Jennifer Hawke-Petit and her two daughters were raped and murdered, while her husband, Dr. William Petit, was injured during a home invasion in Cheshire, Connecticut.
This signal is called thyroid stimulating hormone (TSH). As the name implies, this hormone stimulates the thyroid to produce thyroid hormone and to grow in size. This abnormal growth in size produces what is termed a âgoiter.â Thus, iodine deficiency is one cause of goiter development. Wherever iodine deficiency is common, goiter will be common.
Thyroid-stimulating hormone (TSH) is a glycoprotein secreted by pituitary cells through a feedback loop with T4/T3 levels (Figure 3). The control cascade starts with TRH â produced in the hypothalamus and released through the hypothalamic-pituitary circulation onto the pituitary.