Sökning: "Phagocytosis"

Visar resultat 21 - 25 av 204 avhandlingar innehållade ordet Phagocytosis.

  1. 21. Towards a detailed understanding of the red blood cell storage lesion : and its consequences for in vivo survival following transfusion

    Författare :Andreas Hult; Christer Malm; Per-Arne Oldenborg; Martin L. Olsson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Red blood cell; erythrocyte; transfusion; macrophage; phagocytosis; storage lesion; eryptosis; Class A scavenger receptor; transfusion medicine; transfusionsmedicin;

    Sammanfattning : Red blood cells (RBCs) are vital for oxygen delivery to tissues and constitute the vast majority of all cells in blood. After leaving the red bone marrow as mature cells, RBCs have a lifespan of approximately 120 days before they are removed from the circulation by macrophages, mainly in the spleen and liver. LÄS MER

  3. 22. The involvement of calcium and membrane fusion events in neutrophil secretion and respiratory burst

    Författare :Daniel Granfeldt; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; neutrophils; calcium; regulated secretion; membrane fusion; SOC; arachidonic acid; intracellular fusion; oxygen free radicals; phagocytosis;

    Sammanfattning : Neutrophil granulocytes play an important role in host defence during the early stages of microbial infection. The neutrophils have to leave the blood stream and migrate out into the tissue where they are able to phagocytose and kill microbes as well as dispose of cell debris from damaged tissues. LÄS MER

  4. 23. 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

  5. 24. The adenoid defender of the nasopharynx. A study of the cells in the surface secretion in the nasopharynx

    Författare :Magnus Ivarsson; Göteborgs universitet; []
    Nyckelord :Adenoid; nasopharynx; leukocytes; surface secretion; ELISPOT; phagocytosis;

    Sammanfattning : The adenoid is implicated in the pathogenesis of upper airway infections (UAI), but in a not yet understood way. In contrast to the adenoid tissue, the surface secretion on the adenoid, which contains not only pathogenic bacteria and viruses but also leukocytes, has attracted little interest. LÄS MER

  7. 25. Epidemiological and immunological studies of environmental mycobacteria - with focus on Mycobacterium abscessus

    Författare :Bodil Jönsson; Göteborgs universitet; []
    Nyckelord :Bacteriology; Immunology; Epidemiology; Mycobacteria; Mycobacterium abscessus; Colony morphology; Mycobacterial lipids; Cystic fibrosis; PFGE; Human PBMC; Cytokine; Phagocytosis;

    Sammanfattning : Mycobacterium avium, M. abscessus and M. gordonae are three mycobacterial species that are ubiquitous in the environment. M. LÄS MER