Sökning: "Beta cell"
Visar resultat 11 - 15 av 668 avhandlingar innehållade orden Beta cell.
11. Palmitate-induced Apoptosis in Insulin-producing β-cells
Sammanfattning : Type 2 diabetes is a disease characterized by the inability of pancreatic β-cells to secrete sufficient amounts of insulin to maintain normoglycemia. Increased levels of saturated fatty acids such as palmitate are believed to contribute to β-cell failure and the development of the disease. LÄS MER
12. Oscillatory Signaling and Insulin Secretion from Single ß-cells
Sammanfattning : cAMP and Ca2+ are key regulators of exocytosis in many cells, including insulin-secreting pancreatic β-cells. Glucose-stimulated insulin secretion from β-cells is pulsatile and driven by oscillations of the cytoplasmic Ca2+ concentration ([Ca2+]i), but little is known about the kinetics of cAMP signaling and the mechanisms of cAMP action. LÄS MER
13. Adhesion Dependent Signals : Cell Survival, Receptor Crosstalk and Mechanostimulation
Sammanfattning : The integrin family of cell surface receptors is evolutionary conserved and found in all multicellular animals. In humans 8-alpha and 18-beta integrins are non-covalently associated into 24 dimers. Integrins mediate cell-extracellular matrix and cell-cell interactions and participate in cell signalling. LÄS MER
14. Engraftment of Pancreatic Islets in Alternative Transplantation Sites and the Feasibility of in vivo Monitoring of Native and Transplanted Beta-Cell Mass
Sammanfattning : Islet transplantation is a possible curative treatment for type 1 diabetes (T1D). Currently the liver dominates as implantation site, despite the many challenges encountered at this site.Acute hypoxia in islets transplanted to muscle and omentum, two possible alternative sites, was prevailing. LÄS MER
15. Heparan sulfate dependent cell signaling and associated pathophysiology : Implications in tumorigenesis and embryogenesis
Sammanfattning : Heparan sulfate proteoglycans (HSPGs) consist of a protein core to which several linear, negatively charged heparan sulfate (HS) chains are covalently attached. HSPGs are expressed on the cell surface and in the extra-cellular matrix (ECM) where they have diverse biological functions, for example co-receptor functions. LÄS MER