期刊
JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
卷 61, 期 -, 页码 -出版社
ELSEVIER GMBH
DOI: 10.1016/j.jtemb.2020.126558
关键词
Copper; Selenium; Thyroid function tests; Thyroid hormones; Trace elements
资金
- Seoul National University College of Medicine, Education Research Foundation
Background: Selenium and iodine are trace elements well known to have important roles in the synthesis and metabolism of thyroid hormones. However, the effects of other trace elements on thyroid hormones are still inconclusive. We investigated the association between several trace elements and thyroid hormones. Methods: The data of 448 subjects who were measured for both, trace elements and TSH/free T4, at the Heath Checkup Center were retrospectively reviewed. The presence of thyroiditis (from thyroid echogenicity) and thyroid nodules were reviewed in the subjects who underwent thyroid ultrasonography. Results: Blood concentrations of manganese, copper, selenium, and molybdenum were associated with TSH or free T4. After adjusting for age, sex, BMI, smoking, and alcohol consumption, blood copper levels were positively associated with free T4 in both sexes and selenium levels were positively associated with free T4 in women. There was no association between trace elements and thyroiditis. Blood copper concentration had a weak nonlinear association with the presence of thyroid nodules. Conclusions: This study demonstrated that blood concentrations of copper and selenium were significantly associated with free T4 in healthy Korean subjects with sufficient iodine intake suggesting their role in maintaining normal thyroid function.
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