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Thromb Haemost 1974; 31(02): 328-338
DOI: 10.1055/s-0038-1649167
DOI: 10.1055/s-0038-1649167
Original Article
Studies on the Characterization of Factor VIII and a Co-factor VIII
Further Information
Publication History
Received 29 May 1973
Accepted 16 January 1974
Publication Date:
29 June 2018 (online)
Summary
Factor VIII occurs in the body in two different forms. In lymph factor VIII is bound to chylomicra. In plasma, factor VIII is bound to a protein.
After delipidation of chylomicra we obtained a glycoprotein with a high polysaccharide content and a molecular weight of approx. 160,000.
In plasma, factor VIII is attached to a protein which is present in normal concentrations in plasma of patients with haemophilia A and in serum (co-factor VIII).
This factor is deficient in both the plasma and the serum of patients with von Willebrand’s disease.
The binding between factor VIII and co-factor VIII is reversible.
Some properties of these two factors are described.
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