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Thyroid stimulating hormone

Asami Fujii, Naoya Inoue, Mikio Watanabe, Chisa Kawakami, Yoh Hidaka, Yoshihide Hayashizaki, Yoshinori Iwatani
BACKGROUND: Graves' disease (GD) and Hashimoto's disease (HD) are autoimmune thyroid diseases distinguished by the presence or absence of an anti-thyroid stimulating hormone receptor (TSHR) antibody (TRAb). TSHR gene polymorphisms determine the amount of TSHR expressed, which may in turn influence TRAb production. The FANTOM5 project identified six GD-associated SNPs within the enhancer regions of TSHR and unknown genes. In this study, we examined the association of 11 TSHR and unknown gene polymorphisms, 5 of which are located in TSHR enhancer regions, with the development and prognosis of GD and HD...
October 20, 2016: Thyroid: Official Journal of the American Thyroid Association
So-Hyun Moon, Bum-Joon Lee, Seong-Jin Kim, Hwan-Cheol Kim
BACKGROUND: Night shift work has well-known adverse effects on health. However, few studies have investigated the relationship between thyroid diseases and night shift work. This study aimed to examine night shift workers and their changes in thyroid stimulating hormones (TSH) levels over time. METHODS: Medical check-up data (2011-2015) were obtained from 967 female workers at a university hospital in Incheon, Korea. Data regarding TSH levels were extracted from the records, and 2015 was used as a reference point to determine night shift work status...
2016: Annals of Occupational and Environmental Medicine
Xu Bojin, Yang Hui, Wang Zhixiao, Yang Tao, Guo Hongwei, Cheng Pei, He Wei, Sun Min, Chen Huanhuan, Duan Yu
This study investigated whether high-normal thyrotropin (TSH) levels are associated with metabolic syndrome in euthyroid Chinese people≥40 years old. Clinical and metabolic factors were assessed in 2,356 subjects (40-77 years old) with TSH levels in the normal range (0.35-5.00 mU/L). Using 2.50 mU/L as the cut-off point of TSH level within the normal range, we divided subjects into the high-TSH (2.50-5.00 mU/L; n=1,064) and low-TSH (0.35-2.50 mU/L; n=11,292) group. The results showed that the mean levels of body mass index (BMI), total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), and fasting plasma glucose (FPG) were higher in the high-TSH group and TSH levels were significantly positively correlated with BMI, LDL-C, TC, and FPG...
June 17, 2016: Journal of Biomedical Research
Karla Zanolla Dias de Souza, Fabiene Bernardes Castro Vale, Selmo Geber
OBJECTIVE: The objective of this study was to evaluate the efficacy of Tribulus terrestris for the treatment of hypoactive sexual desire disorder in postmenopausal women and evaluate its effect on the serum levels of testosterone. METHODS: We performed a prospective randomized, double-blinded, placebo-controlled study, during 18 months. A total of 45 healthy sexually active postmenopausal women reporting diminished libido were selected to participate in the study and were randomly assigned to receive 750 mg/d of T terrestris or placebo for 120 days...
October 10, 2016: Menopause: the Journal of the North American Menopause Society
Anelia V Bivolarska, Ana I Maneva, Penka D Gatseva, Mariana N Katsarova
AIM: To find correlations between high thiocyanate and nitrate levels and low selenium levels and the indicators of the iodine and iron status of postpartum women. MATERIALS AND METHODS: The study included 41 mothers aged 26.4±5.9 yrs from Asenovgrad and nearby villages. Urinary iodine was determined by the Sandell-Kolthoff reaction and thiocyanate - by the interaction of these ions with acidic solution of KMnO4; for serum nitrates we used the colorimetric method; serum selenium was assessed by electro-thermal atomic-absorption spectrophotometry; thyroxin (FT4), the thyroid stimulating hormone (TSH), serum ferritin (SF), and serum transferrin receptor (sTfR) were determined using ELISA; Hb levels were determined by hematology analyzer...
September 1, 2016: Folia Medica
Yuan Qu, Rui Huang, Lin Li
OBJECTIVES: To compare the ablation results, therapeutic responses and adverse reactions between a low dose (1.1 GBq) or high dose (3.7 GBq) of (131)I in low-/intermediate-risk differentiated thyroid cancer (DTC) patients. The factors influencing the ablation result and therapeutic response were also analyzed. METHODS: The researchers used a random number table to randomly assign the enrolled patients to the low-dose group or high-dose group at a 1:1 ratio, and assessment of ablation result, therapeutic response, and adverse reactions evaluated 6 ± 3 months after therapy...
October 18, 2016: Annals of Nuclear Medicine
K R Anila, Nileena Nayak, K Jayasree
INTRODUCTION: Chronic lymphocytic thyroiditis [Hashimoto thyroiditis (HT)] is a common thyroid lesion diagnosed on fine-needle aspiration cytology (FNAC). Apart from FNAC, various other parameters, such as clinical features, ultrasonographic findings, antithyroid antibody levels, hormone profiles, and radionuclide thyroid scan, are also taken into consideration in making a diagnosis of HT. AIMS: To grade lymphocytic thyroiditis based on the cytomorphology and to correlate the cytological grades with the levels of antithyroid peroxidase antibody (ATPO), antithyroglobulin antibody (ATG), and thyroid stimulating hormone (TSH)...
July 2016: Journal of Cytology
Surjit Singh, Pramod Kumar Sharma
Here, we present a case of chronic myeloid leukemia for which imatinib therapy was initated. Triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone was normal, and thyroid microsomal autoantibodies (TMA) were positive and patient was diagnosed as thyroiditis treated with corticosteroids for 1½ months which lead to resolution.
July 2016: Indian Journal of Pharmacology
Maria Papaleontiou, Anne R Cappola
No abstract text is available yet for this article.
October 18, 2016: JAMA: the Journal of the American Medical Association
Tim I M Korevaar, Eric A P Steegers, Victor J Pop, Maarten A Broeren, Layal Chaker, Yolanda B de Rijke, Vincent W V Jaddoe, Marco Medici, Theo J Visser, Henning Tiemeier, Robin P Peeters
CONTEXT: Thyroperoxidase antibody (TPOAb) positivity is the main risk factor for thyroid dysfunction during pregnancy and is consistently associated with premature delivery. However, the underlying mechanism is currently unknown. We hypothesized that TPOAb positivity may interfere with gestational thyroid stimulation induced by the pregnancy hormone human chorionic gonadotropin (hCG). DESIGN, SETTING AND PARTICIPANTS: TSH, FT4, TPOAbs and/or hCG concentrations were measured in early and late pregnancy of 7587 pregnant women from two Dutch population-based prospective cohorts (N=5924 Generation R; N=1663 HAPPY)...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
Alina Gavrila, Per-Olof Hasselgren, Allison Glasgow, Ashley N Doyle, Alice Lee, Peter Fox, Gautam Shiva, 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 insight 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...
October 17, 2016: Thyroid: Official Journal of the American Thyroid Association
Yen-Ting Chen, Fen-Yu Tseng, Pei-Lung Chen, Yu-Chao Chi, Der-Sheng Han, Wei-Shiung Yang
Spot 14 (S14) is a protein involved in fatty acid synthesis and was shown to be induced by thyroid hormone in rat liver. However, the presence of S14 in human serum and its relations with thyroid function status have not been investigated.The objectives of this study were to compare serum S14 concentrations in patients with hyperthyroidism or euthyroidism and to evaluate the associations between serum S14 and free thyroxine (fT4) or thyroid-stimulating hormone (TSH) levels.We set up an immunoassay for human serum S14 concentrations and compared its levels between hyperthyroid and euthyroid subjects...
October 2016: Medicine (Baltimore)
Xiaojun Ren, Zhaowei Meng, Ming Liu, Mei Zhu, Qing He, Qing Zhang, Li Liu, Kun Song, Qiyu Jia, Qiang Jia, Xue Li, Jian Tan, Wei Zheng, Renfei Wang, Na Liu, Tianpeng Hu
Mean platelet volume (MPV) and platelet distribution width (PDW) are morphometric indices of size distribution and variability of platelet. We aimed to explore the associations between MPV or PDW and thyroid function in a large Chinese cohort.This was a cross-sectional study with a recruitment of 13,622 self-reported healthy Chinese (8424 males, 5198 females). Clinical data of the participants comprised of anthropometric measurements, hepatic function, renal function, serum levels of lipid, glucose, C-reactive protein, erythrocyte sedimentation rate, platelet, MPV, PDW, and thyroid hormones...
October 2016: Medicine (Baltimore)
Matthew McGovern, Zahra Reyani, Pamela O'Connor, Martin White, Jan Miletin
: Our aim was to assess the utility of serum thyroxine and thyroid stimulating hormone performed at 10-14 days of life in diagnosing congenital hypothyroidism (CH) in babies born to mothers with hypothyroidism. This was a retrospective study of all babies born in a tertiary referral centre for neonatology over a 12-month period. Infants who had thyroid function testing (TFT) checked at 10-14 days of life because of maternal hypothyroidism during the period of study were included. The results of the newborn bloodspot and day 10-14 TFT were recorded along with whether or not patients were subsequently treated...
October 14, 2016: European Journal of Pediatrics
Imran M Paruk, Yasmeen Ganie, Sureka Maharaj, Fraser J Pirie, Vasudevan G Naidoo, Ntombifikile M Nkwanyana, Hilary L Dinnematin, Pratistadevi K Ramdial, Ayesha A Motala
OBJECTIVE: Data on the prevalence of autoimmune thyroid disease (AITD) and gastric autoimmunity in type 1 diabetes mellitus (T1DM) in Africa are limited. The aim of this study was to assess the prevalence of antithyroid peroxidase (TPO-A) and antiparietal cell antibody (PCA) in patients with T1DM at a tertiary diabetes clinic in Durban, South Africa. RESEARCH DESIGN AND METHODS: This was a cross-sectional observational study among subjects attending the adult T1DM clinic at Inkosi Albert Luthuli Hospital...
October 14, 2016: Postgraduate Medical Journal
Jeffrey M Kroopnick, Caroline S Kim
Overt hypothyroidism in pregnancy, defined as an elevated serum thyroid-stimulating hormone (TSH) and reduced serum free thyroxine or a TSH >10 mIU/L, is known to have adverse effects on pregnancy. Subclinical hypothyroidism is typically defined as an elevated TSH and normal FT4 levels. There remains much controversy on the benefit of starting levothyroxine for mothers diagnosed with subclinical hypothyroidism. Recent studies are redefining the normal range for TSH in pregnancy, and the data on whether treatment of subclinical hypothyroidism improves outcomes for the mother and fetus are unclear...
October 14, 2016: Seminars in Reproductive Medicine
Bryan R Haugen
Thyroid nodules are very common, and thyroid cancer is currently the fifth leading cancer diagnosis in women. The American Thyroid Association has led the development and revision of guidelines for the management of patients with thyroid nodules and differentiated thyroid cancer (DTC). The most current revision was published in the January 2016 issue of the journal Thyroid. The current guidelines have 101 recommendations, with 8 figures and 17 tables that are hopefully helpful to those treating patients with thyroid nodules and cancer...
October 14, 2016: Cancer
Justin Darcy, Samuel McFadden, Yimin Fang, Joshua A Huber, Chi Zhang, Liou Y Sun, Andrzej Bartke
Ames dwarf mice (Prop1(df/df)) are long-lived due to a loss of function mutation resulting in deficiency of growth hormone (GH), thyroid-stimulating hormone and prolactin. Along with a marked extension of longevity, Ames dwarf mice have improved energy metabolism as measured by an increase in their oxygen consumption (VO2) and heat production, as well as a decrease in their respiratory quotient (RQ). Along with alterations in energy metabolism, Ames dwarf mice have a lower core body temperature (Tco). Moreover, Ames dwarf mice have functionally altered epididymal white adipose tissue (eWAT) that improves, rather than impairs, their insulin sensitivity due to a shift from pro- to anti-inflammatory cytokine secretion...
October 14, 2016: Endocrinology
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
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
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