Arrest of osteogenic differentiation at day 14.

<p>(A–D) Individual culture of MG subsections supplemented with BMP-2 in the media no longer procured osteogenic plaques. Scale bar represents 100 µm. (E) The Alamar blue assay demonstrated an increase in cell proliferation on collagen functionalized osteogenic substrates (MG70–90) treated with BMP-2. * statistical difference (p<0.05) between two conditions.