Figure 3.

Immunohistochemistry of PCNA, ssDNA, β-catenin COX-2, iNOS, and nitrotyrosine in mice of group 1. (a) PCNA immunohistochemistry, (b) ssDNA immunohistochemistry, (c) β-catenin immunohistochemistry, (d) COX-2 immunohistochemistry, (e) iNOS immunohistochemistry, and (f) nitrotyrosine immunohistochemistry. Original magnifications: a, d, e, f, × 10; c, × 20; b, × 40. Insets, immunohistochemistry staining for each antibody in the mouse colon from group 10 (Original magnifications, × 10).