Figure 3.

Growth factor-induced PGE₂ (A) and PGF_2α (B) release from guinea pig tracheal smooth muscle preparations. Basal release amounted to 963 ± 245 pg/ml (PGE₂) and 1093 ± 204 pg/ml (PGF_2α). Data represent means ± s.e.mean of five experiments.