Figure 2.

Change in ear thickness 4 and 24 h after TPA application. Ear thickness was measured with a digital micrometer 4 and 24 h after application of 2 μg TPA. Abbreviations include Indo (indomethacin), PCE (Polygonum cuspidatum extract), and RV (resveratrol). Results represent means ± SEM. *p ≤ 0.05 compared to no TPA, **p ≤ 0.05 compared to TPA control, ***p ≤ 0.05 compared to indomethacin (Indo).