TGFB1 and polycystic ovary syndrome: It was found that the angiogenesis, TGF-β, Wnt and cell regulation pathways were enriched in the gene modules positively correlated with PCOS (Fig. 2A), while the cholesterol, fatty acid, carbohydrate metabolism, phosphorylation and autophagy regulation pathways were enriched in the gene modules negatively correlated with PCOS (Fig. 2B).