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l thyroxine

Tatjana Barišić, Vjekoslav Mandić, Anja Vasilj, Dejan Tiric
OBJECTIVE: To determine the frequency of subclinical hypothyroidism in women with pathological pregnancies and the association between elevated thyroid-stimulating hormone (TSH) and pregnancy outcome. SUBJECTS AND METHODS: A cross-sectional prospective study investigated value of TSH and free thyroxine (FT4) in: 1. pregnant women with hypertension (HTA) (N = 62) or preeclampsia (PE) (N = 50), 2.women with gestational diabetes mellitus (GDM) (N = 92) in pregnancy and 3...
March 14, 2018: Journal of Maternal-fetal & Neonatal Medicine
Bharti Kalra, Meenu Choudhary, Meenakshi Thakral, Sanjay Kalra
Background: Hypothyroidism is common in pregnancy. No study has determined the prevalence of hypothyroidism in term pregnancies in India. Aim: This study aims to determine the prevalence and correlates of hypothyroidism in women who delivered at a center in Karnal, Haryana, North India. Results: Indoor records of all women who had delivered at this centre from April 2016 to March 2017 were reviewed. The prevalence of hypothyroidism was 12...
January 2018: Indian Journal of Endocrinology and Metabolism
Subramanian Kannan, Shriraam Mahadevan, Alben Sigamani
Background: Small cross-sectional studies are published on the trimester-specific normal ranges of thyrotropin and thyroxine levels in Indian women from various parts of the country. Objective: We sought to review the published literature on thyroid function tests in normal pregnant Indian women to see if the pooled data from various studies can define normative data and hypothyroidism in pregnancy. Methods: We retrieved 56 studies from online databases with detailed search using multiple search terms...
January 2018: Indian Journal of Endocrinology and Metabolism
Chiara Tuccilli, Enke Baldini, Elia Truppa, Bruno D'Auria, Domenico De Quattro, Giovanni Cacciola, Tommaso Aceti, Giovanni Cirillo, Antonio Faiola, Patrizia Indigeno, Lorella D'Aliesio, Fiorella Gazzellone, Marco Bononi, Eleonora D'Armiento, Giovanni Carbotta, Daniele Pironi, Antonio Catania, Salvatore Sorrenti, Salvatore Ulisse
OBJECTIVE: The World Health Organization, the United Nations Children's Fund, and the International Council for the Control of Iodine Deficiency Disorders recommend a median urinary iodine concentration (UIC) in pregnant women between 150 µg/L and 249 µg/L. In the present study, we evaluated whether in the urban area of Cassino (central Italy), after a national salt iodination program (30 mg/kg) was introduced in 2005, the increased demand of iodine during pregnancy was satisfied...
November 27, 2017: Nutrition
Ronit Koren, Yifat Wiener, Karen Or, Carlos A Benbassat, Shlomit Koren
OBJECTIVES: To study the current practices in the management of subclinical hypothyroidism (SCH) and thyroid nodules during pregnancy of obstetricians/gynecologists (OB/GYNs) and endocrinologists in Israel. METHODS: An electronic questionnaire was sent by email to all members of the Israeli Endocrine Society and the Israel Society of Obstetrics and Gynecology. Questionnaires included demographic data and clinical scenarios with questions regarding the screening and management of pregnant women with SCH, hypothyroxinemia, and a palpable thyroid nodule...
March 2018: Israel Medical Association Journal: IMAJ
Daniela Metro, Valeria Cernaro, Mattia Papa, Salvatore Benvenga
Some natural compounds decrease serum levels of thyroid autoantibodies, but results are inconsistent and thyroid function has been evaluated infrequently; moreover, the effects of Aloe on thyroid autoimmunity and function have been examined in very few studies. This study stems from the observation of one co-author, who has Hashimoto's thyroiditis (HT)-related subclinical hypothyroidism (SCH). Upon checking her biochemical thyroid panel when taking daily Aloe barbardensis Miller juice (ABMJ) for thyroid-unrelated reasons, she noticed a decrease in serum thyroperoxidase autoantibodies (TPOAb) and thyrotropin (TSH) and an increase in serum free thyroxine (FT4)...
March 2018: Journal of Clinical & Translational Endocrinology
Vishnu Vardhan Garla, Sohail Abdul Salim, Licy L Yanes-Cardozo
A 27-year-old male patient who presented to the emergency room with complaints of sweating, palpitations, heat intolerance, insomnia and weight loss for the last 3 months. His medical history was significant for hypertension. On examination, he was tachycardic, hypertensive, had tremors of the upper extremities and a smooth goitre with a thyroid bruit. Laboratory assessment revealed a suppressed thyroid-stimulating hormone, high free thyroxine and positive thyroid receptor antibodies. Complete blood count showed pancytopenia...
March 9, 2018: BMJ Case Reports
Militiadis A Makrygiannakis, Eleftherios G Kaklamanos, Athanasios E Athanasiou
Background: As the taking of any medication may theoretically affect the complex pathways responsible for periodontal tissue homeostasis and the events leading to orthodontic tooth movement, it is considered important for the orthodontist to be able to identify prospective patients' history and patterns of pharmaceutical consumption. Objective: To systematically investigate and appraise the quality of the available evidence regarding the effect of commonly prescribed medications on the rate of orthodontic tooth movement...
March 6, 2018: European Journal of Orthodontics
Mehdi Rajabi, Murat Yalcin, Shaker A Mousa
In the angiogenesis process, integrins, which are members of a family of cell surface transmembrane receptors, play a critical role particularly in blood vessel formation and the local release of vascular growth factors. Thyroid hormones such as l-thyroxine (T4 ) and 3,5,3'-triiodo-l-thyronine (T3 ) promote angiogenesis and tumor cell proliferation via integrin αvβ3 receptor. At or near an arginine-glycine-aspartate (RGD) recognition site on the binding pocket of integrin αv β3 , tetraiodothyroacetic acid (tetrac, a deaminated derivative of T4 ) is a thyrointegrin receptor antagonist and blocks the actions of T3 and T4 as well as different growth factors-mediated angiogenesis...
February 26, 2018: Bioorganic & Medicinal Chemistry Letters
Melanie H Jacobson, Penelope P Howards, Lyndsey A Darrow, Juliana W Meadows, James S Kesner, Jessica B Spencer, Metrecia L Terrell, Michele Marcus
BACKGROUND: Previous studies have reported that hyperthyroid and hypothyroid women experience menstrual irregularities more often compared with euthyroid women, but reasons for this are not well-understood and studies on thyroid hormones among euthyroid women are lacking. In a prospective cohort study of euthyroid women, this study characterised the relationship between thyroid hormone concentrations and prospectively collected menstrual function outcomes. METHODS: Between 2004-2014, 86 euthyroid premenopausal women not lactating or taking hormonal medications participated in a study measuring menstrual function...
March 8, 2018: Paediatric and Perinatal Epidemiology
Florence Gunawan, Elizabeth George, Adam Roberts
Immune checkpoint inhibitors are the mainstay of treatment for advanced melanoma, and their use is being increasingly implicated in the development of autoimmune endocrinopathies. We present a case of a 52-year-old man with metastatic melanoma on combination nivolumab and ipilumimab therapy who developed concurrent hypophysitis, type 1 diabetes mellitus (T1DM) and diabetes insipidus. He presented prior to third cycle of combination treatment with a headache, myalgias and fatigue. Biochemistry and MRI pituitary confirmed anterior pituitary dysfunction with a TSH: 0...
2018: Endocrinology, Diabetes & Metabolism Case Reports
Ahmed A Madar, Helle M Meltzer, Espen Heen, Haakon E Meyer
We lack knowledge about iodine status in the Norwegian population in general, and particularly among immigrants. We aimed to estimate the iodine status and potentially associated factors in a Somali population in Norway. Somali men and women aged 20-73, who were living in one district in Oslo, were recruited between December 2015 and October 2016. Twenty-four-hour urine was collected from 169 participants (91 females and 78 males). Iodine was analysed using the Sandell-Kolthoff reaction on microplates and colorimetric measurement...
March 5, 2018: Nutrients
Chijioke Ikomi, Conrad R Cole, Emily Vale, Marjorie Golekoh, Jane C Khoury, Nana-Hawa Yayah Jones
BACKGROUND AND OBJECTIVES: Iodine is an essential trace element for maintenance of normal thyroid function. Normal thyroid function is a prerequisite for neurocognitive development and growth in children. In the United States, iodine is not routinely added as a trace element in parenteral nutrition (PN). Our objective was to determine the prevalence of iodine deficiency and hypothyroidism in children on chronic PN. METHODS: This was a cross-sectional study of children <17 years of age and using PN for >6 months at a tertiary children's hospital...
March 1, 2018: Pediatrics
Y S Cui, Q Zhong, W F Li, Z H Liu, Y Wang, C C Hou
Objective: To investigate the effects of fluoride exposure on the thyroid hormone level and intelligence in rats and to investigate the biomarkers of intellectual impairment induced by high fluoride exposure. Methods: A total of 24 clean healthy Sprague-Dawley rats were randomly divided into control group (tap water containing 0.344 mg/L fluoride) and low-, medium-, and high-fluoride exposure groups (tap waters containing 10, 50, and 100 mg/L sodium fluoride, respectively). One male rat was cohabited with two female rats in the same group...
December 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
Kriti Joshi, Margaret Zacharin
BACKGROUND: Neonatal hyperthyroidism is rare, seen in infants of mothers with Graves' disease (GD), with transplacental transfer of thyroid-stimulating hormone receptor (TSHR) antibodies (TRAbs). We describe a neonate with severe hyperthyroidism due to TRAbs, born to a mother with autoimmune hypothyroidism. CASE PRESENTATION: A baby boy born preterm at 35 weeks had irritability, tachycardia and proptosis after birth. The mother had autoimmune hypothyroidism, from age 10, with thyroxine replacement and normal thyroid function throughout her pregnancy...
March 1, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
Alberto Bocchetta, Luca Ambrosiani, Gioia Baggiani, Claudia Pisanu, Caterina Chillotti, Raffaella Ardau, Fernanda Velluzzi, Doloretta Piras, Andrea Loviselli, Antonello Pani
BACKGROUND: Concerns about the adverse effects of long-term treatment with lithium include reduced renal function. In the present study, we examined comorbidities which may be associated with chronic kidney disease in a cohort of patients treated with lithium for up to 41 years. METHODS: We studied 394 patients who were treated with lithium for ≥ 5 years. The potential role of comorbidities (diabetes, concurrent antihypertensive medication, treatment with L-thyroxine, and presence of antithyroid peroxidase/microsomes, anti-thyroglobulin, and/or anti-thyrotropin-receptor antibodies) was analysed...
March 1, 2018: International Journal of Bipolar Disorders
Tinh-Hai Collet, Gerasimos P Sykiotis, Carole E Aubert, Christine Baumgartner, Manuel R Blum, Martin Feller, Christoph Stettler, Nicolas Rodondi
Subclinical hypothyroidism, defined as an elevated level of thyrotropin hormone (TSH) and normal thyroxin, is more frequent in women and above 65 years old. This condition is associated with an increased cardiovascular risk, in particular with TSH > 10,0 mIU/L. Although overt hypothyroidism is rare (prevalence of 0,3 %), levothyroxine has become the most prescribed medication in the US, while its indications are still debated. The European-funded TRUST trial showed no improvement in Hypothyroid Symptoms and Tiredness scores among patients ≥ 65 years with subclinical hypothyroidism treated with levothyroxine, and no improvement in blood pressure, weight, muscle strength and cognition...
February 28, 2018: Revue Médicale Suisse
Emma V Preston, Thomas F Webster, Emily Oken, Birgit Claus Henn, Michael D McClean, Sheryl L Rifas-Shiman, Elizabeth N Pearce, Lewis E Braverman, Antonia M Calafat, Xiaoyun Ye, Sharon K Sagiv
BACKGROUND: Prenatal exposure to some per- and polyfluoroalkyl substances (PFASs) may disrupt maternal and neonatal thyroid function, which is critical for normal growth and neurodevelopment. OBJECTIVES: We examined associations of PFAS exposure during early pregnancy with maternal and neonatal thyroid hormone levels. METHODS: We studied 732 mothers and 480 neonates in Project Viva, a longitudinal prebirth cohort in Boston, Massachusetts. We quantified six PFASs, including perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), and maternal thyroid hormones [thyroxine (T4 ), Free T4 Index (FT4 I), thyroid stimulating hormone (TSH)] in plasma samples collected at a median 9...
February 27, 2018: Environmental Health Perspectives
Travis F D Souza, Steven G Hoshal, Ridwaan Albeiruti, Mario P Zambito, Giuseppe M Zambito, Faizan M Khan, Bennett P Samuel, Teri L Crumb, Surender Rajasekaran, Joseph J Vettukattil
BACKGROUND: To develop an understanding of current practices in the management of transient secondary hypothyroidism in pediatric postoperative cardiopulmonary bypass (CPB) patients. METHODS: Electronic survey comprising a 10-item questionnaire was sent to sixty-four high volume pediatric heart centers in the United States and United Kingdom. Survey participants included cardiologist, intensivists, cardiothoracic surgeons, and advanced practice providers. A retrospective chart review was also performed at a large regional referral center in the Midwest on subjects 0-18 years old who underwent CPB from 2005-2015...
February 26, 2018: Current Cardiology Reviews
L L Yu, T Gao, M M Zhao, P A Lv, L Zhang, J L Li, Y Jiang, F Gao, G H Zhou
In ovo feeding (IOF) of l-arginine (Arg) can affect growth performance of broilers, but the response of IOF of Arg on breast muscle growth is unclear, and the mechanism involved in protein deposition remains unknown. Hense, this experiment was conducted to evaluate the effects of IOF of Arg on breast muscle growth and protein-deposited signalling in post-hatch broilers. A total of 720 fertile eggs were collected from 34-week-old Arbor Acres breeder hens and distributed to three treatments: (1) non-injected control group; (2) 7...
February 26, 2018: Animal: An International Journal of Animal Bioscience
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