Enteral nutrition combined with glutamine promotes recovery after ileal pouch-anal anastomosis in rats

Figure 4 Hematoxylin and eosin staining of the ileal pouch mucosa. A: The integrity of the pouch’s mucosal villi was disrupted in the control group. The villus stroma was loose and irregular, and the villus epithelium showed necrosis, shedding, and atrophy, as well as edema in the lamina propria. The morphology of the pouch mucosa in the (B) EN and (C) IN groups was largely normal; the villus structure was intact and its arrangement was neat, the epithelial cells were arranged regularly, and there was occasional interstitial edema; D: Pathological scores were higher in the EN and IN groups compared with the control group (P < 0.05 for both). However, there was no significant difference between the EN and IN groups (P > 0.05 for both). Bars represent mean ± SD, n = 8. EN: Enteral nutrition; IN: Immune nutrition.