APOC3 and polycystic ovary syndrome: qPCR and western blot were used to examine ApoC3 expression in the mouse ovarian tissues, and the results indicated that ApoC3 mRNA and protein levels in the ovaries were increased in the PCOS mice from Week 2, compared with the control mice (Fig. 4), and the expression of ApoC3 was increased with progression of PCOS.