A thioureylene antithyroid agent that inhibits the formation of thyroid hormones by interfering with the incorporation of iodine into tyrosyl residues of thyroglobulin. This is done by interfering with the oxidation of iodide ion and iodotyrosyl groups through inhibition of the peroxidase enzyme.

A heat stable DNA-DIRECTED DNA POLYMERASE from the bacteria Thermus aquaticus. It is widely used for the amplification of genes through the process of POLYMERASE CHAIN REACTION. EC 2.7.7.-.

Any of several species of the tropical plant, family Euphorbiaceae, that grow starchy roots used for food. Manihot esculenta is most often used, but contains high amounts of hydrogen cyanide and few essential nutrients.

A subclass of segmented worms comprising the tapeworms.

Venoms of arthropods of the order Araneida of the Arachnida. The venoms usually contain several protein fractions, including enzymes, hemolytic, neurolytic, and other toxins.

A thioxanthine with effects similar to the phenothiazine antipsychotics.

A cold infusion of tar in water, formerly regarded as a cure-all. (Webster, 3d ed)

A heat stable DNA-DIRECTED DNA POLYMERASE from the bacteria Thermus aquaticus. It is widely used for the amplification of genes through the process of POLYMERASE CHAIN REACTION. EC 2.7.7.-.

Semisynthetic conjugates of various toxic molecules, including radioactive isotopes and bacterial or plant toxins, with specific immune substances such as immunoglobulins, monoclonal antibodies, and antigens. The antitumor or antiviral immune substance carries the toxin to the tumor or infected cell where the toxin exerts its poisonous effect.

The use of ionizing radiation to treat malignant neoplasms and other benign conditions. The most common forms of ionizing radiation used as therapy are x-rays, gamma rays, and electrons. A special form of radiotherapy, targeted radiotherapy, links a cytotoxic radionuclide to a molecule that targets the tumor. When this molecule is an antibody or other immunologic molecule, the technique is called RADIOIMMUNOTHERAPY.