The Acute Coagulopathy of Trauma is Due to Impaired Initial Thrombin Generation but Not Clot Formation or Clot Strength

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The acute coagulopathy of trauma is due to impaired initial thrombin generation but not clot formation or clot strength.

BACKGROUND Acute coagulopathy of trauma (ACOT) has been described as a very early hypocoagulable state, but the mechanism remains controversial. One proposed mechanism is tissue hypoperfusion leading to protein C activation, with subsequent inhibition of Factors V and VIII. Variability in trauma has impeded the use of clinical data towards the elucidation of the mechanisms of ACOT, but thrombel...

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Mechanisms of early trauma-induced coagulopathy: The clot thickens or not?

Traumatic-induced coagulopathy (TIC) is a hemostatic disorder that is associated with significant bleeding, transfusion requirements, morbidity and mortality. A disorder similar or analogous to TIC was reported around 70 years ago in patients with shock, hemorrhage, burns, cardiac arrest or undergoing major surgery, and the condition was referred to as a "severe bleeding tendency," "defibrinati...

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Contribution of Fibrin Stabilization to Clot Strength

A B S T R A C T The contribution of fibrin stabilization to clot strength, measured as the static elastic modulus, was evaluated in human plasma by two independent procedures. In the first approach, amine inhibitors of fibrin stabilization were examined for their effects on the rigidity of normal plasma clots. It is a unique property of these inhibitors that they do not interfere with the rever...

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Regeneration: Every Clot Has a Thrombin Lining

Why do some amphibian organs regenerate and others do not? And why do most mammalian organs not regenerate? New work on lens regeneration indicates that the answer lies in the need for cells to dedifferentiate first, and that what makes them dedifferentiate may be the presence of thrombin in combination with cellular clotting factors.

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A novel nucleotide-based thrombin inhibitor inhibits clot-bound thrombin and reduces arterial platelet thrombus formation.

A novel thrombin inhibitor based on single-stranded (ss) deoxynucleotides with the sequence GGTTGGTGTGGTTGG (thrombin aptamer) has been recently discovered. In this study, we tested its efficacy in inhibiting clot-bound thrombin activity and platelet thrombus formation in an ex vivo whole artery angioplasty model. The thrombin aptamer showed a specific dose-dependent inhibition of thrombin-indu...

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ژورنال

عنوان ژورنال: Journal of Surgical Research

سال: 2011

ISSN: 0022-4804

DOI: 10.1016/j.jss.2011.03.047