Fig. 7. Isoflurane augments the muscimol-induced γ-aminobutyric acid current. (  A ) Muscimol (5 μm)-induced outward currents before (  left ) and during (  right ) application of isoflurane. The membrane potential was clamped at 0 mV. (  B ) Amplitude of the current under the action of isoflurane relative to that in the control (n = 8). *  P < 0.05.