Figure 6. Effects of α-NAD+ and β-NAD+ on the CCh response in α-toxin-permeabilized tracheal SM.
Either 2.5 mM α-NAD+ (A) or 2.5 mM β-NAD+ (B) was present 6 min before and during the CCh response. Note that more of a tonic CCh response was observed in both traces. The traces represent at least four separate experiments.