A thyroid hormone similar to thyroxine but having greater potency.
- Human beings require iodine for the production of the thyroid hormones, thyroxine and triiodothyronine.
- The vertebrate thyroid gland produces two iodinated amino acids, thyroxine and triiodothyronine, which regulate diverse aspects of development, metabolic stimulation and metamorphosis.
- Thyroid-function test findings might be consistent with the euthyroid sick syndrome, with low triiodothyronine and thyroxine levels and a normal thyroid-stimulating hormone level.
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