Effect of vitamin D3 loading and thyroid hormone replacement therapy on the decreased serum 25-hydroxyvitamin D level in patients with hypothyroidism

J. Barsony, P. Lakatos, J. Foldes, T. Feher

Research output: Contribution to journalArticle

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Abstract

Twelve hypothyroid subjects, 13 healthy and 12 healthy women with a slight deficiency of vitamin D were studied to distinguish seasonal changes from the thyroxine-dependent ones. Serum 25-hydroxyvitamin D levels of hypothyroid patients were lower than those of healthy individuals when the sera were obtained in the autumn. In hypothyroid patients a single oral dose of 100,000 IU vitamin D3 resulted in a smaller increase in 25-hydroxyvitamin D concentration than in controls having subclinical exogenous vitamin D deficiency. Substitution therapy with thyroid hormone, started in our study always in autumn, increased the 25-hydroxyvitamin D concentration in hypothyroid patients, which was opposite to the autumn-to-spring variation of this hormone observed in healthy controls. The increase of 25-hydroxyvitamin D, dehydroepiandrosterone and its sulphate values following substitution therapy in the hypothyroid patients may indicate that thyroid hormone(s) is (are) involved in the regulation of steroid hormone synthesis.

Original languageEnglish
Pages (from-to)329-334
Number of pages6
JournalActa Endocrinologica
Volume113
Issue number3
Publication statusPublished - 1986

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Cholecalciferol
Hormone Replacement Therapy
Hypothyroidism
Thyroid Hormones
Vitamin D Deficiency
Serum
Hormones
Dehydroepiandrosterone Sulfate
Thyroxine
Healthy Volunteers
Steroids
25-hydroxyvitamin D
Therapeutics

ASJC Scopus subject areas

  • Endocrinology

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Effect of vitamin D3 loading and thyroid hormone replacement therapy on the decreased serum 25-hydroxyvitamin D level in patients with hypothyroidism. / Barsony, J.; Lakatos, P.; Foldes, J.; Feher, T.

In: Acta Endocrinologica, Vol. 113, No. 3, 1986, p. 329-334.

Research output: Contribution to journalArticle

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