After 24 h reperfusion after ischemia, the expression levels of TGF-β2 significantly increased, and 1.5% ISO post-conditioning obviously increased the expression compared with the I/R group (0.16 ± 0.01 in the ISO group vs. 0.12 ± 0.01 in the I/R group, P < 0.05). Here, TGFB2 is linked to ischemia.