Sökning: "Gram negative bacteria"

Visar resultat 21 - 25 av 236 avhandlingar innehållade orden Gram negative bacteria.

  1. 21. Novel actions of thrombin-derived host defense peptides

    Författare :Finja Hansen; Lund Dermatologi och venereologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Host defense peptides; Thrombin; Monocytes Macrophages; Gram-negative bacteria; LPS; TLR; Phagocytosis; Inflammation; Endocytosis;

    Sammanfattning : Thrombin-derived C-terminal peptides (TCPs) constitute a novel class of immunomodulatory host defense peptides, generated during infection and inflammation. Previous investigations have shown that TCPs of 2-3 kDa inhibit pro-inflammatory immune responses in vitro and in vivo, but their mode of action remained unclear. LÄS MER

  3. 22. Immunity to Salmonella infection

    Författare :Cecilia Johansson; Immunologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; serology; transplantation; Immunologi; serologi; cytokines; antigen presentation; liver; dendritic cells; Salmonella; gram negative bacteria;

    Sammanfattning : The immune system has several strategies to combat infections. The present study investigates various aspects of the interaction between Gram negative bacteria, particularly Salmonella, and antigen presenting cells (APC). Salmonella is an intracellular bacterium infecting mice and man. LÄS MER

  4. 23. Staphylococcus aureus in the infantile bowel flora

    Författare :Erika Lindberg; Göteborgs universitet; []
    Nyckelord :Staphylococcus aureus; intestinal; microflora; superantigen; RAPD; bacteria; infants;

    Sammanfattning : The increasingly hygienic life-style in Western societies may not only have reduced infections, but may also have altered the composition of the commensal microflora, which may, in turn, have predisposed to e.g. allergy development. Here we investigated the first year s intestinal colonization pattern of a Swedish birth-cohort. LÄS MER

  5. 24. Interaction of cyclotides and bacteria : A study of the cyclotide action and the bacterial reaction

    Författare :Sohaib Zafar Malik; Ulf Göransson; Dan Andersson; William Shafer; Uppsala universitet; []
    Nyckelord :Cyclotides; cycloviolacin O2; cycloviolacin O3; cycloviolacin O19; antimicrobial peptide resistance; Salmonella enterica; Eschericia coli; Viola odorata; Farmakognosi; Pharmacognosy;

    Sammanfattning : The growing problem of antibiotic resistance and the lack of promising prospective antibiotics have forced us to search for new classes of antibiotics. Among the candidates to develop into future antibacterials are antimicrobial peptides (AMPs). LÄS MER

  7. 25. Chromosomal β-lactamases in enterobacteria and in vivo evolution of β-lactam resistance

    Författare :Sven Bergström; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Gram negative bacteria; ß-lactamase genes; divergence of neighbouring cperons; ß-lactamase hyperproduction; evolution of control sequences;

    Sammanfattning : The ß-lactam antibiotics are the most important antibacterial agents in the treatment of infectious diseases. A severe problem in ß-lactam therapy is the emergence of ß-lactam resistant bacteria. Clinical ß-lactam resistance is most often due to the production of ß-lactamases. ß-lactamase genes reside either on plasmids or on the chromosome. LÄS MER