After 7 days of colitis induction, a significantly higher expression of Caspase-3 in the colon wall was found in the colitis group (Tukey post hoc, p < 0.05), and after 21 days after colitis induction, a higher expression was observed in the noninflammatory group (Tukey post hoc, p < 0.001). Here, CASP3 is linked to colitis.