Figure 6

Increased proliferation rate and number of nuclei in muscle layers 7 d after HI. Representative intestinal sections of (A) control and (B) HI animals were stained by immunohistochemistry for Ki67. For each experimental group, proliferation rate in (C) circular and (D) longitudinal and nuclei numbers in (E) circular and (F) longitudinal muscle layer were counted, and the mean cell counts per power field per animal are given. The proliferation rate (%) is expressed per 1000 µm². The arrows indicate Ki67⁺ cells within the muscle layers. The scale bar in panels A and B represents 50 µm. *p < 0.05.