Topical Anti-Inflammatory Activity of Essential Oils of Alpinia calcarata Rosc., Its Main Constituents, and Possible Mechanism of Action

Figure 11

Histopathological analysis of TPA-induced ear edema in mice. (a) CIN-2.5%, (b) CIN-0.5%, (c) CIN-0.1%, (d) TPN-10%, (e) TPN-2%, and (f) TPN-0.4%. Images are the ear sections taken at 10x and 40x magnifications. The total thickness and epidermal area thickness were marked in micrometers, and the red arrows show the neutrophil infiltration in (b).