BCL2 and ischemia: When the ratio of Bax to Bcl-2 in the sham group was set at 1.00, the ratio of Bax to Bcl-2 was 8.46±1.50 in the ischemia group, 4.85±0.83 in the ischemia and 50,000 units ulinastatin group, and 2.34±0.57 in the ischemia and 100,000 units ulinastatin group.