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Morphology of rat myocardium (hematoxylin and eosin staining; magnification, ×200). Sham, sham-operated animal without ligation; I/R, 30 min ischemia followed by 2 h reperfusion; PPC+I/R, administration of FCG for 5 days prior to the induction of myocardial ischemia. The arrow indicates muscle fiber disarranging and clear hydropic degeneration. FCG, ferulic acid (300 mg/kg), cinnamic acid (200 mg/kg) and glycyrrhizic acid (50 mg/kg).
