The expression of breast cancer 1, early onset (BRCA1), RAD51, bloom syndrome, RecQ helicase-like (BLM), flap-endonuclease 1 (FEN1), uracil-DNA glycosylase (UNG), damage-specific DNA binding protein 2 (DDB2) and exonuclease 1 (EXO1) were significantly suppressed after 24 h ZEA treatment (Table 5). Here, FEN1 is linked to cancer.