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Therapeutic effect of vitamin D in Hashimoto's thyroiditis: a prospective, randomized and controlled clinical trial in China.

ABSTRACT: The study aims to explore the clinical effects of Vitamin D (VitD) supplements for Hashimoto's Thyroiditis (HT), which are unclear according to other studies. Female patients with newly diagnosed HT from January to June in 2018 were included. This study is registered in the Chinese Clinical Trials Registry with registration number ChiCTR1800014619 (URL: https://www.chictr.org.cn/). Patients were randomly assigned to the treatment group and the control group. The treated group were further randomly assigned to a VitD supplement group or VitD & Levothyroxine (L-T4) supplement group. After 6 months, we recorded and compared various indicators between different groups. A total of 179 patients, aged 12 to 75, were used for statistical analysis. A significant decrease in Thyroid Peroxidase Antibody (TPOAb) level was observed (351.70±183.25 vs. 246.37±157.39, P<0.001) in the VitD-treated group compared to the control group after 6 months. Free Triiodothyronine (FT3) and Free Thyroxine (FT4) level were increased (FT3: 4.30±0.64 vs. 4.84±0.9, P<0.001; FT4: 15.15±1.93 vs. 17.38±2.97, P<0.001), and Thyroid-Stimulating Hormone (THS) level was decreased (3.58±1.78 vs. 2.25±1.22, P<0.001) in the VitD-treated group compared to the control group. VitD supplementation can effectively slow progression of hypothyroidism, improve thyroid function, and reduce the anti-thyroid antibody level. This suggests it is useful for HT.

SUBMITTER: Jiang X

PROVIDER: S-EPMC10641335 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Therapeutic effect of vitamin D in Hashimoto's thyroiditis: a prospective, randomized and controlled clinical trial in China.

Jiang Xue X Huang Yin Y Li Yanan Y Xia Yuxiao Y Liu Lina L Lin Feng F Shi Yuhong Y

American journal of translational research 20231015 10

<h4>Background</h4>The study aims to explore the clinical effects of Vitamin D (VitD) supplements for Hashimoto's Thyroiditis (HT), which are unclear according to other studies.<h4>Methods</h4>Female patients with newly diagnosed HT from January to June in 2018 were included. This study is registered in the Chinese Clinical Trials Registry with registration number ChiCTR1800014619 (URL: https://www.chictr.org.cn/). Patients were randomly assigned to the treatment group and the control group. The ...[more]

PMID: 37969187

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Project description:Background: Protective effects of vitamin D have been reported in autoimmune and malignant thyroid diseases, though little is known about the underlying mechanism. Sirtuin 1 histon deacethylase (SIRT1) links the vitamin D pathway with regulation of transcription factor FOXO3a, a key player in cell cycle regulation and apoptosis. Aim of the present study was to investigate common single nucleotide polymorphisms (SNP's) in FOXO3a gene in respect to thyroid diseases, as well as to evaluate the hypothesis of Sirtuin1-FOXO3a interaction being a mediator of anti-proliferative vitamin D effects. Methods: The SNP's FOXO3a rs4946936/rs4945816/rs9400239 were genotyped in 257 patients with differentiated thyroid carcinoma (DTC), 139 patients with Hashimoto thyroiditis (HT) and 463 healthy controls (HC). Moreover, T-helper cells of HC and papillary thyroid cancer cell line BCPAP were incubated with 1,25(OH)2D3 and/or SIRT1 inhibitor Ex-527 in order to elucidate SIRT1- dependent vitamin D effects on cell proliferation and FOXO3a gene expression in vitro. Results: Patients with DTC tended to carry more often allele C in FOXO3a rs4946936 in comparison to HC (pcorrected = pc = 0.08). FOXO3a rs9400239T and rs4945816C was more frequent in HT in comparison to HC (pc = 0.02 and pc = 0.01, respectively). In both DTC and HT, we could not find a correlation of FOXO3a SNP's with vitamin D status. However, on in vitro level, 1,25(OH)2D3 showed an anti-proliferative effect in both T-helper cells and BCPAP, that was blocked by SIRT1 inhibition (T-helper cells: p = 0.0059, BCPAP: p = 0.04) and accompanied by elevated FOXO3a gene expression in T-helper cells (p = 0.05). Conclusions: FOXO3a rs9400239T and rs4945816C may constitute risk factors for HT, independent of the vitamin D status.This indicates the implication of FOXO3a in pathogenesis of autoimmune thyroid diseases. The dependency of anti-proliferative vitamin D effects on SIRT1 activity further suggests a key role of vitamin D-SIRT1-FOXO3a axis for protective vitamin D effects.

Dataset Information

Therapeutic effect of vitamin D in Hashimoto's thyroiditis: a prospective, randomized and controlled clinical trial in China.

Publications

Therapeutic effect of vitamin D in Hashimoto's thyroiditis: a prospective, randomized and controlled clinical trial in China.

Similar Datasets

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