Figure 6From: Osteoblastic differentiation and stress response of human mesenchymal stem cells exposed to alternating current electric fields NADH, FAD, Lipofuscin. NADH, FAD, and lipofuscin contributions from hMSCs undergoing osteogenic differentiation. Images were taken in the treated (stimulated) and untreated (nonstimulated) groups on days 0, 5, 10, 15, 20. Scale Bar on bottom right corner is 200 μm.Back to article page