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Vanillic acid (VA) pretreatment influences the activity of caspase-3 induced by hypoxia/reoxygenation (H/R) injury, while AMPKα2-siRNA abrogates this effect. The column bar graph represents the activity of caspase-3 in the different groups. Data are expressed as the mean ± SEM, n = 3. ∗∗p < 0.01 vs. control group; ▲▲p < 0.01 vs. H/R group; ##p < 0.01 vs. VA+H/R group. A.U. is the abbreviation for absorbance unit.
