Stimulatory constituents of Eclipta prostrata on mouse osteoblast differentiation.

One flavonoid, diosmetin (1), and two isoflavonoids, 3'-hydroxybiochanin A (2) and 3'-O-methylorobol (3), were isolated from the methanol extract of Eclipta prostrata L. by a bioactivity-guided fractionation technique using primary cultures of mouse osteoblasts as an in vitro assay system. All three compounds significantly increased osteoblast differentiation as assessed by the alkaline phosphatase activity.. Copyright 2008 John Wiley & Sons, Ltd