Search for dissertations about: "microbial adhesion"

Showing result 21 - 25 of 36 swedish dissertations containing the words microbial adhesion.

  2. 21. Structural and functional studies of streptococcal surface adhesins

    Author : Åsa Nylander; Karina Persson; Maria Selmer; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The oral cavity is home to an array of microorganisms that are associated with dental plaque. Some Gram-positive bacteria are common inhabitants of the oral cavity and in order to colonize such a unique environment adhesion becomes essential and is accomplish by adhesins expressed on the bacterial surface. READ MORE

  4. 22. Studies on glycosphingolipids in infection, immunity and differentiation

    Author : John Benktander; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Glycosphingolipids; Mass spectrometry; Helicobacter pylori BabA; Vibrio cholerae; Human embryonic stem cells; Glycosyltransferase; PX2;

    Abstract : Cell surface glycoconjugates play a role in many biological processes such as responses to microbial infections, cell-cell interactions, differentiation, and inflammatory responses. The present work is focused on structural characterization of glycosphingolipids with potential roles in adhesion of Helicobacter pylori and Vibrio cholerae, differentiation of human pluripotent stem cells, and as blood group determinants. READ MORE

  5. 23. Biochemical studies of carbohydrate blood group antigens - Carbohydrate phenotype in relation to cellular glycosyltranferases

    Author : Mette Diswall; Göteborgs universitet; []
    Keywords : glycosphingolipid; glycosyltransferase; genetic modification; carbohydrate; mass spectrometry; proton NMR spectroscopy; xenotransplantation; GalT-KO pig;

    Abstract : The possibility to alter the cell surface carbohydrate expression by insertion or deletion of glycosyltransferase genes is a powerful technique to study the biological function of selected carbohydrate antigens. However, shifting the equilibrium between competing glycosyltransferases might lead to unexpected phenotypic effects, such as accumulation of other carbohydrate antigens and exposure of antigen structures that normally are cryptic or present in minute amounts on the cell surface. READ MORE

  6. 24. Lactobacillus characterization and effects on oral biofilm composition

    Author : Nelly Romani Vestman; Ingegerd Johansson; Jukka Meurman; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Lactobacillus; L. gasseri; probiotic traits; oral biofilm; breastfeeding; oral microbiota; odontologi; Odontology;

    Abstract : The human body is home for millions of bacteria. The largest microbial community is located in the gastro-intestinal (GI) tract, including the oral cavity with >700 identified taxa. Lactobacillus, which is normal inhabitant of the GI tract, contributes to health by possible biofilm and immune modulation. READ MORE

  7. 25. Activation of human eosinophils by exogenous danger signals

    Author : Lena Svensson; Göteborgs universitet; []
    Keywords : Human eosinophils; danger signals; WKYMVm; bacteria; allergen; chemotaxis; CR3; free oxygen radicals; degranulation; formyl peptide receptor;

    Abstract : Eosinophilic granulocytes are leukocytes that reside in the gastrointestinal and respiratory tracts. Their function in health is unknown. READ MORE