Sökning: "Type 1 fimbriae"

Visar resultat 11 - 15 av 20 avhandlingar innehållade orden Type 1 fimbriae.

  1. 11. Pathogenecity-associated genes modulate Escherichia coli adhesion and motility

    Författare :Annika E. Sjöström; Bernt Eric Uhlin; Ann-Beth Jonsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : Escherichia coli strains typical of UPEC (uropathogenic E. coli) and NBM (newborn meningitis) isolates carry chromosomally located PAIs (pathogenicity islands) that are absent in non-pathogenic E. coli strains. The PAIs include genes for virulence factors such as toxins and genes coding for specific adhesins and pili/fimbriae formation. LÄS MER

  3. 12. Colonization, persistence and virulence factors in Escherichia coli strains in the human intestinal microflora

    Författare :Forough Nowrouzian; Göteborgs universitet; []
    Nyckelord :Escherichia coli; large intestine; infant; newborn; bacterial adhesins; hemolysins;

    Sammanfattning : Escherichia coli is a member of the normal intestinal microflora of man and many animals. In this thesis, various aspects of the E. coli colonization pattern were studied, especially the role of so called virulence factors for persistence of E. coli in the gut microflora. LÄS MER

  4. 13. Characterization of Escherichia coli colonizing the gastrointestinal tract and urinary tract catheters

    Författare :Xiaoda Wang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Commensal and pathogenic bacteria express biofilm behaviour which is thought to alter bacteria-host interactions and contribute to colonization and persistence. In the current thesis, the epidemiology of biofilm formation in gastrointestinal commensal Escherichia coli and E. coli isolated from urinary catheters is described. LÄS MER

  5. 14. Modulaton of gene expression in human aortic smooth muscle cells by Porphyromonas gingivalis : a possible association between periodontitis and atherosclerosis

    Författare :Boxi Zhang; Torbjörn Bengtsson; Allan Sirsjö; Hazem Khalaf; Julia Davies; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microarray; Angiopoietin; Smooth muscle cells; TNF; Periodontitis; Atherosclerosis; Porphyromonas gingivalis; Cancer; Inflammasome; Biomedicin; Biomedicine;

    Sammanfattning : Porphyromonas gingivalis is a gram-negative, rod-shaped, and anaerobic bacterium that is involved in the pathogenesis of periodontitis. P. gingivalis produces a variety of virulence factors including gingipains and fimbriae. LÄS MER

  7. 15. Adhesion-related interactions of Actinomyces and Streptococcus biofilm bacteria

    Författare :Mirva Drobni; Nicklas Strömberg; Karl-Eric Magnusson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; biofilm; Actinomyces; Streptococcus; adhesion; Cariology; Cariologi;

    Sammanfattning : Adhesion of bacteria is a key event in biofilm formation and is mediated by bacterial adhesins recognising host or bacterial partner receptors. In oral biofilm formation, primary Actinomyces and Streptococcus colonizers adhere to salivary pellicle proteins such as proline-rich proteins (PRPs) as well as to mucosal surfaces. LÄS MER