Figure 6
Effect of D600 and extracellular Na+removal on ATP-induced response. A: Fmax to 10-3 M ATP in rat airway rings in the presence of 10 μM D600 (n = 7 to 10). B: Fmax to 10-3 M ATP in rat airway rings in the absence of extracellular Na+ (n = 7 to 8). C: Fmax to 30 mM KCl in rat airway rings in the absence of extracellular Na+ (n = 5 to 7). Trachea: black column; left (LEPB) and right EPB (REPB): hatched columns; left IPB: cross-hatched column. Horizontal bars are Fmax in control conditions. Error bars are SEM. *P < 0.05.