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Factor VIII procoagulant and antigen content of antihemophilic factor (AHF) concentrates. 1978

H C Yang, and C Duffy

Antihemophilic factor concentrates from six manufacturers were studied for factor VIII procoagulant and antigen content. Marked lot-to-lot differences were found in the factor VIII antigen:procoagulant ratio. The average antigen content was 2.33 times that of procoagulant activity in 21 lots studied, indicating a significant loss of activity during the fractionation process.

UI MeSH Term Description Entries
D011232 Chemical Precipitation The formation of a solid in a solution as a result of a chemical reaction or the aggregation of soluble substances into complexes large enough to fall out of solution. Precipitation, Chemical
D003450 Cryoglobulins Abnormal immunoglobulins, especially IGG or IGM, that precipitate spontaneously when SERUM is cooled below 37 degrees Celsius. It is characteristic of CRYOGLOBULINEMIA. Cryoglobulin,Cryoprotein,Cryoproteins
D005169 Factor VIII Factor VIII of blood coagulation. Antihemophilic factor that is part of the factor VIII/von Willebrand factor complex. Factor VIII is produced in the liver and acts in the intrinsic pathway of blood coagulation. It serves as a cofactor in factor X activation and this action is markedly enhanced by small amounts of thrombin. Coagulation Factor VIII,Factor VIII Clotting Antigen,Factor VIII Coagulant Antigen,Factor VIII Procoagulant Activity,Thromboplastinogen,Blood Coagulation Factor VIII,F VIII-C,Factor 8,Factor 8 C,Factor Eight,Factor VIIIC,Hyate-C,Hyatt-C,F VIII C,Hyate C,HyateC,Hyatt C,HyattC
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000941 Antigens Substances that are recognized by the immune system and induce an immune reaction. Antigen

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