“…Visualization of VWF multimers was achieved using a commercially available enhanced chemiluminescence kit for detecting horseradish peroxidaselabeled antibodies on Western blots. 29 In addition, VWF-cleaving protease (ADAMTS13) activity was assessed by fluorescence resonance energy transfer (Fluoroskan Ascent FL, Thermo Fisher Scientific, Waltham, MA). Plasminogen activator inhibitor antigen (PAI) and thrombomodulin (TM) were measured by ELISA (Imubind, BioMedica Diagnostics, Windsor, Canada and Biomatik Corporation, respectively).…”