Thyroxine, also referred to as T4, is one of the hormones synthesized and secreted by the thyroid gland; it acts to increase the rates of chemical reactions in almost all cells of the body, thus increasing the general level of body metabolism Thyroxine can be administered by mouth to treat underactivity of the thyroid gland
a hormone secreted by the thyroid gland which regulates metabolism triiodothyronine (T3) - a hormone secreted by the thyroid gland which regulates metabolism
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; "thyroxine is 65% iodine"
a substance produced by a tadpole's thyroid gland that causes it to metamorphosize See the thyroxine page
or l-tetraiodothyronine or T4 One of the two major hormones (along with the closely related l-triiodothyronine, or T3) secreted by the thyroid gland. Its principal function is to stimulate oxygen consumption and thus metabolism in all cells and tissues in the body. Thyroxine is formed by the addition of iodine to the amino acid tyrosine while the latter is in a protein-bound form. Thyroxine secretion is excessive in hyperthyroidism and deficient in hypothyroidism