OBJECTIVE In order to clarify whether the Safflor Yellow (SY) is a new platelet activating factor antagonist,we adopted the radio binding assay of SY prepared through silica adsorption procedure.

• 目的观察硅胶吸附法制得的红花总黄色素体外对氚标记血小板激活因子(3HPAF)血小板受体结合的影响，试图证明该药为一新型血小板激活因子(PAF)受体拮抗剂。