Figure 10.

Number of mast cells into photoaging skin. Numbers of mast cells in skin tissue sections were determined by toluidine blue staining at 400× magnification. Total cells numbers in 1 mm² were counted at three different sites per section. Three to five mice per group were used and mast cell numbers were determined in duplicate. Data are reported as the means ± SD. * p < 0.05 compared to the No group. # p < 0.05 compared to the UV + No group. Abbreviations: LoCPO, low amount CPO; HiCPO, high amount CPO.