Search for dissertations about: "L-arginine"
Showing result 16 - 20 of 73 swedish dissertations containing the word L-arginine.
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16. Islet constitutive nitric oxide synthase and nitric oxide production. Modulatory effects on insulin and glucagon secretion
Abstract : The aim of this thesis was to elucidate the role of nitric oxide (NO) in the transduction signalling of insulin and glucagon release by stimulating or inhibiting islet endogenous NO-production as well as by using NO donors. Insulin release stimulated by L-arginine, the substrate for constitutive NO-synthase (cNOS)-catalyzed NO-production, was increased by the selective NOS-inhibitor NG-nitro-L-arginine methyl ester (L-NAME) and suppressed by the intracellular NO donor hydroxylamine. READ MORE
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17. Unusual vascular responses in the umbilical artery, mediated by endothelin-like receptors
Abstract : In this present study the population of endothelin-like receptors in the human umbilical artery was examined in vitro in different parts of the umbilical cord. Immunohistochemistry revealed ETB receptors in the endothelium and an uneven distribution of ETA receptors in the smooth muscle of the arterial wall, when comparing different parts of the umbilical artery. READ MORE
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18. Regulation of endothelial transport
Abstract : A major role of endothelial cells is to control the influx of solutes into tissues. The aim of the research presented in this thesis was to gain knowledge about the regulation of endothelial transport in relation to the structure of the endothelial cytoskeleton and to elucidate the possible mechanisms of regulation. READ MORE
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19. Nitric oxide, arginine and acute pancreatitis
Abstract : Acute pancreatitis is a serious inflammatory condition which is managed symptomatically as there is no causal treatment to offer. The main background causes are alcohol abuse and gallstone disease. The inducing factors lead to a premature activation of pancreatic enzymes in the acinar cells and their subsequent release into the pancreatic tissue. READ MORE
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20. Endothelial dysfunction in patients with glucose abnormalities and coronary artery disease : studies of pathogenesis and treatment
Abstract : Background: Type 2 diabetes is associated with endothelial dysfunction, which is characterised by the reduced bioavailability of nitric oxide (NO). This is a result of increased oxidative stress and inflammation and the synthesis of endothelium-dependent vasoconstricting factors such as endothelin-1 (ET-1) caused by hyperglycaemia, insulin resistance and dyslipidemia. READ MORE