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Effects of Melatonin Supplementation on Oxidative Stress, and Inflammatory Biomarkers in Diabetic Patients With Chronic Kidney Disease: A Double-Blind, Randomized Controlled Trial Publisher



Sadeghi S1 ; Nassiri A2 ; Hakemi MS3 ; Hosseini F1 ; Pourrezagholie F4 ; Naeini F1 ; Niri AN5 ; Imani H1 ; Mohammadi H1
Authors
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Authors Affiliations
  1. 1. Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Nephrology, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  3. 3. Department of Nephrology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Nephrology, Labbafinezhad Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  5. 5. Cell and Molecular Biology Department, University of Tehran, Tehran, Iran

Source: BMC Nutrition Published:2025


Abstract

Background and objectives: Chronic kidney disease (CKD) is a progressive illness linked to higher rates of morbidity and death. One of the main causes of CKD is diabetes mellitus (DM), and oxidative stress is essential to the disease's development. It has been demonstrated that the natural antioxidant melatonin reduces inflammation and oxidative damage in renal tissues. Given the lack of robust evidence, this double-blind clinical trial sought to investigate the effects of melatonin supplementation on oxidative stress and inflammatory markers in diabetic CKD patients. Materials and methods: This trial included 41 diabetic patients with CKD (stages 3–4) from Shariati Hospital, Tehran, Iran. For ten weeks, participants were randomized to receive either a placebo or 5 mg of melatonin twice a day. Baseline characteristics, dietary intake, physical activity, and anthropometric measurements were recorded. Oxidative stress (TAC, TOS, MDA) and inflammatory markers (IL-6, hs-CRP) were measured before and after the intervention. Statistical analysis was performed using SPSS, with significance set at p < 0.05. Results: The 10-week trial was completed by 41 participants in total, and no adverse effects were noted. Dietary intake, physical activity, and anthropometric parameters did not significantly differ between the melatonin and control groups in baseline characteristics. Melatonin supplementation decreased oxidative stress and inflammatory biomarkers, including hs-CRP, MDA, TOS, and IL-6. However, these changes were not statistically significant. Conclusion: Our study showed that melatonin supplementation did not significantly affect oxidative stress or inflammatory markers, including TAC, TOS, MDA, IL-6, and hs-CRP, in diabetic patients with CKD. Despite a decrement in TOS, MDA, IL-6, and hs-CRP levels after 10 weeks, this was not statistically significant. Further studies with larger sample sizes, greater dosages, and longer follow-up periods are recommended. © The Author(s) 2025.
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