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  1. Article

    Open Access

    Addition of a sequence from α2-antiplasmin transforms human serum albumin into a blood clot component that speeds clot lysis

    The plasma protein α2-antiplasmin (α2AP) is cross-linked to fibrin in blood clots by the transglutaminase factor XIIIa, and in that location retards clot lysis. Competition for this effect could be clinically use...

    William P Sheffield, Louise J Eltringham-Smith, Sharon Gataiance in BMC Biotechnology (2009)

  2. Article

    Open Access

    Incorporation of albumin fusion proteins into fibrin clots in vitro and in vivo: comparison of different fusion motifs recognized by factor XIIIa

    The transglutaminase activated factor XIII (FXIIIa) acts to strengthen pathological fibrin clots and to slow their dissolution, in part by crosslinking active α2-antiplasmin (α2AP) to fibrin. We previously report...

    William P Sheffield, Louise J Eltringham-Smith in BMC Biotechnology (2011)

  3. Article

    Open Access

    Selection and characterization of a DNA aptamer inhibiting coagulation factor XIa

    Factor XIa (FXIa) is a serine protease that catalyzes the activation of Factor IX (FIX) in the blood coagulation cascade. FXIa and its precursor FXI are emergent therapeutic targets for the development of safe...

    David A. Donkor, Varsha Bhakta, Louise J. Eltringham-Smith in Scientific Reports (2017)

  4. Article

    Open Access

    A factor XIa-activatable hirudin-albumin fusion protein reduces thrombosis in mice without promoting blood loss

    Hirudin is a potent thrombin inhibitor but its antithrombotic properties are offset by bleeding side-effects. Because hirudin’s N-terminus must engage thrombin’s active site for effective inhibition, fusing a ...

    William P. Sheffield, Louise J. Eltringham-Smith, Varsha Bhakta in BMC Biotechnology (2018)

  5. Article

    Open Access

    Prothrombin, alone or in complex concentrates or plasma, reduces bleeding in a mouse model of blood exchange-induced coagulopathy

    Prothrombin complex concentrates (PCC) are fractionated plasma protein drugs that reverse warfarin anticoagulation. PCC may control more general bleeding. We sought to identify the dominant procoagulant factor...

    Louise J. Eltringham-Smith, Ruoying Yu, Syed M. Qadri, Yiming Wang in Scientific Reports (2019)

  6. Article

    Open Access

    Correction of haemorrhagic shock-associated coagulopathy and impaired haemostasis by plasma, prothrombin complex concentrates or an activated protein C-targeted DNA aptamer in mice

    Even with extensive transfusion support, trauma-induced bleeding often leads to death. Early intervention may improve outcomes, yet which blood products, factor concentrates, or other drugs constitute optimal ...

    Louise J. Eltringham-Smith, Scott C. Meixner, Edward L. G. Pryzdial in Scientific Reports (2023)