Sökning: "Intraluminal"

Visar resultat 21 - 25 av 41 avhandlingar innehållade ordet Intraluminal.

  1. 21. Mechanosensing in the vascular wall - the role of cellular microdomains in vascular remodeling

    Författare :Sebastian Albinsson; Kärlfysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; tissue culture; Histologi; cytokemi; histokemi; vävnadskultur; cytochemistry; histochemistry; wall stress; shear stress; hypertension; Histology; differentiation; growth; caveolin; smooth muscle; actin; Fysiologi; Cardiovascular system; Kardiovaskulära systemet;

    Sammanfattning : The vascular wall has a remarkable capacity to adapt to mechanical forces exerted by the intraluminal blood pressure and flow. This includes rapid change in contractile tone as well as chronic alteration of vessel structure if the stimulus persists. Stretch of the intact blood vessel wall promotes growth and contractile differentiation. LÄS MER

  3. 22. Mesentric hemodynamics and effects of angiotensin II during circulatory stress

    Författare :Mats Laesser; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Renin-angiontensin system; angiotensin II; intestines; hemodynamics; perfusion; hemorrhage; hypovolemia; endotoxemia;

    Sammanfattning : Mesenteric hypoperfusion and ischemia is considered to be deleterious to the intestinal mucosal barrier function and it is suggested that the renin-angiotensin system plays a pivotal role in the regulation of mesenteric perfusion.The present thesis examines the effects of the specific AT1 receptor blocker candesartan on mesenteric hemodynamics during acute hypovolemia and endotoxinemia. LÄS MER

  4. 23. Vascular smooth muscle mechanotransduction and plasticity-the role of microRNA, calcium signaling and actin polymerization

    Författare :Karolina Turczynska; Kärlfysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PYK2; actin polymerization; calcium; microRNA; stretch;

    Sammanfattning : Smooth muscle cells residing in the blood vessel media are constantly exposed to mechanical forces exerted by the intraluminal pressure. The smooth muscle senses and adapts to mechanical forces by activation of multiple signaling pathways and cytoskeletal rearrangements. LÄS MER

  5. 24. Effects of mifepristone on the human endometrium and the fallopian tube during the luteal phase

    Författare :Xiaoxi Sun; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Mifepristone; endometrial receptivity; emergency contraception; PR-B; eNOS; IGFBP-1; PRL; HB-EGF; HB-EGF receptors HER1 and HER4;

    Sammanfattning : Mifepristone given postovulatory has been shown effective for contraception, but the precise mechanism of action is still poorly understood. A better understanding of the mechanisms of action of mifepristone, when used for contraception, is important for further development and optimizing the regimen of use. LÄS MER

  7. 25. Collagenous Colitis : A Study of Inflammatory Mediators and Growth Factors Based on Segmental Colorectal Perfusion and Immunohistochemistry

    Författare :Yesuf Ahmed Taha; Magnus Thörn; Yngve Raab; Lars Lööf; Mikael Lördal; Curt Tysk; Uppsala universitet; []
    Nyckelord :General; Collagenous; Collagenous colitis; inflammatory mediators; Steroid treatment; Eosinophil Cationic Protein; Basic Fibroblast Growth Factor bFGF ; Vascular Endothelial Growth Factor VEGF ; albumin; ALLMÄNT;

    Sammanfattning : Collagenous colitis (CC) is an inflammatory bowel disease of unknown etiology. It is characterized by watery diarrhoea without blood, normal endoscopic findings but microscopically colonic mucosal inflammation and increased thickness of the subepithelial collagen band, the latter being a pathognomonic sign. LÄS MER