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Minerva Obstetrics and Gynecology 2021 Nov 26

DOI: 10.23736/S2724-606X.21.04983-6

Copyright © 2021 EDIZIONI MINERVA MEDICA

language: English

Insulin-sensitizing effect and antioxidant action of alpha lipoic acid in oligomenorrheic women with polycystic ovary syndrome

Elisa SCARINCI 1, Giovanna NOTARISTEFANO 1, 2 , Anna TROPEA 1, Simone M. FABOZZI 1, 2, Ornella ALESIANI 1, Elisabetta MEUCCI 1, 2, Andrea SILVESTRINI 1, 2, Marco CINTONI 3, Alice DITERLIZZI 1, 2, Antonio LANZONE 1, 2, Rosanna APA 1, 2

1 Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy; 2 Università Cattolica del Sacro Cuore, Rome, Italy; 3 University of Rome Tor Vergata, Rome, Italy


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BACKGROUND: Polycystic ovary syndrome (PCOS) is a low-grade inflammatory disease characterized by anovulation and hyperandrogenism, associated with insulin-resistance. The aim of our study was to investigate the effects of a treatment with alpha-lipoic acid on clinical, endocrine and metabolic features of women affected by PCOS.
METHODS: In this pilot cohort study, 60 women (30 hyperinsulinemic and 30 normoinsulinemic patients; age 15-34 years) were enrolled and clinical, hormonal and metabolic parameters were evaluated before and after a six-months treatment with alpha-lipoic acid 800 mg/daily. Investigations were performed during the early follicular phase of the menstrual cycles (spontaneous or progestin-induced cycles): after fasting overnight for 10-12 h, blood samples were collected for hormonal and metabolic assays and oral glucose tolerance test and pelvic ultrasound were performed. Total Antioxidant Capacity was expressed as LAG time.
RESULTS: The treatment was able to increase the number of menstrual cycles during the 6 months considered in all patients and to reduce BMI in the normoinsulinemic population. In hyperinsulinemic patients we observed a statistically significant reduction in AUC-I as well as an increase of total antioxidant capacity.
CONCLUSIONS: The relevant results in restoring menstrual cyclicity in both groups, in addition to the antioxidant effect, confirm that hyperinsulinemia influences only the metabolic response to the treatment, without predict the ovarian function. Even if alpha-lipoic acid mechanisms of action is not clear and further studies are needed to confirm these results, it could be considered a valid therapeutic alternative to traditional drugs, without side effects as reported.


KEY WORDS: Polycystic ovary syndrome; Antioxidants; Insulin resistance; Female; Menstrual cycle

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