FIG. 1.

Human mesenchymal stem cells (hMSC) from three aged, postmenopausal female osteoporotic donors are able to osteogenically differentiate after chemical stimulation in osteogenic induction media for 14 days in 2D monolayer culture. Alizarin Red staining for calcium accretion (A) in growth media or (B) osteogenic media. Endogenous alkaline phosphatase (EALP) activity of hMSC after 14 days (C) in growth media or (D) in osteogenic induction media. EALP activity indicated in bright green; nuclei shown in blue. Color images available online at www.liebertpub.com/tea