Redox Mechanisms of AVS022, an Oriental Polyherbal Formula, and Its Component Herbs in Protection against Induction of Matrix Metalloproteinase-1 in UVA-Irradiated Keratinocyte HaCaT Cells

Figure 2

Inhibition of UVA- (4 J/cm²) induced HaCaT cell toxicity by the whole formula (a) and individual component herbs (b) of AVS022 and GA (c). Data was represented as mean ± SEM. The statistical significance of differences between the control and irradiated cells was assessed by Student’s 𝑡-test and between UVA-irradiated and herb extracts- or GA-treated cells by one-way ANOVA followed by Dunnett’s test. ^###𝑃<0.001 compared with irradiated cells. *𝑃<0.05; **𝑃<0.01; ***𝑃<0.001 compared with nontreated cells exposed to UVA.