Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «T»:
Trypanosoma cruzi: The parasitic microorganism
that causes Chagas disease. See: Chagas disease....
Trypanosomiasis, African: See: African sleeping sickness....
Trypanosomiasis, American: See: Chagas disease....
Tryptophan: An amino acid, one of the 20 building blocks of protein. A dietary essential amino acid, tryptophan is necessary for optimal growth of children. Bacteria in the intestine break tryptophan down to compounds that largely are responsible for the unpleasant odor of feces. Symbol: Trp....
TSC1: The tuberous sclerosis 1 gene. The product of the TSC1 gene is a protein called hamartin. This protein interacts with tuberin, the product of the TSC2 gene. These two proteins form a complex and play a role in cell growth and division. TSC1 functions as a tumor suppressor gene.
Mutation in the...
TSC2: The tuberous sclerosis 2 gene. The product of the TSC2 gene is a protein called tuberin. This protein interacts with hamartin, the product of the TSC1 gene. These two proteins form a complex and play a role in cell growth and division. The complex of these two proteins also controls how materi...
TSD: Abbreviation for Tay-Sachs disease, a genetic metabolic disorder. See: Tay-Sachs disease....
TSE: Abbreviation for Transmissible spongiform encephalopathy....
TSH: Stands for thyroid stimulating hormone, a hormone produced by the pituitary gland at the base of the brain in response to signals from the hypothalamus gland in the brain. TSH promotes the growth of the thyroid gland in the neck and stimulates it to produce more thyroid hormones. When there is ...
TSH receptor: The receptor for thyroid stimulating hormone (TSH), which is also called thyrotropin. Encoded by a gene on chromosome 14q, TSHR is largest of all known glycoprotein hormone receptors. It is one of the primary antigens in autoimmune thyroid disease. Autoantibodies to TSHR act as TSH ago...
TSI: Stands for Thyroid Stimulating Immunoglobulin. The
TSI level is abnormally high in persons with hyperthyroidism (too much thyroid hormone)
due to Graves' disease. Thyroid hormones are essential for the function of every cell
in the body. They help regulate growth and the rate of chemical reacti...
Tsutsugamushi disease: A mite-borne infectious disease
caused by a microorganism, Rickettsia tsutsugamushi,
characteristically with fever, headache, a raised (macular) rash,
swollen glands (lymphadenopathy) and a dark crusted ulcer (called an
eschar or tache noire) at the site of the chigger (mi...
TTP (thrombotic thrombocytopenic purpura)
TTP (thrombotic thrombocytopenic purpura): A life-threatening disease involving embolism and thrombosis (plugging) of the small blood vessels in the brain. TTP is characterized by platelet microthrombi (tiny traveling clots composed of platelets, the clotting cells in the blood), thrombocytopenia (l...
TTR: The gene that encodes transthyretin, a plasma protein consisting of 127 amino acids that binds retinol and thyroxine. Many distinct forms of amyloidosis have been related to different point mutations in TTR....
Tubal occlusion procedure, selective (STOP)
Tubal occlusion procedure, selective (STOP): A nonsurgical form of permanent birth control in which a physician inserts a 4-centimeter (1.6 inch) long metal coil into each one of a woman's two fallopian tubes via a scope passed through the cervix into the uterus and thence into the openings of the f...