FIGURE 3.

Comparison of barrier measures after corticotropin‐releasing hormone (CRH) stimulation followed by sham vs transcutaneous vagal stimulation. A. Lactulose:mannitol ratios: vagal stimulation was associated with a reduced lactulose:mannitol ratio compared with those associated with sham stimulation (p = 0.009; Wilcoxon matched‐pairs signed rank test). B. Plasma I‐FABP concentrations: there was no significant difference between sham and vagal stimulation (p = 0.90). The horizontal bars represent median values