FOXO3 and myocardial infarction: After 15 min of reperfusion, FOXO3α phosphorylation levels were significantly increased in the MI group compared to the sham group (6.22 ± 1.61 vs. 1.68 ± 0.51, p = 0.044), whereas the KYNA treatment significantly reduced FOXO3α phosphorylation levels (0.89 ± 0.36, p < 0.001 vs. MI) (Figure 4A).