Peritoneal tissue histology in 2 different magnifications. Representative images are derived from saline-treated control group (A1, A2), Seprafilm group (B1, B2), APC-WT group (C1, C2), APC-2Cys group (D1, D2), APC-E170A group (E1, E2), and APC-S195A (F1, F2). The numerical scoring of inflammation based on histology (G) is shown in panel (H).