thyroid hormone

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Thyroid hormone

Any of the chemical messengers produced by the thyroid gland, including thyrocalcitonin, a polypeptide, and thyroxine and triiodothyronine, which are iodinated thyronines. See Hormone, Thyrocalcitonin, Thyroid gland, Thyroxine

thyroid hormone

[′thī‚rȯid ′hȯr‚mōn]
Commonly, thyroxine or triiodothyronine, or both; a metabolically active compound formed and stored in the thyroid gland which functions to regulate the rate of metabolism.
References in periodicals archive ?
Prof Vaidya concludes, "These findings are important because we know that optimum thyroid hormone levels during pregnancy are essential for normal foetal brain development, and this study shows that this common pollutant may be adversely affecting brain development in children.
TSH is a hormone produced by the anterior pituitary gland that stimulates the thyroid gland to synthesize and secrete thyroid hormones T4 and T3.
Hyperthyroidism also may be caused by nodules, which are usually benign growths that produce too much thyroid hormone even when it is not needed, and thyroiditis, a temporary inflammation that can cause excess thyroid hormones to be released.
Tobacco smoke exposure, a form of personalized airborne PM exposure, has been shown to influence maternal and fetal thyroid function through changes in thyroid hormone levels (Mannisto et al.
Molecular basis of thyrotropin and thyroid hormone action during implantation and early development.
During pregnancy, there is an increased thyroid demand and increased iodine uptake and synthesis of thyroid hormones.
As the use of these medications promote imbalance in thyroid hormone levels, it is difficult to adjust probable confounders in clinical trials and practice.
It has further been reported that in larger fish, the effect of thyroid hormone was present only upto 42 g of weight and no effect in fish of an average weight of 230 g [11,16].
People who make too little thyroid hormone, which is called hypothyroidism, can feel fatigued and experience weight gain, among other symptoms.
The antioxidant selenium, found in Brazil nuts, seafood, and whole grains, helps protect the thyroid gland from damage during thyroid hormone production and helps convert thyroid hormones to the active form, Brownstein says.
Also, it has been found out that the thyroid hormone levels in different physiological periods are under the influence of the environmental temperature changes.
amurensis stem bark on thyroid hormone activity was evaluated using thyroid hormone responsive-luciferase assay.

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