Abstract
Objective
Metabolic syndrome (MetS) is characterized by the cluster of risk factors associated with diabetes and cardiovascular diseases. Given the influential role of oxidative stress (OxS) in the pathogenesis of MetS and the antioxidant properties of melatonin, our study aims to investigate the impact of melatonin supplementation on OxS biomarkers and serum endothelin-1 (ET-1) levels in patients diagnosed with MetS.
Methods
This double-blind, placebo-controlled, randomized clinical trial involved male and female adult participants with MetS. Subjects in the melatonin and control groups were administered 6 mg/day of encapsulated powdered melatonin or placebo (wheat flour), respectively, over a 12-week period. We evaluated serum levels of malondialdehyde (MDA), superoxide dismutase (SOD) activity, and ET-1 in MetS patients, both pre- and post-intervention.
Results
Melatonin supplementation significantly decreased serum ET-1 level (1.55 ± 0.24 pg/ml vs. 0.808 ± 0.18 pg/ml; p = 0.04) and MDA (1.326 ± 0.05 μM vs. 1.134 ± 0.05 μM; p = 0.021) in the melatonin group relative to baseline values. Additionally, SOD activity displayed a significant increase (23.64 ± 2.77 U/ml vs. 41.35 ± 1.22 U/ml; p = 0.0001) in the melatonin group when compared to baseline.
Conclusion
Our research indicates that 12 weeks of melatonin supplementation in MetS patients leads to a significant reduction in serum ET-1 and MDA levels, alongside an increase in SOD activity levels relative to baseline. However, further comprehensive and well-structured randomized controlled trials are essential for establishing the effects of melatonin supplementation on OxS biomarkers in diverse age demographics.
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Data availability
Upon request we can provide the data.
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Funding
This study was financially supported by a grant No: HLRC-9612 from Ahvaz jundishapur University of Medical Sciences.
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Concept and Design: FS, RN-M.
Data Acquisition:SJ, ZN.
Data Analysis: SA.
Drafting the Manuscript: HG-Z, MHR, FS, RN-M.
Critical Revising of the Manuscript: HB-R, HG-Z.
Final Approval of the Manuscript: HB-R.
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Subjects aged 18 and above who met the criteria of the National Diabetes Association for the diagnosis of metabolic syndrome were eligible to participate. Informed written consent was obtained from all study subjects.
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Ghaderi-Zefrehi, H., Seif, F., Niayesh‐Mehr, R. et al. Impact of the supplementation of melatonin on oxidative stress marker and serum endothelin-1 in patients with metabolic syndrome. Int J Diabetes Dev Ctries (2023). https://doi.org/10.1007/s13410-023-01266-5
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DOI: https://doi.org/10.1007/s13410-023-01266-5