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. 2018 Oct 25;19(11):3327. doi: 10.3390/ijms19113327

Figure 6.

Figure 6

Effect of E. officinalis on skin aging–related mRNA expression. (A) mRNA expression of MMP-1 and type I procollagen in UVB-irradiated NHDFs. The mRNA levels of (B) MMP-1 and (C) type I procollagen were quantified and normalized to the corresponding glyceraldehyde-3-phosphate dehydrogenase (GAPDH) value. Densitometry data are expressed as the percentage relative to the level in 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, ## p < 0.01, and ### p < 0.001 versus the UVB-irradiated control.