Myocardial infarct size expressed as a percentage of the left ventricular area at risk. Hyperglycemia (HG) group was administered 50% glucose during occlusion and until 1 h after reperfusion. CON received saline just before reperfusion; LF or HF, 0.15 or 0.5 mg/kg fasudil hydrochloride; and DIA, 10 mg/kg diazoxide. Data are mean ± SD and n = 10 for each. *Significantly (p < 0.05) different from control.