FIGURE 3.

Gene expression of PTGS1 and PTGES in neonatal human dermal fibroblasts, 24 h after irradiation with UV‐only and complete solar light. Photoprotection, or lack of, is denoted by the color of bars as shown in the legend. Both filters are at 25% active level. Fold changes were calculated using the ∆∆CT method and converted to log₂ values in the graphs. Percentage differences in gene expression for unprotected against protected fibroblasts are shown in the table: Red % change = reduction in expression. Expression assayed with TaqMan qPCR. Data represents mean ± SEM, n = 3. *p < = 0.05, **p < = 0.01, ***p < = 0.001.