A. DAI of DSS colitis mice over time (N=15–43, combined data of all cohorts, compared to day 1). B-E. Histology (B, H&E staining), histological damage score (C), MPO activity (D) and tissue pH (E) of the colon from healthy control (HC, N=8–11) and DSS colitis mice (N=5–10) at different time points. Arrows in (B) denote infiltrating inflammatory cells. F. Study design with injection regimen (color coded) and daily VMR measurements (80 μl colorectal distension, day 1 - day 5) after NFEPP administration (0.4 mg/kg s.c.) in DSS colitis mice (N=5). Abbreviations: BID, bis in die (twice daily). DAI, disease activity index. DSS, dextran sulphate sodium. H&E, haematoxylin and eosin. MPO, myeloperoxidase. * p<0.05. ** p<0.01. *** p<0.001. A, C, D: Kruskal-Wallis test, Dunńs test. E: Welch ANOVA, Dunnett T3 test. F: Friedman test, Dunńs test.