Sökning: "Contact activation system"
Visar resultat 1 - 5 av 94 avhandlingar innehållade orden Contact activation system.
1. The Plasma Contact System : New Functional Insights from a Hemostatic and Thrombotic Perspective
Sammanfattning : The physiological role of the plasma contact system still remains a partial enigma. The aim of the presented work was to expand our understanding of the plasma contact system, focusing on its physiological activation and function, principally from a hemostatic perspective. It also explored contact system activation under pathological conditions. LÄS MER
2. Contact activation on bacterial surfaces - a virulence mechanism
Sammanfattning : Life-threatening conditions from bacterial infections are a major clinical problem. During a severe infection, the host responds by a massive release of pro-inflammatory mediators together with a systemic activation of systems such as the coagulation, fibrinolytic, and complement systems. LÄS MER
3. Platelet Activation and Inhibition in Connection with Vascular Stents
Sammanfattning : This thesis describes the Chandler loop, which makes it possible to conduct studies in vitro of molecular and cellular interactions between whole blood and stents. It was possible to monitor activation and inhibition of the cascades systems, leukocytes and platelets by combining different platelet inhibitors and heparin coating of stents. LÄS MER
4. Interaction between biomaterials and innate immunity with clinical implications
Sammanfattning : Today there is an increasing clinical demand and expectation of patients for biomaterials, which underscores the importance of discovering the correlations between biomaterials and biological systems, especially blood. When an artificial material makes contact with blood, the first event is a rapid adsorption of plasma protein on the material surface, on top of which the innate immune system is triggered, with potentially detrimental consequences. LÄS MER
5. NO Effect on Inflammatory Reaction in Extracorporeal Circulation : Ex vivo Studies
Sammanfattning : Nitric oxide (NO) is expressed in inflammatory tissues. However, NO effects are controversial in inflammation; NO is described as acting in a dose dependent manner and possess both pro-inflammatory and anti-inflammatory properties. LÄS MER