Results are presented from an ongoing project to study the status and behavior of I and I in the environment. I and I abundances were investigated in precipitation, surface and ground waters from Lower Saxony, Germany, and in soil samples from various European locations. From the analysis of I in rain, I annual deposition densities were determined for the time period from 19971999. We conclude ...

PURPOSE To develop a new biological equivalent dose (BED) formulism that includes repair, repopulation and resensitization (redistribution and reoxygenation), and can be used to calculate prescribed dose for permanent implant with Cs-131. METHODS Because of lack of sufficient clinical data, the prescribed dose with new isotopes is usually calculated based on BED compared with other isotopes t...

Disorders of the thyroid gland are among the most common conditions diagnosed and managed by pediatric endocrinologists. Thyroid hormone synthesis depends on normal iodide transport and knowledge of its regulation is fundamental to understand the etiology and management of congenital and acquired thyroid conditions such as hypothyroidism and hyperthyroidism. The ability of the thyroid to concen...

Cesium radioactive isotopes (134Cs and 137Cs) are dangerous to human health due to their long half-life and high solubility in water. Nuclear experiments, wars, and nuclear plant accidents have been the main sources of Cs release into the environment. In recent years, several methods have been introduced for the elimination of Cs radioactive isotopes from contaminated wate...

introduction: iodine deficiency disorders (idd) are the most common epidemiological problems in the world, including our country. in order to prevent idd and its consequences, iodized table salt is being used in our country since 1989. at present, this program is 18 years old. the surveillance of idd may be implemented to assess the prevalence of idd, identify high risk areas for intervention a...

It was in May, 1938 that Hertz et al. (1) published the first report on biological studies with a radioactive isotope of iodine. By today's standards these first studies were done under the least favorable conditions with an isotope whose half life of 25 minutes limited the studies that could be done. Notwithstanding the limitations put on these investigators they not only reaffirmed certain pr...

129 I is one of the main radioisotopes iodine derived from nuclear fuel cycle that can be found sustainably in environment due to its long half-life. In coastal marine environment, brown macroalgae, such laminariales (or kelps), are known naturally feature highest rates accumulation, and an important source biogenic volatile iodinated compounds released atmosphere. These seaweeds therefore like...

Background: Possibility to trace-label albumin with isotopes results in information concerning its synthesis, breakdown, and distribution in the intra and extra cellular spaces. The iodination of albumin is a widespread procedure used in scientific studies. Bromine not only is more reactive and less expensive than iodine, but bonds more easily with many elements. Therefore, it could be a suitab...