Figure 2. Ar-turmerone repressed the proliferative rate of U251 cells in vivo. (A) Model of the animal experiments. (B, C) The proliferation of tumor tissues from mice treated with DMSO or ar-turmerone. (D) The tumor weights of mice treated with DMSO or ar-turmerone. (E) PCNA and KI67 expression in tumor tissues from mice treated with DMSO or ar-turmerone. (F) Hematoxylin and eosin staining was performed to detect liver and kidney injuries in mice treated with DMSO or ar-turmerone. *P < 0.05; **P < 0.01.