Baicalin protects against UVB irradiation-induced dermal collagen fiber loss.

<p>(A) Mouse skin samples were fixed in 10% formalin and embedded in paraffin. Each section (6 mm) was stained with masson-trichrome for collagen fibers. Images are representative of results from 5 tissue samples. Original magnification ×40. (B) Bars represent the mean density value of the collagen fiber, which was stained in blue color, from 5 animals (10 measurements/section). Results are shown as means±SD (n = 5). The symbol (#) indicates a significant difference (p<0.05) between the control group and the UVB-irradiated group. Asterisks (*) indicate significant differences of p<0.05, respectively, between the baicalin-treated and non-treated groups of irradiated mice.