Figure 3

Acetate does not affect the action potential duration (APD ₉₀ ). (A) Representative action potentials recorded before (Control, gray line) and 2 minutes following acetate exposure (Acetate, black line). Action potentials were recorded in whole cell current clamp mode and were evoked suprathreshold current injections. Records are averaged traces from 25 consecutive action potentials. (B) Summary APD₉₀ data from all (n = 7) experiments as in A. Acetate exposure did not affect the APD₉₀ (24.5 ± 3.2 msec in acetate vs. 25.0 ± 3.5 msec in control).