Immunological Effects Of Factor VIII Concentrates: Characterization Of Transforming Growth Factor β As An Immunomodulatory Contaminant In Factor VIII Concentrates

6 Factor VIII Concentrates, Factor VIII/von Willebrand Factor Concentrates, Factor IX Concentrates, Activated Prothrombin Complex Concentrates

6.5 Range of Application, Dosage, Mode of Administration 6.5.1 General Information 6.5.2 Indications for Replacement Therapy Using Factor Concentrates 6.5.3 Dosage, Mode of Administration 6.5.3.1 Replacement in Children with Hemophilia A, B or von Willebrand Syndrome 6.5.3.2 Replacement in Adults with Hemophilia A, B or von Willebrand Syndrome 6.5.3.3 Indications and Recommended Doses for Treat...

6 Factor VIII Concentrates, Factor VIII/von Willebrand Factor Concentrates, Factor IX Concentrates, Activated Prothrombin Complex Concentrates.

6.5 Range of Application, Dosage, Mode of Administration 6.5.1 General Information 6.5.2 Indications for Replacement Therapy Using Factor Concentrates 6.5.3 Dosage, Mode of Administration 6.5.3.1 Replacement in Children with Hemophilia A, B or von Willebrand Syndrome 6.5.3.2 Replacement in Adults with Hemophilia A, B or von Willebrand Syndrome 6.5.3.3 Indications and Recommended Doses for Treat...

Anti-A haemagglutinins in factor VIII concentrates.

Experimental evidence has been obtained that cryoprecipitation concentrates anti-A in mixtures of group O and group A plasma by a mechanism that does not operate in group O plasma alone. It has been concluded that the anti-A/A polysaccharide complex is less soluble during cryoprecipitation than anti-A immunoglobulin, and this complex dissociates to give free anti-A when the cryoprecipitate is r...

Chromogenic determination of factor VIII activity in plasma and factor VIII concentrates

Identification of transforming growth factor-beta as a contaminant in factor VIII concentrates: a possible link with immunosuppressive effects in hemophiliacs.

In previous studies, we have shown that some, but not all low-, intermediate-, and high-purity factor VIII concentrates inhibit interleukin-2 (IL-2) secretion from phytohemagglutinin (PHA)-stimulated T lymphocytes. We now present evidence that this inhibitory action of concentrates is, at least in part, due to contamination with transforming growth factor-beta (TGF-beta). Originally identified ...