Figure 5.

Effects of blue LED light on cell metabolism in human keloid fibroblasts. (A,B) Metabolism 24 and 48 h after the treatment in keloid fibroblasts, respectively. (C,D) Metabolism 24 and 48 h after the treatment in perilesional keloid fibroblasts, respectively. Data are expressed as mean ± SEM. Each measure is repeated in triplicate at 24 h and in duplicate at 48 h after treatment. Statistical analysis: * p < 0.05; ** p < 0.01; *** p < 0.001; **** p < 0.0001 vs. control (not irradiated cells), one-way ANOVA followed by Dunnett’s multiple comparison test.