OBJECTIVE Diurnal variations in levels of factor VII (FVII), FVIII, proteins C and S, antithrombin, plasminogen activator inhibitor-1, prothrombin fragment F1+2, and D-dimers in healthy humans point to the existence of circadian rhythms of coagulation factors. We sought for temporal fluctuations of tissue factor pathway inhibitor (TFPI) activity in human and mouse plasma. METHODS AND RESULTS ...

As fresh frozen plasma (FFP) loses coagulation factor activity during the production process, FFP therapy may not be feasible to completely replenish coagulation factor concentrations in a clinical setting. The aim of this study was to describe the results of early replacement coagulation factors with FFP in a simplified and idealized in vitro model of dilution. Six ml of whole blood drawn from...

Hemophilia B is an X-Iinked recessive bleeding disorder resulting from a deficiency of the coagulation factor IX (FIX) protein activity. a vitamin K-dependent serine protease active in both the intrinsic and extrinsic coagulation systems. DNA analyses of the factor IX gene in two unrelated patients with severe hemophilia B. with a IX coagulant activity <1 % and undetectable FIX antigen. detecte...

A study of techniques for inducing acute pancreatitis in rats has shown that oil pancreatitis is the most consistent. All methods result in increased fibrinogen catabolism, which is in part due to disseminated intravascular coagulation and in part due to the inflammatory reaction in the pancreas. There is also increased albumin catabolism. Increased fibrin embolization to the lungs results in a...