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. 2013 Apr 16;104(8):1794–1804. doi: 10.1016/j.bpj.2013.02.052

Figure 2.

Figure 2

1D uptake of active TGF-β1 into articular cartilage. (A) Depth-dependent variation of endogenous levels of latent TGF-β1 in cartilage explants after incubation in TGF-β-free solution. (B) Depth-dependent levels of TGF-β1 (endogenous latent + exogenous active) after exposure of the articular surface to a bath of 10 ng/mL active exogenous TGF-β1. ∗p < 0.001 indicates significant increase above corresponding endogenous levels. Both 20 and 40 h uptake values were compared with 40 h endogenous control.