The changes in lipid peroxidation products (4HNE + MDA) in stomachs obtained from the stressed rats treated with and without F13A (150 µg/kg b.w., i.v.) during gastric lesion healing on the 1st, 3rd, 5th or 10th day after the end of stress induction. Data are presented as box plots showing the range, quartiles (25–75 %) and median. **p < 0.01 and ***p < 0.001 vs. the control group, +
p < 0.05 vs. the WIRS 1 day group and $$$
p < 0.001 vs. the WIRS 3 day group (n = 8–10 rats/group)