Fig. 5.
Effects of group I antagonists on the second [Ca2+]i peak in thrombasthenic platelets. Platelets obtained from a patient with Glanzmann thrombathenia were preincubated with 10 μmol/L of each group I antagonist and then stimulated with 0.03 U/mL thrombin. (A) None. (B) FK633. (C) FR169824.