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Ankita Sharma, Monu, Sagarika Biswas
BACKGROUND: Transthyretin (TTR) is the transporter protein (55 kDA) that carries retinol binding protein and thyroxin (T4) in its functional tetramer form. Presence of mutation in this protein (TTR) may lead to the dissociation of tetramers to monomer which unfolds and self associates to form amyloid aggregates. Aggregation of this protein has been found to be associated with various life threatening disorders such as coronary artery disease (CAD) which is the major cause of mortality and morbidity worldwide...
March 20, 2018: Current Computer-aided Drug Design
E J F Peixoto de Miranda, M S Bittencourt, H L Staniak, R Sharovsky, A C Pereira, M Foppa, I S Santos, P A Lotufo, I M Benseñor
Data on the association between subclinical thyroid dysfunction and coronary artery disease (CAD) is scarce. We aimed to analyze the association between thyroid function and CAD using baseline data from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). We included subjects with normal thyroid function (0.4-4.0 mIU/L, and normal free thyroxine, FT4, or 0.8 to 1.9 ng/dL), subclinical hypothyroidism (SCHypo; TSH>4.0 mIU/L and normal FT4), and subclinical hyperthyroidism (SCHyper; TSH<0.4 mIU/L and normal FT4) evaluated by coronary computed tomography angiography...
March 15, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
Yu-Tang Chin, Po-Li Wei, Yih Ho, André Wendindondé Nana, Chun A Changou, Yi-Ru Chen, Yu-Chen Sh Yang, Meng-Ti Hsieh, Aleck Hercbergs, Paul J Davis, Ya-Jung Shih, Hung-Yun Lin
Thyroid hormone as L-thyroxine (T4 ), has been shown to promote ovarian cancer cell proliferation via a receptor on plasma membrane integrin αvβ3 to induce the activation of ERK1/2 and expression of programmed death-ligand 1 (PD-L1) in cancer cells. In contrast, resveratrol binds to integrin αvβ3 at a discrete site and induces p53-dependent antiproliferation in malignant neoplastic cells. The mechanism of resveratrol action requires nuclear accumulation of inducible cyclooxygenase (COX)-2 and its complexation with phosphorylated ERK1/2...
March 19, 2018: Endocrine-related Cancer
Hong-Quan Luo, Wei-Wang Gu, Li-Wen Huang, Li-Hong Wu, Yu-Guang Tian, Chun-Hua Zheng, Min Yue
Obesity is a public health problem in both developed and developing countries, and the negative effects of obesity on reproductive physiology have been highlighted recently. We evaluated the effects of porcine obesity index, sex hormones, and peptide hormones on litter size in various breeds of minipigs. Blood samples were collected from sedated 8-,10-, and 12-mo-old minipigs to measure preovulatory levels of sex hormones (follicle-stimulating hormone, luteinizing hormone, estradiol, progesterone, testosterone, and prolactin) and peptide hormones (insulin-like growth factor, glucagon, cortisol, growth hormone, free thyroxine, free triiodothyronine, insulin, and leptin)...
March 1, 2018: Journal of the American Association for Laboratory Animal Science: JAALAS
Vishnu Garla, Karthik Kovvuru, Shradha Ahuja, Venkatataman Palabindala, Bharat Malhotra, Sohail Abdul Salim
Aim: To present a case of Graves' disease complicated by methimazole induced agranulocytosis treated with therapeutic plasma exchange (TPE) and review of the literature. Case Presentation: A 21-year-old patient with a history of Graves' disease presented to the endocrine clinic. His history was significant for heat intolerance, weight loss, and tremors. Upon examination he had tachycardia, smooth goiter, thyroid bruit, and hyperactive reflexes. He was started on methimazole and metoprolol and thyroidectomy was to be done once his thyroid function tests normalized...
2018: Case Reports in Endocrinology
Eashaa Kumar, Michael T McCurdy, Christian A Koch, Abdurrahman Hamadah, Tibor Fülöp, Kamel A Gharaibeh
Unexplained hypotension in the intensive care unit is commonly attributed to volume depletion, cardiorespiratory failure, sepsis, or relative adrenal insufficiency. In these acute conditions, thyroid hormone levels measured in blood, serum or plasma are often altered and solely attributed to critical illness. We report a series of 3 critically ill patients with prolonged respiratory failure, suppressed mental status and unexplained hypotension. Thyroid stimulating hormone levels ranged from normal to mildly elevated (2...
March 2018: American Journal of the Medical Sciences
Changhwan Seo, Seonghun Kim, Misol Lee, Min-Uk Cha, Hyoungnae Kim, Seohyun Park, Hae-Ryong Yun, Jong Hyun Jhee, Youn Kyung Kee, Seung Hyeok Han, Tae-Hyun Yoo, Shin-Wook Kang, Jung Tak Park
OBJECTIVE: Patients with diabetic nephropathy (DMN) have an increased risk of cardiovascular disease (CVD). However, strategies to reduce this risk are limited. Thyroid hormone replacement therapy (THRT) in patients with hypothyroidism has been shown to reduce several surrogate markers of CVD. Therefore, we performed a study to determine if THRT would reduce CVD risk in patients with subclinical hypothyroidism (SCH) and DMN. METHODS: This was a retrospective, nonrandomized study of patients with type 2 diabetes, DMN, and SCH...
March 2018: Endocrine Practice
Giuseppe Pasqualetti, Valeria Calsolaro, Sara Bernardini, Giuseppe Linsalata, Renato Bigazzi, Nadia Caraccio, Fabio Monzani
Introduction: Although the association between low FT3 and poor outcome has been extensively reported in literature, the degree of peripheral thyroxin deiodination and its relationship with frailty and survival in hospitalized older patients has not been fully established yet. The aim of the current study was to evaluate the possible correlation between FT3/FT4 ratio reduction, an indirect marker of thyroxin deiodination impairment, and frailty status and survival in hospitalized older patients...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Thomas Lange, Kathrin Budde, Georg Homuth, Gabi Kastenmüller, Anna Artati, Jan Krumsiek, Henry Völzke, Jerzy Adamski, Astrid Petersmann, Uwe Völker, Matthias Nauck, Nele Friedrich, Maik Pietzner
Objective: Thyroid hormones are ubiqiutiously involved in human metabolism. However, the precise molecular patterns associated with alterations in thyroid hormones levels remain to be explored in detail. A number of recent studies took great advantage of metabolomics profiling to outline metabolic actions of thyroid hormones in humans. Methods: Among 952 participants of the Study of Health in Pomerania data on serum free thyroxine (FT4) and thyrotropin (TSH) as well as comprehensive (non-)targeted metabolomics data of plasma and urine samples were available...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Chien-Ling Hung, Chih-Ching Yeh, Pi-Shan Sung, Chung-Jye Hung, Chih-Hsin Muo, Fung-Chang Sung, I-Ming Jou, Kuen-Jer Tsai
BACKGROUND: Whether thyroidectomy contributes to osteoporosis (OP) and osteoporotic fracture (OF) is a subject of debate. This study aimed to determine the effect of thyroidectomy on the risk of OP and OF. METHODS: This retrospective cohort study is based on patient data between January 2000 to December 2005 from the National Health Insurance Research Database. Patients who underwent thyroidectomy were enrolled in the thyroidectomy cohort, and the control cohort was selected by propensity score matching at a ratio of 1:4...
March 14, 2018: World Journal of Surgery
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
Karin Gasser
A 10-year-old female Australian Cattle Dog was referred for investigation of a mediastinal mass. During clinical examination, a mandarin- sized mass was detected ventrally of the trachea. According to computed tomographic (CT) findings and cytology of a fine-needle aspirate, thyroid neoplasia was suspected. The assumed tumour affected the left thyroid gland and was staged as stadium II because of enlargement of the ipsilateral cervical and retropharyngeal lymph nodes. The left thyroid, including the parathyroid gland, was removed surgically with a guarded prognosis...
February 2018: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
Subhodip Pramanik, Sujoy Ghosh, Pradip Mukhopadhyay, Rana Bhattacharjee, Bidisha Mukherjee, Samim Ali Mondal, Ipsita Ghosh, Ranajit Bari, Subhankar Chowdhury
Objective: Type 2 diabetes mellitus and thyroid dysfunction (TD) are two major public health endocrine problem, but the prevalence of TD and iodine status in patients with T2 DM in India is less studied. The study objective was to explore the prevalence of TD and to evaluate iodine health in type 2 diabetes patients attending a tertiary care center in Eastern India. Methods: Consecutive 100 patients with diabetes attending outpatient department were evaluated clinically and biochemically (thyrotropin [TSH], free thyroxine, anti-TPO antibody, and urinary iodine)...
January 2018: Indian Journal of Endocrinology and Metabolism
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
Daniel Bos, Arjola Bano, Albert Hofman, Tyler J VanderWeele, Maryam Kavousi, Oscar H Franco, Meike W Vernooij, Robin P Peeters, M Arfan Ikram, Layal Chaker
Background: The underlying mechanism of the association between thyroid function and atrial fibrillation (AF) is poorly understood, but epicardial adipose tissue (EAT) could be a promising mediator. Methods: In the 1995 participants (mean age 64.5 years) from the population-based Rotterdam Study, we measured thyroid function (thyroid-stimulating hormone, free thyroxine [FT4]) and performed computed tomography to quantify EAT volumes. All participants were followed for the occurrence of AF...
2018: Clinical Epidemiology
David S Sharlin, Lily Ng, François Verrey, Theo J Visser, Ye Liu, Rafal T Olszewski, Michael Hoa, Heike Heuer, Douglas Forrest
Transmembrane proteins that mediate the cellular uptake or efflux of thyroid hormone potentially provide a key level of control over neurodevelopment. In humans, defects in one such protein, solute carrier SLC16A2 (MCT8) are associated with psychomotor retardation. Other proteins that transport the active form of thyroid hormone triiodothyronine (T3) or its precursor thyroxine (T4) have been identified in vitro but the wider significance of such transporters in vivo is unclear. The development of the auditory system requires thyroid hormone and the cochlea is a primary target tissue...
March 13, 2018: Scientific Reports
Guibo Feng, Xin Tian, Liang Wang, Libo Zhao, Xuefeng Wang
BACKGROUND: To investigate the prognostic value of acute thyroid function in patients with severe encephalitis. METHODS: We retrospectively analyzed information from patients with severe encephalitis from June 2012 to June 2017. Using multivariate logistic regression analysis, we examined predictors of poor outcomes in these patients after 6 months. RESULTS: A total of 94 patients with severe encephalitis were included in the study. Univariate analysis showed that patients with good or poor outcomes had significantly different total thyroxine (TT4) (P = 0...
March 13, 2018: Expert Review of Neurotherapeutics
Yoshiyuki Henning, Nella Mladěnková, Hynek Burda, Karol Szafranski, Sabine Begall
Mammals usually possess a majority of medium-wavelength sensitive (M-) and a minority of short-wavelength sensitive (S-) opsins in the retina, enabling dichromatic vision. Unexpectedly, subterranean rodents from the genus Fukomys exhibit an S-opsin majority, which is exceptional among mammals, albeit with no apparent adaptive value. Because thyroid hormones (THs) are pivotal for M-opsin expression and metabolic rate regulation, we have, for the first time, manipulated TH levels in the Ansell's mole-rat (Fukomys anselli) using osmotic pumps...
March 12, 2018: Scientific Reports
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
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