BACKGROUND The effect of feeding a limited iodine diet on radioactive iodine uptake in the thyroid glands of hyperthyroid cats is unknown. OBJECTIVES To determine how feeding limited dietary iodine affects radioactive iodine uptake by the thyroid glands of hyperthyroid cats. ANIMALS Eight geriatric cats with spontaneous hyperthyroidism. METHODS Prospective study of eight client owned hype...

A method is described for the determination of serum thyroxine using ion-exchange resin sponges. The principle is based on the use of protein-binding sites and part of the technique is similar to the Triomet resin uptake test. An isotope extraction recovery procedure is incorporated in the method. Studies of factors influencing the analysis are reported and the results of tests of accuracy, pre...

Iodine fortification of plants is a means improving the nutritional iodine status for humans. However, knowledge regarding absorption and accumulation in remains limited. Hence, we used nutrient culture isotope tracking methods, radioactivity 125I was measured by using multi-channel spectrometer to study characteristics an eggplant. The results showed that detected stems leaves after 20 min inc...

10 normal young men received repository epinephrine repeatedly for 4 days during the course of a radiothyroxine (radio-T4) disappearance curve. During epinephrine administration, serum radio-T4 disappearance rate (k) slowed abruptly, fecal clearance decreased, urinary clearance was initially unchanged but later decreased slightly, volume of thyroxine distribution decreased, and external radioac...

We report iodine and bromine concentrations in a total of 256 samples of pore waters collected from all nine sites of ODP Leg 204, Hydrate Ridge. In a subset of these samples, we have also determined iodine ages in the fluids using the cosmogenic isotope I (T1/2 = 15.7 Ma). The presence of this cosmogenic isotope combined with the strong association of iodine with methane allows the identificat...

All-trans-retinoic acid (ATRA) can enhance iodine uptake capability of thyroid tumors, but the mechanisms remain poorly understood. The aim of the present study was to investigate the effects of ATRA on isotope susceptibility, proliferation and invasion of anaplastic thyroid carcinoma (ATC) and potential mechanisms. SW1736 cells were treated with 1 µmol/l ATRA or 1% ethanol for 5 days. A cell l...