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Vitamin E Supplementation and Circulating Adiponectin Concentrations: A Systematic Review and Meta-Analysis of Randomized Controlled Trials | ||
International Journal of Nutrition Sciences | ||
مقاله 1، دوره 2، شماره 3، آذر 2017، صفحه 118-125 اصل مقاله (2.04 M) | ||
نوع مقاله: Review Article | ||
نویسندگان | ||
Mohsen Mohammadi-Sartang1؛ Arash Dashtabi1؛ Zohreh Mazloom* 2 | ||
1Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran | ||
2Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran | ||
چکیده | ||
Current results from clinical trials about vitamin E effects on adiponectin are ambiguous. Therefore, we conducted a meta-analysis of available RCTs to resolve this inconsistency. The systematic search was performed in several databases including SCOPUS, PubMed-Medline, and Google Scholar until October 1st, 2017. We used fixedeffects model in combination with mean difference (MD) and 95% confidence intervals (CI) for the analysis of data. Meta-analysis of 6 RCTs (9 treatment arms) showed a significant increase in circulating adiponectin levels (MD: 0.36 ug/ml, 95% CI: 0.16 to 0.56; p <0.001), following vitamin E supplementation. In sub-group analysis, a significant increasing effect was observed only in trials with ≥400 mg/day dosage (MD: 0.78 ug/ml, 95% CI: 0.31, 1.24, p=0.001) and those trials lasting ≥6 months (MD: 0.58 ug/mL, 95% CI: 0.29, 0.86, p <0.001). In meta-regression, there was association between changes in adiponectin concentrations and duration of supplementation. Our findings showed the significant increase effect of vitamin E supplementation on circulating adiponectin levels, however a significant increasing effect was observed at doses above 400 mg/day and when supplementation lasting over 6 months. | ||
کلیدواژهها | ||
Vitamin E؛ Tocopherols؛ Adipokine؛ Adiponectin | ||
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