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VEGF-A secretion of rBMSCs on various coatings detected by ELISA at days 1, 4 and 7.
Notes: *P<0.05, **P<0.01 when compared with C0. #P<0.05 when compared with C8. +P<0.05 when compared with C16. C0, HA coating; C8–C16, differently CHA coatings.
Abbreviations: CHA, carbonated hydroxyapatite; ELISA, enzyme-linked immunosorbent assay; HA, hydroxyapatite; rBMSCs, rat bone-marrow-derived mesen-chymal stem cells; VEGF-A, vascular endothelial growth factor-A.
