13. RNA-mediated virulence gene regulation in the human pathogen Listeria monocytogenes

    Författare :Edmund Loh; Jörgen Johansson; Nancy Freitag; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Listeria monocytogenes; virulence; ncRNAs; PrfA; 5´-UTRs; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : The Gram-positive human pathogen Listeria monocytogenes uses a wide range of virulence factors for its pathogenesis. The majority of its virulence genes are encoded on a 9-kb pathogenicity island and are controlled by the transcriptional activator PrfA. LÄS MER

  5. 14. Genotypic and phenotypic characterization of Porphyromonas gingivalis in relation to virulence

    Författare :Takashi Yoshino; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Porphyromonas gingivalis; Phenotype; Genotype; Virulence; Periodontitis;

    Sammanfattning : The present thesis was designed to increase the knowledge on the role of pathogenic potential of Porphyromonas gingivalis as a putative periodontal pathogen. P. LÄS MER

  7. 15. Meticulous control of the T3SS of Yersinia is essential for full virulence

    Författare :Ann-Catrin Björnfot; Hans Wolf-Watz; Kelly T. Hughes; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Yersinia; type III secretion; YscU; substrate specificity switch; heat shock proteins; VagH; methyltransferase; virulence; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : The type III secretion system (T3SS) of pathogenic Yersinia pseudotuberculosis is involved in virulence. The syringe-like secretion system spans both bacterial membranes and is responsible for the ability of Yersinia to transfer toxic proteins (Yop proteins) into the eukaryotic target cell. LÄS MER