Effect of zinc supplementation on body mass index and serum levels of zinc and leptin in pediatric hemodialysis patients
Authors El-Shazly A, Ibrahim SA, El-Mashad G, Sabry JH, Sherbini N
Received 22 August 2015
Accepted for publication 30 October 2015
Published 10 December 2015 Volume 2015:8 Pages 159—163
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Prasun Datta
Peer reviewer comments 2
Editor who approved publication: Professor Pravin Singhal
Ahmed Nabih El-Shazly,1 Soha Abd El-Hady Ibrahim,1 Ghada Mohamed El-Mashad,2 Jehan H Sabry,3 Nashwa Said Sherbini1
1Department of Pediatrics, Faculty of Medicine, Benha University, Banha, 2Department of Pediatrics, Faculty of Medicine, Menoufia University, Shibin Al Kawm, 3Department of Clinical and Chemical Pathology, Faculty of Medicine, Benha University, Banha, Egypt
Introduction: Zinc is an essential trace element for human nutrition, and its deficiency is associated with anorexia, poor food efficiency, growth retardation, and impaired neurological and immune systems. The zinc-deficiency rate is particularly high in many disease states, such as with end-stage renal disease patients undertaking hemodialysis. The aim of this study was to determine the effect of zinc supplementation on body mass index (BMI) and serum levels of zinc and leptin in pediatric hemodialysis patients.
Patients and methods: This was a prospective clinical trial study in which 60 hemodialysis patients were randomly divided into two groups: group I received 50–100 mg zinc sulfate (equivalent to 11–22 mg elemental zinc) according to age, sex, and nutritional status of the child; and group II received placebo (cornstarch) twice daily for 90 days. Anthropometric measurements were taken, and serum zinc and leptin levels were determined by colorimetric test with 5-Br-3'-phosphoadenosine-5'-phosphosulfate and enzyme-linked immunosorbent assay, respectively, at days 0 and 90 of the study.
Results: Zinc supplementation resulted in a significant increase in mean serum zinc level and BMI. Serum leptin decreased significantly after supplementation in children under hemodialysis. A significant negative correlation was observed between serum zinc and leptin levels as a result of zinc supplementation.
Conclusion: There was an increase in serum zinc level and BMI and decreased serum leptin after zinc supplementation in children under hemodialysis.
Keywords: serum zinc, serum leptin, hemodialysis, body weight
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