PANE increased the number of Gr-1
cells in the duodenum. Mice were treated as the protocol described in the Methods section. Representative sections stained for Gr-1 and IL-10 are shown (original magnification, x 200). Cells with blue arrows indicate IL-10+ cells. Green arrows indicate Gr-1+IL-10+ cells showing red signals around the dark blue nuclei. Quantitative data are shown in Table 3.