Fig. 10.

PACAP27 does not alter cardiac neuron action potential characteristics. Five action potentials produced by depolarizing current pulses (0.3 nA, 5 msec) were collected before and after neuron superfusion with 100 nm PACAP27. Traces are the average of five action potentials. The resting potential was −47 mV. Action potential configuration was similar before and during PACAP exposure. PACAP increased excitability in the neuron shown in this example. Data are representative of four neurons.