Iopanoic acid is an iodine-containing radiocontrast medium used in cholecystography. Both iopanoic acid and ipodate sodium are potent inhibitors of thyroid hormone release from thyroid gland, as well as of peripheral conversion of thyroxine to triiodothyronine. These compounds inhibit 5'deiodinase enzymes, which catalyse T4-T3 conversion in the thyroid cell, liver, kidney, skeletal muscle, heart, brain, pituitary. This accounts for the dramatic improvement in both subjective and objective symptoms of hyperthyroidism, particularly when they are used as an adjunctive therapy with thioamides. These are less toxic, as iodine is covalently bound in these compounds. They can be used in the treatment of patients with severe thyrotoxicosis and significant morbidity for rapid control of elevated plasma triiodothyronine concentrations. The use of iopanoic acid for treatment of thyrotoxicosis has been discontinued in the United States. In addition to inhibiting deiodinase enzymes, iopanoic acid is also a substrate of type 1 deiodinase. Iopanoic acid underwent monodeiodination in the presence of type 1 deiodinase in a microsomal mouse liver preparation.
U.S. National Library of Medicine
Radiopaque medium used as diagnostic aid.
The numerical value of iopanoic acid in Chaldean Numerology is: 6
The numerical value of iopanoic acid in Pythagorean Numerology is: 9
Images & Illustrations of iopanoic acid
Find a translation for the iopanoic acid definition in other languages:
Select another language:
Discuss these iopanoic acid definitions with the community:
Word of the Day
Would you like us to send you a FREE new word definition delivered to your inbox daily?
Use the citation below to add this definition to your bibliography:
"iopanoic acid." Definitions.net. STANDS4 LLC, 2017. Web. 27 Jun 2017. <http://www.definitions.net/definition/iopanoic acid>.