Fig. 3
From: Strontium-incorporated bioceramic scaffolds for enhanced osteoporosis bone regeneration

The extract from Sr-N-MBG scaffolds stimulated the angiogenic ability of HUVECs in vitro. a Tube formation assay of HUVECs cultured in different scaffold extracts for 4 h. b Quantitative analysis of the mean size of meshes and total length of isolation branches. Notes: *P < 0.05 versus the control N-MBG group; #P < 0.05 versus the 1Sr-N-MBG group. c Western blot analysis for the expression of VEGF