Search for dissertations about: "L- NNA"

Showing result 1 - 5 of 10 swedish dissertations containing the words L- NNA.

  2. 1. Gastrointestinal mucosal protective mechanisms : Mudolatory effects of Heliobacter pyroli on the gastric mucus gel barrier and mucosal blood flow in vivo

    Author : Christer Atuma; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology and anatomy; mucus gel layer; mucosal blood flow; mucus thickness; chronic infection; rat; platelet activating factor; mast cell; nitric oxide; nitric oxide synthase; ketotifen; intra-vital microscopy; microelectrode; laser-Doppler flowmetry; L-NNA; Fysiologi och anatomi; Physiology and pharmacology; Fysiologi och farmakologi; Physiology; fysiologi;

    Abstract : The gastrointestinal mucus gel layer and blood flow are two important mechanisms for protection at the pre-epithelial and sub-epithelial levels, respectively. Helicobacter pylori might circumvent these mechanisms and elicit a chronic inflammatory response with consequent ulcers in the stomach and duodenum. READ MORE

  4. 2. Endothelin and nitric oxide in coronary vascular regulation with special reference to myocardial ischemia/reperfusion injury

    Author : Qing-Dong Wang; Karolinska Institutet; Karolinska Institutet; []
    Keywords : endothelium; endothelin; myocardial ischemia; myocardial infarction; reperfusion; L-arginine; nitric oxide.;

    Abstract : The vascular endothelium plays an important role in the regulation of cardiovascular function by producing bioactive substances such as nitric oxide (NO) and endothelin-I (ET- 1). Recent evidence has revealed that endothelial dysfunction is closely related to myocardial ischemia/reperfusion injury. READ MORE

  5. 3. The influence of nitric oxide and cholecystokinin on tissue homeostasis in exocrine pancreas : an experimental study in rats

    Author : Lena Trulsson; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Growth of the pancreas is stimulated by cholecystokinin (CCK) in rats. Nitric oxide (NO), which is synthesized from the amino acid L-arginine by NO-synthases (NOS), interferes with CCK in modulating the pancreatic secretion. READ MORE

  6. 4. Neural control of colonic epithelial transport, motility and permeability in vivo. An experimental study in anaesthetized rats

    Author : Ying Sun; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; enteric nervous system; colonic motility; transmural potential difference; net; fluid transport; permeability; bile acid; nitric oxide; inflammatory bowel disease;

    Abstract : Colonic dysfunction may result in diarrhoea, abdominal pain or constipation, andinflammatory bowel disease, bile acid malabsorption and particularly irritable bowelsyndrome are very common disorders. The role of the enteric nervous system (ENS) inthese diseases is largely unknown. READ MORE

  7. 5. The importance of nitric oxide bioavailability and endothelial mechanisms for cardioprotection by pharmacological intervention during myocardial ischaemia and reperfusion

    Author : Andrey Gourine; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ATP sensitive K channels; endothelin-1; clevidipine; ETA receptor antagonist; glibenclamide; 5-hydroxydecanoic acid; infarct size; ischaemia; myeloperoxidase; nitric oxide; nitric oxide synthase; pig; preconditioning; rat; reperfusion.;

    Abstract : Myocardial ischaemia initiates complex severe cellular changes and, after a critical time period, myocardial cell death. Despite that restitution of coronary blood flow is an absolute pre-requisite for tissue survival, myocardial reperfusion per se will also increase irreversible damage in the jeopardised myocardium. READ MORE