Objective:To observe the effect of Xueshuantong injection(XST，血栓通注射液）with its ingredient as Notoginseng saponin,on acute cerebral infarction(ACI) and on blood coagulation and fibri-nolysis,so as to comprehensively analyse the mechanism of XST.Methods:Fifty ACI patients were ran-domly divided into 2 groups,and XST group(30 patients)was treated with XST, and the control group (20 patients)given low molecular dextrose,as well as low molecular heparin calcium.The course of treat-ment for both groups was 15 days.The changes of effective rate,score of neurologic impairment,tissue-type plasminogen activator(tPA),inhibitor of plasminogen activator(PAI),D-D dimmer,antithrombin-Ⅲ(AT-Ⅲ),and fibrinogen(Fbg) were all observed.Results:The total effective rate of XST group was 73.33%,that of the control group 65.00%.After the therapy,plasma level of tPA,ratio of tPA/PAI,and AT-Ⅲ content were increased obviously,while the plasma level of PAI and D-D dimmer were de-creased significantly(all P0.05).Conclusion:XST injection could be effective to ACI, the mechanism of which is probably related to improving the balance between plasminogen activator and its inhibitory factor,increasing the acitvity of fi-brinolysin,inactivating thrombin,inhibiting platelet aggregation induced by thrombin,and decreasing blood coagulation.
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