Figure 8.

Effect of E. officinalis on mitogen-activated protein kinase (MAPK) signaling–related proteins. (A) The protein levels of the phosphorylation of c-Jun N-terminal kinase (p-JNK), extracellular signal-regulated kinase (p-ERK), and p38 (p-p38) in UVB-irradiated NHDFs were measured by Western blot analysis. The band intensities for (B) p-JNK, (C) p-ERK, and (D) p-p38 were quantified and normalized to the corresponding β-actin value. Densitometry data are expressed as the percentage relative to the non-irradiated control and shown as the mean ± SD. * p < 0.05 and ** p < 0.01 versus the non-irradiated control. # p < 0.05 and ## p < 0.01 versus the UVB-irradiated control.