Sökning: "bacterial pathogenesis"

Visar resultat 11 - 15 av 146 avhandlingar innehållade orden bacterial pathogenesis.

  1. 11. Importance of bacterial hydrogen sulfide in the pathogenesis of periodontal diseases

    Författare :Amina Basic; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hydrogen sulfide; Periodontitis; Gingivitis; IL-1β; IL-18; NLRP3 inflammasome; Oral microbiota; Fusobacterium spp.; Bismuth test; L-cysteine;

    Sammanfattning : Hydrogen sulfide (H2S) is one of many end-products of the proteolytic activities in the subgingival microbiota in patients with periodontal diseases, such as gingivitis and periodontitis. Although H2S is generally regarded as toxic, the mechanisms that underlie its production and its effects on human cells and tissues are poorly understood. LÄS MER

  3. 12. Bacterial adaption to novel selection pressures

    Författare :Annika Nilsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Evolution; bacterial adaptation; mutation rate; population size; mutation accumulation; fitness; antibiotic resistance; compensation; genetic drift; genome reduction;

    Sammanfattning : The rates and trajectories of bacterial evolution are determined both by microbial factors and environmental parameters. In this thesis 1 have investigated how bacterial mutation rates and selection pressure affect the rate and extent of adaptation to novel environments. LÄS MER

  4. 13. Urinary tract infection : pathogenesis and complications

    Författare :Olof Hertting; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Urinary tract infections (UTI) are one of the most common infections in women and children worldwide. If not diagnosed and treated appropriately, it may lead to severe illness and long-term complications. The economic impact caused by UTI on society is significant. In addition, bacterial resistance to common antibiotics is spreading at a high rate. LÄS MER

  5. 14. Helicobacter pylori : cellular interactions and pathogenesis

    Författare :Britta Björkholm; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Helicobacter pylori colonizes the stomachs of about half of die world's population. It inevitably causes an inflammatory response in all its hosts, but in a subset of individuals the infection leads to severe gastric diseases such as peptic ulcers, gastric cancer or MALT lymphoma. LÄS MER

  7. 15. Staphylococcus aureus : aspects of pathogenesis and molecular epidemiology

    Författare :Lisa Stark; Per-Eric Lindgren; Sture Löfgren; Erik Kihlström; Jan Strindhall; Andreas Matussek; Johanna Ericson Sollid; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Staphylococcus aureus is a human commensal colonizing about 30 per cent of the population. Besides, it is a frequent cause of infections such as skin, wound and deep tissue infections and also more life-threatening conditions such as pneumonia, endocarditis and septicaemia. S. aureus may also cause different toxicoses. LÄS MER