Figure 3. Prior desensitization to ATP had no effect on the time course of capsaicin-evoked inward current.
The data in A show inward currents in response to ATP (10 μM) and capsaicin (0.5 μM) in a single DRG neurone. ATP was applied before capsaicin. The data in B show inward currents in response to capsaicin (0.5 μM) and ATP (10 μM) in a second cell. Capsaicin was applied before ATP. Vh was −60 mV throughout.