Sökning: "H. influenzae"

Visar resultat 21 - 25 av 42 avhandlingar innehållade orden H. influenzae.

  1. 21. Synthesis of phosphate-containing oligosaccharides corresponding to capsular antigen structures from Haemophilus influenzae

    Författare :Jonas Hansson; J.S Brimacombe; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Sammanfattning : This thesis describes the synthesis of spacer-equipped di- and trimeric oligosaccharide structures corresponding to fragments of the capsular polysaccharides of Haemophilus influenzae types c and f. Both of these polysaccharides are of the teichoic acid type, built up by disaccharide repeating units linked via interglycosidic phosphodiester bonds. LÄS MER

  3. 22. Structural studies of lipopolysaccharides expressed by non-typeable Haemophilus influenzae and Haemophilus parainfluenzae strains

    Författare :Varvara Vitiazeva; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The present thesis describes lipopolysaccharide (LPS) structures expressed by non-typeable Haemophilus influenzae and Haemophilus parainfluenzae strains. LPS is a major surface component of Gram-negative bacteria. LÄS MER

  4. 23. Structural and genetic characterization of lipopolysaccharides extracted from disease causing non-typeable Haemophilus influenzae strains

    Författare :Mikael Engskog; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : This thesis deals with the structure and genetic blueprint of lipopolysaccharides (LPS) expressed by the Gram-negative bacterium Haemophilus influenzae (H.influenzae). H. influenzae is an opportunistic pathogen that regularly colonizes the upper respiratory tract and exists in encapsulated (typeable) or nonencapsulated (non-typeable) forms (NTHi). LÄS MER

  5. 24. Bacterial Outer Membrane Vesicles. Mediators of virulence and antibiotic resistance

    Författare :Viveka Schaar; Malmö Klinisk mikrobiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Antibiotic resistance; Moraxella catarrhalis; epithelial cells; beta-lactamase; non-typeable Haemophilus influenzae; outer membrane vesicles; polymicrobial infections; UspA1;

    Sammanfattning : Outer membrane vesicles (OMV) have the size of nanoparticles and are released from the outer membrane of most Gram-negative bacteria. The OMV reflect the composition of the bacterial outer membrane, including lipids and virulence factors specific for the pathogen, and are involved in pathogenesis and bacterial survival. LÄS MER

  7. 25. Nasopharynx and mucosa associated lymphatic tissue : studies on mucosal immunity, nasopharyngeal colonization with non-encapsulated non-typable Haemophilus influenzae and local administration of immunoglobulin in the upper respiratory tract

    Författare :Karin Lindberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Nasopharyngeal colonization with non-encapsulated Haemophilus influenzae (NTHI) frequently occurs in infants and in adults with common variable immunodeficiency (CVID), but is rarely found among healthy adults. In children with recurrent episodes of acute otitis media (RAOM), NTHI is more common than in healthy individuals. LÄS MER