High von Willebrand factor concentration compensates a relative adhesion defect in uremic blood
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چکیده
منابع مشابه
High von Willebrand factor concentration compensates a relative adhesion defect in uremic blood.
Uremia is associated with a bleeding diathesis. We investigated platelet adhesion as a cause for the impaired primary hemostasis and the role of von Willebrand factor (vWF) in this process in uremic patients. Perfusions with blood with standardized hematocrit, platelet count, and free Ca2+ ions were performed over inverted and deendothelialized artery segments from human umbilical cords in a mo...
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The present studies were undertaken to determine whether factor VIII/von Willebrand factor (vWF) present in the vessel wall (in addition to that in plasma) may mediate the attachment of platelets to subendothelium. Subendothelium from everted rabbit aorta was exposed to human citrated blood flowing through an annular perfusion chamber at 40 mL/min (wall shear rate of 2,600 s-1 for five minutes)...
متن کاملOn the role of von Willebrand factor in promoting platelet adhesion to fibrin in flowing blood.
Platelet adhesion to fibrin at high shear rates depends on both the glycoprotein (GP) IIb:IIIa complex and a secondary interaction between GPIb and von Willebrand factor (vWF). This alternative link between platelets and vWF in promoting platelet adhesion to fibrin has been examined in flowing whole blood with a rectangular perfusion chamber. Optimal adhesion required both platelets and vWF, as...
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Platelet adhesion to fibrin at high shear rates depends on both the glycoprotein (GP) 1lb:llla complex and a secondary interaction between GPlb and von Willebrand factor (vWF). This alternative link between platelets and vWF in promoting platelet adhesion to fibrin has been examined in flowing whole blood with a rectangular perfusion chamber. Optimal adhesion required both platelets and vWF, as...
متن کاملUremic platelets have a functional defect affecting the interaction of von Willebrand factor with glycoprotein IIb-IIIa.
Uremic patients have an impaired platelet function that has been related to membrane glycoprotein (GP) abnormalities. Using a perfusion system, we have studied the interaction of normal and uremic platelets with vessel subendothelium (SE) under flow conditions. Reconstituted blood containing washed platelets, purified von Willebrand factor (vWF) (1 U/mL), and normal washed red blood cells was e...
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ژورنال
عنوان ژورنال: Blood
سال: 1990
ISSN: 0006-4971,1528-0020
DOI: 10.1182/blood.v75.7.1498.bloodjournal7571498