Thrombosis research
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The current report provides a personal perspective summarising some interesting recent developments in hemostasis, as well as providing a brief glimpse into some possible imminent changes to come. We briefly review routine coagulation tests, and what changes may take place related to the new emerging anticoagulants. We also briefly review the old and new global tests of hemostasis, including thrombin generation and thromboelastography. Also briefly discussed within the diagnostics of bleeding and thrombotic disorders are the role of microparticles, the rise and fall of thrombophilia testing, the 'disappearance' of fibrinolysis pathway tests, and the absence of tests related to the endothelium, in part reflecting upon Virchow's triad.
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Inflammation and coagulation are two main host-defence systems that interact with each other. Inflammation activates coagulation and coagulation modulates the inflammatory activity in many ways. The contributing molecular pathways are reviewed. ⋯ Pro-inflammatory cellular effects of coagulation proteases as well as the anti-inflammatory effects of APC/EPCR are mediated by signaling via protease activated receptors PAR on mononuclear cells, endothelial cells, platelets, fibroblast, and smooth muscle cells. The beneficial effects of APC in sepsis are mainly dependent on the PAR-mediated cell-protective properties rather than the anticoagulant protease function on coagulation cofactors FV/Va and FVIII/VIIIa. Animal experiments with signaling selective APC-variants show promise in improving the therapeutic efficacy and safety of APC in sepsis.
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Thrombosis research · Jan 2011
Letter Randomized Controlled TrialPre-operative heparin reduces pulmonary microvascular fibrin deposition following cardiac surgery.