P60. Analysis of hyaluronic acid in the endometrium of women with polycystic ovary syndrome

Ricardo Simoes (BR), Adriana Carbonel (BR), Gisela Sasso (BR), Maria Baracat (BR), José Soares Junior (BR), Paulo Serafini (BR), Edmund Baracat (BR)

[Simoes] Medicine Faculty of University of Sao Paulo – FMUSP, Sao Paulo, Brazil, [Carbonel] Federal University of São Paulo, [Sasso] Federal University of São Paulo, [Baracat] Medicine Faculty of University of Sao Paulo – FMUSP, Sao Paulo, Brazil, [Soares Junior] Medicine Faculty of University of Sao Paulo – FMUSP, Sao Paulo, Brazil, [Serafini] Medicine Faculty of University of Sao Paulo – FMUSP, Sao Paulo, Brazil, [Baracat] Medicine Faculty of University of Sao Paulo – FMUSP, Sao Paulo, Brazil

Introduction: Endometrium extracellular matrix provides wide range of signals at different cellular levels, like cell death and proliferation. In this regard, glycosaminoglycans and proteoglycans, along with growth factors, modulate various stages of angiogenesis, cell proliferation and remodeling of the stroma, which can be important for regulating menses and reducing the proliferative processes. Additionally, it is important for proper fetal-maternal interactions. Objective: Evaluate hyaluronic acid concentration, the enzymes of hyaluronic acid synthases (HAS1, HAS2 and HAS3) in the endometrium of patients with polycystic ovary syndrome (PCOS) and eumenorrheic women. Methods: A total of 20 endometrial samples from 10 patients with PCOS and 10 women with regular menstrual cycles in the proliferative phase, with ages ranging between 20 and 35 years, attended at Gynecology Division of Clinical Hospital of the FMUSP (HC-USP). Profile determination and the concentration of hyaluronic acid was performed by biochemical method of fluorimetric assay (ELISA-like). Its location in the endometrial tissue as well as the dosage of enzymes synthases (HAS1, HAS2 and HAS3) was done by immunohistochemistry and western blotting. To analyze the results Bonferroni test was used (p < 0.05). The calculations were performed with software SPSS version 13. Results: There is a concentration of hyaluronic acid in eumenorrheic women endometrium in proliferative phase when compared with polycystic ovary syndrome. Regarding hyaluronic acid synthases, there was a higher HAS1 and HAS2 reactivity and lower HAS3 reactivity in the PCOS endometrium compared to women with regular menstrual cycles in the proliferative phase. Conclusions: WE suggest that PCOS patients have different composition of hyaluronic acid in relation to a regular cycle in the proliferative phase.