Sökning: "phospholipase D"

Visar resultat 11 - 15 av 29 avhandlingar innehållade orden phospholipase D.

1. 11. On Cholecystokinin and Phospholipase A2 in Insulin Secretion - an Experimental Study With Reference to the Development of Diabetes

   Författare :Erik Simonsson; Malmö Institutionen för kliniska vetenskaper; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Type 2 Diabetes; Insulin Resistance; Islet; Beta-cell; Insulin Secretion; Ca2 -Dependency; Intracellular Signalling; Phospholipase A2; Cholecystokinin; Non-glucose Secretagogues; Endocrinology; secreting systems; diabetology; Endokrinologi; sekretion; diabetologi;

   Sammanfattning : In view of unsolved issues regarding cellular events underlying the adaptation of insulin secretion to insulin resistance, together with the observation that insulin secretion induced by the gastrointestinal hormone and neuropeptide cholecystokinin (CCK) is not solely explained by phospholipase C-protein kinase C (PLC-PKC) pathway activation, this study aimed at delineate mechanisms responsible for the hyperinsulinemia in insulin resistance, with particular attention paid to the action of glucose vs. non-glucose secretagogues, such as CCK. LÄS MER

3. 12. Development of novel bioanalytical assays with single-molecule readout for biomarker detection and drug candidate characterization

   Författare :Olov Wahlsten; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; QCM-D; biomarker detection; TIRF microscopy.; Bioanalytical assay; spectrofluorometry; fluorescence; single-molecule readout; drug discovery; liposomes;

   Sammanfattning : Bioanalytical assays with single-molecule readout for studying molecular interactions have in the past decades received increasing attention. The high sensitivity often offered by this readout scheme has for example enabled ultra-sensitive analyte detection, having important implications for monitoring early disease progression and the effects of drug treatment. LÄS MER

4. 13. Studies on expression and regulation of phospholipase A2 and cyclooxygenase 2 in gastrointestinal tissues with special reference to colorectal cancer

   Författare :Jan Dimberg; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : The phospholipases A2 (PLA2s) are phospholipid hydrolyzing enzymes that in mammalian cells exist in several different isoform including cytosolic PLA2 (cPLA2), group I PLA2 (PLA2-I) and group II PLA2 (PLA2-ll). PLA2 is involved in production of inflammatory mediators, membrane remodelling, digestive functions and stimulation of prolifemtion. LÄS MER

5. 14. Platelet-activating factor, intestinal epithelial cells, and Chron's disease : An experimental study

   Författare :Bengt Kald; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : Platelet-activating factor (PAF-acethcr, 1-0-alky l-2-acetyl-s n- glycero-3- phosphocholine), is a potent inflammatory mediator that can be formed by a variety of cells and tissues. In the present investigation, the content of PAFacether was determined in mucosal biopsies from the ileum and colon of patients with Crohn's disease and control patients. LÄS MER

7. 15. Leukotriene D4-induced signal transduction in human epithelial cells

   Författare :Eva Grönroos; Else Kay Hoffmann; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : Although the structures of the cysteinyl-leukotrienes have been known for almost twenty years, and their biological effects for almost sixty years, very little is known about the signaling propenies of these compounds. The aim of the present research was to further elucidate the components that are involved in the signaling mechanisms of leukotriene D4 (L TD4) in a human epithelial cell line. LÄS MER