Figure 4.
Ursolic acid inhibits inflammation and fibrosis in the mouse heart after doxorubicin treatment. A, H&E staining of heart. a, Sham group; b, Doxorubicin + Ursolic acid group; c, Doxorubicin group. Ursolic acid overtly decreased inflammatory cell infiltration compared with doxorubicin (Bar = 50 μm; arrows indicate inflammatory cells). B, Masson's staining of heart samples. a, Sham group; b, Doxorubicin + Ursolic acid group; c, Doxorubicin group (Bar = 20 μm). Ursolic acid significantly decreased fibrosis compared with the doxorubicin control (n = 5, *P < 0.01)