Among the most recently studies, Kachuei et al. (6) from Iran has also shown significantly higher levels of serum anti-TPO in patients with PCOS than in controls (216 ± 428 vs. 131 ± 364 IU/mL; P = 0.04); however, serum levels of anti-TG did not show any difference between groups. Here, TPO is linked to polycystic ovary syndrome.