Fig. 4From: Influence of mechanical and TGF-β3 stimulation on the tenogenic differentiation of tonsil-derived mesenchymal stem cellsA The concentration of dsDNA on day 7 was measured using the PicoGreen® dsDNA Assay Kit upon application of different mechanical strains. B The amount of total collagen on day 7 was normalized to dsDNA content upon application of different mechanical strainsBack to article page