VEGFA and polycystic ovary syndrome: Although data are inconsistence, some reports showed that PCOS women have higher levels of the pro-angiogenic factor, VEGF, and lower levels of the anti-angiogenic factor, soluble form of VEGF receptor-1 (sVEGFR-1 or also known as soluble Fms-like tyrosine kinase-1, sFlt-1), compared to controls both in serum and follicular fluid samples [24,25].