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Hif-1α protein expression (Western blotting) in LIMA and GSV. (A) In LIMA samples, Hif-1 α protein expression in the RIPC group was higher than that in the control group. (B) In GSV samples, there was no significant difference of the Hif-1α levels in vein between RIPC and control group. GSV, great saphenous vein. LIMA, left internal mammary artery. *P < 0.05 vs. control group.
