The number of caspase-3-positive cells was 0.78±0.01/mm2 in the sham group, 964.80±52.31/mm2 in the ischemia group, 654.45±87.82/mm2 in the ischemia and 50,000 units ulinastatin group, and 447.74±38.42/mm2 in the ischemia-and 100,000 units ulinastatin group (Fig. 2D). Here, CASP3 is linked to ischemia.