scholarly journals Assesment of Iodine Deficiency in Patients with Nodular Goiter Living in the Precarpatian Region

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Lilija Rybchak
Keyword(s):  
Iodine Deficiency ◽  
Randomized Study ◽  
Nodular Goiter ◽  
State Institution ◽  
Iodine Concentration ◽  
Thyroid Stimulating Hormone ◽  
The State ◽  
Average Value ◽  
Iodine Excretion ◽  
Stimulating Hormone

The objective of the research was to assess the state of iodine supply of patients with nodular goiter living in the Precarpathian region. Materials and methods: 56 patients with nodular goiter were examined (38 women and 18 men), the average age of patients was 48 years. WHO / UNICEF / ICCIDD guidelines were used to assess the severity of iodine deficiency: goiter frequency according to palpation and ultrasound examinations, median of iodine excretion in urine, thyroid-stimulating hormone (TSH) and thyroglobulin levels. Determination of iodine concentration in urine was conducted by the method of “blind”, closed randomized study in single portions of urine according to the Sandell-Kolthoff reaction by the method of Dunn et al. in the laboratory of epidemiology of endocrine diseases at  the State Institution “V.P. Komisarenko Institute of Endocrinology and Metabolism” (supervisor – Professor VI Kravchenko). Results. According to the results of the study of iodine in the urine, the data with an average value of 85.9 μg/l were obtained. The median of thyroglobulin serum was in the range of 12.27 ng/L. Levels of thyroid-stimulating hormone were average in patients with nodular goiter of I and II grades constituting 3.13 mU/l (table 2). The level of thyroglobulin median was noted to be the highest in patients with thyroid size corresponding to grade II. Conclusions. The results of the study of iodine in the urine of patients with nodular goiter of grades I and II living in the Precarpathian region indicated a mild level of iodine deficiency. The presence of iodine deficiency necessitated both mass (the use of iodized salt by the population) and individual iodine prevention (prescribing potassium iodide).

scholarly journals The correlation between breast cancer and urinary iodine excretion levels

2017 ◽  
Vol 46 (2) ◽  
pp. 687-692 ◽  
Author(s):  
Fatma Umit Malya ◽  
Huseyin Kadioglu ◽  
Mustafa Hasbahceci ◽  
Kemal Dolay ◽  
Mehmet Guzel ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Blood Urea Nitrogen ◽  
Menopausal Status ◽  
Urinary Iodine ◽  
Iodine Concentration ◽  
Thyroid Stimulating Hormone ◽  
Urinary Iodine Excretion ◽  
Urea Nitrogen ◽  
Iodine Excretion ◽  
Stimulating Hormone

Objective To compare urinary iodine excretion levels in patients with breast cancer and control subjects. Methods In this prospective pilot study, patients with breast cancer and normal controls were recruited. Age and menopausal status were recorded. Levels of serum thyroid-stimulating hormone, blood urea nitrogen and creatinine and urine iodine concentration (UIC) were measured. UIC levels were divided into three categories: low (<100 µg/l), normal (100–200 µg/l) or high (>200 µg/l). Results A total of 24 patients with breast cancer and 48 controls were included in the study. There were no statistically significant differences between the two groups with regard to thyroid-stimulating hormone, blood urea nitrogen or creatinine levels. When considered overall, there was no statistical difference in UIC between patients and controls. However, comparisons within each category (low, normal or high UIC) showed a significantly higher percentage of patients with breast cancer had a high UIC compared with controls. Conclusions A high UIC was seen in a significantly higher percentage of patients with breast cancer than controls. UIC may have a role as a marker for breast cancer screening. Further studies evaluating UIC and iodine utilization in patients with breast cancer are warranted.

Maternal iodine status and neonatal thyroid-stimulating hormone concentration: a community survey in Songkhla, southern Thailand

2009 ◽  
Vol 12 (12) ◽  
pp. 2279-2284 ◽  
Author(s):  
Somchit Jaruratanasirikul ◽  
Pasuree Sangsupawanich ◽  
Ounjai Koranantakul ◽  
Prasin Chanvitan ◽  
Prasit Ruaengrairatanaroj ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Iodine Deficiency ◽  
Urinary Iodine ◽  
Iodine Intake ◽  
Thyroid Stimulating Hormone ◽  
Iodized Salt ◽  
Urinary Iodine Excretion ◽  
Southern Thailand ◽  
Iodine Excretion ◽  
Stimulating Hormone

AbstractObjectiveTo determine iodine intake and urinary iodine excretion (UIE) in a group of pregnant Thai women and the concentration of thyroid-stimulating hormone (TSH) in their neonates.DesignA prospective cohort study.SettingThree districts of Songkhla, southern Thailand.SubjectsTwo hundred and thirty-six pregnant women.ResultsA quarter of the participants lacked knowledge of iodine and the prevention of iodine deficiency, although 70 % used iodized salt. Those who did not use iodized salt stated that they had no knowledge about iodine (57 %) and no iodized salt was sold in their village (36 %). The median iodine intake in the three districts was 205–240 μg/d, with 53–74 % of pregnant women having iodine intake <250 μg/d. The median UIE in the three districts was 51–106 μg/l, with 24–35 % having UIE < 50 μg/l. The mean neonatal TSH was 2·40 (sd1·56) mU/l, with 8·9 % of neonates having TSH > 5 mU/l.ConclusionsThe studied women and their fetuses were at risk of mild iodine deficiency. About a quarter of the participants lacked knowledge of the importance of iodine. Education regarding the importance of iodine supplements and the promotion of iodized salt should be added to national health-care policies in order to prevent iodine-deficiency disorders, diseases that are subclinical but have long-term sequelae.

scholarly journals Comparison of iodine status pre- and post-mandatory iodine fortification of bread in South Australia: a population study using newborn thyroid-stimulating hormone concentration as a marker

2019 ◽  
Vol 22 (16) ◽  
pp. 3063-3072 ◽  
Author(s):  
Molla Mesele Wassie ◽  
Lisa N Yelland ◽  
Lisa G Smithers ◽  
Enzo Ranieri ◽  
Shao Jia Zhou
Keyword(s):  
Iodine Deficiency ◽  
Urinary Iodine ◽  
South Australia ◽  
Interrupted Time Series ◽  
Iodine Concentration ◽  
Thyroid Stimulating Hormone ◽  
Transitional Period ◽  
Urinary Iodine Concentration ◽  
Iodine Status ◽  
Stimulating Hormone

AbstractObjective:The present study aimed to evaluate the effect of mandatory iodine fortification of bread on the iodine status of South Australian populations using newborn thyroid-stimulating hormone (TSH) concentration as a marker.Design:The study used an interrupted time-series design.Setting:TSH data collected between 2005 and 2016 (n 211 033) were extracted from the routine newborn screening programme in South Australia for analysis. Iodine deficiency is indicated when more than 3 % of newborns have TSH > 5 mIU/l.Participants:Newborns were classified into three groups: the pre-fortification group (those born before October 2009); the transition group (born between October 2009 and June 2010); and the post-fortification group (born after June 2010).Results:The percentage of newborns with TSH > 5 mIU/l was 5·1, 6·2 and 4·6 % in the pre-fortification, transition and post-fortification groups, respectively. Based on a segmented regression model, newborns in the post-fortification period had a 10 % lower risk of having TSH > 5 mIU/l than newborns in the pre-fortification group (incidence rate ratio (IRR) = 0·90; 95 % CI 0·87, 0·94), while newborns in the transitional period had a 22 % higher risk of having TSH > 5 mIU/l compared with newborns in the pre-fortification period (IRR = 1·22; 95 % CI 1·13, 1·31).Conclusions:Using TSH as a marker, South Australia would be classified as mild iodine deficiency post-fortification in contrast to iodine sufficiency using median urinary iodine concentration as a population marker. Re-evaluation of the current TSH criteria to define iodine status in populations is warranted in this context.

Subclinical Hyperthyroidism: Diagnostic Criteria and Principles of Treatment

2016 ◽  
pp. 75-79
Author(s):  
Vita Galitskaya
Keyword(s):  
Hormone Receptors ◽  
Color Doppler ◽  
Specific Treatment ◽  
Nodular Goiter ◽  
Thyroid Stimulating Hormone ◽  
Free Thyroxine ◽  
Subclinical Hyperthyroidism ◽  
Mineral Density ◽  
Free Triiodothyronine ◽  
Stimulating Hormone

This article presents the European Thyroid Association guidelines for diagnosis and treatment of subclinical hyperthyroidism, 2015. Determination of thyroid1stimulating hormone levels can help to diagnose a variety of pathological conditions: hypertension, cardiac fibrillation, atrial fibrillation, mineral density reduction in bones, menstrual irregularities, infertility, which require specific treatment after detection of hormonal status disorders (subclinical, overt), taking into account the patient’s age. Diagnosis of endogenous subclinical hyperthyroidism is based solely on the results of laboratory tests, not clinical criteria. Endogenous subclinical hyperthyroidism is defined by the presence of sub-normal levels of thyroid-stimulating hormone with normal levels of free thyroxine, total triiodothyronine, and/or free triiodothyronine. There are two categories of endogenous subclinical hyperthyroidism: stage 1 – the level of thyroid-stimulating hormone is 0,1–0,39 mIU/l; stage 2 – the level of thyroid-stimulating hormone is <0.1 mIU/l. The levels of free thyroxine and free triiodothyronine, as a rule, are medium-high value at a subclinical level of thyroid hormone and can help differentiate between endogenous subclinical hyperthyroidism from overt hyperthyroidism. It is recommended to study the thyroid-stimulating hormone level as the first test for the diagnosis of subclinical hyperthyroidism. In identifying low levels of thyroid-stimulating hormone it is necessary to investigate the level of free thyroxine, free or bound triiodothyronine. Patients with primary sub-normal levels of thyroid-stimulating hormone with concentration of thyroid hormones in the upper limit or in normal range should be evaluated within 2-3 months. It is recommended to perform scintigraphy and possible 24-hour test the absorption of radioactive iodine if in patient with 2nd degree endogenous subclinical hyperthyroidism there is nodular goiter to determine treatment strategy. Ultrasonography with color Doppler can be informative for patients with endogenous subclinical hyperthyroidism and nodular goiter. Determining the level of antibodies to thyroid-stimulating hormone receptors can confirm the etiology of autoimmune-induced hyperthyroidism.

Neonatal thyroid‐stimulating hormone concentrations in northern Sydney: further indications of mild iodine deficiency?

2002 ◽  
Vol 176 (7) ◽  
pp. 317-320 ◽  
Author(s):  
Aidan McElduff ◽  
Patrick McElduff ◽  
Jenny E Gunton ◽  
Graham Hams ◽  
Veronica Wiley ◽  
...  
Keyword(s):  
Iodine Deficiency ◽  
Thyroid Stimulating Hormone ◽  
Stimulating Hormone

scholarly journals Neonatal Thyroid-Stimulating Hormone Concentrations in Belgium: A Useful Indicator for Detecting Mild Iodine Deficiency?

PLoS ONE ◽  
2012 ◽  
Vol 7 (10) ◽  
pp. e47770 ◽  
Author(s):  
Stefanie Vandevijvere ◽  
Wim Coucke ◽  
Jean Vanderpas ◽  
Caroline Trumpff ◽  
Maarten Fauvart ◽  
...  
Keyword(s):  
Iodine Deficiency ◽  
Thyroid Stimulating Hormone ◽  
Stimulating Hormone

scholarly journals Thyroid stimulating hormone isn’t a sensitive indicator of iodine nutritional status in schoolchildren

2016 ◽  
Vol 14 (3) ◽  
pp. 350
Author(s):  
Renata De Oliveira Campos ◽  
Joaquim Custódio Silva Júnior ◽  
Elton Estrela Ramos
Keyword(s):  
Public Schools ◽  
Nutritional Status ◽  
Filter Paper ◽  
Urinary Iodine ◽  
Iodine Concentration ◽  
Thyroid Stimulating Hormone ◽  
Urinary Iodine Concentration ◽  
Iodine Nutrition ◽  
Cross Sectional ◽  
Stimulating Hormone

<p><strong><em>Introduction:</em></strong><em> iodine deficiency </em><em>disorders (IDD)</em><em> </em><em>are most common cause of preventable brain damage, mental retardation and stunted growth in children</em><em> worldwide. Several indicators are complementary to urinary iodine concentration (UIC) for assessing iodine nutritional status, as thyroid size, thyroglobulin (Tg) and thyroid stimulating hormone (TSH) concentrations in the blood.</em><strong><em> Objective:</em></strong><em> </em><em>analyze TSH in filter paper blood values and correlate with UIC in schoolchildren from public school at state of Bahia, Brazil</em><em>. <strong>Methodology: </strong></em><em>cross-sectional study was conducted in 880 schoolchildren aged 6-14 years, randomly selected, of public schools in five cities of four micro-regions of Bahia between October 2013 and September 2014. TSH was analyzed in filter-paper blood and UIC were measured by adapted Sandell-Kolthoff reaction. </em><strong><em>Results:</em></strong><em> 880 blood samples on filter-paper were analyzed for TSH. The reference range previously established is 0.72 to 6.0 </em><em>μ</em><em>UI/mL</em><em>. Results of this research TSH dosage ranged from 0.24 </em><em>μ</em><em>IU/L to</em><em> 7.71 </em><em>μ</em><em>IU/L,</em><em> with a mean of 1.01±0.55 </em><em>μ</em><em>UI/L</em><em> and median 0.89 </em><em>μ</em><em>UI/L</em><em>. Only one child presented TSH greater than 6.0 (7.71 </em><em>μ</em><em>IU/L); however, results of urinary iodine were consistent with a more than adequate nutrition iodine (243.70</em><em>μ</em><em>g/L). There’ no correlation between TSH and UIC (r= 0.115; p= 0.002)</em><em>.</em><em> </em><strong><em>Conclusion:</em></strong><em>  in the present study, schoolchildren showed low values of TSH, but the mean UIC was indicative of adequate iodine nutrition</em><em>.</em><em></em></p>

scholarly journals Neonatal Thyroid-Stimulating Hormone Screening as an Indirect Method for the Assessment of Iodine Status in Central Siberia

2018 ◽  
Vol 3 (4) ◽  
Keyword(s):  
Newborn Screening ◽  
Congenital Hypothyroidism ◽  
Iodine Deficiency ◽  
Screening Program ◽  
Thyroid Stimulating Hormone ◽  
The Arctic ◽  
Central Siberia ◽  
Iodine Status ◽  
The Republic ◽  
Stimulating Hormone

Background: Iodine deficiency is associated with goiter and impaired brain function. Neonatal thyroid-stimulating hormone (TSH) screening for congenital hypothyroidism used as an indicator of the degree of iodine deficiency and of its control. An increased frequency of thyroid-stimulating hormone (TSH) measurements above 5 mIU/L in newborn screening corresponds to the impaired iodine status of the population. The aim: to estimate the iodine deficiency and the effectiveness of iodine prophylaxis in Krasnoyarsk territory, Republics of Tuva and Khakassia according the results of neonatal TSH_screening. Methods: An 18-year analysis was performed in 34,980 newborns participating in the national thyroid newborn screening program. The TSH concentration was measured in dry blood spots collected by heel stick on filter paper, 96 hours after birth, using DELFIA method. Results: According to the data of the congenital hypothyroidism screening the rate of TSH < 5 mU/1 was 11.8% in Krasnoyarsk territory (23.9% in 2000) and corresponded to mild iodine deficiency. In different regions of Krasnoyarsk territory the rate of TSH < 5 mU/1 in the newborn varied from 3.5% to 23.7%. The highest values were marked in the Arctic peninsula Taimyr, in cities Zheleznogorsk (nuclear facility) and Sosnovoborsk, in Irbeysky, Suchobuzimsky, Eniseysky, Tuchtetsky, Novoselovsky regions (20.9–23.7%). In the Republic of Khakasia the rate of TSH < 5 mU/1 was 12.5%. In the Republic of Tyva the rate of TSH < 5 mU/1 was – 6.6% (38.6% in 1997; 11.5% in 2000). These results indicate mild iodine deficiency. Conclusion: Our investigations show mild iodine deficiency in Central Siberia demanding continuous adequate iodine prevention. Additional assessment of the iodine intake in the regions with mild iodine deficiency is needed to prevent suboptimal cognitive and psychomotor outcomes.

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