Research Article

Polygoni Multiflori Radix Preparat Delays Skin Aging by Inducing Mitophagy

Figure 3

Effect of PMRP on the physicochemical property of the aged rat skins. The physicochemical property of the aged rat skins was detected among different groups using H&E (a), Masson’s trichrome (b), and Sirius red stain (c). The percentage of the expression area of fibrous tissue (d) and the ratio of type I to type III collagen of the skin tissues (e) were also detected, respectively. The of three independent samples are shown. The expression levels among the different groups were determined by one-way ANOVA. The difference is significantly different () where the letters over the bars are different.