Figure 2.

Glycyrrhizin inhibits tumor growth in PDX mice. (a) indicates the morphology of lung cancer cells from the two groups by HE staining, bar = 100 μm. (b) indicates the size of tumors from the two groups. Tumors were excised from the two groups and the tumor sizes between the two groups were compared. (c) indicates the average weight of tumors in the two groups. The difference of tumor weights between the glycyrrhizin treatment and DMSO treatment (model) was significant. ^∗∗p < 0.01, as compared to the model control by t-test.