Fig. 3. Myocardial infarct size expressed as a percentage of the left ventricular area at risk in rats receiving saline (CON), 1.0 MAC isoflurane (ISO), 0.3 mg/kg morphine (MOR), the combination of 1.0 MAC isoflurane and 0.3 mg/kg morphine (ISO + MOR), and 5-hydroxydecanoic acid in the presence of isoflurane (ISO + 5-HD) or morphine (MOR + 5-HD) and in the presence of isoflurane and morphine (ISO + MOR + 5-HD). *Significantly (P < 0.05) different from CON. †Significantly (P < 0.05) different from ISO. §Significantly (P < 0.05) different from MOR. ‡Significantly (P < 0.05) different from ISO + MOR.