نتایج جستجو برای: platelets
تعداد نتایج: 44753 فیلتر نتایج به سال:
Platelets may become activated in a number of clinical disorders and participate in thrombus formation. We developed a direct test for activated platelets in whole blood using flow cytometry. Whole blood was incubated with either biotin-PAC1, a monoclonal antibody specific for the fibrinogen receptor on activated platelets, or biotin-S12, an antibody specific for an alpha-granule membrane prote...
Platelets play an important role not only in hemostasis but also in the pathophysiology of coronary artery disease. The complex interactions among the vascular endothelium, platelets, and blood components are one of the most exciting research areas today. This review addresses some fundamentals of platelet physiology and examines why platelets are interesting probes for neurophysiology. Results...
The association of fibrinogen with washed human platelets was examined by immunocytochemistry during aggregation induced by adenosine diphosphate (ADP) and during deaggregation. The platelets were suspended either in a medium containing 2 mmol/L Ca2+ or in a medium containing no added Ca2+ (20 mumol/L Ca2+). Platelets were fixed at several times during aggregation and deaggregation, embedded in...
Although 125I-fibrinogen becomes associated with washed platelets from normal human subjects during ADP-induced shape change and aggregation, 125I-fibrinogen did not become associated with washed plateletes from a thrombasthenic subject during ADP-induced shape change and the platelets did not aggregate. Platelets from control and thrombasthenic subjects were treated with chymotrypsin, which is...
An experimental model using asplenic rabbits injected with radioactive amino acids has been developed to examine the density distribution of newly released platelets. Platelets from asplenic rabbits had a larger mean volume and greater protein content than those from asplenic animals. Radiolabel, indicative of new platelets, is preferentially incorporated into the most dense platelets during th...
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