Iodine and thyroid function

Iodine and thyroid function

Severe iodine deficiency causes hypothyroidism that results in impaired somatic growth and motor development in children. Mild and moderate iodine deficiencies cause multifocal autonomous growth of thyroid, which results in thyrotoxicosis. On the other hand, iodine excess is associated with the development of hypothyroidism and thyroid autoimmunity. In areas of iodine deficiency, a sudden incre...

Iodine-131 and Thyroid Function

Perchlorate consumption, iodine status, and thyroid function.

Perchlorate inhibits the uptake of iodide into the thyroid gland, thereby possibly affecting the synthesis of thyroid hormones. Pregnant women and their fetuses and newborns have the greatest potential for risk of adverse health effects following exposure to perchlorate. Perchlorate is present in some foods and in drinking water in certain areas of the United States. Based on the available info...

Goiter Prevalence, Urinary Iodine and Thyroid Function Tests in Inhibitants of Tehran City

Introduction: As the production, distribution and consumption of iodised salt has increased in recent years, this study was carried out to monitor the IDD control program in Tehran, in 1996.   Methods:1146 families comprising 5140 subjects intwenty districts of Tehran City from all age groups were randomly selected. Thyroid size was examined by palpation and graded according to WHO classifica...

Longitudinal trends in thyroid function in relation to iodine intake: ongoing changes of thyroid function despite adequate current iodine status.

OBJECTIVE Several cross-sectional studies on populations with iodine deficiency showed that TSH-levels are negatively associated with age, while in populations with high iodine intake TSH is positively associated with age. The question is whether such an age-thyroid function relation is an ongoing process apparent also in longitudinal studies and whether it reflects an actual iodine deficiency ...