摘要:
A non-hemolytic acidic composition comprising an immunoglobulin selected from immunoglobulin A, immunoglobulin G or immunoglobulin M at a pH value in the range of 4.65 to 5.7 comprising one or more excipients selected from amino acids, sugars and sugar alcohols in a concentration range of 100-350 mmol/l, in particular 200-350 mmol/l, characterized in that it displays an optical density (OD) in the range of 0.14 to -0.1 when the OD is determined in a spectrophotometer at 414 nm at a film thickness of 0.825 mm; and its use in an assay for determination of the hemolytic potential of intravenously applied pharmaceuticals and compositions and preparations displaying a reduced potential of hemolysis when being applied intravenously.
摘要:
A method for purification of complement Factor H from a complement Factor H containing source such as blood or blood plasma, in particular a caprylate precipitate of a Factor H containing source, which is e.g. obtained by addition of caprylate ions to fractions of blood or plasma, comprising the steps of: a)providing a Factor H containing source, in particular reconstitution of caprylate precipitate to provide a complement Factor H containing solution; b)performing a cation exchange chromatography in particular as first chromatographic step; c)performing an anion exchange chromatography; d)performing a hydroxyl apatite chromatography; e)followed by ultra/diafiltration to obtain a complement Factor H concentrate.