Fig. 1From: Anti-cancer activity of Psoralea fructus through the downregulation of cyclin D1 and CDK4 in human colorectal cancer cellsThe effect on PF on the cell proliferation in human colorectal cancer cells. The cells were plated overnight and then treated with PF for 24 h. Cell proliferation was measured using MTT assay as described in Materials and methods. *P < 0.05 compared to cell without PF treatmentBack to article page