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https://www.readbyqxmd.com/read/28333271/impact-of-thyroid-autoimmunity-in-euthyroid-women-on-live-birth-rate-after-iui
#1
D Unuane, B Velkeniers, B Bravenboer, P Drakopoulos, H Tournaye, J Parra, M De Brucker
STUDY QUESTION: Does thyroid autoimmunity (TAI) predict live birth rate in euthyroid women after one treatment cycle in IUI patients? SUMMARY ANSWER: TAI as such does not influence pregnancy outcome after IUI treatment. WHAT IS KNOWN ALREADY: The role of TAI on pregnancy outcome in the case of IVF/ICSI is largely debated in the literature. This is the first study to address this issue in the case of IUI. STUDY DESIGN, SIZE, DURATION: This was a retrospective cohort study...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28325735/rescue-preoperative-treatment-with-lugol-s-solution-in-uncontrolled-graves-disease
#2
Jan Calissendorff, Henrik Falhammar
BACKGROUND: Graves' disease is a common cause of hyperthyroidism. Three therapies have been used for decades: pharmacologic therapy, surgery and radioiodine. In case of adverse events, especially agranulocytosis or hepatotoxicity, pre-treatment with Lugol's solution containing iodine/potassium-iodide to induce euthyroidism before surgery could be advocated but has rarely been reported. METHOD: All patients hospitalised due to uncontrolled hyperthyroidism at the Karolinska University Hospital 2005-2015 and treated with Lugol's solution were included...
March 21, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28325623/impact-of-body-mass-index-on-survival-outcome-in-patients-with-differentiated-thyroid-cancer
#3
Yousif Al-Ammar, Bader Al-Mansour, Omar Al-Rashood, Mutahir A Tunio, Tahera Islam, Mushabbab Al-Asiri, Khalid Hussain Al-Qahtani
INTRODUCTION: Increased body mass index (BMI) is known to be associated with the high prevalence of Differentiated Thyroid Cancers (DTC); however data on its impact on survival outcome after thyroidectomy and adjuvant therapy is scanty. OBJECTIVE: We aimed to evaluate the impact of BMI on overall survival (OS) and disease free survival (DFS) rates in patients with DTC. METHODS: Between 2000 and 2011, 209 patients with DTC (papillary, follicular, hurthle cell) were treated with thyroidectomy followed by adjuvant radioactive iodine-131 (RAI) therapy and thyroid-stimulating hormone (TSH) suppression...
February 28, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28324000/trh-action-is-impaired-in-pituitaries-of-male-igsf1-deficient-mice
#4
Marc-Olivier Turgeon, Tanya L Silander, Denica Doycheva, Xiao-Hui Liao, Marc Rigden, Luisina Ongaro, Xiang Zhou, Sjoerd D Joustra, Jan M Wit, Mike G Wade, Heike Heuer, Samuel Refetoff, Daniel J Bernard
Loss-of-function mutations in the X-linked immunoglobulin superfamily, member 1 (IGSF1) gene cause central hypothyroidism. IGSF1 is a transmembrane glycoprotein of unknown function expressed in TSH-producing thyrotrope cells of the anterior pituitary gland. The protein is co-translationally cleaved, with only its C-terminal domain (CTD) being trafficked to the plasma membrane. Most intragenic IGSF1 mutations in humans map to the CTD. Here, we used CRISPR-Cas9 to introduce a loss-of-function mutation into the IGSF1-CTD in mice...
January 13, 2017: Endocrinology
https://www.readbyqxmd.com/read/28322461/iodinated-tg-in-thyroid-follicular-lumen-regulates-ttf-1-and-pax8-expression-via-tsh-tshr-signaling-pathway
#5
Huibin Huang, Yaxiong Shi, Bo Liang, Huiyao Cai, Qingyan Cai
Our previous study showed that highly iodinated thyroglobulin (TG) inhibited thyroid transcription factor-1 (TTF-1) and paired box gene 8 (PAX8) expression, but the potential mechanism remains unclear. In this study, we constructed a thyroid follicle model in vitro to mimic its natural physiological structure and explored how iodinated TG in the follicular lumen tuned TTF-1 and PAX8 expression. Our data showed that lowly iodinated TG enhanced PKA activity while upregulation of both TTF-1 and PAX8 expression; and that highly iodinated TG triggered PKC activity while suppression of TTF-1 and PAX8 expression...
March 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28295509/measuring-tsh-receptor-antibody-trab-to-influence-treatment-choices-in-graves-disease
#6
Asha Hesarghatta Shyamasunder, Prakash Abraham
TSH receptor antibody (TRAb) plays a key role in the pathogenesis of Graves' disease (GD) and its levels correlate with the clinical course. The 2(nd) and 3(rd) generation TRAb assays have >95% sensitivity and specificity for the diagnosis of GD, and have improved the utility of TRAb to predict relapse. TRAb levels decline with antithyroid drug (ATD) therapy and after thyroidectomy. Its level increases for a year following radioactive iodine (RAI) therapy, with a gradual fall thereafter. TRAb level >12 IU/L at diagnosis of GD is associated with 60% risk of relapse at 2 years and 84% at 4 years...
March 13, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28291505/the-high-prevalence-of-reversible-subclinical-hypothyroidism-with-elevated-serum-thyroglobulin-levels-in-chronic-kidney-disease-patients%C3%A2
#7
Toru Sanai, Ken Okamura, Shuichi Rikitake, Makoto Fukuda, Koji Onozawa, Mai Sanematsu, Tsuyoshi Takashima, Motoaki Miyazono, Yuji Ikeda
BACKGROUND: We examined the thyroid function of non-dialysis-dependent chronic kidney disease (CKD) patients in Japan. METHODS: Serum-free thyroxine, free triiodothyronine, thyroid-stimulating hormone (TSH), and thyroglobulin (Tg) levels were evaluated in 37 CKD patients. CKD was defined as sustained kidney damage for more than 3 months and was classified as CKD 1+2 (n = 11), 3+4 (n = 10), or 5 (n = 16), which were defined by glomerular filtration rates of ≥ 60, 15 - 59, or < 15 mL/min/1...
March 14, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28285430/the-sensitivity-and-specificity-of-thyroglobulin-concentration-using-repeated-measures-of-urinary-iodine%C3%A2-excretion
#8
Zheng F Ma, Bernard J Venn, Patrick J Manning, Claire M Cameron, Sheila A Skeaff
PURPOSE: Iodine deficiency affects 30% of populations worldwide. The amount of thyroglobulin (Tg) in blood increases in iodine deficiency and also in iodine excess. Tg is considered as a sensitive index of iodine status in groups of children and adults, but its usefulness for individuals is unknown. The aim of this study was to determine the diagnostic performance of Tg as an index of iodine status in individual adults. METHODS: Adults aged 18-40 years (n = 151) provided five spot urine samples for the measurement of urinary iodine concentration expressed as μg/L (UIC), μg/g of creatinine (I:Cre), and μg/day (estimated UIE); the mean of the five samples was used as the reference standard...
March 11, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28274949/management-of-endocrine-disease-subclinical-thyrotoxicosis-prevalence-causes-and-choice-of-therapy
#9
Allan Carle, Stine Linding Andersen, Kristien Boelaert, Peter Laurberg
Subclinical thyrotoxicosis is a condition affecting up to 10% of the population in some studies. We have reviewed literature and identified studies describing prevalences, causes and outcomes of this condition. Treatment should be considered in all subjects if this biochemical abnormality is persistent, especially in case of symptoms of thyrotoxicosis or in the presence of any complication. In particular, treatment should be offered in those subclinically thyrotoxic patients with a sustained serum TSH below 0...
March 8, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28260263/iodine-supplementation-for-women-during-the-preconception-pregnancy-and-postpartum-period
#10
REVIEW
Kimberly B Harding, Juan Pablo Peña-Rosas, Angela C Webster, Constance My Yap, Brian A Payne, Erika Ota, Luz Maria De-Regil
BACKGROUND: Iodine is an essential nutrient required for the biosynthesis of thyroid hormones, which are responsible for regulating growth, development and metabolism. Iodine requirements increase substantially during pregnancy and breastfeeding. If requirements are not met during these periods, the production of thyroid hormones may decrease and be inadequate for maternal, fetal and infant needs. The provision of iodine supplements may help meet the increased iodine needs during pregnancy and the postpartum period and prevent or correct iodine deficiency and its consequences...
March 5, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28258491/stimulated-thyroglobulin-values-above-5-6%C3%A2-ng-ml-before-radioactive-iodine-ablation-treatment-following-levothyroxine-withdrawal-is-associated-with-a-2-38-fold-risk-of-relapse-in-tg-ab-negative-subjects-with-differentiated-thyroid-cancer
#11
U Mousa, A S Yilmaz, A Nar
BACKGROUND: Serum thyroglobulin (Tg) is the key parameter used in the follow-up of subjects with differentiated thyroid cancer (DTC). Current guidelines advise its measurement to take place when Thyrotropin (TSH) levels are >30 µU/ml (stimulated Tg) and when TSH < 0.1 µU/ml (suppressed Tg). Although stimulated Tg levels <1 ng/ml have been shown to display excellent prognosis, relapses may occur despite low Tg levels. Recently, very low cut-off levels of stimulated Tg have been proposed for determining the recurrence risk in these subjects...
March 3, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28229359/thyroid-volume-and-serum-calcitonin-changes-during-pregnancy
#12
G Vannucchi, D Covelli, B Vigo, M Perrino, L Mondina, L Fugazzola
BACKGROUND: Pregnancy has a profound impact on thyroid homeostasis which results in change of thyroid function and thyroid volume (TV). Moreover, calcitonin (CT), and its gene-related peptide have been demonstrated to play an important role in the implantation process. PURPOSE: To evaluate changes in TV and serum CT levels during pregnancy. METHODS: One hundred and fifty-five pregnant women were consecutively enrolled at the first trimester of gestation and underwent clinical, biochemical and sonographic assessment at enrollment, at the second and third trimesters and at 6 months after delivery...
February 22, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28226001/recombinant-human-tsh-versus-thyroid-hormone-withdrawal-in-adjuvant-therapy-with-radioactive-iodine-of-patients-with-papillary-thyroid-carcinoma-and-clinically-apparent-lymph-node-metastases-not-limited-to-the-central-compartment-cn1b
#13
Pedro Weslley Rosario, Gabriela Franco Mourão, Maria Regina Calsolari
Objective: To compare the short- and long-term outcomes of adjuvant therapy with radioactive iodine (RAI) preceded by the administration of recombinant human TSH (rhTSH) versus thyroid hormone withdrawal (THW) in patients with papillary thyroid carcinoma and clinically apparent lymph node metastases not limited to the central neck compartment (cN1b). Subjects and methods: The sample consisted of 178 cN1b patients at intermediate risk who underwent total thyroidectomy with apparently complete tumor resection [including postoperative ultrasonography (US) without anomalies] and who received adjuvant therapy with RAI (30-100 mCi) preceded by the administration of rhTSH (n = 91) or THW (n = 87)...
February 13, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222107/transcriptional-response-to-131i-exposure-of-rat-thyroid-gland
#14
Nils Rudqvist, Johan Spetz, Emil Schüler, Toshima Z Parris, Britta Langen, Khalil Helou, Eva Forssell-Aronsson
Humans are exposed to 131I in medical diagnostics and treatment but also from nuclear accidents, and better knowledge of the molecular response in thyroid is needed. The aim of the study was to examine the transcriptional response in thyroid tissue 24 h after 131I administration in rats. The exposure levels were chosen to simulate both the clinical situation and the case of nuclear fallout. Thirty-six male rats were i.v. injected with 0-4700 kBq 131I, and killed at 24 h after injection (Dthyroid = 0.0058-3...
2017: PloS One
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
#15
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
#16
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/28171716/reference-intervals-of-thyroid-hormones-during-pregnancy-in-korea-an-iodine-replete-area
#17
Hye Jeong Kim, Yoon Young Cho, Sun Wook Kim, Tae Hyuk Kim, Hye Won Jang, Soo-Youn Lee, Suk-Joo Choi, Cheong-Rae Roh, Jong-Hwa Kim, Jae Hoon Chung, Soo-Young Oh
Background/Aims: Maternal thyroid dysfunction has been associated with adverse pregnancy outcomes. The purpose of our study was to establish trimester-specific reference intervals for thyroid hormones in pregnant women in Korea, where iodine intake is more than adequate and to examine pregnancy and perinatal outcomes in their offspring. Methods: Among 459 healthy pregnant women who were screened, we enrolled 417 subjects who had negative results for thyroid autoantibodies...
February 8, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28160243/association-of-iodine-and-iron-with-thyroid-function
#18
Juhua Luo, Michael Hendryx, Paul Dinh, Ka He
Iodine and iron are essential elements for healthy thyroid function. However, little is known about the association of iron and iodine with thyroid function in the general US population. We investigated iron and iodine status in relation to concentrations of thyroid hormones. We included 7672 participants aged 20 and older from three surveys (2007-2008, 2009-2010, and 2011-2012) of the National Health and Nutrition Examination Survey. Serum thyroid measures (including free and total T3 and T4, and TSH), serum iron concentration, and urinary iodine concentrations were measured...
February 3, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28159025/iodine-status-and-thyroid-nodules-in-females-a-comparison-of-cyprus-and-romania
#19
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/28153798/thyroid-hormone-biosynthesis-and-release
#20
Denise P Carvalho, Corinne Dupuy
Thyroid hormones (TH) 3,5,3',5'- tetraiodothyronine or thyroxine (T4) and 3,5,3'- triiodothyronine (T3) contain iodine atoms as part of their structure, and their synthesis occur in the unique structures called thyroid follicles. Iodide reaches thyroid cells through the bloodstream that supplies the basolateral plasma membrane of thyrocytes, where it is avidly taken up through the sodium/iodide symporter (NIS). Thyrocytes are also specialized in the secretion of the high molecular weight protein thyroglobulin (TG) in the follicular lumen...
January 31, 2017: Molecular and Cellular Endocrinology
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