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TUNEL staining of the posterior wall of the left ventricle (non-infarcted tissue) was performed8 weeks after surgery. (A) Representative pictures of TUNEL staining. Scale bar, 50 μm. (B) Quantitation of TUNEL-positive cells in the four groups.*P < 0.01 vs. wild-type (WT)-sham group, #P < 0.05 vs. WT-MI group, n = 8 in each group.
