摘要:
The present invention provides methods for reducing the amidolytic and anti-complement activity (ACA) content of an immunoglobulin composition through the use of cation exchange chromatography. In a specific embodiment, the invention provides methods for reducing the Factor XI and/or Factor XIa and/or ACA content of an immunoglobulin composition by collecting the leading portion of a cation exchange eluate. The present invention also provides immunoglobulin composition having reduced levels of amidolytic activity, Factor XI, and/or Factor XIa, and/or ACA content.
摘要:
The present invention relates to purification of butyrylcholinesterase using anion exchange material, where the butyrylcholinesterase content is enriched at least 10 fold per total protein in the composition.
摘要:
A validatable method for determining a photochemically effective dose for inactivating pathogens in a fluid sample is described herein. In particular, the instant invention covers methods for determining a photochemically effective doses sufficient to inactivate pathogens in a biological sample while leaving biologically active substances of interest unaffected. A batch irradiation reactor effective for inactivating pathogens in biological samples is also described.
摘要:
The present invention relates to a method for the determination of polysorbate in a protein-containing sample. The method of the present invention involves the pretreatment of the sample by alkaline hydrolysis followed by colorimetric determination on the basis of the metal complex of the analyte with a thiocyanate reagent, the complex being extracted in an immiscible organic solvent. The alkaline hydrolysis accounts for the removal of the interfering proteins and enhance selectivity over surfactants similar to the analyte, e.g. for Tween 80 over Triton X-100.
摘要:
The present invention relates, in general, to development of non-human transgenic animals expressing a human blood clotting factor, such as Factor VIII, Factor VII, Factor IX and von Willebrand factor. The invention further provides methods of detecting immunogenic events against human blood clotting factor using the transgenic animals described.
摘要:
The present invention relates, in general, to methods for detecting and quantitating plasma-derived protein and recombinant protein in a sample based on the difference in protein glycosylation, when the plasma protein and the recombinant protein are essentially the same protein.
摘要:
The present invention provides methods for providing a prognosis of treatment of diseases associated with inflammatory disease of the brain, including MS, e.g., relapsing- remitting multiple sclerosis (RRMS), Alzheimer's disease, and Parkinson's disease using molecular markers that are shown to be overexpressed or underexpressed in patients treated with intravenous immunoglobulins (IVIG). Also provided are methods to identify compounds that are useful for the treatment or prevention of MS, e.g., relapsing-remitting multiple sclerosis (RRMS), Alzheimer's disease, and Parkinson's disease.
摘要:
The present invention relates to a new and improved method for preparing a highly concentrated immunoglobulin composition from pooled plasma for subcutaneous injection. A composition comprising 20% or more immunoglobulin suitable for subcutaneous use is also described.