thyroid hormone

thyroid hormone
an iodine-containing substance, synthesized and secreted by the thyroid gland, that is essential for normal metabolic processes and mental and physical development. There are two thyroid hormones, triiodothyronine and thyroxine, which are formed from thyroglobulin. Lack of these hormones gives rise to cretinism in infants and myxoedema in adults. Excessive production of thyroid hormones gives rise to thyrotoxicosis.

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  • thyroid hormone — n any of several closely related metabolically active compounds (as triiodothyronine) that are stored in the thyroid gland in the form of thyroglobulin or circulate in the blood usu. bound to plasma proteins esp THYROXINE * * * an iodine… …   Medical dictionary

  • Thyroid hormone — The thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are tyrosine based hormones produced by the thyroid gland. An important component in the synthesis is iodine. The major form of thyroid hormone in the blood is thyroxine (T4). The… …   Wikipedia

  • thyroid hormone — A hormone that affects heart rate, blood pressure, body temperature, and weight. Thyroid hormone is made by the thyroid gland and can also be made in the laboratory …   English dictionary of cancer terms

  • Thyroid hormone receptor beta — Thyroid hormone receptor, beta (erythroblastic leukemia viral (v erb a) oncogene homolog 2, avian) PDB rendering based on 1bsx …   Wikipedia

  • Thyroid hormone receptor alpha — Thyroid hormone receptor, alpha PDB rendering based on 1nav …   Wikipedia

  • Thyroid hormone resistance — MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D018382 Thyroid hormone resistance describes a rare syndrome where the thyroid hormone levels are elevated but the thyroid stimulating hormone (TSH) level is not suppressed, or not… …   Wikipedia

  • Thyroid hormone receptor — protein Name=thyroid hormone receptor, alpha (erythroblastic leukemia viral (v erb a) oncogene homolog, avian) caption= width= HGNCid=11796 Symbol=THRA AltSymbols=THRA1, THRA2, ERBA1 EntrezGene=7067 OMIM=190120 RefSeq=NM 199334 UniProt=P10827 PDB …   Wikipedia

  • Thyroid hormone organification defect IIb — This condition, clinically called Pendred syndrome, is the hereditary association of congenital deafness (deafness at the time of birth) and goiter (enlargement of the thyroid gland in the front of the neck) due to a defect in the making of… …   Medical dictionary

  • Thyroid-hormone transaminase — In enzymology, a thyroid hormone transaminase (EC number| is an enzyme that catalyzes the chemical reaction:L 3,5,3 triiodothyronine + 2 oxoglutarate ightleftharpoons 3 [4 (4 hydroxy 3 iodophenoxy) 3,5 diiodophenyl] 2 oxopropanoate + L… …   Wikipedia

  • thyroid hormone treatment — Treatment with thyroid hormone, which is a hormone that affects heart rate, blood pressure, body temperature, and weight …   English dictionary of cancer terms

  • thyroid hormone — noun any of several closely related compounds that are produced by the thyroid gland and are active metabolically (Freq. 4) • Hypernyms: ↑hormone, ↑endocrine, ↑internal secretion • Hyponyms: ↑calcitonin, ↑thyrocalcitonin, ↑ …   Useful english dictionary

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