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Hormones

, Volume 8, Issue 4, pp 279–285 | Cite as

Effect of zinc supplementation on insulin resistance and components of the metabolic syndrome in prepubertal obese children

  • Mahin Hashemipour
  • Roya Kelishadi
  • Javad Shapouri
  • Nizal Sarrafzadegan
  • Masoud Amini
  • Naser Tavakoli
  • Ahmad Movahedian-Attar
  • Parisa Mirmoghtadaee
  • Parinaz Poursafa
Research paper

Abstract

OBJECTIVE

Zinc, an essential trace element and a component of many enzymes, is involved in the synthesis, storage and release of insulin. The aim of the present study was to assess the effect of zinc supplementation on insulin resistance and components of the metabolic syndrome in prepubertal obese children.

DESIGN

This triple-masked, randomized, placebo-controlled cross-over trial was conducted among 60 obese Iranian children in 2008. Pertinent clinical findings, fasting serum glucose, insulin and lipid profile were assessed. Participants were randomly assigned to two groups of equal number; one group received 20mg elemental zinc and the other group received placebo on a regular daily basis for eight weeks. After a 4-week wash-out period, the groups were crossed over.

RESULTS

The mean age of participants was 9.1 ± 1.1 years. After receiving zinc, the mean fasting plasma glucose (FPG), insulin and HOMA-IR decreased significantly, while body mass index (BMI), waist circumference (WC), LDL-C and triglycerides (TG) did not significantly change. After receiving placebo, the mean FPG, insulin and HOMA-IR increased significantly, while BMI, WC, LDL-C and TG showed a non-significant increase.

CONCLUSION

Besides lifestyle modification, zinc supplementation might be considered as a useful and safe additional intervention treatment for improvement of cardiometabolic risk factors related to childhood obesity.

Keywords

Cardiometabolic risk factors Childhood obesity Metabolic Syndrome Pre-pubertal stage Zinc 

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Copyright information

© Hellenic Endocrine Society 2009

Authors and Affiliations

  • Mahin Hashemipour
    • 1
  • Roya Kelishadi
    • 2
  • Javad Shapouri
    • 1
  • Nizal Sarrafzadegan
    • 2
  • Masoud Amini
    • 1
  • Naser Tavakoli
    • 3
  • Ahmad Movahedian-Attar
    • 3
  • Parisa Mirmoghtadaee
    • 3
  • Parinaz Poursafa
    • 4
  1. 1.Isfahan Endocrine & Metabolism Research CenterIran
  2. 2.Pediatric Preventive Cardiology Department, Isfahan Cardiovascular Research CenterIsfahan University of Medical SciencesIsfahanIran
  3. 3.Faculty of PharmacyIsfahan University of Medical SciencesIsfahanIran
  4. 4.Science & Research UniversityTehranIran

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