Other studies showed reduced GSTP1 gene expression in prostate, endometrial, hepatocellular, and ovarian cancers (Chan et al., 2005; Li et al., 2015; Lin et al., 2001; Martignano et al., 2016; Mian et al., 2016; Shilpa et al., 2014; Zelic et al., 2016; Zhang et al., 2015). The gene discussed is GSTP1; the disease is ovarian cancer.