Sökning: "phosphatidylinositol-3 kinase"

Visar resultat 11 - 15 av 40 avhandlingar innehållade orden phosphatidylinositol-3 kinase.

  1. 11. Lipid Signalling Dynamics in Insulin-secreting β-cells

    Författare :Anne Wuttke; Anders Tengholm; Erik Gylfe; Louis Philipson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ATP; β-cell; diacylglycerol; insulin secretion; oscillations; PtdIns 4 P; PtdIns 4; 5 P2; protein kinase C; P2Y receptor; Medical Cell Biology; Medicinsk cellbiologi;

    Sammanfattning : Certain membrane lipids are involved in intracellular signalling processes, among them phosphoinositides and diacylglycerol (DAG). They mediate a variety of functions, including the effects of nutrients and neurohormonal stimuli on insulin secretion from pancreatic β-cells. LÄS MER

  2. 12. β-adrenergic regulation of glucose transporters

    Författare :Olof Dallner; Tore Bengtsson; Jeffrey Pessin; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; adrenergic receptors; glucose transporters; Physiology; Fysiologi; fysiologi; Physiology;

    Sammanfattning : The transport of glucose across the plasma membrane is a fundamental mechanism to provide cells with its basic requirements for energy yielding processes. It is also vital for clearing glucose from blood into tissues, a process normally stimulated by the hormone insulin in mammals. LÄS MER

  3. 13. Calcium and Phospholipases in Orexin Receptor Signaling

    Författare :Lisa Johansson; Jyrki Kukkonen; Karl Åkerman; Christopher S. Leonard; Uppsala universitet; []
    Nyckelord :Physiology; orexin; receptor; calcium; phospholipase; cell signaling; GPCR; Fysiologi;

    Sammanfattning : The neuropeptides orexin-A and -B act as endogenous ligands for G-protein-coupled receptors (GPCRs) called OX1 and OX2 receptors. Previous observations have established that orexin receptors have an ability to couple to different G-proteins and signaling pathways and induce Ca2+ elevations via both receptor-operated Ca2+ channels (ROCs) and store-operated Ca2+ channels (SOCs). LÄS MER

  4. 14. Structural and Functional Aspects of β1 Integrin Signalling

    Författare :Stina Nilsson; Staffan Johansson; Teet Velling; Maria Fällman; Uppsala universitet; []
    Nyckelord :Cell and molecular biology; Integrin; Integrin subunit β1; Integrin activation; Threonine; Phosphorylation; Integrin signalling; FAK; PI3K; MAPK; Cell- och molekylärbiologi;

    Sammanfattning : Integrins are transmembrane glycoproteins primarily mediating interactions of cells with the extracellular matrix. Each receptor is a complex of one α- and one β-subunit with affinity for a diverse set of ligands. LÄS MER

  5. 15. Regulation of neutrophil apoptosis

    Författare :Maria Alvarado-Kristensson; Malmö Molekylär patologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; General pathology; pathological anatomy; Patologi allmän ; patologisk anatomi; PP2A; p38 MAPK; caspases; signal transduction; inflammation; Apoptosis; human neutrophils;

    Sammanfattning : The human neutrophil is the most abundant granulocyte and the major type of cell involved in an acute inflammatory response. Neutrophils are armed with various systems of enzymes, that can find and kill pathogens, but unfortunately, these "weapons" cannot distinguish between the host tissues and the "invaders. LÄS MER