The Experimental Studies on Antithrombotic Effects of Hyunhosaiksan

The purpose of the present study was to investigate the effects of Hyunhosaiksan (HHS) on antithrombotic actions which include blood activation, thrombus removal, warming of circulating blood, and the control of pain on abdomen and lower and upper burning spaces. HHS significantly inhibited platelet aggregation induced by ADP and epinephrine in a HHS dose-dependent manner when analyzed by the Sigmoid Emax model in WinNonlin. EC50 values of HHS were 1.71 ㎍/ml and 0.004 ㎍/ml for ADP and epinephrine respectively. In the vivo study, HHS inhibited pulmonary embolism induced by collagen and epinephrine, which was however statistically insignificant. HHS increased number of platelets, APTT and volume of fibrinogen significantly as compared with the control group in dextran-induced thrombus model. Furthermore, HHS stimulated levels of blood flow in vivo though its effect was not observed in vitro. These results suggest that Hyunhosaiksan (HHS) can be used for treating numerous diseases related with blood aggregation and circulation problems. Further systematic investigations on the synergic effects among drugs used in the oriental medicine as well as in the western medicine in relation to thrombosis therapy would provide an important insight into the potential therapeutic applications.

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