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PD protects against caspase-3 and caspase-9 activation in the cortex following middle cerebral artery occlusion. (A) Caspase-3 and (B) caspase-9 activity were measured using fluorometric assay kits. Data are presented as the mean + standard deviation (n = 6 in each group). *P<0.05 vs. sham group; #P<0.05 vs. vehicle group. PD, polydatin.
