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Open Access Research article

Ethinylestradiol30μg-drospirenone and metformin: could this combination improve endothelial dysfunction in polycystic ovary syndrome?

Ioana Rada Ilie1*, Ioan Marian2, Teodora Mocan3, Razvan Ilie4, Lucian Mocan5, Ileana Duncea1 and Carmen Emanuela Pepene1

Author Affiliations

1 Department of Endocrinology, University of Medicine and Pharmacy, 3-5 Louis Pasteur, 400349, Cluj-Napoca, Romania

2 Department of Internal Medicine-Cardiology, University of Medicine and Pharmacy, Cluj-Napoca, Romania

3 Departmen of Physiology, University of Medicine and Pharmacy, Cluj-Napoca, Romania

4 Department of Obstetrics and Gynecology, University of Medicine and Pharmacy, Cluj-Napoca, Romania

5 3-rd Department of Surgery, University of Medicine and Pharmacy, Cluj-Napoca, Romania

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BMC Endocrine Disorders 2012, 12:9  doi:10.1186/1472-6823-12-9

Published: 19 June 2012

Abstract

Background

We are hereby investigating for the first time the effect of the association ethinylestradiol30μg-drospirenone 3mg (DRP/EE30μg) plus metformin and weight loss on endothelial status and C-reactive protein (hsCRP) levels in polycystic ovary syndrome (PCOS).

Methods

25 young women with PCOS (mean age 22.76 ± 0.83 years, body mass index (BMI): 28.44 ± 6.23) who completed the study were prospectively evaluated. The oral contraceptive- DRP/EE30μg (21 days/month) and metformin (1700 mg daily) were administered for 6 months to the PCOS group. Additionally, the 15 overweight and obese patients (BMI > 25 kg/m2) were instructed in a diet of no more than 1500 cal daily. Primary outcome measures were surrogate markers of cardiovascular disease and included endothelial function, i.e. flow-mediated dilatation (FMD) on the brachial artery and endothelin-1 levels, as well as hsCRP concentrations, body composition (measured by whole-body dual-energy X-ray-absorptiometry) and insulin resistance. Variables were assessed at baseline, as well as after our medical intervention.

Results

The combination between DRP/EE30μg plus metformin combined with weight loss triggered a significant improvement in the FMD values (FMD-PCOSbasal 3.48 ± 1.00 vs FMD-PCOS6 months7.43 ± 1.04, p = 0.033), as well as body composition and insulin insensitivity (p < 0.05). Regarding hsCRP levels, there was no significant intragroup (PCOS6months – PCOSbasal) difference.

Conclusion

A 6-month course of metformin- DRP/EE30μg (associated with weight loss) improves the endothelial dysfunction in PCOS and shows neutral effects on hsCRP concentrations as an inflammation marker. These data demand for reevaluation of the medical therapy in PCOS, particularly in women with additional metabolic and cardiovascular risk factors (ClinicalTrials.gov Identifier: NCT01459445).

Keywords:
Ethinylestradiol30μg-drospirenone; Flow-mediated dilatation; Endothelial dysfunction; HsCRP; Metformin; Polycystic ovary syndrome