Effects of EGb761, quecertin and bilobalide on the expression of caspase-3 in the hypoxia-reoxygenated cardiomyocytes. Caspase-3 was detected with Western blot analysis using the monoclonal antibody against caspase-3. Anti-actin antibody was used as internal control. HO: hypoxia; HR: hypoxia-reoxygenation. Drug concentrations of EGb761, quecertin and bilobalide were 1, 10 and 100 μg/ml respectively. These representative data were obtained from five independent experiments.