Figure 3. Anesthetic effect (supraclinical concentration) on rate of hydrogen peroxide-mediated cell death in aortic endothelial cell suspension, assayed by propidium iodide fluorimetry. Halothane = 2.7%, isoflurane = 4.0%, [H²O²]= 1.0 mM. N = 4 for each data point. P < 0.05 for: b (halothane vs. no anesthetic, both + hydrogen peroxide), i (isoflurane vs. no anesthetic, both + hydrogen peroxide).