RT-qPCR results showed that the expression levels of 7 core genes, including ATF3, BNIP3, DDIT4, LPIN1, NOS2, NQO1 and SLC2A1, were significantly downregulated in GCs of PCOS patients, whereas no significant difference was detected in SLC2A6 (Figures 8A–H). The gene discussed is DDIT4; the disease is polycystic ovary syndrome.