Jones, C. I., Sage, T., Moraes, L. A., Vaiyapuri, S., Hussain, U., Tucker, K. L., Barrett, N. E. and Gibbins, J. M. (2014) Platelet endothelial cell adhesion molecule­1 inhibits platelet response to thrombin and von Willebrand factor by regulating the internalization of glycoprotein Ib via AKT/glycogen synthase kinase­3/dynamin and integrin IIb 3. α β Arteriosclerosis Thrombosis and Vascular Bi...

NovoSeven® (Novo Nordisk, Denmark) is a recombinant DNA preparation of activated blood coagulation factor VII (rFVIIa). It is used to manage bleeding in hemophilia patients for whom standard therapy is inadequate because of the presence of inhibitors to either factor VIII (hemophilia A) or factor IX (hemophilia B). It poses no risk for the transmission of human pathogens, and it is infused in r...

Quantitative ristocetin-induced platelet aggregation of normal platelet-rich plasma (PRP) decreased with time after PRP preparation. An increase in p H of the PRP with time proved to be responsible for this finding. Diffusion of CO2from the plasma is the prime determinant of the change in pH. Since a complex combination of factors influences CO2 diffusion (surface area-to-volume relationship, c...

form in Thrombosis and Haemostasis. Supported by the Science Fund of the Chinese Academy of Sciences (project No. 82-172) and by grants 6K14277 and 6K14443 from the National Health and Medical Research Council of Australia. Michael C. Berndt is the recipient ofa Wellcome Australian Senior Research Fellowship. Address reprint requests to Dr Changgeng Ruan. Suzhou Medical College. Suzhou 215007, ...

There are three major types of VWD disease. Type 1, the most frequent form, is characterized by a partial quantitative deficiency in von Willebrand factor (VWF). Type 2 is a qualitative deficiency, and Type 3 is a virtually complete deficiency. Type 2 VWD is divided into four subtypes. Type 2A includes variants with decreased platelet adhesion caused by a selective deficiency in high-molecular ...

Type 2B von Willebrand disease (VWD2B) is caused by an abnormal von Willebrand factor (VWF) with increased affinity for the platelet receptor glycoprotein Ib-alpha (GPIb-alpha) that may result in moderate to severe thrombocytopenia. We evaluated the prevalence and clinical and molecular predictors of thrombocytopenia in a cohort of 67 VWD2B patients from 38 unrelated families characterized by V...

Exposure of platelets to shear stress leads to aggregation in the absence of exogenous agonists. We have now found that different adhesive proteins and platelet membrane glycoproteins are involved in aggregation depending on the shear stress conditions and the concentration of divalent cations in the medium. When blood is collected with trisodium citrate as anticoagulant, which causes a decreas...