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https://www.readbyqxmd.com/read/29335252/diagnostic-reevaluation-of-congenital-hypothyroidism-in-macedonia-predictors-for-transient-or-permanent-hypothyroidism
#1
Nikolina Zdraveska, Maja Zdravkovska, Violeta Anastasovska, Elena Sukarova-Angelovska, Mirjana Kocova
BACKGROUND: Diagnostic re-evaluation is important for all patients with congenital hypothyroidism (CH) for determining the etiology and identifying transient CH cases. Our study is a first thyroxine therapy withdrawal study conducted in Macedonian CH patients for a diagnostic re-evaluation. We aimed to evaluate the etiology of CH, the prevalence of transient CH and identify predictive factors for distinguishing between permanent (PCH) and transient CH (TCH). MATERIAL AND METHODS: Patients with CH aged > 3 years underwent a trial of treatment withdrawal for 4 weeks period...
January 15, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29331793/moderate-dose-simvastatin-therapy-potentiates-the-effect-of-vitamin-d-on-thyroid-autoimmunity-in-levothyroxine-treated-women-with-hashimoto-s-thyroiditis-and-vitamin-d-insufficiency
#2
Robert Krysiak, Witold Szkróbka, Bogusław Okopień
BACKGROUND: Vitamin D preparations reduce titers of thyroid antibodies in women with autoimmune thyroiditis. The same effect was induced by high-dose, but not moderate-dose-, statin therapy. No previous study has investigated the impact of concomitant treatment with a statin and vitamin D on thyroid autoimmunity. METHODS: The study included three matched groups of women with Hashimoto's thyroiditis and low vitamin D status. Groups B (n = 19) and C (n = 20) were treated with vitamin D (2000 IU daily)...
July 27, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29325045/mean-high-dose-l-thyroxine-treatment-is-efficient-and-safe-to-achieve-a-normal-iq-in-young-adult-patients-with-congenital-hypothyroidism
#3
Paulina Aleksander, Michaela Brückner-Spieler, Anne-Marie Stöhr, Erwin Lankes, Peter Kühnen, Dirk Schnabel, Andrea Ernert, Walter Stäblein, Maria E Craig, Oliver Blankenstein, Annette Grüters, Heiko Krude
Context: The optimal levothyroxine (LT4) dose required to treat congenital hypothyroidism (CH) remains unclear, with a debate if higher starting doses (>10µg/kg) are necessary and safe for normal Intelligence Quotient (IQ). Objective: To examine the psychomotor, metabolic and quality of life outcome in patients with CH treated with a mean high initial LT4 dose. Design, settings, participants: A cross- sectional cohort study of CH patients identified in the Berlin newborn screening programme from 1979-2003...
January 9, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29321381/association-between-genetic-polymorphism-and-levothyroxine-bioavailability-in-hypothyroid-patients
#4
Merve Arici, Ezgi Oztas, Fatih Yanar, Nihat Aksakal, Beyza Ozcinar, Gul Ozhan
Thyroid hormones play a vital role in the human body for growth and differentiation, regulation of energy metabolism, and physiological function. Hypothyroidism is a common endocrine disorder, which generally results from diminished normal circulating concentrations of serum thyroxine (fT4) and triiodothyronine (fT3). The primary choice in hypothyroidism treatment is oral administration of levothyroxine (L-T4), a synthetic T4 hormone, as approximately 100-125 μg/day. Generally, dose adjustment is made by trial and error approach...
January 11, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29319359/secondary-and-tertiary-preventions-of-thyroid-disease
#5
Fereidoun Azizi, Ladan Mehran, Farhad Hosseinpanah, Hossein Delshad, Atieh Amouzegar
INTRODUCTION: Secondary and tertiary preventions are concerned with the recognition of the disease process in a very early stage and delay in progression to complete disease and minimization of complications and the impact of illness. METHODS: All articles related to secondary and tertiary prevention of thyroid diseases were reviewed. Using related key words, articles published between 2001 and 2015 were evaluated, categorized, and analyzed. RESULTS: In secondary prevention, congenital hypothyroidism and subclinical hypo and hyperthyroidism are equally important...
January 10, 2018: Endocrine Research
https://www.readbyqxmd.com/read/29316865/effects-of-thyroid-stimulating-hormone-on-peripheral-thyroid-hormone-metabolism-and-serum-lipids
#6
Carolien M Beukhof, Elske Theresia Massolt, Theo J Visser, Tim Korevaar, Marco Medici, Wouter W de Herder, Jeanine Roeters van Lennep, Monique Mulder, Yolanda B de Rijke, Christoph Reiners, Frederik A Verburg, Robin Peeters
BACKGROUND: Subclinical hypothyroidism is associated with dyslipidemia and atherosclerosis. Whether part of these effects are mediated via direct effects of TSH on peripheral TH metabolism and/or concentrations of serum lipids is not clear. OBJECTIVE: To examine whether thyroid stimulating hormone (TSH) has direct effects on peripheral thyroid hormone (TH) metabolism and serum lipids. METHODS: We retrospectively analyzed 82 patients with differentiated thyroid cancer...
January 9, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29306930/management-of-thyrotoxicosis-in-children-and-adolescents-35-years-experience-in-304-patients
#7
Fereidoun Azizi, Atieh Amouzegar
BACKGROUND: Diffuse toxic goiter accounts for about 15% of all childhood thyroid diseases. There is great controversy over the management of Graves' disease in children and adolescents. This article reports our experience in 304 children and juvenile patients with Graves' disease. METHODS: Between 1981 and 2015, 304 patients aged 5-19 years with diffuse toxic goiter were studied, of whom 296 patients were treated with antithyroid drugs (ATD) for 18 months. Patients with persistent or relapsed hyperthyroidism who refused ablative therapy with surgery or radioiodine were managed with continuous methimazole (MMI) treatment...
January 8, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29289332/are-multisource-levothyroxine-sodium-tablets-marketed-in-egypt-interchangeable
#8
Basant A Abou-Taleb, Maha Bondok, Mohamed Ismail Nounou, Nawal Khalafallah, Saleh Khalil
A clinical study was initiated in response to patients' complaints, supported by the treating physicians, of suspected differences in efficacy among multisource levothyroxine sodium tablets marketed in Egypt. The study design was a multiple dose (100μg levothyroxine sodium tablet once daily for 6 months) and involved 50 primary hypothyroidism female patients (5 equal groups). Tablets administered included five tablet batches (two brands, three origin locations) purchased from local pharmacies in Alexandria...
December 27, 2017: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29246752/autoimmune-thyroid-disease-during-pregnancy
#9
REVIEW
Simone De Leo, Elizabeth N Pearce
Understanding of changes in thyroid function and the consequences of thyroid disease during pregnancy has rapidly grown in the past two decades, and revised American Thyroid Association guidelines on this topic were published in 2017. This Review explores the association between thyroid autoimmunity and complications during and after pregnancy. Thyroid autoimmunity refers to the presence of antibodies to thyroperoxidase or thyroglobulin, or thyroid-stimulating hormone receptor antibodies (TRAbs), or a combination of these, and is present in up to 18% of pregnant women...
December 12, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29240719/pericardial-effusion-as-a-presenting-symptom-of-hashimoto-thyroiditis-a-case-report
#10
Alberto Leonardi, Laura Penta, Marta Cofini, Lucia Lanciotti, Nicola Principi, Susanna Esposito
Background: Hashimoto thyroiditis (HT) is the most frequent cause of acquired hypothyroidism in paediatrics. HT is usually diagnosed in older children and adolescents, mainly in females and is rare in infants and toddlers with cardiac involvement, including pericardial effusion, that can be found in 10% to 30% of adult HT cases. In this paper, a child with HT and pericardial effusion as the most important sign of HT is described. Case presentation: A four-year-old male child suffering for a few months from recurrent abdominal pain sometimes associated with vomiting underwent an abdominal ultrasound scan outside the hospital...
December 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29234808/effect-of-levothyroxine-on-miscarriage-among-women-with-normal-thyroid-function-and-thyroid-autoimmunity-undergoing-in-vitro-fertilization-and-embryo-transfer-a-randomized-clinical-trial
#11
RANDOMIZED CONTROLLED TRIAL
Haining Wang, Hongwei Gao, Hongbin Chi, Lin Zeng, Wenhua Xiao, Yanrong Wang, Rong Li, Ping Liu, Chen Wang, Qing Tian, Zehong Zhou, Jin Yang, Ye Liu, Rui Wei, Ben Willem J Mol, Tianpei Hong, Jie Qiao
Importance: Presence of thyroid autoantibodies in women with normal thyroid function is associated with increased risk of miscarriage. Whether levothyroxine treatment improves pregnancy outcomes among women undergoing in vitro fertilization and embryo transfer (IVF-ET) is unknown. Objective: To determine the effect of levothyroxine on miscarriage among women undergoing IVF-ET who had normal thyroid function and tested positive for thyroid autoantibodies. Design, Setting, and Participants: An open-label, randomized clinical trial involving 600 women who tested positive for the antithyroperoxidase antibody and were being treated for infertility at Peking University Third Hospital from September 2012 to March 2017...
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29212434/stable-isotope-pharmacokinetic-studies-provide-insight-into-effects-of-age-sex-and-weight-on-levothyroxine-metabolism
#12
Islam Younis, Mariam A Ahmed, Kenneth D Burman, Offie P Soldin, Jacqueline Jonklaas
Background We wished to determine whether levothyroxine pharmacokinetics (PKs) are affected by age, weight, and sex. Methods A pharmacokinetic study was performed after administration of a tracer dose of carbon-13- labeled LT4 (13C-LT4). The study was conducted at an academic medical center. Adults of any age being treated with levothyroxine for hypothyroidism were enrolled in the study. A single dose of 13C- LT4 was administered. Eighteen serial plasma samples were collected. One sample was obtained before the 13C- LT4 dose and the majority of the remaining samples were collected over the 120-hour period post-dosing...
December 6, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29184537/probiotics-ingestion-does-not-directly-affect-thyroid-hormonal-parameters-in-hypothyroid-patients-on-levothyroxine-treatment
#13
Giorgia Spaggiari, Giulia Brigante, Sara De Vincentis, Umberto Cattini, Laura Roli, Maria Cristina De Santis, Enrica Baraldi, Simonetta Tagliavini, Manuela Varani, Tommaso Trenti, Vincenzo Rochira, Manuela Simoni, Daniele Santi
Purpose: The relationship between probiotics and levothyroxine (LT4) requirement has not yet been investigated. The aim of this study was to assess whether a mixture of highly charged Lactobacilli and Bifidobacteria (VSL#3®) is able to influence LT4 metabolism acting on the gut microbiota. Methods: A prospective, randomized, single-blind, controlled, investigator-started clinical trial was carried out. Patients with primary hypothyroidism were randomly assigned to the study (VSL#3® + LT4) and the control group (LT4)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29139142/safety-of-orally-administered-usp-compliant-levothyroxine-sodium-tablets-in-dogs
#14
J E Hare, C M K Morrow, J Caldwell, W E Lloyd
The safety of synthetic levothyroxine sodium tablets (Thyro-Tabs® Canine; LLOYD, Inc.) in dogs was evaluated in a randomized, sham-dose controlled, parallel-group study. Young, healthy, euthyroid Beagle dogs were randomized into four groups (four females and four males per group) and received single daily doses of 0×, 2× (0.044 mg/kg), 6× (0.132 mg/kg), or 10× (0.22 mg/kg) the labeled starting dose of 0.022 mg kg(-1)  day(-1) for 182 days. Every 2 weeks, physical examinations, electrocardiology examinations, and sample collections for thyroid panel, hematology, serum biochemistry, coagulation panel, and urinalysis were performed...
November 15, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29120652/-hypothyroidism-in-patients-with-heart-disease
#15
Jan Jiskra
Hypothyroidism is frequently found in patients with heart disease. It is a risk factor for atherosclerosis and ischemic heart disease and has a direct negative effect on both the left and right ventricular functions (hypothyroidism-induced cardiomyopathy). The confirmed manifest hypothyroidism is always a reason for replacement therapy with levothyroxine; regarding patients with heart disease, we always begin treatment with a small dose and increase it gradually. The treatment of subclinical hypothyroidism in patients with heart disease is disputable and its benefits probably depend on age...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29095280/primary-hypothyroidism-and-isolated-acth-deficiency-induced-by-nivolumab-therapy-case-report-and-review
#16
REVIEW
Mei Fang Zeng, Li Chen, Hong Ying Ye, Wei Gong, Li Nuo Zhou, Yi Ming Li, Xiao Long Zhao
RATIONALE: Nivolumab is a monoclonal IgG antibody blocking programmed death receptor-1 (PD1), leading to restoration of the natural T-cell-mediated immune response against the cancer cells. However, it also causes plenty of autoimmune-related adverse events, which often involves endocrine system. PATIENT CONCERNS: A 54-year-old male with renal clear cell carcinoma was treated with nivolumab intravenously. Routine monitoring showed elevated thyroid-stimulating hormone and low free thyroxine after the 6th administration of nivolumab...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29071237/the-effect-of-daily-versus-weekly-levothyroxine-replacement-on-thyroid-function-test-in-hypothyroid-patients-at-a-tertiary-care-centre-in-haryana
#17
Rajesh Rajput, Vaibhav Pathak
OBJECTIVE: We compare the effect of daily versus weekly levothyroxine (LT4) replacement on thyroid function test (TFT) in hypothyroid patients at a tertiary care centre in Haryana. MATERIALS AND METHODS: This was a randomised crossover study in which 100 hypothyroid patients on a stable LT4 dose were divided into 2 groups of 50 each. In group I, patients were given daily therapy for 6 weeks and then shifted to weekly therapy for the next 6 weeks. In group II, patients were given LT4 once a week for 6 weeks and then switched to daily therapy for the next 6 weeks...
September 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/29062583/the-end-diastolic-velocity-of-thyroid-arteries-is-strongly-correlated-with-the-peak-systolic-velocity-and-gland-volume-in-patients-with-autoimmune-thyroiditis
#18
Danilo Bianchini Höfling, Suemi Marui, Carlos Alberto Buchpiguel, Giovanni Guido Cerri, Maria Cristina Chammas
BACKGROUND: The end-diastolic velocity (EDV) of thyroid arteries reflects peripheral blood flow resistance. OBJECTIVE: The aim was to evaluate EDV correlations with other Doppler sonography parameters and with clinical and biochemical variables in a sample of patients with hypothyroidism caused by chronic autoimmune thyroiditis (CAT). METHODS: A sample of 48 CAT hypothyroid patients receiving treatment with stable doses of levothyroxine was selected...
2017: Journal of Thyroid Research
https://www.readbyqxmd.com/read/29026577/split-high-dose-oral-levothyroxine-treatment-as-a-successful-therapy-option-in-myxedema-coma
#19
Suranut Charoensri, Chutintorn Sriphrapradang, Hataikarn Nimitphong
High-dose intravenous thyroxine (T4) is the preferable treatment for myxedema coma. We describe the clinical course of a 69-year-old man who presented with myxedema coma and received oral levothyroxine (LT4) therapy (1 mg) in a split dose. This suggests split high-dose oral LT4 as a therapeutic option in myxedema coma.
October 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28989911/the-effect-of-levothyroxine-on-serum-levels-of-interleukin-10-and-interferon-gamma-in-rat-model-of-multiple-sclerosis
#20
Cobra Payghani, Fatemeh Khani, Aryan Rafiee Zadeh, Parham Reisi, Hojjatallah Alaei, Bahman Rashidi
BACKGROUND: There is an increase in inflammatory and a reduction in anti-inflammatory cytokines in multiple sclerosis (MS). Considering the role of thyroid hormones in the development and regulation of both neural and immune systems, the aim of this study was to evaluate the effects of levothyroxine on serum concentrations of interleukin-10 (IL-10) and interferon gamma (IFN-γ) in animal models of MS. MATERIALS AND METHODS: To induce demyelination in male Wistar rats, lysolecithin was injected into the optic chiasm...
2017: Advanced Biomedical Research
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