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Biological Trace Element Research

, Volume 170, Issue 2, pp 271–278 | Cite as

Effects of Zinc Supplementation on Endocrine Outcomes in Women with Polycystic Ovary Syndrome: a Randomized, Double-Blind, Placebo-Controlled Trial

  • Mehri Jamilian
  • Fatemeh Foroozanfard
  • Fereshteh Bahmani
  • Rezvan Talaee
  • Mahshid Monavari
  • Zatollah Asemi
Article

Abstract

The current study was conducted to evaluate the effects of zinc supplementation on endocrine outcomes, biomarkers of inflammation, and oxidative stress in patients with polycystic ovary syndrome (PCOS). This study was a randomized double-blind, placebo-controlled trial. Forty-eight women (18–40 years) with PCOS diagnosed according to Rotterdam criteria were randomly assigned to receive either 220 mg zinc sulfate (containing 50 mg zinc) (group 1; n = 24) and/or placebo (group 2; n = 24) for 8 weeks. Hormonal profiles, biomarkers of inflammation, and oxidative stress were measured at study baseline and after 8-week intervention. After 8 weeks of intervention, alopecia (41.7 vs. 12.5 %, P = 0.02) decreased compared with the placebo. Additionally, patients who received zinc supplements had significantly decreased hirsutism (modified Ferriman-Gallwey scores) (−1.71 ± 0.99 vs. −0.29 ± 0.95, P < 0.001) and plasma malondialdehyde (MDA) levels (−0.09 ± 1.31 vs. +2.34 ± 5.53 μmol/L, P = 0.04) compared with the placebo. A trend toward a significant effect of zinc intake on reducing high-sensitivity C-reactive protein (hs-CRP) levels (P = 0.06) was also observed. We did observe no significant changes of zinc supplementation on hormonal profiles, inflammatory cytokines, and other biomarkers of oxidative stress. In conclusion, using 50 mg/day elemental zinc for 8 weeks among PCOS women had beneficial effects on alopecia, hirsutism, and plasma MDA levels; however, it did not affect hormonal profiles, inflammatory cytokines, and other biomarkers of oxidative stress.

Keywords

Zinc Supplementation Polycystic ovary syndrome Reproductive outcomes Inflammation Oxidative stress 

Notes

Acknowledgments

The current study was supported by a grant from the Vice-chancellor for Research, AUMS, and Iran. The authors would like to thank the staff of Kosar Clinic (Arak, Iran) for their assistance in this project.

Conflict of Interest

The authors declare that they have no competing interests.

Authors’ Contributions

Z.A. contributed in the conception, design, statistical analysis, and drafting of the manuscript. M.J., F.F., F.B., R.T., and M.M. contributed in data collection and manuscript drafting. Z.A. supervised the study. All authors approved the final version for submission.

Funding

The study was supported by a grant (no. 93164) from Arak University of Medical Sciences.

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Mehri Jamilian
    • 1
  • Fatemeh Foroozanfard
    • 2
  • Fereshteh Bahmani
    • 4
  • Rezvan Talaee
    • 3
  • Mahshid Monavari
    • 4
  • Zatollah Asemi
    • 4
  1. 1.Department of Gynecology and Obstetrics, School of MedicineArak University of Medical SciencesArakIslamic Republic of Iran
  2. 2.Department of Gynecology and Obstetrics, School of MedicineKashan University of Medical SciencesKashanIslamic Republic of Iran
  3. 3.Department of Dermatology, School of MedicineKashan University of Medical SciencesKashanIslamic Republic of Iran
  4. 4.Research Center for Biochemistry and Nutrition in Metabolic DiseasesKashan University of Medical SciencesKashanIslamic Republic of Iran

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