Fig. 3From: Low-dose strontium stimulates osteogenesis but high-dose doses cause apoptosis in human adipose-derived stem cells via regulation of the ERK1/2 signaling pathwayEffect of SrRan on mineralization of hASCs. a Effect of SrRan added at the indicated concentrations to hASCs in osteogenic differentiation medium. Extracellular calcium deposition was measured with Alizarin Red S staining at day 21. b Extracellular calcium deposition was quantified with a colorimetric method on the indicated days (d). GM growth medium, OM osteogenic medium, Sr strontiumBack to article page