Figure 2. Losartan and cinanserin inhibit GPVI-mediated cell activation.

Washed human platelets were loaded with fura2-AM and screened for drug-mediated inhibition of Ca²⁺ release by 1 µg/ml CRP-XL (n = 3, ± SEM, representative traces and summary, a–c) and 1 µg/ml collagen (n = 3, SEM, representative traces and summary, d–f); losartan (▪) and cinanserin (▴). To measure aggregation, washed human platelets were incubated with drug for one minute prior to the addition of 1 μg/ml CRP-XL (representative traces and summary shown in g–i) or 1 µg/ml collagen (representative traces and summary shown in j–l).