Polycystic ovary syndrome is associated with increased osteopontin levels

WOS: 000372072300007PubMed ID: 26701868Objective: Osteopontin (OPN) is a multi-functional secreted glycoprotein that plays a crucial role in glucose metabolism and inflammatory process. Growing evidence suggests that there is a link between OPN and ovarian function. However, no such link has yet been found for OPN in polycystic ovary syndrome (PCOS). Our aim was to ascertain whether circulating OPN levels are altered in women with PCOS and to determine whether OPN levels differ between the follicular phase and mid-cycle of the menstrual cycle in eumenorrheic women. Design and methods: In total, 150 women with PCOS and 150 age-and BMI-matched controls without PCOS were recruited for this prospective observational study. OPN levels were measured using ELISA. Metabolic parameters were also determined. Results: Circulating OPN levels were significantly elevated in PCOS women compared with controls (69.12 +/- 31.59 ng/ml vs 42.66 +/- 21.28 ng/ml; P