Platelet aggregation in whole blood, a new approach for understanding the antiplatelet effect of N-(3-hydroxy-1,3,5(10)-estratrien-17b-yl) butylamine (buame).

We have previously reported the effect of a compound derived from estradiol containing a radical amino butyl at the 17-beta position which has shown anticoagulant effects in whole blood and antiplatelet effects in light transmission aggregometry where platelets are isolated from other blood cells. In contrast, whole blood aggregometry includes the platelet interactions with blood elements such as erythrocytes and leukocytes. We examined the cooperative effect between leukocytes, erythrocytes and platelets and the antiplatelet effect of Buame in whole blood aggregometry, a tool to assess platelet function in its physiological environment.