Blood coagulation factors and platelet response to drug‐induced hepatitis and hepatosis in rats

Background : Knowing the variability of blood coagulation responses to liver damage of different origins can provide a key to curing liver tissues or to mitigating treatment side effects. The aim of the present work was to compare the changes in the main components of hemostasis under experimental drug-i nduced hepatosis and hepatitis in rats.Methods : We modeled diclofenac-i nduced hepatitis and tetracycline-i nduced hepa-tosis. Hemostasis response was gauged by measuring fibrinogen, factor X, protein C (PC), and prothrombin in plasma. The decarboxylated form of prothrombin was de-tected by measuring prothrombin index and ecamulin index. Platelet reactivity was studied using aggregometry. Results : Both hepatitis and hepatosis decreased the synthesis of fibrinogen, factor X, and prothrombin. However, protein carboxylation was not disrupted in hepatosis but was much impaired in hepatitis. PC decreased in both models as a consequence of its consumption possibly during inflammatory response. Platelet aggregation rate was lower in hepatosis but higher in hepatitis. Conclusions : Our findings imply the need for a thorough monitoring of the hemostasis system in liver diseases to avoid possible thrombotic complications. Its state indicates the disorder's rate and character.