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Milwaukee, WI, United States

Medical College of Wisconsin and Blood Center Research Foundation | Date: 2012-11-06

Methods and kits for measuring levels of von Willebrand factor function in a sample without using a platelet aggregation agonist, such as ristocetin, comprising recombinant glycoprotein Ib having at least two of a G233V, D235Y and M239V mutations and an agent to detect a complex between the recombinant glycoprotein Ib and von Willebrand factor.

Blood Center Research Foundation | Date: 2014-02-28

The invention provides a method for detecting heparin-induced antibodies comprising a) binding a PF4-heparin antigen to a solid surface; b) incubating the bound PF4-heparin with a sample comprising heparin-induced antibodies to be detected; c) contacting the sample with at least two labeled secondary antibodies, wherein the secondary antibodies bind to heparin-induced antibodies present in the sample; d) detecting the presence of the labeled secondary antibodies using flow cytometry or a suitable method, wherein the heparin-induced antibodies bound to the secondary antibodies are identified. In one embodiment, the at least two secondary antibodies are anti-human antibodies which specifically bind to heparin-induced antibodies and are selected from the group consisting of Ig, IgG, IgA, and IgM.

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