CXCL8 and polycystic ovary syndrome: Stokkeland et al. [19] reported increased serum CXCL8 and CXCL10 levels at week 10 of pregnancy in PCOS women, whereas Hatziagelaki et al. [20] reported that serum CXCL11 levels were strongly associated with prolactin and 17-OH-progesterone levels in PCOS.