thyroid hormone


Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.

thyroid hormone

n.
A hormone, especially thyroxine or triiodothyronine, produced by the thyroid gland.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.thyroid hormone - any of several closely related compounds that are produced by the thyroid gland and are active metabolically
endocrine, hormone, internal secretion - the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
calcitonin, thyrocalcitonin - thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone
tetraiodothyronine, thyroxin, thyroxine, T - hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; "thyroxine is 65% iodine"
liothyronine, triiodothyronine, T - thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer
References in periodicals archive ?
It all boils down to the regulation of thyroid hormones in the body.
If you're diagnosed with underactive thyroid, you'll likely be prescribed the synthetic thyroid hormone levothyroxine (Levothroid[R], Synthroid[R]) which is taken daily to restore the body's hormone balance.
USA], Nov 7 ( ANI ): Expecting mothers, who are exposed to elevated levels of a common environmental pollutant, perchlorate, had lower levels of a thyroid hormone crucial for normal foetal brain development.
Usually, thyrotoxicosis can be caused by the following conditions:[sup][6] (1) the thyroid is excessively stimulated by trophic factors; (2) constitutive activation of thyroid hormone synthesis and secretion occurs, leading to autonomous release of excess thyroid hormones; (3) thyroid stores of preformed hormone are passively released in excessive amounts due to autoimmune, infectious, chemical, or mechanical insult; or (4) there is exposure to extrathyroidal sources of thyroid hormone.
This can be a potentially life-threatening medical condition, and immediate treatment with antithyroid medication is necessary to lower thyroid hormone levels.
The inflammation eventually causes damage and scarring, which often leads to underproduction of thyroid hormone, or hypothyroidism," says Dr.
2009) may affect thyroid hormone regulation and function in neonates and adults; however, epidemiological studies on the impact of exposure to particulate matter (PM) air pollution on thyroid hormones are lacking.
Examples are: insulin from the pancreas, cortisol and adrenaline from the adrenal glands, oestrogen and progesterone from the ovaries, pituitary hormones from the pituitary glands, thyroid hormones from the thyroid gland and testosterone from the testicles.
Regarding thyroid autoimmunity, transcripts for TPO (and thyroglobulin, Tg) are required for thyroid hormone synthesis in the thyroid gland but it is also expressed in the endometrium; the latter is thus susceptible to the action of anti-TPO and anti-Tg autoantibodies (10).
In addition to many factors, thyroid hormones have great importance in this aspect.
After taking the written consent from the subjects, blood sample was collected, and the thyroid hormone assay was done.

Full browser ?