FIG. 5.

Subcutaneous injection of concentrated DA-CM increases the collagen types I and III expression in photoaged mouse dermis. Skin punch biopsies were taken at indicated days post injection of concentrated DA-CM in the mouse skin. Immunohistological staining for collagen type I (A) and collagen type III (B) was measured. The pictures were taken under ×200 magnification. Quantification of the protein levels of collagen type I (C) and collagen type III (D) was measured by ImageJ. Data are mean±SD, n=8, *P<0.05 versus injection of same volume of concentrated DMEM as a control. Color images available online at www.liebertpub.com/scd