Figure 1
Effect on ATP isolated airway rings. A: typical trace of the effect of 10-3 M ATP on rat IPB. B: typical trace of the effect of 10-3 M ATP on human IPB. C: mean ATP-induced non-cumulative response curves in trachea (black circles) right EPB (down triangles), left EPB (up triangles) and left IPB (squares) from rat airways (n = 10). D: mean ATP-induced non-cumulative response curves in human IPB (n = 7). E: TR10 in rat trachea (black column) right (REPB) and left EPB (LEPB) (hatched columns), and left IPB (cross-hatched column). F: TR10 in human IPB (cross-hatched column) Error bars and SEM. *P < 0.05.