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[Effect of urinastatin on disseminated intravascular coagulation]
Abstract:
Effect of urinary enzyme inhibitor urinastatin (MTI) on disseminated intravascular coagulation (DIC) was investigated. The prolongation of PTT and increase in FDP in endotoxin-induced DIC in rats were restored by the intravenous infusion of MTI. The reduction in platelet counts, decrease in fibrinogen level and prolongation of PT were partially suppressed by the drug. Furthermore, in vitro addition of MTI prevented the decrease in r and k values and increase in ma and m epsilon values in the thromboelastogram of whole blood in endotoxin-induced DIC in rabbits. It is suggested that MTI might prevent DIC in vivo and in vitro through the inhibition of Factor XII activity and through the prevention of thromboplastin release caused by endotoxin.
Insights
Urinastatin (MTI) effectively treats disseminated intravascular coagulation (DIC) by normalizing clotting times and fibrin degradation products. This urinary enzyme inhibitor shows promise in preventing DIC progression in both animal models.
Area of Science:
- Biochemistry
- Hematology
- Pharmacology
Background:
- Disseminated intravascular coagulation (DIC) is a life-threatening condition characterized by systemic activation of coagulation.
- Current treatments for DIC aim to manage coagulation and support organ function, but novel therapeutic strategies are needed.
Purpose of the Study:
- To investigate the therapeutic effect of urinastatin (MTI), a urinary enzyme inhibitor, on endotoxin-induced disseminated intravascular coagulation (DIC).
Main Methods:
- The study utilized animal models of DIC induced by endotoxin in rats and rabbits.
- Intravenous infusion of MTI was administered to rats, and its effects on coagulation parameters were assessed.
- In vitro experiments involved adding MTI to whole blood from rabbits with DIC to evaluate its impact on thromboelastography.
Main Results:
- MTI infusion restored prolonged partial thromboplastin time (PTT) and increased fibrin degradation products (FDP) in endotoxin-induced DIC in rats.
- MTI partially suppressed the reduction in platelet counts, decrease in fibrinogen levels, and prolongation of prothrombin time (PT).
- In vitro, MTI prevented detrimental changes in thromboelastogram values (r, k, ma, m epsilon) in endotoxin-induced DIC.
Conclusions:
- Urinastatin (MTI) demonstrates significant efficacy in mitigating DIC in vivo and in vitro.
- MTI may exert its protective effects by inhibiting Factor XII activity and preventing endotoxin-induced thromboplastin release.