<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Recombinant human thrombin (rhThrombin) is a potential hemostatic alternative to bovine and human plasma-derived thrombin. Hemostatic, liver regeneration effect and plasma concentrations of rhThrombin (SCILL) tested in the form of solution and hydrogels (thermo-sensitive poloxamer gel and carbomer gel; hameln rds) were evaluated. In the bleeding model, rhThrombin was applied locally on the bleeding site. The time to hemostasis was measured. The rhThrombin in liquid form as well as the thermo-sensitive gel forming formulation significantly reduced the bleeding time in comparison to saline. In the regeneration model, a cut in the form “V” was made on the liver and rhThrombin in both formulations was applied at defined concentrations to the wound for 5 min. The rats survived 1, 3 and 5 days after the injury and treatment. Histological examination showed better results in the group treated with rh Thrombin gel in comparison to the liquid form - solution; differences were insignificant. Low [125I]-rhThrombin radioactivity was evaluated in plasma after topical application (solution and both hydrogels) at hemostatic effective doses to partial hepatectomy in rats. Locally applied rh Thrombin on the rat damaged liver tissue never reached pharmacologically active systemic levels. The plasmatic levels and the content of this active protein in injured liver tissue were lower after application of its hydrogels versus solution</p></abstract>

Recombinant human thrombin (rhThrombin) is a potential hemostatic alternative to bovine and human plasma-derived thrombin. Hemostatic, liver regeneration effect and plasma concentrations of rhThrombin (SCILL) tested in the form of solution and hydrogels (thermo-sensitive poloxamer gel and carbomer gel; hameln rds) were evaluated. In the bleeding model, rhThrombin was applied locally on the bleeding site. The time to hemostasis was measured. The rhThrombin in liquid form as well as the thermo-sensitive gel forming formulation significantly reduced the bleeding time in comparison to saline. In the regeneration model, a cut in the form “V” was made on the liver and rhThrombin in both formulations was applied at defined concentrations to the wound for 5 min. The rats survived 1, 3 and 5 days after the injury and treatment. Histological examination showed better results in the group treated with rh Thrombin gel in comparison to the liquid form - solution; differences were insignificant. Low [125I]-rhThrombin radioactivity was evaluated in plasma after topical application (solution and both hydrogels) at hemostatic effective doses to partial hepatectomy in rats. Locally applied rh Thrombin on the rat damaged liver tissue never reached pharmacologically active systemic levels. The plasmatic levels and the content of this active protein in injured liver tissue were lower after application of its hydrogels versus solution

Hemostatic effect and distribution of new rhThrombin formulations in rats

hameln rds, Horná 36, Modra, Slovak Republic

hameln rds, Horná 36, Modra, Slovak Republic / Faculty of Pharmacy, Department of Galenic Pharmacy, Comenius University, Bratislava, Slovak Republic

Interdisciplinary Toxicology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Hemostatic effect and distribution of new rhThrombin formulations in rats"}

Recombinant human thrombin (rhThrombin) is a potential hemostatic alternative to bovine and human plasma-derived thrombin. Hemostatic, liver regeneration...

Hemostatic effect and distribution of new rhThrombin formulations in rats

Pubblicato online: 04 mar 2015

Pagine: 219 - 222

Ricevuto: 28 set 2014

Accettato: 02 dic 2014

DOI: https://doi.org/10.2478/intox-2014-0032

© Interdisciplinary Toxicology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.