MKI67 and neoplasm: As shown in Figure 7, the positive rate of Ki67 cells from patient was not statistically different from that in the blank control group, nor was there statistically significant difference in the Ki67 positive cell rate between the cisplatin treatment group and the blank control group, but the detection rate of Ki67 positive cells was significantly higher in the blank control group compared with the tumor tissue of plumbagin and the combination of plumbagin and cisplatin.