Effects of endogenous NO on baseline K
channel activity in DRG neurons. Baseline KATP channel activity (NPo) was recorded 20 min after pretreatment with or without L-NAME (100 μM), a non-selective endogenous NO synthetase inhibitor. Each vertical barrepresents measurements from 6–7 cell-attached patches at a holding potential of -60 mV (mean ± SD). NS = no significant.