The Relationship between Fibroblast Growth Factor-23, Insulin-Like Growth Factor-1, Bone Mineral Density, Insulin Resistance, and Hyperandrogenemia in Polycystic Ovary Syndrome

Aims: The aim of this study was to find out the association between the Fibroblast Growth Factor-23 (FGF-23), Insulin-Like Growth Factor-1 (IGF-1), androgens, insulin resistance (IR), and bone mineral density (BMD) in patients with PCOS (Polycyctic Ovary Syndrome) and healthy controls is presented. 
Materials and Methods: The FGF-23, IGF-1, and Homeostatic Model Assessment for Insulin Resistance were evaluated in 47 patients with PCOS and 26 healthy females, and BMD was evaluated only in the PCOS group. Then these parameters were compared between groups, according to the presence of IR and hyperandrogenemia. 
Results: The mean FGF-23 was 137.55± 75.42 and 414.81 ± 53.02 (pg/ml), and mean IGF-1 was 28.41 ± 99.69 and 244.26 ± 58.99 (ng/ml) in patients with PCOS and healthy controls, respectively. In PCOS group, the FGF-23 was more significantly decreased in those with IR and amenorrheic. DEXA scores were found to be similar in PCOS group in terms of hyperandrogenemia and IR. 
Conclusions: Our results revealed that FGF-23 levels decreased in patients with PCOS, which was particularly significant in patients with IR. According to our findings; the low level of FGF-23 in the PCOS group with IR suggests that this marker may also be associated with the complications of PCOS, but to clarify this hypothesis, this marker needs to be investigated.