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Jae Hoon Moon, Kyoung Min Kim, Tae Jung Oh, Sung Hee Choi, Soo Lim, Young Joo Park, Do Joon Park, Hak Chul Jang
DESIGN, SETTING, AND PARTICIPANTS: We conducted a retrospective cohort study including 273 postmenopausal women with DTC who had received TSH-suppressive therapy. Bone mineral density (BMD) and TBS at the lumbar spine were analyzed using dual-energy X-ray absorptiometry (DXA). Major Outcome Measure: The association between the parameters of TSH-suppressive therapy and bone parameters was investigated. RESULTS: Study subjects showed upper-normal free thyroxine (free T4) levels and suppressed TSH at DXA evaluation...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
Kristen Lyall, Meredith Anderson, Martin Kharrazi, Gayle C Windham
Thyroid hormones (TH) are critical in early neurodevelopment, but few studies have examined whether neonatal TH levels influence risk of autism spectrum disorder (ASD). This study linked California neonatal screening data with live birth and Department of Developmental Services records to examine newborn TH levels in relation to ASD. Thyroxine (T4) and thyroid-stimulating hormone (TSH) levels were measured in newborn bloodspots as part of routine screening, in 1996 and 2002, respectively. Mean levels of T4 and TSH were compared between ASD cases and non-cases...
October 14, 2016: Autism Research: Official Journal of the International Society for Autism Research
N Mansournia, S Riyahi, S Tofangchiha, M A Mansournia, M Riahi, Z Heidari, E Hazrati
PURPOSE: Association of subclinical hypothyroidism with type 2 diabetes and its complications has been previously documented. These reports were, however, inconclusive and mainly gathered from Chinese and East Asian populations. In this study, we aimed to determine the prevalence of subclinical hypothyroidism and its relationship with diabetic nephropathy in Iranian individuals with type 2 diabetes, drawn from a white Middle Eastern population with an increasing prevalence of diabetes...
October 13, 2016: Journal of Endocrinological Investigation
Kerry J Welsh, Steven J Soldin
Hypothyroidism is a very common disorder worldwide, for which the usual treatment is monotherapy with levothyroxine (L-T4). However, a number of patients treated with L-T4 continue to report symptoms of hypothyroidism despite seemingly normal levels of thyroid-stimulating hormone (TSH), free-T3 (FT3) and free-T4 (FT4) measured by immunoassay. This review summarizes the limitations of the immunoassays commonly used to measure thyroid hormone levels and emphasizes the advantages of the role of liquid chromatography-tandem mass spectrometry (LC-MS/MS)...
December 2016: European Journal of Endocrinology
Sara Stinca, Maria Andersson, Sandra Weibel, Isabelle Aeberli-Herter, Ralph Fingerhut, Sueppong Gowachirapant, Sonja Y Hess, Nidhi Jaiswal, Tomislav Jukić, Zvonko Kusic, Ngoako Solomon Mabapa, Ashwini Kumar Nepal, Teofilo O L San Luis, Jia Qing Zhen, Michael Bruce Zimmermann
CONTEXT: Thyroglobulin (Tg) may be a sensitive biomarker of iodine nutrition in pregnant women (PW). A dried blood spot (DBS) assay would simplify collection and transport in field studies. OBJECTIVES: Our aims were to: 1) establish a reference range for DBS-Tg in iodine-sufficient PW; 2) test this reference range in PW with a range of iodine intakes; and 3) determine if co-measurement of Tg antibodies (Ab) is necessary to define population iodine status. Design, Settings and Participants: Standardized cross-sectional studies in 3870 PW from 11 countries with iodine intakes from deficient to more-than-adequate...
October 12, 2016: Journal of Clinical Endocrinology and Metabolism
Kaili Zhang, Ying Wang, Weiyuan Ma, Zhigang Hu, Pengxin Zhao
Hashimoto thyroiditis (HT) is a common autoimmune disease. Genistein is an isoflavone with immunomodulatory functions in various diseases. In this double-blind, randomized, placebo-controlled clinical study, we investigated the effects of genistein on patients with HT. A total of 218 patients were recruited. Genistein treated patients had a significant increased T4, fT4 levels, as well as reduction in serum TSH, TPOAb and TgAb levels, compared with those receiving placebo. Furthermore, Th1 related cytokine IFN-γ and IL-2 changes after genistein treatment suggest the immune modulating effect of genistein is mediated through regulating the function of Th1 cells...
October 4, 2016: Immunobiology
Na Liu, Zhaowei Meng, Qiang Jia, Jian Tan, Guizhi Zhang, Wei Zheng, Renfei Wang, Xue Li, Tianpeng Hu, Arun Upadhyaya, Pingping Zhou, Sen Wang
(131)I treatment is an important management method for patients with differentiated thyroid cancer (DTC). Unsuccessful (131)I ablation drastically affects the prognosis of the patients. This study aimed to analyze potential predictive factors influencing the achievement of a disease-free status following the first (131)I therapy. This retrospective review included 315 DTC patients, and multiple factors were analyzed. Tumor size, pathological tumor stage, lymph node (LN) metastasis, distant metastasis, American Thyroid Association recommended risks, pre-ablation thyroglobulin (Tg), and thyroid stimulating hormone (TSH) displayed significant differences between unsuccessful and successful group...
October 10, 2016: Scientific Reports
Yan Wang, Yu-Xia Zhang, Yong-Lie Zhou, Jun Xia
BACKGROUND: In order to establish suitable reference intervals of thyroid-stimulating hormone (TSH), free (unbound) T4 (FT4), free triiodothyronine (FT3), total thyroxine (T4), and total triiodothyronine (T3) for the patients collected in Zhejiang, China, an indirect method was developed using the data from the people presented for routine health check-up. METHODS: Fifteen thousand nine hundred and fifty-six person's results were reviewed. Box-Cox or Case Rank was used to transform the data to normal distribution...
September 26, 2016: Journal of Clinical Laboratory Analysis
Antonella Bena, Manuela Orengia, Ennio Cadum, Elena Farina, Alessandro Alimonti, Beatrice Bocca, Monica Chiusolo, Elena De Felip, Martina Gandini, Anna Laura Iamiceli, Anna Pino, Enrico Procopio, Giuseppe Salamina
Only few studies on the health effect of waste incinerators were focused on human biomonitoring (HBM). Our aim is to describe a protocol for assessing early variation of selected items in a population group living close to a waste incinerator in Turin, Italy. A cohort of 394 subjects was randomly selected, among residents near the incinerator and residents far from it. To achieve this sample size, 765 subjects were contacted. The cohort was monitored before the start-up of the plant and will be followed up 1 and 3 years after, with measurements of respiratory function, selected blood and urine parameters including 19 metals, 17 congeners of PCDDs/Fs, 12 congeners of DL-PCBs, 30 congeners of NDL-PCBs, 11 OH-PAHs, specific hormones (T3, T4, TSH, cortisol and ACTH) and common health parameters...
November 2016: Environmental Monitoring and Assessment
Shalini D Soechitram, Sietske A Berghuis, Theo J Visser, Pieter J J Sauer
BACKGROUND: Several studies have shown effects of polychlorinated biphenyls (PCBs) on serum thyroid hormone levels in pregnant woman and their infants, while other studies did not find such effects. How PCBs might affect thyroid hormone metabolism, is still unclear. Potential mechanisms are direct influence on the thyroid gland, binding to thyroid binding proteins, increased excretion or metabolism of thyroid hormones by deiodinases or sulfatases. It is also not well known whether the effect on thyroid hormone levels is caused by PCBs themselves, or by their hydroxylated metabolites (OH-PCBs)...
October 3, 2016: Science of the Total Environment
Sarah J Peterson, Elizabeth A McAninch, Antonio C Bianco
CONTEXT: Levothyroxine (LT4) monotherapy is the standard of care for hypothyroidism. OBJECTIVE: To determine whether LT4 at doses that normalize the serum TSH is associated with normal markers of thyroid status. DESIGN: Cross-sectional data from the US National Health and Nutrition Examination Survey (2001-2012) was used to evaluate 52 clinical parameters. LT4-users were compared to healthy controls and controls matched for age, sex, race, and serum TSH...
October 4, 2016: Journal of Clinical Endocrinology and Metabolism
Melahat Atasever, Muberra Namli Kalem, Çiğdem Sönmez, Mehmet Murat Seval, Seda Sahin Aker, Tuncay Yuce, Acar Koç, Hakan Genc
OBJECTIVE: The aim of the study is to investigate the relationship between changes in serotonin levels during pregnancy and fibromyalgia syndrome(FS) and the relationships between FS and the physical/psychological state, biochemical and hormonal parameters, which may be related to the musculoskeletal system. STUDY DESIGN: This study is a prospective case-control study conducted with 277 pregnant women at the obstetric unit of Ankara University Faculty of Medicine, in the period between January and June 2015...
October 3, 2016: Journal of Maternal-fetal & Neonatal Medicine
Lies Langouche, Ina Lehmphul, Sarah Vander Perre, Josef Koehrle, Greet Van den Berghe
BACKGROUND: Critical illness is hallmarked by low circulating T4 and T3 concentrations, in the presence of elevated rT3 and low-normal TSH, referred to as non-thyroidal illness (NTI). Thyroid hormone (TH) metabolism is substantially increased during NTI, in part explained by enhanced deiodinase 3 (D3) activity. T4- and T3-sulfate concentrations are elevated, due to suppressed D1 activity in the presence of unaltered sulfotransferase activity, and 3,3'-diiodothyronine (3,3'-T2) concentrations are normal...
September 27, 2016: Thyroid: Official Journal of the American Thyroid Association
Abhilash Chandra
BACKGROUND: There is an increased prevalence of hypothyroidism in chronic kidney disease (CKD) patients as the glomerular filtration rate falls. However, there is a paucity of Indian data in this respect. METHODS: A cross-sectional analysis was performed based on the database of the information system of a tertiary care hospital in northern India to retrieve results of nephrology CKD outpatients (> 18 years of age) from September 2013 to October 2015 to determine the prevalence of hypothyroidism in the non-dialysis-dependent CKD population...
September 2016: Kidney Research and Clinical Practice
Farzaneh Faraji Shahrivar, Mohammad Badavi, Mahin Dianat, Ali Mard, Akram Ahangarpour, Alireza Samarbaf-Zadeh
The most important conditions associated with hypothyroidism is the cardiac dysfunction. Apelin is an endogenous ligand, involved in energy storage and metabolism which improves cardiac contractility. This study was done to evaluate the effects of apelin, l-Thyroxin (T4) or a combination of both, on cardiac function and mRNA expression of two contractile proteins, α and β myosin heavy chain (α-MHC and β-MHC), in 6-propyl-2-thiouracil (PTU)-induced hypothyroid rats. Forty male Wistar rats were randomly assigned into five groups: Ctrl (Control), and 4 hypothyroid groups (H, HA, HT, and HAT)...
September 20, 2016: Gene
Zari Tahannejad Asad, Majid Ghazanfari, Seyyed Nima Naleini, Azam Sabagh, Wesam Kooti
INTRODUCTION: Regarding the functioning of the endocrine system, and especially in the thyroid of patients with thalassemia, multiple studies in different parts of the world have reported conflicting results. The aim of this study was to assess the levels of thyroid hormones and TSH in beta-thalassemic patients in the city of Ahwaz. METHODS: In this matched case-control study, 105 patients in the case group and 105 subjects as controls were randomly selected from clients referred to the Abuzar hospital in 2015-2016...
July 2016: Electronic Physician
Michael D Thompson, Rohan K Henry
BACKGROUND: Myxedema coma (MC), a medical emergency defined as severe hypothyroidism leading to altered mental status, is more common in older women with hypothyroidism. METHODS/RESULTS: A 7-year-old Caucasian male with chromosome 1q deletion presented with altered mental status preceded by milestone regression. His presenting labs results were: thyroid-stimulating hormone (TSH) 0.501 μIU/ml and free thyroxine (T4) <0.5 ng/dl. His morning cortisol level was 8...
September 16, 2016: Hormone Research in Pædiatrics
Tarunveer Singh Ahluwalia, Jesper Thorvald Troelsen, Marie Balslev-Harder, Jette Bork-Jensen, Betina Heinsbæk Thuesen, Charlotte Cerqueira, Allan Linneberg, Niels Grarup, Oluf Pedersen, Torben Hansen, Louise Torp Dalgaard
BACKGROUND: Levels of serum thyroid-stimulating hormone (TSH) indicate thyroid function, because thyroid hormone negatively controls TSH release. Genetic variants in the vascular endothelial growth factor A (VEGFA) gene are associated with TSH levels. The aim of this study was to characterise the association of VEGFA variants with TSH in a Danish cohort and to identify and characterise functional variants. METHODS: We performed an association study of the VEGFA locus for circulating TSH levels in 8445 Danish individuals...
September 14, 2016: Journal of Medical Genetics
Y Sertbas, Y Akcan, M Yazici
Objectives: The aim of this study is to evaluate the variation of cardiovascular risks of subclinical hypothyroid patients with thyroid hormone replacement therapy by using Framingham Risk Scoring system. Materials and methods: In this study 21 subclinical hypothyroid and 22 healthy volunteers, between the ages 37 to 68 were taken as cases and control groups. Subclinical hypothyroid patients were given L-T4 replacement therapy for one-year to keep the thyroid hormone (TSH) values in normal ranges...
October 16, 2015: West Indian Medical Journal
Marie Margarete Meyerholz, Kirsten Mense, Matthias Linden, Mariam Raliou, Olivier Sandra, Hans-Joachim Schuberth, Martina Hoedemaker, Marion Schmicke
BACKGROUND: Before the onset of fetal thyroid hormone production, the transplacental delivery of maternal thyroid hormones is necessary for embryonic and fetal development. Therefore, the adaptation of maternal thyroid hormone metabolism may be important for pregnancy success and embryo survival. The aims of this study were to determine the thyroid hormone levels during the early peri-implantation period until day 18 and on the day of ovulation, to determine whether pregnancy success is dependent on a "normothyroid status" and to determine whether physiological adaptations in maternal thyroid hormone metabolism occur, which may be necessary to provide sufficient amounts of biologically active T3 to support early pregnancy...
2016: Acta Veterinaria Scandinavica
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