Expression of KAZN was significantly increased in ovarian cancer tissues in GSE105437, GSE18520, GSE27651, GSE36668, GSE38666, GSE40595, GSE66957, GSE69428, GSE54388, and GSE14407 (p = 0.0017, p = 0.0012, p < 0.0001, p = 0.0075, p < 0.0001, p < 0.0001, p < 0.0001, p = 0.0177, p = 0.0133, and p = 0.0049, respectively) (Fig. 1); no statistical difference was detected in GSE29450 (p = 0.0549, supplemental file: Fig. S1). This evidence concerns the gene KAZN and ovarian cancer.