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  • Title: Platelet factor VIII-related antigen: studies in vivo after transfusion in patients with von Willebrand disease.
    Author: Sultan Y, Jeanneau C, Lamaziere J, Maisonneuve P, Caen JP.
    Journal: Blood; 1978 Apr; 51(4):751-61. PubMed ID: 343837.
    Abstract:
    Four unrelated patients with a severe form of von Willebrand disease showed no detectable factor VIII-related antigen (VIIIR:AG) in either their plasma or their platelets. They received cryoprecipitate infusions, three patients in a single injection each and one every day for 9 days before and after surgery. Platelet VIIIR:Ag was studied at different times during and after transfusion using electroimmunoassay of platelet extracts and electron microscopy of the platelets incubated with anti-VIIIR:Ag antibodies coupled to peroxidase. No VIIIR-Ag was detected in or around the patients' platelets, although this antigen was detected in the circulating blood. These results that there was no VIIIR:Ag uptake from the plasma by the platelets and that platelet VIIIR:Ag came from megakaryocytes.
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