Sökning: "transmural potential difference"

Hittade 3 avhandlingar innehållade orden transmural potential difference.

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

    Författare :Ying Sun; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  2. 2. Sensory and secretory responses to intestinal distension; implications for the pathophysiology of the irritable bowel syndrome

    Författare :Marie Larsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :irritable bowel syndrome; secretion; transmucosal potential difference; migrating motor complex; colorectal distension; visceral sensitivity; colitis; enteric nervous system; rat; mouse;

    Sammanfattning : Irritable bowel syndrome (IBS) is a common gut disorder, characterized by abdominal pain and/or discomfort associated with disturbed bowel habits. The pathophysiology of IBS is complex and still largely unknown, although visceral hypersensitivity is frequently associated with the disease. LÄS MER

  3. 3. Global sequence and dispersion of ventricular repolarization: In vivo validation of non-invasive parameters using monophasic action potential mapping technique

    Författare :Yunlong Xia; Kardiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kardiovaskulära systemet; Cardiovascular system; dispersion; electroanatomical mapping; T wave; epicardial pacing; Ventricular repolarization; monophasic action potential;

    Sammanfattning : The purposes are to validate the noninvasive parameters, QT interval, QT dispersion, Tpeak-Tend interval, and the activation recovery time (ART) for estimation of global dispersion of ventricular repolarization (DVR), and to investigate the changes of repolarization sequence and DVR by altered ventricular pacing sites. The material consisted of 12 patients (Study I) and two series healthy pigs with 10 in each (Studies II and III; Studies IV and V). LÄS MER