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  • Title: The factor VIII abnormality in severe von Willebrand's disease.
    Author: Zimmerman TS, Abildgaard CF, Meyer D.
    Journal: N Engl J Med; 1979 Dec 13; 301(24):1307-10. PubMed ID: 315519.
    Abstract:
    We attempted to characterize the small amounts of factor VIII-related antigen detectable in the severe recessive form of von Willebrand's disease with newly developed radioimmunoprecipitin techniques and radiocrossed immunoelectrophoresis. Previous studies have failed to demonstrate factor VIII-related antigen in most patients tested even with the highly sensitive immunoradiometric assays. Using the newer techniques, we found antigen in the plasma of six of eight patients with severe von Willebrand's disease from different kindreds. Qualitative abnormalities of the trace quantities of factor VIII-related antigen were demonstrated in five of the patients, with absence or relative decrease of the larger, less anodal forms. In addition, five distinct patterns were observed, each suggesting a different molecular abnormality. Heterozygous parents had normal to moderately decreased factor VIII-related antigen, with normal crossed immunoelectrophoretic patterns. This study suggests that severe von Willebrand's disease is a heterogeneous syndrome with various underlying molecular defects.
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