Mice underwent 60 min of ischemia and 120 min of reperfusion. Infarct sizes were measured by double staining with Evan’s blue and triphenyl-tetrazolium chloride. Infarct sizes are expressed as the percent of the area at risk (AAR) that underwent infarction. C57BL/6 wildtype mice received vehicle (solutol in 0.9% NaCl [ratio 1:100]) or nobiletin (1mg/kg) equimolar doses of flavone (0.55 mg/kg), tangeritin (0.93 mg/kg), sinensetin (0.93 mg/kg), 5,6,7-trimethoxyflavone (0.78 mg/kg), or 3’,4’,7,8-tetramethoxyflavone (0.85 mg/kg) in solutol:0.9%NaCl (ratio 1:100) 2 hours prior to myocardial ischemia via intraperitoneal injection. (A) Infarct sizes as the percent of AAR; (B) flavone; (C) nobiletin; (C) tangeritin; (E) sinensetin; (F) 3’,4’,7,8-tetramethoxyflavone; (G) 5,6,7-trimethoxyflavone; (n=5–8; mean±SD; p<0.05).