Sleeve Gastrectomy and Roux-en-Y Gastric Bypass Alter the Gut-Brain Communication

Figure 2

The VSG operation increased the density of vagal afferent input into the NTS and DMV (A), (C) with respect to sham-operated controls (A), (B). The RYGB operation decreased the density of vagal afferent input into NTS with no changes in DMV. (B)–(D) Representative coronal sections of the intermediate NTS revealing IB4-immunoreactive fibers. All data are expressed as average ± SEM; ; scale bar = 200 μm.