Abstract
Thyroid hormones and the thyroxine-binding globulin are increased during hormonal treatment with oral contraceptives without changes in the thyroidal economy. Now we report that even reverse triiodothyronine, the main peripheral catabolite of thyroxine, is significantly increased during therapy with oral contraceptives.
MeSH terms
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Adult
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Contraceptives, Oral, Combined / pharmacology*
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Ethinyl Estradiol / pharmacology
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Female
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Humans
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Levonorgestrel
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Norgestrel / pharmacology
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Stimulation, Chemical
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Thyroid Hormones / blood
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Thyroxine-Binding Proteins / analysis
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Triiodothyronine, Reverse / blood*
Substances
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Contraceptives, Oral, Combined
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Thyroid Hormones
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Thyroxine-Binding Proteins
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Norgestrel
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Ethinyl Estradiol
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Triiodothyronine, Reverse
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Levonorgestrel