Fig. 5From: Synthesis of acyl oleanolic acid-uracil conjugates and their anti-tumor activityCell cycle progress detection by flow cytometry assay after PI staining of Hep-G2 cells following treatment with compound 4c: a control cells; b, c, d cells treated by 4c for 48 h; e corresponding histograms. *P < 0.05 and **P < 0.01 compared with the controlBack to article page