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Hypothyroidism AND Iodine

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https://www.readbyqxmd.com/read/27901180/ultrasonographic-assessment-of-thyroid-volume-in-oldest-old-individuals
#1
Glaucia Cruzes Duarte, Lara Miguel Quirino Araujo, Felix Magalhães, Clineu Mello Almada, Maysa Seabra Cendoroglo
Objective: The aim of this study was to describe the relationship between thyroid volume and age, gender, anthropometric characteristics, and echogenicity in oldest-old subjects in an iodine-sufficient area. Subjects and methods: The study included 81 independent elderly individuals aged ≥ 80 years (65 [80.2%] women). We determined these individuals' anthropometric characteristics, body mass index (BMI), and lean body mass, as well as thyroid volume and echogenicity by ultrasonography...
November 24, 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27867886/genotype-phenotype-correlations-of-dyshormonogenetic-goiter-in-children-and-adolescents-from-south-india
#2
Bangaraiah Gari Ramesh, Panchangam Ramakanth Bhargav, Bangaraiah Gari Rajesh, Nangedda Vimala Devi, Rajagopalan Vijayaraghavan, Bhongir Aparna Varma
BACKGROUND: Dyshormonogenetic goiter is one of the most common causes of hypothyroidism in children and adolescents in iodine nonendemic areas. The exact genotype-phenotypic correlations (GPCs) and risk categorization of hypothyroid phenotypes of dyshormonogenetic mutations are largely speculative. The genetic studies in pediatric dyshormonogenesis are very sparse from Indian sub-continent. In this context, we analyzed the implications of TPO, NIS, and DUOX2 gene mutations in hypothyroid children with dyshormonogenetic hypothyroidism (DH) from South India...
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27856930/effects-of-thyroid-hormone-withdrawal-on-metabolic-and-cardiovascular-parameters-during-radioactive-iodine-therapy-in-differentiated-thyroid-cancer
#3
Jee Hyun An, Kee-Ho Song, Dong-Lim Kim, Suk Kyeong Kim
OBJECTIVE: To investigate the cardiometabolic effects of a severe hypothyroid state induced by withdrawal of thyroid hormone replacement before radioactive iodine therapy. METHODS: Patients with thyroid cancer who were scheduled to receive radioactive iodine ablation were enrolled. Cardiometabolic parameters were measured using blood samples taken immediately before levothyroxine withdrawal, 4 weeks following withdrawal (on radiotherapy day), and 4 weeks following reinstitution of levothyroxine...
November 17, 2016: Journal of International Medical Research
https://www.readbyqxmd.com/read/27824324/no-adverse-effects-after-radioiodine-treatment-at-3-weeks-of-pregnancy
#4
Matea Radacic-Aumiler, Iva Kraljickovic, Viktorija Edeljic-Turk, Ksenija Makar-Ausperger, Robert Likic, Iveta Simic
Radioactive iodine is used for the treatment of hyperthyroidism. Because it accumulates in the fetal thyroid, its administration during pregnancy may cause severe and potentially irreversible hypothyroidism in neonates, with consequent mental retardation, and it is contraindicated during the whole pregnancy. We present a case of a pregnant woman inadvertently treated with 1 mCi (37 MBq) of I in the earliest period of pregnancy and subsequently gave birth to a male infant without signs or symptoms of hypothyroidism or any other damage...
December 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27781488/current-challenges-in-the-pharmacological-management-of-thyroid-dysfunction-in-pregnancy
#5
I Khan, O E Okosieme, J H Lazarus
Thyroid dysfunction is common in pregnancy and has adverse fetal and maternal health consequences. A number of challenges in the management of gestational thyroid dysfunction remain unresolved including uncertainties in optimal thresholds for correction of hypothyroidism and strategies for pharmacological management of hyperthyroidism. Areas covered: We addressed key challenges and areas of uncertainty in the management of thyroid dysfunction in pregnancy. Expert commentary: Gestational thyroid hormone reference intervals vary according to population ethnicity, iodine nutrition, and assay method and each population should derive trimester specific reference intervals for use in pregnancy...
October 26, 2016: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/27750020/variable-cold-induced-brown-adipose-tissue-response-to-thyroid-hormone-status
#6
Alina Gavrila, Per-Olof Hasselgren, Allison Glasgow, Ashley N Doyle, Alice J Lee, Peter Fox, Shiva Gautam, James V Hennessey, Gerald M Kolodny, Aaron M Cypess
BACKGROUND: In addition to its role in adaptive thermogenesis, brown adipose tissue (BAT) may protect from weight gain, insulin resistance/diabetes, and metabolic syndrome. Prior studies have shown contradictory results regarding the influence of thyroid hormone (TH) levels on BAT volume and activity. The aim of this pilot study was to gain further insights regarding the effect of TH treatment on BAT function in adult humans by evaluating the BAT mass and activity prospectively in six patients, first in the hypothyroid and then in the thyrotoxic phase...
November 29, 2016: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/27741550/the-impact-and-management-of-subclinical-hypothyroidism-for-improving-reproductive-outcomes-such-as-fertility-and-miscarriage
#7
Aimee Seungdamrong
Subclinical hypothyroidism has been found to be associated with adverse reproductive outcomes, such as infertility, miscarriage, preterm birth, and complications of pregnancy. Multiple studies have investigated the relationships between thyroid function, thyroid antibodies, fertility, and pregnancy. Thyroid autoimmunity is the most common cause of hypothyroidism in iodine-sufficient locations. Thyroid antibodies have been associated with adverse reproductive outcomes such as miscarriage and infertility. Debate exists regarding the method of identification of thyroid dysfunction in pregnancy, which can be conducted by targeted screening or by universal screening...
November 2016: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/27737479/thyroid-peroxidase-antibodies-in-non-autoimmune-hyperthyroidism-treated-with-radioactive-iodine
#8
M H Listewnik, M J Listewnik, T Miazgowski, K Jaskólska, K Jasiakiewicz, B Birkenfeld
Introduction: Earlier studies suggest increased serum levels of thyroid peroxidase antibodies (TPOAb) in some cases with non-autoimmune hyperthyroidism. The aim of the study was to assess the incidence of hypothyroidism in patients with nodular toxic goitre and toxic adenoma at 12 months after radioactive iodine therapy in the relation to TPOAb levels. Patients & Measurements: The study comprised 100 patients (83 females; 17 males) treated with radioactive iodine therapy. Serum concentrations of thyrotropin, free thyroxin, TPOAb, and anti-TSH receptor antibodies were assessed at baseline and 12 months after radioactive iodine therapy...
October 2016: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/27734701/-solution-of-iodine-deficiency-in-the-czech-republic-history-and-current-situation20-years-of-work-of-prof-v%C3%A3-clav-zamrazil-for-commission-for-the-solution-of-iodine-deficiency
#9
Lydie Ryšavá, Jaroslav Kříž
Diseases caused by Iodine deficit are preventable. Inter resort Commission for the solution of Iodine deficiency (MKJD) at State Institute for Health (SZU) in Prague has been taking effective measures which satisfied requirements of the Principles for sustainable elimination of diseases caused by Iodine deficiency ICCD WHO: 96 % of households is using iodized salt, average Iodine content is 25 mg/1 kg of salt. Data from studies show ioduria less 100 mcg/l in only 9 per cent of seniors, 5 % of children 7-10 years, 3 % of children 10-12 years...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27730067/antithyroid-drugs-in-graves-disease-are-we-stretching-it-too-far
#10
Muthukrishnan Jayaraman, Anil Kumar Pawah, C S Narayanan
INTRODUCTION: Early and durable achievement of euthyroid or hypothyroid status with low likelihood of relapse is the key to effective treatment of Graves' disease (GD). Although antithyroid drugs (ATDs) are commonly used first-line agents, likelihood of remission remains highest with radioactive iodine (RAI) therapy and surgery. Data regarding efficacy and economical superiority of RAI therapy over ATDs are lacking from India. This study was designed to study the response to long-term (>12 months) use of ATDs in GD with respect to attainment of remission and to compare the cost of treatment with ATDs versus RAI therapy beyond 12 months...
September 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27666870/effects-of-thyroid-hormone-withdrawal-on-natriuretic-peptides-during-radioactive-iodine-therapy-in-female-patients-with-differentiated-thyroid-cancer
#11
Adina Elena Stanciu, Anca Elena Hurduc, Marcel Marian Stanciu
OBJECTIVE: We aimed to investigate the effects of thyroid hormone withdrawal on N-terminal prohormone forms of atrial natriuretic peptide (NT-proANP) and brain natriuretic peptide (NT-proBNP) during radioiodine therapy in female patients with differentiated thyroid cancer (DTC). METHODS: Serum concentrations of thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), NT-proANP and NT-proBNP were measured in 51 female patients with DTC (48.7 ± 4.2 years) at three time-points: day of radioiodine therapy (t1 - under acute hypothyroidism), 5 days after radioiodine (t2 - under acute hypothyroidism) and 3 months after radioiodine (t3 - under TSH suppression)...
December 2016: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27634939/cost-utility-analysis-comparing-radioactive-iodine-anti-thyroid-drugs-and-total-thyroidectomy-for-primary-treatment-of-graves-disease
#12
Peter J Donovan, Donald S A McLeod, Richard Little, Louisa Gordon
OBJECTIVE: Little data is in existence about the most cost-effective primary treatment for Graves' disease. We performed a cost-utility analysis comparing radioactive iodine (RAI), anti-thyroid drugs (ATD) and total thyroidectomy (TT) as first-line therapy for Graves' disease in England and Australia. METHODS: We used a Markov model to compare lifetime costs and benefits (quality-adjusted life-years (QALYs)). The model included efficacy, rates of relapse and major complications associated with each treatment, and alternative second-line therapies...
December 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27632981/interaction-of-interferon-alpha-therapy-with-thyroid-function-tests-in-the-management-of-hepatitis-c-a-case-report
#13
Gurmit Gill, Hammad Bajwa, Peter Strouhal, Harit N Buch
BACKGROUND: Interferon alpha is a widely used therapeutic agent in the treatment of hepatitis C virus infection. Clinical thyroid disease is seen in nearly 15 % of patients receiving interferon alpha for hepatitis C virus infection. The mechanism of thyroid dysfunction with interferon alpha is either autoimmune or inflammatory. We report a case of young woman who developed biphasic thyroid dysfunction posing a diagnostic challenge, while receiving interferon alpha treatment for hepatitis C virus infection...
2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27598917/-endocrine-problems-during-pregnancy
#14
Klaus Mann, Gerhard Hintze
Endocrine disorders may have an important influence on fertility, the course of a pregnancy and fetal development. For example, fertility is decreased and the risk of miscarriage is increased in women with autoimmune disorders, such as Addison's disease or autoimmune thyroiditis. Treatment of endocrine diseases in many cases has to be adapted during the course of a pregnancy. In patients with Addison's disease the dosage of hydrocortisone necessarily has to be increased. This is also valid for the time of delivery...
September 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27592043/thyroidal-response-following-iodine-excess-for-cardiac-catheterisation-and-intervention-in-early-infancy
#15
Markus-Johann Dechant, Natascha van der Werf-Grohmann, Elena Neumann, Ute Spiekerkoetter, Brigitte Stiller, Jochen Grohmann
BACKGROUND: Cardiac catheterisation requiring the use of contrast medium is increasingly utilised in infants with congenital heart disease. Thyroid function in infants is potentially vulnerable to relatively high doses of iodine. METHODS: Single-centre prospective study of 21 patients (10 neonates, 11 infants) exposed to iodine during cardiac catheterisation. Median age was 30days (1-180), median body weight 3.3kg (1.6-7.0). Serum-levels of thyroid-stimulating hormone (TSH), free triiodothyronine (fT3) and free thyroxine (fT4) were measured at baseline before, and at three different times points after intervention...
November 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27564693/thyroid-dysfunction-in-preterm-neonates-exposed-to-iodine
#16
Fiona L R Williams, Jennifer Watson, Chris Day, Aung Soe, Sateesh K Somisetty, Lesley Jackson, Elena Velten, Anita Boelen
BACKGROUND: Infants <32 weeks' gestation should not be exposed to topical iodine and its avoidance is recommended during pregnancy and breast feeding. Exposure to contrast media and topical iodine is frequently used in many preterm neonates. AIM: To determine whether thyrotropin levels in preterm infants are affected by exposure to intrapartum/neonatal topical iodine and/or the use of iodinated contrast media. DESIGN: Infants <32 weeks' gestation were recruited...
August 26, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27558389/auto-immune-thyroid-dysfunction-induced-by-tyrosine-kinase-inhibitors-in-a-patient-with-recurrent-chordoma
#17
Juliette Eroukhmanoff, Frederic Castinetti, Nicolas Penel, Sebastien Salas
BACKGROUND: While hypothyroidism has frequently been reported with the use of TKIs, the thyroid-stimulating hormone (TSH) suppressing effect of TKIs is rare, except for thyroiditis. We describe a case with progressive recurrent chordoma who initially became hyperthyroid in a context of autoimmunity under sorafenib treatment and later under imatinib treatment. CASE PRESENTATION: A 57-year-old man with lumbar chordoma began daily treatment of 800 mg sorafenib. He did not have any other medication or recent iodinated-contrast exposure and his family history was negative for thyroid and autoimmune disease...
August 24, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27551578/topical-iodine-induced-thyrotoxicosis-in-a-newborn-with-a-giant-omphalocele
#18
Sonali Malhotra, Shilpa Kumta, Alok Bhutada, Elka Jacobson-Dickman, Roja Motaghedi
INTRODUCTION: Neonatal thyrotoxicosis is a life-threatening condition with potentially irreversible neurologic sequelae. Most cases are seen in neonates born to mothers with Graves' disease. Topical iodine-induced hypothyroidism has been reported in neonates, but iodine-induced neonatal hyperthyroidism has not been described; albeit a familiar entity in adults. CASE DESCRIPTION: Herein we present a unique case of a neonate, born with a giant omphalocele, who was treated with topical povidone-iodine dressings to promote escharification, in preparation for delayed surgical closure...
April 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/27546873/prevalence-of-hyponatremia-in-hypothyroid-patients-during-radioactive-%C3%A2-%C3%A2-%C3%A2-i-ablation-for-differentiated-thyroid-cancer-single-institution-experience
#19
Juan Carlo P Dayrit, Elaine C Cunanan, Sjoberg A Kho
BACKGROUND: Hyponatremia developing in hypothyroid patients has been encountered in clinical practice; however, its prevalence has not been well established. METHODS: Thirty patients diagnosed with differentiated thyroid cancer, rendered hypothyroid after surgery and levothyroxine withdrawal, and who are for radioactive iodine (RAI) ablation were included. Serum sodium concentrations were measured twice, at the time of admission for RAI ablation, and before discharge after increased oral fluid intake...
September 2016: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27534632/consequences-of-iodine-deficiency-and-excess-in-pregnant-women-an-overview-of-current-knowns-and-unknowns
#20
REVIEW
Elizabeth N Pearce, John H Lazarus, Rodrigo Moreno-Reyes, Michael B Zimmermann
Severe iodine deficiency during development results in maternal and fetal hypothyroidism and associated serious adverse health effects, including cretinism and growth retardation. Universal salt iodization is the first-line strategy for the elimination of severe iodine deficiency. Iodine supplementation is recommended for vulnerable groups in severely iodine-deficient regions where salt iodization is infeasible or insufficient. A recent clinical trial has informed best practices for iodine supplementation of severely iodine-deficient lactating mothers...
September 2016: American Journal of Clinical Nutrition
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