Sökning: "phosphodiesterases"
Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet phosphodiesterases.
1. Cyclic nucleotide signalling systems in vascular smooth muscle cells and immune system cells with special reference to phosphodiesterases PDE3 and PDE4
Sammanfattning : The cyclic nucleotide signalling systems are important in vascular smooth muscle and in the immune system, and are of interest from a pharmacological point of view. Drugs which interfere with the cyclic nucleotide levels have profound effects on heart, blood vessels and airways and have actual or potential use in several important diseases, such as heart failure, hypertension, arteriosclerosis, asthma and autoimmune diseases. LÄS MER
2. Applications of microdialysis in studies of the adrenergic regulation of lipolysis in human skeletal muscle and adipose tissue
Sammanfattning : Lipolysis, i.e., hydrolysis of triaeylglycerol to free fatty acids and glycerol, is a central process in lipid metabolism, and the regulation of lipid metabolism is altered in several common disorders, such as diabetes, obesity and atherosclerosis. LÄS MER
3. The Role of Phosphodiesterase 3B in the Regulation of Insulin Secretion
Sammanfattning : Pancreatic beta-cell dysfunction and insulin resistance are the two hallmarks of type 2 diabetes. An early sign of beta-cell dysfunction is impaired nutrient-induced insulin release. Several insulin secretagogues act by increasing the formation of intracellular cAMP. LÄS MER
4. Pharmacological evaluation of the NO/cGMP signalling system
Sammanfattning : Platelet activation and inhibition are tightly balanced processes, regulated by various endogenous molecules. In this regard, the endothelium plays a key role in mediating inhibition of platelets by releasing nitric oxide (NO) and cAMP-elevating prostaglandins. LÄS MER
5. Studies of cAMP and Ca2+ signaling in pancreatic islet cells
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