Effects of crocetin on experimental atherosclerosis in rats Effect of Fructus Ligustri Lucidi on calcium metabolism and vitamin D-dependent gene expressions in ovariectomized rats Induction of Plastrum testudinis extract to mesenchymal stem cells differentiation into osteoblast through up-regulating expression of vitamin D receptor Effects of berberine on lipid metabolism and vitamin D receptor as well as insulin-induced gene 2 gene expression of rabbits