Search for dissertations about: "pancreatic β-cells"

Showing result 31 - 35 of 104 swedish dissertations containing the words pancreatic β-cells.

  2. 31. Assessment of pancreatic islet cell function and survival

    Author : Martin Köhler; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Function and survival of pancreatic islet insulin-producing beta-cells (β-cells) and glucagonproducing alpha-cells (α-cells) were studied, and methods for this purpose were developed or refined. Dynamic control of glucose metabolism is essential for β-cell stimulus-secretion coupling. READ MORE

  4. 32. Role of inositol pyrophosphates in pancreatic beta cell function

    Author : Subu Surendran Rajasekaran; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Inositol pyrophosphates are high energy diphosphate containing molecules that are ubiquitous in eukaryotic cells. They have been implicated in diverse cellular processes ranging from DNA repair, telomere length regulation, ribosome synthesis, cell cycle regulation and apoptosis to osmoregulation, phosphate homeostasis, insulin sensitivity, vesicle trafficking, cytoskeletal rearrangement and exocytosis. READ MORE

  5. 33. The impact of glucotoxicity on pancreatic β-cell function

    Author : Sarheed Jabar Muhammed; Islet cell physiology; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cAMP PKA system; iNOS; Type 2 diabetes; GSIS; PDE; GK rat; ZDF fa fa rat; GPR40; VDAC1; VDAC2; GSK-3β; ChREBP; TXNIP; resveratrol.;

    Abstract : Type 2 diabetes mellitus is connected with elevated plasma glucose levels which negatively influence β-cells and cause impaired glucose-stimulated insulin secretion (GSIS). The aim of present thesis was to investigate the impact of long-term hyperglycemia on the pancreatic islet β-cell function. READ MORE

  6. 34. Investigations of Strategies to Counteract Proinflammatory Cytokines in Experimental Type 1 Diabetes

    Author : Andreas Börjesson; Stellan Sandler; Annika Carlsson; Jens Nielsen; Uppsala universitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Type 1 diabetes; proinflammatory cytokines; SOCS-3; pancreatic islets; inducible nitric oxide synthase; insulin secretion; NOD mice; islet transplantation; proinsulin conversion; streptozotocin; prolactin; Medicine; Medicin;

    Abstract : Type 1 diabetes (T1D) is a chronic autoimmune disease targeted against the pancreatic β-cells. Proinflammatory cytokines are considered to play a major role in the destruction of the insulin-producing β-cells. This thesis studied strategies to counteract proinflammatory cytokines in experimental T1D. READ MORE

  7. 35. Regulation of cytokine-induced nitric oxide production in insulin-producing cells

    Author : Malin Flodström; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; Diabetes; pancreatic islets; insulin-producing cells; cytokines; nitric oxide; inducible nitric oxide synthase; nuclear factor-kappaB; interferon regulatory factor-1; arginine; citrulline; argininosuccinate synthetase; insulin release; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

    Abstract : Cytokine-induced expression of the inducible form of nitric oxide synthase (iNOS) and production of nitric oxide (NO) may contribute to pancreatic β-cell damage during the development of type 1 diabetes. iNOS catalyses the conversion of arginine into citrulline and NO, a reaction regulated by the amount of expressed iNOS enzyme and by the cellular availability of arginine. READ MORE