Sökning: "oral flora"

Visar resultat 16 - 20 av 27 avhandlingar innehållade orden oral flora.

  1. 16. Structural and functional studies of streptococcal surface adhesins

    Författare :Åsa Nylander; Karina Persson; Maria Selmer; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : 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. LÄS MER

  3. 17. Nitrate, Nitrite and Nitric Oxide in Gastric Mucosal Defense

    Författare :Joel Petersson; Lena Holm; Jon Lundberg; Mia Phillipson; Matthew Grisham; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dietary nitrate; mucus gel layer; mucosal blood flow; mucus thickness; laser-Doppler flowmetry; mucosal damage; intra-vital microscopy; mucosal permeability; Physiology; Fysiologi;

    Sammanfattning : The human stomach normally contains high levels of bioactive nitric oxide (NO). This NO derives from salivary nitrate (NO3-) that is converted to nitrite (NO2-) by oral bacteria and thereafter non-enzymatically reduced in the acidic gastric lumen to NO. LÄS MER

  4. 18. Intestinal IgA synthesis: Localization and requirements for IgA class switch recombination

    Författare :Peter Bergqvist; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; IgA; Intestine; Gut associated lymphoid tissue; class switch recombination; CD40; germ free;

    Sammanfattning : Production of IgA at mucosal surfaces is one of the most striking features of the mucosal immune system. Despite that IgA was first discovered in the 1950’s and secretory IgA described in gut secretions and breast milk in the mid 1960’s we still have limited information about the sites and exact requirements for IgA class switch recombination. LÄS MER

  5. 19. Origin of intraradicular infection with Enterococcus faecalis in endodontically treated teeth

    Författare :Roberto Vidana; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The reported prevalence of Enterococcus faecalis, both a commensal of the gastro-intestinal tract and a common nosocomial pathogen, ranges from 24% to 77% in post-treatment root canal infections. To date it has not been possible to explain this prevalence, since its origin remains unknown. LÄS MER

  7. 20. Peri-implantitis : treatment and effects of enamel matrix derivative

    Författare :Catrine Isehed; Pernilla Lundberg; Anders Holmlund; Leif Jansson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; implant; peri-implantitis; bone regeneration; enamel matrix derivative; surgical treatment; proteome; bone marrow macrophages; osteoclast formation; bone resorption; odontologi; Odontology;

    Sammanfattning : Biological complications affecting osseointegrated dental implants are a growing treatment problem in clinical practice. Since the number of implant carriers has increased in recent decades, this is an urgent topic in dentistry. LÄS MER