Figure 5. (A) Effects of anesthetics on the spontaneous3H-GABA release from striatal synaptosomes. Results (mean plus/minus SD) are expressed as a percentage of variation from time dependent control. (B) Effects of anesthetics on the KCl-evoked3H-GABA release from striatal synaptosomes. Data (mean plus/minus SD) are expressed as a percentage of the control KCl-(15 mM) evoked peak. C - clonidine (10 sup -8 M); E - enflurane (10 sup -3 M); ET = etomidate (10 sup -4 M); H - halothane (10 sup -3 M); I - isoflurane (10 sup -3 M); K = ketamine (10 sup -4 M); N = nipecotic acid (10 sup -3 M); P - propofol (10 sup -4 M); T - thiopental (10 sup -4 M).