Objective: To observe the effect of nourishing yin improving blood circulation and detoxification ultrafine Chinese medicine prescription on the expression of prothrombim mRNA and protease-activated receptor-1(PAR-1) mRNA at brain tissue of focal cerebral infarction rats.Methods: Twenty-four rats were randomly divided into 4 groups: the sham-operated group,model group,Ziyin Huoxue Jiedu Ultrafine Chinese Medicine group(ZUG) and argatroban group(ABG).Each group was divided into two time phase point of 1st day,3rd day.The model was repro...