Research Article

Anticancer Effects of Dihydroartemisinin on Human Esophageal Cancer Cells In Vivo

Figure 3

Examination of Ki-67 immunostaining in Eca9706. The IOD value remarkably decreased in the 2 mg/kg DHA group (b) (14,031 ± 939.3), 10 mg/kg DHA group (c) (8508.6 ± 736), and 50 mg/kg DHA group (d) (1053.2 ± 172.7) when compared with the value in the control group (a) (16642.7 ± 1023.1; ). The arrow points to the Ki-67-positive cell. Scale bars: 50 μm.