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Ions such as thiocyanate [7] (from cigarette smoking for example [8]) and perchlorate decrease iodide uptake by competitive inhibition and, as a consequence of reduced thyroxine and triiodothyronine secretion by the gland, cause, at low doses, an increased release of thyrotropin (by reduced negative feedback), which then stimulates the gland.
Thyrotoxicosis factitia (alimentary thyrotoxicosis, exogenous thyrotoxicosis) [1] [2] is a condition of thyrotoxicosis caused by the ingestion [3] of exogenous thyroid hormone. [4] [5] It can be the result of mistaken ingestion of excess drugs, such as levothyroxine [6] and triiodothyronine, [7] or as a symptom of Munchausen syndrome.
The disease has become significantly more common since the first reports of feline hyperthyroidism in the 1970s. The most common cause of hyperthyroidism in cats is the presence of benign tumors called adenomas. 98% of cases are caused by the presence of an adenoma, [64] but the reason these cats develop such tumors continues to be studied.
Graves’ disease is the most common cause of hyperthyroidism, says Dr. Amy S. Chang, MD, a clinical associate professor of medicine and head of the division of Diabetes & Endocrinology at Scripps ...
Thyroid disease is a medical condition that affects the structure and/or function of the thyroid gland.The thyroid gland is located at the front of the neck and produces thyroid hormones [1] that travel through the blood to help regulate many other organs, meaning that it is an endocrine organ.
Toxic multinodular goiter (TMNG), also known as multinodular toxic goiter (MNTG), is an active multinodular goiter associated with hyperthyroidism.. It is a common cause of hyperthyroidism [2] [3] in which there is excess production of thyroid hormones from functionally autonomous thyroid nodules, which do not require stimulation from thyroid stimulating hormone (TSH).
New tests done by the Environmental Working Group have found 21 oat-based cereals and snack bars popular amongst children to have "troubling levels of glyphosate." The chemical, which is the ...
Hyperthyroidism has unique effects in children on growth and pubertal development, e.g. causing epiphyseal maturation. In growing children, accelerated bone growth from hyperthyroidism can increase osteogenesis in the short term, but generally results in short-stature adults compared with the predicted heights. Pubertal development tends to be ...