McGinty and Sharp (1) demonstrated that the thyroid glands of rats treated with propylthiouracil retained the ability to concentrate iodide ion but failed to bind the iodine in an organic form. VanderLaan and VanderLaan (2) and Stanley and Astwood (3) showed also that thyroidal iodide, "trapped" under the influence of the antithyroid drugs, could be rapidly discharged from the gland by the admi...

A novel amphiphilic photosensitizing agent based on a tricationic fullerene C60 (DMC603+) was efficiently synthesized from its non-charged analogue MMC60. These fullerenes presented strong UV absorptions, with broad range of less intense absorption up to 710 nm. Both compounds showed low fluorescence emission and were able photosensitize the production reactive oxygen species. Furthermore, phot...

This paper discusses the experimental findings on lay-ing quails when their diets were supplemented with iodine and starch mixture. Five groups of 120 comparable bred in Omsk Region formed; sex ratio was 1:4. The first group control; birds fed main diet without supplement; 2nd, 3rd, 4th 5th trial where (potassium iodide) + (1:4) immediately before feeding. dosages tested product as following (i...

Previous studies have suggested that phytoplankton play an important role in the biogeochemical cycling of iodine, due to the appearance of iodide in the euphotic zone. Changes in the speciation of iodine over the course of the growth cycle were examined in culture media for a variety of phytoplankton taxa (diatoms, dinoflagellates and prymnesiophytes). All species tested showed the apparent ab...

It is common knowledge that .iodine is taken up by the thyroid very rapidly when administered in any form and by any method. It is also known that the amounts taken up from a given intake vary with the size of the gland and the existing degree of hyperplasia. These are statements of fact to the best of our knowledge, but they are also vague generalizations and on that account neither satisfying...

Iodine is an important element in studies of environmental protection and human health, global-scale hydrologic processes and nuclear nonproliferation. Biogeochemical cycling of iodine is complex, because iodine occurs in multiple oxidation states and as inorganic and organic species that may be hydrophilic, atmophilic, and biophilic. In this study, we applied new analytical techniques to study...

Context The effects of maternal inorganic iodine therapy on infant thyroid function are not well known. Objective This study investigated the effects on infant thyroid function of maternal inorganic iodine therapy when administered to lactating mothers with Graves disease. Design and Setting This study was a prospective case series performed at the Tajiri Thyroid Clinic, Kumamoto, Japan. ...

Iodine has many important biological functions and its concentrations vary with the environment. Recent research has provided novel insights into iodine uptake mechanisms in marine bacteria and kelp through hydrogen peroxide-dependent diffusion (PDD). This mechanism is distinct from sodium-dependent mechanisms known from vertebrates. In vertebrates, iodine accumulates in the thyroid gland by th...

Several marine phytoplankton species, primarily diatoms, were examined for the accumulation of iodide (10 species) and iodate (9 species) using radioactive iodine-125 in f/2 artificial seawater, a nitrate-enriched medium. Iodide accumulation (net uptake) rates were variable, and diatoms exhibited the highest rates. Emiliania huxleyi and Synechococcus sp. did not accumulate iodide. Accumulation ...