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Sections from colonic tissue were stained with terminal deoxynucleotide transferase dUTP nick-end labeling (TUNEL) staining kit (magnification, × 100). The sections were counterstained with DAPI. TUNEL positive cells were counted and scored. The data represent mean ± SD (n = 4); *P < 0.05 vs. normal group; #P < 0.05 vs. DSS group.
