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Iodine deficiency

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https://www.readbyqxmd.com/read/28230748/an-increase-in-consuming-adequately-iodized-salt-may-not-be-enough-to-rectify-iodine-deficiency-in-pregnancy-in-an-iodine-sufficient-area-of-china
#1
Zhifang Wang, Wenming Zhu, Zhe Mo, Yuanyang Wang, Guangming Mao, Xiaofeng Wang, Xiaoming Lou
Universal salt iodization (USI) has been implemented for two decades in China. It is crucial to periodically monitor iodine status in the most vulnerable population, such as pregnant women. A cross-sectional study was carried out in an evidence-proved iodine-sufficient province to evaluate iodine intake in pregnancy. According to the WHO/UNICEF/ICCIDD recommendation criteria of adequate iodine intake in pregnancy (150-249 µg/L), the median urinary iodine concentration (UIC) of the total 8159 recruited pregnant women was 147...
February 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28228508/breast-milk-iodine-concentration-is-a-more-accurate-biomarker-of-iodine-status-than-urinary-iodine-concentration-in-exclusively-breastfeeding-women
#2
Susanne Dold, Michael B Zimmermann, Abdelmounaim Aboussad, Mohamed Cherkaoui, Qingzhen Jia, Tomislav Jukic, Zvonko Kusic, Antonio Quirino, Zhongna Sang, Teofilo Ol San Luis, Elena Vandea, Maria Andersson
Background: Iodine status in populations is usually assessed by the median urinary iodine concentration (UIC). However, iodine is also excreted in breast milk during lactation; thus, breast milk iodine concentration (BMIC) may be a promising biomarker of iodine nutrition in lactating women. Whether the mammary gland can vary fractional uptake of circulating iodine in response to changes in dietary intake is unclear.Objective: We evaluated UIC and BMIC as biomarkers for iodine status in lactating women with a wide range of iodine intakes...
February 22, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28224254/iodine-deficiency-status-in-the-who-eastern-mediterranean-region-a-systematic-review
#3
REVIEW
Masoumeh Mohammadi, Fereidoun Azizi, Mehdi Hedayati
Iodine deficiency is a global public health issue because iodine plays a major role in the thyroid hormone synthesis and is essential for normal neurological development. This review summarizes the publications on iodine status in the WHO Eastern Mediterranean Region (EMR) countries. All related studies available in main national and international databases were systematically searched using some specific keywords to find article published between 1909 and 2015. The prevention of iodine deficiency disorders (IDDs) in the WHO EMR countries is currently under control without significant side effects...
February 21, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28222819/reliability-of-thyroglobulin-in-serum-compared-with-urinary-iodine-when-assessing-individual-and-population-iodine-nutrition-status
#4
Stig Andersen, Paneeraq Noahsen, Louise Westergaard, Peter Laurberg
The occurrence of thyroid disorders relies on I nutrition and monitoring of all populations is recommended. Measuring I in urine is standard but thyroglobulin in serum is an alternative. This led us to assess the reliability of studies using serum thyroglobulin compared with urinary I to assess the I nutrition level and calculate the number of participants needed in a study with repeated data sampling in the same individuals for 1 year. Diet, supplement use and life style factors were assessed by questionnaires...
February 22, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28219157/-long-term-effect-of-iodine-deficiency-on-growth-and-food-utilization-rate-in-second-filial-generation-rats
#5
Ainiwaer Muyeseer, G X Zhang, J Wang, Y Liu, X H Meng, Q Liu
Objective: To study the effect of iodine deficiency on body weight, food consumption, and food utilization rate of second filial generation Wistar rats. Methods: According to the food pattern of a high-iodine deficient population, two types of low-iodine food have been produced using the main crops grown in this area (iodine levels of 50 and 20 μg/kg, respectively). Wistar rats were randomly divided into three groups, normal iodine group (NI group), low-iodine group one (LI group) and low-iodine group two (LII group), using the random number table method and fed diets containing 300, 50, and 20 μg/kg of iodine, respectively...
February 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28217504/improving-iodine-nutritional-status-and-increasing-prevalence-of-autoimmune-thyroiditis-in-children
#6
Srinivasan Palaniappan, Lakshmi Shanmughavelu, Hemchand K Prasad, Sundari Subramaniam, Nedunchezian Krishnamoorthy, Lakshmi Lakkappa
OBJECTIVE: The objective of this study is to evaluate the link between excess iodine intake as evidenced by increased urinary iodine excretion (UIE) and autoimmune thyroiditis in children and to assess the correlation between UIE and thyroid microsomal antibody (thyroid peroxidase [TPO]) titers in children. MATERIALS AND METHODS: All children with goiter between age group 6 and 12 years, were subjected to blood tests for free thyroxine, thyroid stimulating hormone, and TPO antibody, fine needle aspiration was advised for all children with goiter...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28215480/factors-affecting-sustainable-iodine-deficiency-elimination-in-pakistan-a-global-perspective
#7
REVIEW
Rehman Mehmood Khattak, Muhammad Nasir Khan Khattak, Till Ittermann, Henry Völzke
Iodine deficiency remains a considerable challenge worldwide, even after decades of efforts to address the problem. The aim of this review is to present the current situation in historically iodine-deficient Pakistan regarding iodine nutritional status and place it in a global perspective. We collected relevant articles from online bibliographic databases and websites of concerned organizations that addressed prevalence of goiter/iodine deficiency and barriers to sustainable control. We divided the studies into pre- and post-1994, a landmark year when Pakistan formally adopted the universal salt iodization (USI) programme...
February 16, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28212640/urinary-iodine-in-early-pregnancy-is-associated-with-subclinical-hypothyroidism-in-tianjin-china-an-observational-study
#8
Kunling Wang, Jie Zhang, Fengao Li, Wanqi Zhang, Hao Wang, Li Ding, Yaxin Liu, Laixiang Lin, Shuang Zhang, Mei Zhu
BACKGROUND: Subclinical hypothyroidism (SH) is associated with adverse obstetric outcomes and neurodevelopment disorders. Both iodine deficiency and excess are associated with SH; however, few data regarding iodine nutrition status of pregnant women with SH are available. This study aimed to clarify whether iodine deficiency or excess is associated with SH, especially, when test results for anti-thyroid autoantibodies are negative. METHODS: A total of 115 women with SH and 104 women with euthyroidism (EH) in early pregnancy in Tianjin, China were investigated, and their serum thyroid-stimulating hormone, free thyroxine, free triiodothyronine, anti-thyroid peroxidase antibody (TPOAb), anti-thyroid globulin antibody (TGAb), urinary iodine (UIC), and urinary creatinine (UCr) concentrations were measured...
February 17, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28202636/moderate-to-severe-iodine-deficiency-in-the-first-1000-days-causes-more-thyroid-hypofunction-in-infants-than-in-pregnant-or-lactating-women
#9
Sara Stinca, Maria Andersson, Isabelle Herter-Aeberli, Laila Chabaa, Mohamed Cherkaoui, Nawal El Ansari, Abdelmounaim Aboussad, Sandra Weibel, Michael B Zimmermann
Background: Iodine deficiency early in the life cycle-the "first 1000 days"-can cause hypothyroidism and irreversibly impair neuromotor development. However, the relative vulnerability among women and infants during this critical period is unclear, making it difficult for country-based programs with limited resources to prioritize their iodine interventions.Objective: Our aim was to determine the prevalence of thyroid hypofunction in women and infants living in an area of moderate-to-severe iodine deficiency...
February 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28194694/thyroid-status-of-iodine-deficient-newborn-infants-living-in-central-region-of-turkey-a-pilot-study
#10
Osman Bastug, Levent Korkmaz, Hulya Halis, Seyma Memur, Sabriye Korkut, Ahmet Ozdemir, Tamer Gunes, Mehmet Adnan Ozturk, Selim Kurtoglu
BACKGROUND: Iodine deficiency (ID) during the fetal and neonatal periods can lead to neonatal hypothyroidism. This study was conducted to evaluate the effect of ID on the thyroid hormone level of newborns living in Turkey. METHODS: Between 1998 and 2013, 71 newborns with a urinary iodine concentration <100 μg/L were recruited into the study. Data on thyroid volume, free triiodothyronine (fT3), free thyroxine (fT4), thyroid stimulating hormone (TSH), and thyroglobulin (Tg) were collected from all newborns, and on breast milk iodine from their mothers...
February 14, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28159506/elimination-of-iodine-deficiency-disorders-from-the-americas-a-public-health-triumph
#11
Eduardo A Pretell, Elizabeth N Pearce, Sergio A Moreno, Omar Dary, Roland Kupka, Małgorzata Gizak, Jonathan Gorstein, Ruben Grajeda, Michael B Zimmermann
No abstract text is available yet for this article.
January 31, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28159025/iodine-status-and-thyroid-nodules-in-females-a-comparison-of-cyprus-and-romania
#12
S Gaengler, X D Andrianou, A Piciu, P Charisiadis, C Zira, K Aristidou, D Piciu, K C Makris
OBJECTIVES: The increased comparative prevalence rates of thyroid cancer in Cyprus (>EU average) led us to conduct this study on possible risk factors of thyroid nodules. Romania served as a reference with a comparative thyroid cancer prevalence < EU average. This study aimed to assess the association between urinary iodine (UI) and thyroid nodules in adult females (n = 208) from Cyprus and Romania. STUDY DESIGN: A case-control study (n = 208). METHODS: Cases were females with ultrasound-confirmed thyroid nodules and controls with confirmed absence of nodules...
February 2017: Public Health
https://www.readbyqxmd.com/read/28126204/the-relationship-between-iron-level-and-thyroid-function-during-the-first-trimester-of-pregnancy-a-cross-sectional-study-in-wuxi-china
#13
Jinyan Fu, Anqiang Yang, Jun Zhao, Yunlong Zhu, Ying Gu, Yaohui Xu, Daozhen Chen
Our objective was to evaluate the relationship between iron level and thyroid function during the first trimester of pregnancy in Eastern China. This was a hospital-based, cross-sectional observational study. A total of 1764 pregnant women were enrolled during their first trimester of gestation in Wuxi city. Serum ferritin (SF), hemoglobin (Hb), urinary iodine concentrations (UIC), thyroid-stimulating hormone (TSH), free thyroxine (FT4) and free triiodothyronine (FT3) were measured and evaluated in pregnant women...
January 22, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28124062/prevalence-of-thyroid-disorders-in%C3%A2-elderly-people-in-germany-a-screening-study-in-a-country-with%C3%A2-endemic-goitre
#14
Frederik A Verburg, Inge Grelle, Kathrin Tatschner, Christoph Reiners, Markus Luster
AIM: In a screening study on people of working age the prevalence of morphological thyroid disorders was 33.1 %. It is not known precisely whether this further increases after retirement. The present study aimed to establish whether the increase in the prevalence of morphological and functional thyroid disorders continues beyond working age in elderly citizens. METHODS: 223 participants were recruited in an institute for geriatric rehabilitative medicine. All patients were screened by thyroid ultrasound, measurement of serum levels of thyroid hormones and thyroid related autoantibodies as well as measurement of urinary iodine excretion...
January 26, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28112064/nutrition-infection-and-stunting-the-roles-of-deficiencies-of-individual-nutrients-and-foods-and-of-inflammation-as-determinants-of-reduced-linear-growth-of-children
#15
D Joe Millward
The regulation of linear growth by nutritional and inflammatory influences is examined in terms of growth-plate endochondral ossification, in order to better understand stunted growth in children. Linear growth is controlled by complex genetic, physiological, and nutrient-sensitive endocrine/paracrine/autocrine mediated molecular signalling mechanisms, possibly including sleep adequacy through its influence on growth hormone secretion. Inflammation, which accompanies most infections and environmental enteric dysfunction, inhibits endochondral ossification through the action of mediators including proinflammatory cytokines, the activin A-follistatin system, glucocorticoids and fibroblast growth factor 21 (FGF21)...
January 23, 2017: Nutrition Research Reviews
https://www.readbyqxmd.com/read/28103778/the-role-of-the-world-health-organization-in-eliminating-iodine-deficiency-worldwide
#16
Paulina Karwowska, Joao Breda
BACKGROUND: Iodine deficiency has been one of the most prevalent micronutrient deficiencies in the world, causing many health disorders, particularly in pregnant women and children. Despite increased salt iodization in some countries and regions, the process has lacked global coordination and sustainability, two prerequisites for reaching the aim of eliminating iodine deficiency. This goal can be reached only by evidence-based, effectively monitored joint and committed actions of all countries...
January 18, 2017: Recent Patents on Endocrine, Metabolic & Immune Drug Discovery
https://www.readbyqxmd.com/read/28103777/role-of-iodine-in-metabolism
#17
Szybiński Zbigniew
The natural resources of iodine are seawater, seaweeds and saltpeter-nitrate deposits in Chile. Over 1/3 of the global population is exposed to iodine deficiency, especially in the mountains. Iodine is a component of the thyroid hormones and a strong antioxidant with electric potential of -0.54 V. Iodine as iodide is taken up by the thyroid gland, gastric mucosa, salivary glands and mammary glands in pregnant and breast-feeding women. The transport of iodine to the thyroid gland is regulated by specific enzymes: Natrium-Iodine Symporter, Na+/K+ATP-ase, Pendrin and Apical Iodine Transporter...
January 19, 2017: Recent Patents on Endocrine, Metabolic & Immune Drug Discovery
https://www.readbyqxmd.com/read/28098046/monitoring-the-effects-of-iodine-prophylaxis-in-the-adult-population-of-southern-italy-with-deficient-and-sufficient-iodine-intake-levels-a-cross-sectional-epidemiological-study
#18
Daniela Bonofiglio, Stefania Catalano, Anna Perri, Marta Santoro, Lorenza Siciliano, Danilo Lofaro, Massimiliano Gallo, Stefania Marsico, Rosalinda Bruno, Cinzia Giordano, Ines Barone, Sebastiano Andò
I prophylaxis is the most effective strategy to eradicate I deficiency disorders, but it has been shown to affect the thyroid disease pattern. In this study, we assessed the frequency of thyroid disorders in an adult population living in two areas of southern Italy after implementing I prophylaxis. To this aim, a cross-sectional, population-based study including 489 subjects from an I-deficient rural and an I-sufficient urban area of southern Italy was conducted. Thyroid ultrasound was performed on all participants, and urine and blood samples were collected from each subject...
January 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28079353/historical-aspects-of-iodine-deficiency-control
#19
REVIEW
Jean-Baptiste Vanderpas, Rodrigo Moreno-Reyes
In 1895, iodine was characterized as an essential element of thyroid tissue by Baumann. The efficacy of iodine to prevent goiter was demonstrated by Marine in Northern USA in 1916-1920. Severe endemic goiter and cretinism had been almost entirely eliminated from continental Western Europe and Northern America before the 1930's; however large populations elsewhere and even some places in Western Europe (Sicily) were still affected up to the 2000's. Public health consequences of iodine deficiency are not limited to endemic goiter and cretinism...
April 2017: Minerva Medica
https://www.readbyqxmd.com/read/28079352/the-way-forward-in-italy-for-iodine
#20
REVIEW
Antonella Olivieri, Caterina DI Cosmo, Simona DE Angelis, Roberto DA Cas, Paolo Stacchini, Augusto Pastorelli, Paolo Vitti
Italy is dealing with iodine deficiency since ancient times. In 1848 an ad hoc committee appointed by the king of Sardinia, identified extensive areas afflicted by endemic goiter and endemic cretinism in Piedmont, Liguria and Sardinia. Since then many epidemiological studies have been conducted in our country. These showed that iodine deficiency was present not only in mountain areas but also in coastal areas. In 1972 the iodization of salt at 15 mg/kg was allowed by law and iodized salt was distributed on request to selected endemic areas...
April 2017: Minerva Medica
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