Sökning: "arteries"

Visar resultat 21 - 25 av 367 avhandlingar innehållade ordet arteries.

  1. 21. On receptor changes in cerebral arteries after subarachnoid haemorrhage

    Författare :Jacob Hansen-Schwartz; Lund Medicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pharmacognosy; pharmacy; toxicology; Farmakologi; farmakognosi; farmaci; toxikologi; Pharmacological sciences; subarachnoid haemorrhage; reverse transcriptase polymerase chain reaction; in vitro pharmacology; organ culture; Endothelin receptors; 5-HT receptors;

    Sammanfattning : Overall the aim has been to characterise the in vitro upregulation of the 5-hydroxytryptamine 1B/1D (5-HT(1B/1D)) and endothelin (ET) receptors in the cerebral circulation as well as demonstrating phenotypic changes in a pathophysiological model mimicking subarachnoid haemorrhage. The first part describes receptor upregulation using organ culture of whole vessel segments from both rat and man. LÄS MER

  3. 22. Consequences of Arterial Switch Operation in Children Born with Transposition of the Great Arteries

    Författare :Cecilia Falkenberg; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Transpositon of the great arteries; arterial switch operation; autonomous nerves system; norepinephrine; heart rate variability; cardiopulmonary bypass; piglets;

    Sammanfattning : Abstract Background: The introduction of the arterial switch operation (ASO) made it the procedure of choice for surgical correction of transposition of the great arteries. A majority of the sympathetic nerves innervate the heart alongside the great vessels; these are therefore likely to be damaged during the surgical procedure; imposing new challenges and questions that need to be addressed. LÄS MER

  4. 23. Goal Function Approach to Growth and Remodeling of Arteries

    Författare :Ganarupan Satha; Anders Klarbring; Stefan B. Lindström; Jonas Stålhand; Håkan Johansson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : In this thesis we develop a new goal function approach to investigate stability of the growth processes in blood vessels and cost-optimal composition and geometry of these vessels. In the vascular system of a healthy individual, the living composition of the arterial wall must regenerate and remodel continuously during the entire lifetime to maintain itself. LÄS MER

  5. 24. A study of potassium channel activation as a pharmacological principle for vasodilation of cerebral blood vessels

    Författare :Torsten Ryman; Avdelningen för klinisk kemi och farmakologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacological sciences; cerebral arteries; Cerebral ischemia; Potassium channel openers; vascular endothelium; EDHF; KRN2391; KATP; Pinacidil; pharmacognosy; pharmacy; toxicology; Farmakologi; farmakognosi; farmaci; toxikologi;

    Sammanfattning : Increasing [K+]o is intimately coupled to progressive ischemia and reduced CBF. In isolated cerebral and mesenteric arteries, it was found that significant differences in the vascular responses to [K+]o exist. Among the species studied, human cerebral arteries were the most sensitive artery to increasing [K+]o. LÄS MER

  7. 25. Small artery dysfunction : focus on preeclampsia and end-stage renal disease

    Författare :Natallia Luksha; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :resistance arteries;

    Sammanfattning : Background: End-stage renal disease (ESRD) and preeclampsia (PE) are associated with high risk of cardiovascular events and characterized by endothelial dysfunction. Resistance arteries are actively involved in the control of blood pressure and blood flow to the target organs. LÄS MER