Lingaiah S, et al. – In this study, researchers examined the serum concentrations of bone turnover (BTMs) and 25–hydroxyvitamin D (25OHD) in women with polycystic ovary syndrome (PCOS) and determined their possible correlations with metabolic parameters of PCOS. It has been shown that bone formation markers were decreased in younger women with PCOS when compared with healthy women, which may affect bone mass in these women.