Fig. 1
From: Activity of Porophyllum ruderale leaf extract and 670-nm InGaP laser during burns repair in rats
Cross-sections of second-degree burns in rats in different treatment groups. C: untreated control; L: treated with 670-nm InGaP laser; P: treated with the Porophyllum ruderale extract PL: treated with the P. ruderale extract and 670-nm InGaP laser. Samples were collected from each group 7, 14 and 21 days after injury. The sections were stained with Masson’s trichrome. (*) Wound area; (→) collagen fibers. Bar = 100 μm