Introduction to Iodine Excess

What is/are Iodine Excess?

Iodine Excess - Iodine excess was the influencing factor of thyroid secretory capacity ( β  = 0. ^[1] The benefit effect association between WIC and dyslipidemia appears in cases of iodine excess (>100 µg/L). ^[2] The purpose of this study was to explore the role of hypothalamus Dio2 in regulating TSH increase caused by excessive iodine and to determine the effects of iodine excess on thyrotropin-releasing hormone (TRH) levels. ^[3] Therefore, health education for children and residents on iodine deficiency disorders should be strengthened, and they should be properly guided and intervened to ensure that iodine deficiency is prevented while iodine excess is avoided. ^[4] 2 ug/g (35 – 540 ug/g) indicating that there was no residual iodine excess from the Iodoral. ^[5] At present, the actual iodine nutrition status of Chinese residents and whether they are adversely affected by iodine excess are issues of general concerns. ^[6] This personal narrative tracks the history of this epidemic in Tasmania during the 1960s, when it first appeared as iodine deficiency, then as iodine excess, how it was formally recognised and the events leading to its eventual treatment. ^[7] Iodine excess typically affects thyroid function in the human body and may damage carotid artery. ^[8] Thyroid dysfunction due to dietary iodine excess was initially suspected. ^[9] For those found to have iodine excess (with serum iodine concentration (SIC) > 92 μg/L), a prospective follow-up was conducted until termination of the pregnancy or 1 week postpartum. ^[10] Conclusion: The current iodine status among pregnant North Indian women indicates a trend toward Iodine excess, with a significant association with the high prevalence of thyroid autoimmunity in the study population. ^[11] Objective To assess the application value of indicators of iodine metabolism in identifying iodine excess during pregnancy. ^[12] 72%) with iodine excess, according to the urinary iodine (UI) status of pregnant women. ^[13] CONCLUSION Colombian children and WRA had mUIC well above conventional cutpoints of iodine excess. ^[14] Iodine deficiency is associated with serious complications, but also iodine excess can lead to thyroid dysfunction, and iodine supplementation aimed to prevent iodine deficiency disorders has been associated with development of thyroid autoimmunity. ^[15] In this study, a total of 33 papillary thyroid cancer (PTC) patients from areas with iodine excess and 32 PTC patients from areas with adequate iodine were recruited, and their cancerous tissue and paracancerous tissue were collected. ^[16] Summary: Sources of dietary iodine, its assessment, recommended dietary intake, and consequences of iodine excess are outlined. ^[17] At the same time iodine excess may also contribute to thyroid cancer. ^[18] We hypothesize that this improvement could be related to the iodine excess and mechanisms independent of its action on thyroid. ^[19] The purpose of this meta-analysis is to comprehensively investigate the effect of iodine excess on children's intellectual development in areas with high iodine levels in their drinking water. ^[20] Both chronic iodine deficiency or iodine excess have been associated with hypertrophy and hyperplasia of follicular cells in thyroid gland and the influence of thyroid hormone (T3, T4) and thyrotropin (TSH) secretion. ^[21] Compared with those with more than adequate iodine status, individuals with iodine deficiency, adequate iodine status and iodine excess all had higher risk of TAI, and the adjusted ORs were 1. ^[22] The UIC level of children in the study was 386 μg/l (IQR 200–525 μg/l), signifying iodine excess. ^[23] It is well established that iodine excess inhibits transiently the thyroid function. ^[24] Some environmental factors like iodine excess (for example mandatory salt iodination), infectious diseases, smoking, alcohol, stress, selenium status, dioxins, or radiation exposure are discussed as associated with increased risk of GD in children [1–4]. ^[25] There were 9 banners (cities, districts) where children were at the iodine appropriate level, 4 banners (cities, districts) were higher than the iodine appropriate level and 1 banner was at iodine excessive level. ^[26] Of the articles reviewed, the majority sought to determine the prevalence of iodine status of the study populations; others measured the impact of uncontrolled and unmonitored salt iodisation on iodine excess and tested the effectiveness of water iodisation. ^[27] As we are moving from iodine deficiency status to iodine adequate or iodine excess status there might be an increased burden of thyroid disorders in Nepal due to the increased prevalence of autoimmune thyroiditis. ^[28] 6%) as well as iodine excess (54. ^[29] We found that the proportion of tumor diameters ≥ 1 cm in the iodine excess group were lower than that in the iodine non-excess group. ^[30] On the other hand, we have studies on rodents that showed an impact of chronic iodine excess on pituitary thyroid axis function []. ^[31] Drinking water with high levels of iodine has been identified as the key contributor to iodine excess, but the mechanisms of neurotoxicity induced by excessive iodine remain elusive. ^[32] 05); the iodine levels of lactating women in low iodine areas, adaptive iodine areas and high iodine areas were in the state of iodine deficiency (< 100 μg/L), sufficient or adequate (200-299 μg/L) and iodine excess status (≥300 μg/L), respectively. ^[33] Then, between-group meta-analyses to compare the incidence rate of iodine excess were also conducted. ^[34] The optimal StI and SnbI threshold values for defining iodine excess in children were 101 and 56. ^[35] Iodine excess exerts its effect on the thyroid gland in two ways. ^[36] This study was carried out to monitor current iodization and its impact on iodine excess. ^[37] Conclusions In water iodine ≥300 μg/L group, urinary iodine level of pregnant women is in the level of iodine excess, and serum iodine level, FT4 level, thyroid nodules detection rate are higher. ^[38] Whereas I/Cr ratio was not a significant risk factor for TNs in pregnant women when adjusted for potential confounders, iodine excess (I/Cr ratio >500 μg/g) was a risk factor in pregnant women in their second trimester. ^[39] According to the results of iodine nutritional status, the pregnant women in the second trimester pregnancy were divided into iodine deficiency subgroup (G1 subgroup), iodine excess subgroup (G2 subgroup), and iodine sufficiency subgroup (G3 subgroup), respectively. ^[40] This article reviews the available biomarkers of iodine status and their relative utility at the level of both populations and individuals for the investigation of iodine deficiency and iodine excess. ^[41] Importantly, both iodine deficiency and iodine excess (IE) impair thyroid hormone synthesis, causing serious health problems especially during fetal/neonatal development. ^[42] Breastfeeding women living in areas with high water iodine content had a greater likelihood of iodine sufficiency or iodine excess [odds ratio ( P  = 0. ^[43] According to the urinary iodine level, these subjects were divided into the iodine deficiency group (urinary iodine<100 μg/L), the iodine enough group (urine iodine 100-199 μg/L), the iodine adequate group (urine iodine 200-299 μg/L) and the iodine excessive group (urine iodine≥300 μg/L). ^[44] Iodine deficiency and iodine excess have severe consequences on human health and have been associated with the presence of goiter, hypothyroidism, hyperthyroidism, thyroid cancer, thyroid nodules and thyroid autoimmunity, poor mental health, and impaired intellectual development. ^[45] Objective To analyze the iodine nutritional status among key populations in non-iodine excess areas of Shandong Province in 2017. ^[46] 86% (445/875)] of urinary iodine ≥300 μg/L (iodine excess) group and < 100 μg/L (iodine deficiency) group were higher than that of 100 - 199 μg/L group [44. ^[47]

iodine excess statu

As we are moving from iodine deficiency status to iodine adequate or iodine excess status there might be an increased burden of thyroid disorders in Nepal due to the increased prevalence of autoimmune thyroiditis. ^[1] 05); the iodine levels of lactating women in low iodine areas, adaptive iodine areas and high iodine areas were in the state of iodine deficiency (< 100 μg/L), sufficient or adequate (200-299 μg/L) and iodine excess status (≥300 μg/L), respectively. ^[2]