Fig. 7. ( A ) Effects of 15 μm amyloid β 42(Aβ 42) peptide with and without halothane and isoflurane at 1 and 2 minimum alveolar concentration on lactate dehydrogenase release over 72 h in pheochromocytoma cells. Bars represent the mean ± sem (>3 wells, three experiments) magnitude of change from untreated control wells. * P < 0.05 as compared with control; † P < 0.05 as compared with control and the equivalent anesthetic concentration alone; ‡ P < 0.05 as compared with control, the equivalent anesthetic concentration, and the Aβ 42peptide alone (analysis of variance and post hoc Tukey-Kramer testing). ( B ) The analogous results for propofol and ethanol.