Snake Venom Hydrogels as a Rapid Hemostatic Agent for Uncontrolled Bleeding

Abstract: Uncontrolled bleeding from traumatic injury remains the leading cause of preventable death with loss of balance between blood clotting (coagulation) and blood clot breakdown (fibrinolysis). A major limitation of existing hemostatic agents is that they require a functioning clotting system to control the bleeding and are largely based on gauze delivery scaffolds. Herein, a novel rapid wound sealant, composed of two recombinant snake venom proteins, the procoagulant ecarin, to rapidly initiate blood clotting and the antifibrinolytic textilinin, to prevent blood clot breakdown within a synthetic thermoresponsive hydrogel scaffold is developed. In vitro, it is demonstrated that clotting is rapidly initiated with only nanomolar concentrations of venom protein and clot breakdown is effectively inhibited by textilinin. A stable clot is formed within 60 s compared to normal clot formation in 8 min. In vivo studies reveal that the snake venom hydrogel rapidly controls warfarin‐induced bleeding, reducing the bleed volume from 48% to 12% and has demonstrated immune compatibility. A new class of hemostatic agents that achieve formation of rapid and stable blood clots even in the presence of blood thinners is demonstrated here.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Snake Venom Hydrogels as a Rapid Hemostatic Agent for Uncontrolled Bleeding ; day:09 ; month:06 ; year:2022 ; extent:12
Advanced healthcare materials ; (09.06.2022) (gesamt 12)

Creator
Yegappan, Ramanathan
Lauko, Jan
Wang, Zhao
Lavin, Martin F.
Kijas, Amanda W.
Rowan, Alan E.

DOI
10.1002/adhm.202200574
URN
urn:nbn:de:101:1-2022061015202940574358
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:28 AM CEST

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Associated

  • Yegappan, Ramanathan
  • Lauko, Jan
  • Wang, Zhao
  • Lavin, Martin F.
  • Kijas, Amanda W.
  • Rowan, Alan E.

Other Objects (12)