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Figure 3: The expression of Bax, Bcl-2, and caspase-3 detected by immunohistochemistry. IR injury promoted Bax and caspase-3 expression but suppressed Bcl-2 expression. However, ulinastatin suppressed Bax and caspase-3 expression and promoted Bcl-2 expression. Compared with IR group (). Compared with Sham group (). Values are the means ± SD, per group.