In addition, Liu et al. (2016) found that the counts of CD3+ cells, CD4+ cells, NK cells, and the CD4+/CD8+ ratios were significantly lower in the sevoflurane group, which meant that the function of the lymphocyte subsets in cervical cancer patients undergoing radical hysterectomy seemed to be better in the presence of propofol than it is with sevoflurane. This evidence concerns the gene CD4 and cervical cancer.