Diosgenin induces hypoxia-inducible factor-1 activation and angiogenesis through estrogen receptor-related phosphatidylinositol 3-kinase/Akt and p38 mitogen-activated protein kinase pathways in osteoblasts. - Yen,M.L.; Su,J.L.; Chien,C.L. (Mol Pharmacol, 2005)