Fig. 3. Effects of intravenous anesthetics on KCl-evoked release of CCK8s. Open bar: KCl-evoked release with 0.1 mm EGTA and no added CaCl²(−); filled bars: KCl-evoked release with 1.3 mm CaCl²(+). Results were normalized to basal release in the absence of CaCl²(mean ± SD in arbitrary units). Data shown are from three to five experiments with each condition analyzed in quadruplicate. There were no significant differences in KCl-evoked release between anesthetic-treated and control synaptosomes by analysis of variance (P > 0.05).