Fig. 2. Myocardial infarct size depicted as a percentage of the left ventricular area at risk in rabbits receiving N -nitro-l-arginine methyl ester (l-NAME; top panel ), aminoguanidine (AG; second panel ), 1400W ( third panel ), or 7-nitroindazole (7-NI; bottom panel ) before (trigger [T]) administration of isoflurane (ISO) or prolonged coronary artery occlusion (mediator [M]) or at corresponding time points in the absence of isoflurane pretreatment. Each point represents a single experiment. * Significantly ( P < 0.05) different from control (CON).