thyroid hormone


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thyroid hormone

n.
A hormone, especially thyroxine or triiodothyronine, produced by the thyroid gland.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

thyroid hormone

Either of two hormones, thyroxine (T4) or triiodothyronine (T3, secreted by the follicles of the thyroid gland. They act on receptors in tissues throughout the body to increase the production of cellular proteins, the metabolic rate, and the activities of the sympathetic nervous system. Deficiency of thyroid hormone produces clinical hypothyroidism; excess causes hyperthyroidism.
See also: hormone
Medical Dictionary, © 2009 Farlex and Partners

Patient discussion about thyroid hormone

Q. Has anyone tried natural hormones for hypo-thyroidism or fibromyalgia? I am on the low normal range for hypo-thyroidism (do not take meds for) and was diagnosed years ago with fibromyalgia. I take Ultram for the pain which also helps my fatigue factor but I still feel so sluggish sometimes and just want to sleep. I'm on an anti-depressant as it is. I've been hearing more about natural hormone therapy for these conditions and was wondering if anyone out there has tried this.

A. i have cfids and fibro as well as had my thyroid removed (parathyroid still in place). There really is no substitute for Synthroid that is as effective. There is with cfids and fibro. sensitivity to medications so the dosage normally given would not be the same usually lower dosages or 1/4 to 1/2 tabs. i have started on D-ribose, enada, COQ10, PB 8, Fish Oil with Omegas and primrose oil and B12 compounded shots in addition to other medications to treat medical issues that come along with the diseases. The first are homeopathic and are metabolized at a greater rate than synthetic meds which are often not processed correctly and may build up in your system. It is good to find a specialist [true specialist] or immunologist to help you with the medications and symptomologies that occur. Each person's system is different yet the way that it recognizes medications, food and such is similar and unique to the illnesses.

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References in periodicals archive ?
Wiersinga, "Dronerarone acts as a selective inhibitor of 3,5,3,-triiodothyronine binding to thyroid hormone receptor-[alpha]1: in vitro and in vivo evidence," Endocrinology, vol.
Treatment with thyroid hormone. Endocr Rev 2014;35(3):433-512.
Hyperthyroidism also may be caused by nodules, 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.
This confirms other studies which show that in AMI thyroid hormone level is rapidly down regulated.
In our study we have observed that thyroid hormone levels (T3, T4) are decreased in neonates having severe hyperbilirubinemia, but no significant correlation is noted.
Its function is to absorb iodine, an element that occurs mainly in salt, bread, and fish, and convert it into thyroid hormones: thyroxine (T4) and triiodothyronine (T3).
Blood samples taken from Akyazi State Hospital, Sakarya University Training and Research Hospital and Buyuk Ankara Laboratory Group in terms of T3, T4, TSH values have been reported in order to determine the thyroid hormone levels of the athletes.
From the 1[sup]st postoperative day, the patient showed fear of heat and sweating and used to wear thin clothes and disliked sleeping covered with quilt, and thyroid function test showed obviously raised thyroid hormones and thyroid globulin; however, thyroid stimulating hormone (TSH) and TSH receptor antibodies (TRAbs) were normal [Supplementary Table 1].
In the genetic analysis of the patient suspected of having thyroid hormone resistance, the P453A c.1357C > G mutation was detected to be heterozygous on the exon 10 of the THRB gene.
It's a relatively small gland, and it produces two types of thyroid hormone. Thyroid hormones affect just about every system and every cell in the body.

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