期刊
CLINICAL NUTRITION
卷 40, 期 7, 页码 4595-4605出版社
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.clnu.2021.06.007
关键词
Melatonin; Diabetes; Glycated hemoglobin; Fasting blood glucose; Insulin resistance
资金
- National Council for Scientific and Technological Development (CNPq)
This study reviewed randomized clinical trials on the effects of melatonin supplementation in diabetes and found that melatonin can help reduce diabetes parameters such as fasting blood glucose, glycated hemoglobin, and insulin resistance compared to placebo.
Background & aims: Melatonin appears as a supplement capable of helping with diabetes. However, there is no evidence from meta-analyses that showed significant results in insulin resistance and glycated hemoglobin. This study aimed to review the literature on randomized clinical trials that evaluated melatonin supplementation effects, compared to placebo, on diabetes parameters in humans. Methods: We conducted a systematic review and meta-analysis in the following databases: Pubmed, LILACS, Scielo, Scopus, Web of Science, Cochrane, and Embase. We included randomized clinical trials investigating melatonin supplementation's effects, compared to placebo, on fasting blood glucose, insulin resistance, and glycated hemoglobin. Non-randomized clinical trials, observation studies, and animal models were excluded. The Cochrane scale assessed the quality of the studies. We conducted a meta-analysis on fasting blood glucose, insulin resistance, and glycated hemoglobin. Results: Sixteen studies were included, of which 56% showed benefits from supplementation with melatonin in diabetes parameters compared with placebo. Our meta-analysis showed significant results for fasting blood glucose [mean difference: -4.65; 95% CI: -8.06, -1.23; p = < 0.01; I-2 = 58%], glycated hemoglobin [mean difference: -0.38; 95% CI: -0.67, -0.10; p = 0.30; I-2 = 18%], and insulin resistance [mean difference: -0.58; 95% CI: -1.00, -0.15; p = 0.17; I-2 = 35%]. Conclusions: Our results showed that melatonin supplementation was useful for reducing diabetes parameters when compared to placebo. (C) 2021 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
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