Sökning: "Ca2 release"

Visar resultat 1 - 5 av 179 avhandlingar innehållade orden Ca2 release.

  1. 1. Oscillatory Ca2+ signaling in glucose-stimulated murine pancreatic β-cells : Modulation by amino acids, glucagon, caffeine and ryanodine

    Författare :Meftun Ahmed; Per Lindström; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; pancreatic β-cells; islets of Langerhans; glucose; Ca2 oscillations; Ca2 transients; potassium; ryanodine; caffeine; glucagon; cAMP; inositol 1; 4; 5-trisphosphate; fura-2; glycine; alanine; arginine; Ca2 channels; rats; lean mice; ob ob mice; leptin; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

    Sammanfattning : Oscillations in cytoplasmic Ca2+ concentration ([Ca2+]i) is the key signal in glucose-stimulated β-cells governing pulsatile insulin release. The glucose response of mouse β-cells is often manifested as slow oscillations and rapid transients of [Ca2+] i. LÄS MER

  3. 2. Roles of voltage-gated Ca2+ channel subunits in pancreatic β cells

    Författare :Abdulla S. Kazim; Diabetes - öpatofysiologi; []
    Nyckelord :diabetes; Type 2 diabetes T2D ; Ca2 ; Ca2 channels; subunits;

    Sammanfattning : Hallmarks of type 2 diabetes (T2D) include elevated blood glucose and free fatty acids (FFAs) as a result of impaired β cell insulin secretion and decreased β cell mass. The glucose-stimulated insulin secretion (GSIS) in β cells is triggered by depolarization-evoked Ca2+ entry through voltage-gated Ca2+ (CaV) channels. LÄS MER

  4. 3. Ca2+ signalling in the pancreatic ß-cell : studies of the mechanisms for intracellular release and sequestration of Ca2+

    Författare :Per-Eric Lund; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  5. 4. Studies of cAMP and Ca2+ signaling in pancreatic islet cells

    Författare :Hongyan Shuai; Anders Tengholm; Erik Gylfe; Sebastian Barg; Albert Salehi; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pancreatic islet; insulin; glucagon; somatostatin; pancreatic polypeptide; exendin- 9-39 ; GLP-1; GIP; ATP; adenosine; cAMP; Ca2 ; β-cell; α-cell; δ-cell; PP-cell;

    Sammanfattning : The blood glucose-lowering and -elevating hormones insulin and glucagon are released from the pancreatic islet β- and α-cells, respectively. The intracellular messengers Ca2+ and cAMP have central roles in controlling the secretion of both hormones, but the underlying mechanisms are incompletely understood. LÄS MER

  7. 5. The Role of Protein Kinase C in the Extracellular Ca2+-regulated Secretion of Parathyroid Hormone

    Författare :Amos M. Sakwe; Lars Rask; Claes Juhlin; Uppsala universitet; []
    Nyckelord :Medical sciences; parathyroid hormone; Ca2 ; protein kinase C; calcium sensing receptor; ERK1 2; biosynthesis; secretion; MEDICIN OCH VÅRD; MEDICINE; MEDICIN;

    Sammanfattning : Parathyroid hormone (PTH) is the major physiological regulator of the extracellular Ca2+ concentration ([Ca2+]o) in the body. The secretion of this hormone is suppressed at high [Ca2+]o. LÄS MER