Figure 9
From: Photobiomodulation has rejuvenating effects on aged bone marrow mesenchymal stem cells

Effects of multiple doses of PBM on SA-β-Gal activity of young and aged MSCs. Young and aged MSCs underwent a PBM treatment at 3 J/cm2 for 3 (T3) days in a row, while untreated MSCs served as controls. On day 7, the cells were fixed and subjected to SA-β-Gal staining. (A) Shown are representative images of senescent cells. Scale bars: 20 μm. (B) Shown are mean percentages of the SA-β-Gal-stained area for each group as a bar graph. The error bars represent the standard error of mean. ***p < 0.001.