Sökning: "Intraluminal"

Visar resultat 1 - 5 av 39 avhandlingar innehållade ordet Intraluminal.

  1. 1. Experimental and Clinical Necrotizing Enterocolitis

    Författare :Niclas Högberg; Heléne Engstrand Lilja; Agneta Nordenskjöld; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Necrotizing; Enterocolitis; Ischemia; Microdialysis; Intraluminal; I-FABP; Kirurgi; särskilt barnkirurgi; Pediatric Surgery;

    Sammanfattning : Necrotizing enterocolitis (NEC), a severe inflammatory disorder of the gastrointestinal tract with high morbidity and mortality, affects primarily preterm infants. The diagnosis represents a challenging task, and no biomarker has been found to aid early diagnosis with high accuracy. LÄS MER

  2. 2. Modeling of Intraluminal Surfaces of Thoracic Aortas

    Författare :Johan Bondesson; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; ENGINEERING AND TECHNOLOGY; MEDICAL AND HEALTH SCIENCES; MEDICAL AND HEALTH SCIENCES; aneurysm; TEVAR; bird-beaking; cardiac pulsatility; geometric modeling; surface curvature; endograft; stereolithographic surface; dissection; Thoracic aorta;

    Sammanfattning : Vascular diseases are getting more and more common as a result of modern-day lifestyle and the fact that the population is getting older. One of the newest treatments for vascular diseases such as aneurysms and dissections is endovascular repair with endografting. LÄS MER

  3. 3. Significance of intraluminal thrombus in abdominal aortic aneurysm

    Författare :Maggie Folkesson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Sammanfattning : Most AAAs contain an intraluminal thrombus (ILT) and the volume of the ILT correlates with aneurysm size. The thrombus-covered wall is a common site for rupture after bleeding into the ILT. The hypothesis for this thesis was generated when Kazi et al discovered differences in AAA wall between ILT covered and ILT free aortic wall. LÄS MER

  4. 4. Methodological studies of eicosanoid enzyme gene expression in vascular endothelium exposed to biomechanical stress

    Författare :Roya Doroudi; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prostanoids; endothelium; quantitative RT-PCR; perfusion model; shear stress; intraluminal pressure; immediate-early genes;

    Sammanfattning : Prostaglandins are the major eicosanoids synthesized by vascular endothelial cells, and the vasculature is an important target organ for their bioactive metabolites. In vitro studies have shown that biomechanical forces are important regulators of vascular expression of prostanoid enzymes and release of metabolites. LÄS MER

  5. 5. Effects of Biomechanical Stress on Gene Regulation in Vascular Cells

    Författare :Maria Carlström; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :shear stress; intraluminal pressure; endothelium; gene expression; DNA microarray; real-time RT-PCR; reference genes; smooth muscle cells; P2 receptors; TNF-alpha; urokinase-type plasminogen activator;

    Sammanfattning : The vascular vessel wall is constantly exposed to biomechanical forces, such as shear and tensile stress. Biomechanical forces are important for several physiological and pathological processes and have been shown to regulate a number of fundamental vascular functions, such as vascular tone and remodeling processes. LÄS MER