Fig. 2.

DPP-4 activity (a) in the faeces before and after administration of vildagliptin for 2 weeks (14 days) and (b) in the caecal content (8 weeks). Mice were fed a control diet, a WD or a WD + vildagliptin (WD+V). Significant differences between conditions are shown as **p < 0.01 and ***p < 0.001 according to one-way ANOVA followed by Tukey’s post hoc test