Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trial

PurposeSubclinical hypothyroidism is an early, mild form of hypothyroidism that may progress to overt hypothyroidism if untreated. The current study aimed to assess the effects of vitamin D supplementation on hormonal (thyroid stimulating hormone [TSH], triiodothyronine, thyroxine, and free thyroxin...

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Main Authors: Sara Safari, Maryam Rafraf, Mahsa Malekian, Roghayeh Molani-Gol, Mohammad Asghari-Jafarabadi, Majid Mobasseri
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-12-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2023.1306470/full
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author Sara Safari
Sara Safari
Maryam Rafraf
Mahsa Malekian
Roghayeh Molani-Gol
Roghayeh Molani-Gol
Mohammad Asghari-Jafarabadi
Mohammad Asghari-Jafarabadi
Majid Mobasseri
author_facet Sara Safari
Sara Safari
Maryam Rafraf
Mahsa Malekian
Roghayeh Molani-Gol
Roghayeh Molani-Gol
Mohammad Asghari-Jafarabadi
Mohammad Asghari-Jafarabadi
Majid Mobasseri
author_sort Sara Safari
collection DOAJ
description PurposeSubclinical hypothyroidism is an early, mild form of hypothyroidism that may progress to overt hypothyroidism if untreated. The current study aimed to assess the effects of vitamin D supplementation on hormonal (thyroid stimulating hormone [TSH], triiodothyronine, thyroxine, and free thyroxine) parameters, lipid profiles, serum irisin, and obesity indices in women with subclinical hypothyroidism.MethodsThe present randomized, double-blind, placebo-controlled clinical trial was carried out on 44 women with subclinical hypothyroidism. The participants were allocated to two groups (22 patients in each group) that received vitamin D (50,000 IU/week) or placebo for 12 weeks. Fasting blood samples, anthropometric and body composition measurements, physical activity levels, and dietary intakes were collected at baseline and at the end of the study.ResultsVitamin D supplementation significantly decreased TSH, total cholesterol, and fat mass percentage, and significantly increased serum vitamin D and irisin levels and fat-free mass percentage compared to the control group (all, p<0.05). Changes in thyroid hormones, other lipid profiles, and anthropometric indices were not significantly different between the groups.ConclusionOur study indicates that vitamin D administration improves serum TSH, total cholesterol, irisin, and body composition in women with subclinical hypothyroidism. More well-designed clinical trials are required to confirm these findings and clarify the effects of vitamin D supplementation on both genders of patients.Clinical trial registrationhttps://www.irct.ir/trial/57482, Identifier IRCT20100408003664N25.
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spelling doaj.art-60e358207065404981943bd5498425d32023-12-21T04:50:10ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922023-12-011410.3389/fendo.2023.13064701306470Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trialSara Safari0Sara Safari1Maryam Rafraf2Mahsa Malekian3Roghayeh Molani-Gol4Roghayeh Molani-Gol5Mohammad Asghari-Jafarabadi6Mohammad Asghari-Jafarabadi7Majid Mobasseri8Student Research Committee, Tabriz University of Medical Sciences, Tabriz, IranNutrition Research Center, Department of Community Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, IranNutrition Research Center, Department of Community Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, IranEndocrine Research Center, Tabriz University of Medical Sciences, Tabriz, IranStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, IranNutrition Research Center, Department of Community Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, IranCabrini Research, Cabrini Health, Malvern, VIC, AustraliaSchool of Public Health and Preventative Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, AustraliaEndocrine Research Center, Tabriz University of Medical Sciences, Tabriz, IranPurposeSubclinical hypothyroidism is an early, mild form of hypothyroidism that may progress to overt hypothyroidism if untreated. The current study aimed to assess the effects of vitamin D supplementation on hormonal (thyroid stimulating hormone [TSH], triiodothyronine, thyroxine, and free thyroxine) parameters, lipid profiles, serum irisin, and obesity indices in women with subclinical hypothyroidism.MethodsThe present randomized, double-blind, placebo-controlled clinical trial was carried out on 44 women with subclinical hypothyroidism. The participants were allocated to two groups (22 patients in each group) that received vitamin D (50,000 IU/week) or placebo for 12 weeks. Fasting blood samples, anthropometric and body composition measurements, physical activity levels, and dietary intakes were collected at baseline and at the end of the study.ResultsVitamin D supplementation significantly decreased TSH, total cholesterol, and fat mass percentage, and significantly increased serum vitamin D and irisin levels and fat-free mass percentage compared to the control group (all, p<0.05). Changes in thyroid hormones, other lipid profiles, and anthropometric indices were not significantly different between the groups.ConclusionOur study indicates that vitamin D administration improves serum TSH, total cholesterol, irisin, and body composition in women with subclinical hypothyroidism. More well-designed clinical trials are required to confirm these findings and clarify the effects of vitamin D supplementation on both genders of patients.Clinical trial registrationhttps://www.irct.ir/trial/57482, Identifier IRCT20100408003664N25.https://www.frontiersin.org/articles/10.3389/fendo.2023.1306470/fullVitamin Dsubclinical hypothyroidismTSHmetabolic parametersirisinobesity
spellingShingle Sara Safari
Sara Safari
Maryam Rafraf
Mahsa Malekian
Roghayeh Molani-Gol
Roghayeh Molani-Gol
Mohammad Asghari-Jafarabadi
Mohammad Asghari-Jafarabadi
Majid Mobasseri
Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trial
Frontiers in Endocrinology
Vitamin D
subclinical hypothyroidism
TSH
metabolic parameters
irisin
obesity
title Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trial
title_full Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trial
title_fullStr Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trial
title_full_unstemmed Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trial
title_short Effects of vitamin D supplementation on metabolic parameters, serum irisin and obesity values in women with subclinical hypothyroidism: a double-blind randomized controlled trial
title_sort effects of vitamin d supplementation on metabolic parameters serum irisin and obesity values in women with subclinical hypothyroidism a double blind randomized controlled trial
topic Vitamin D
subclinical hypothyroidism
TSH
metabolic parameters
irisin
obesity
url https://www.frontiersin.org/articles/10.3389/fendo.2023.1306470/full
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