Fig. 6

D-mannose exhibited no obvious effect on osteogenesis in vivo. a The representative optical microscope images of rat bone marrow stroma cells (rMSCs) in four groups. b The representative images of ALP (the above two lines) and ARS (the below two lines) stain. c Quantification of ALP and ARS. d Relative expression of osteogenesis-relating genes including rAlp, rRunx2, rOcn, and rSp7. Data are expressed as mean ± SD