Figure 2. Effect of dansylcadaverine (1) on norepinephrine-induced platelet aggregation: a, no inhibitor; b, 3.1 X 10-4M, c, 1.6 X 10-4M; d, 6.2 X lO-'M. Norepinephrine, 6.2 X 10-bM. soln (1-9 ml of blood). The blood was centrifuged at 200g for 15 min to prep platelet-rich plasma (PRP). Platelet-poor plasma (PPP) was obtd by centrifugation for 20 min at 3200g. All these operations were performed at room temp and completed within 45 min after the ...