Liquiritigenin was found to effectively inhibit the invasiveness of breast cancer cells by inhibiting DNA methyltransferase (DNMT) activity and increasing (breast cancer 1) BRCA1 expression [29], and naringenin treatment regulated endoplasmic reticulum (ER)-stress mediation to prevent breast cancer cell proliferation [32]. The gene discussed is DNMT1; the disease is breast carcinoma.