FABP4 and polycystic ovary syndrome: Significantly upregulated critical genes governing adipocyte cell differentiation and function in newly-formed adipocytes from SC abdominal ASCs of PCOS versus control women were identified at days 3, 7, and 12, including PPARγ, CEBPα, AGPAT2, ADIPOQ, PLIN1, SLC2A4 (Fig. 2, right panel), FABP4 and LPL (Additional file 2: Supplemental Fig. 7A–B, right panel).