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subclinical hypothyroidism

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https://www.readbyqxmd.com/read/28102101/thyroid-in-pregnancy-from-physiology-to-screening
#1
Drahomira Springer, Jan Jiskra, Zdenka Limanova, Tomas Zima, Eliska Potlukova
Thyroid hormones are crucial for the growth and maturation of many target tissues, especially the brain and skeleton. During critical periods in the first trimester of pregnancy, maternal thyroxine is essential for fetal development as it supplies thyroid hormone-dependent tissues. The ontogeny of mature thyroid function involves organogenesis, and maturation of the hypothalamus, pituitary and the thyroid gland; and it is almost complete by the 12th-14th gestational week. In case of maternal hypothyroidism, substitution with levothyroxine must be started in early pregnancy...
January 19, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28101810/increased-incidence-of-autoimmune-thyroid-disorders-in-patients-with-psoriatic-arthritis-a-longitudinal-follow-up-study
#2
Poupak Fallahi, Silvia Martina Ferrari, Ilaria Ruffilli, Giusy Elia, Mario Miccoli, Andrea Delle Sedie, Lucrezia Riente, Alessandro Antonelli
Contrasting results have been reported about the prevalence of thyroid autoimmunity (AT) and dysfunction (TD) in patients with psoriatic arthritis (PsA). In this study, we pointed to evaluate the incidence of new cases of clinical and subclinical TD in a broad group of patients with PsA versus a control group, matched by age and gender belonging to the same geographic area. PsA patients with TD were excluded firstly, and new cases of thyroid disorders were evaluated in 97 PsA patients and 97 matched controls, who had comparable iodine intake (median follow-up of 74 months in PsA versus 92 in controls)...
January 18, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28101488/thyroid-function-and-high-sensitivity-c-reactive-protein-in-cross-sectional-results-from-the-brazilian-longitudinal-study-of-adult-health-elsa-brasil-effect-of-adiposity-and-insulin-resistance
#3
Érique José F Peixoto de Miranda, Márcio Sommer Bittencourt, Itamar S Santos, Paulo A Lotufo, Isabela M Benseñor
BACKGROUND: Subclinical hypothyroidism (SCH) is associated with an increased cardiovascular risk, but little information is available about its association with high-sensitivity C-reactive protein (hs-CRP). OBJECTIVES: This study aims to analyze the association between SCH and hs-CRP using baseline data from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). METHODS: The study has a cross-sectional design. We included subjects with normal thyroid function (thyroid-stimulating hormone, TSH, 0...
December 2016: European Thyroid Journal
https://www.readbyqxmd.com/read/28074218/-autoimmune-diseases-of-the-thyroid-gland
#4
S Allelein, J Feldkamp, M Schott
Autoimmune diseases of the thyroid gland are considered to be the most frequent cause of thyroid gland disorders. Autoimmune thyroid diseases consist of two subgroups: autoimmune thyroiditis (AIT) and Graves' disease. The AIT is the most common human autoimmune disease. Infiltration of the thyroid gland with cytotoxic T‑cells can lead to an initial thyrotoxicosis und during the course to hypothyroidism due to destruction of the thyroid gland. Substitution with Levothyroxine is indicated for manifest hypothyroidism and subclinical hypothyroidism with increased thyroid antibodies with the intention of normalizing the serum thyroid stimulating hormone (TSH)...
January 2017: Der Internist
https://www.readbyqxmd.com/read/28071990/natural-course-of-euthyroidism-and-clues-for-early-diagnosis-of-thyroid-dysfunctions-tehran-thyroid-study-tts
#5
Atieh Amouzegar, Zahra Ghaemmaghami, Maani Beygi, Safoora Gharibzadeh, Ladan Mehran, Maryam Tohidi, Fereidoun Azizi
OBJECTIVE: Considering the limited data available on the natural course of euthyroidism, this study was designed to evaluate the progression in time from euthyroidism to subclinical or overt hypo - or hyperthyroidism. METHODS: This study was conducted within the framework of the Tehran Thyroid cohort study (TTS), in which 5783 individuals aged 40.4 ± 0.2 years were followed for 6 years. The overall loss to follow-up rate was 8.3%. After applying exclusion criteria, data of 4204 euthyroid subjects remained for analysis of a six-year natural course analysis...
January 10, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28059636/the-effects-of-adequate-iodine-supply-on-the-incidence-of-iodine-induced-thyroid-disorders-in-slovenia
#6
Vid Bajuk, Katja Zaletel, Edvard Pirnat, Sergej Hojker, Simona Gaberšček
BACKGROUND: We aimed to establish the changes in the incidence and characteristics of iodine-induced hyperthyroidism (II-Hyper) and iodine-induced hypothyroidism (II-Hypo) in the two-year period before and the ten-year period after the increase in mandatory salt iodization from the previous 10 mg of potassium iodide to 25 mg per kg in 1999. Furthermore, we aimed at determining the duration of treatment in II-Hyper patients, since no data regarding severity and treatment of II-Hyper with respect to iodine supply are available...
January 6, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28057507/association-between-thyroid-hormone-parameters-and-dyslipidemia-among-type-2-diabetes-mellitus-patients-comparative-cross-sectional-study
#7
Amare Desalegn Wolide, Belay Zawdie, Tilahun Alemayehu, Samuel Tadesse
BACKGROUND: The relationship between thyroid function and lipid profile has been documented in T2DM and healthy subjects. The aim of the current study was to assess the association between thyroid hormone parameters and dyslipidemia in T2DM and non-diabetic study participants. METHOD AND MATERIALS: In this comparative cross-sectional study, 214 type 2 diabetic and 214 non-diabetic study participants were enrolled. Clinical and anthropometric data were collected from all study participants...
December 26, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28049529/analysis-of-the-factors-affecting-the-evolution-over-time-of-subclinical-hypothyroidism-in-children
#8
EDITORIAL
Mariella Valenzise, Tommaso Aversa, Giuseppina Zirilli, Giuseppina Salzano, Domenico Corica, Simona Santucci, Filippo De Luca
Aim of this commentary is to report the most recent views about natural history of subclinical hypothyroidism (SH) according to the different etiologies. In children with idiopathic SH the natural evolution is often favourable, with a high percentage of cases reverting to euthyroidism or remaining SH even after a prolonged follow-up. By contrast, the risk of a significant deterioration of thyroid status is distinctly higher in the SH children with Hashimoto's thyroiditis (HT). This risk is even higher in the cases with both HT-related SH and chromosomal abnormalities, such as Turner or Down's syndrome...
January 3, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28049387/stimulation-of-thyroid-function-by-hcg-during-pregnancy-a-risk-factor-for-thyroid-disease-and-a-mechanism-for-known-risk-factors
#9
Tim Korevaar, Yolanda B de Rijke, Layal Chaker, Marco Medici, Vincent Wv Jaddoe, Eric Ap Steegers, Theo J Visser, Robin Peeters
BACKGROUND: Thyroid autoimmunity is a major risk factor for gestational thyroid disease and recently various other risk factors have been identified, including maternal age, BMI and parity. hCG is an important determinant of gestational thyroid function, yet it is unknown to what extent differences in hCG concentration affect the risk for thyroid disease. We have recently shown that TPOAb positivity impairs the thyroidal response to hCG stimulation, which may suggest that this is a mechanism through which thyroid autoimmunity acts as a risk factor for thyroid disease...
January 3, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28040402/subclinical-hypothyroidism-lipid-metabolism-and-cardiovascular-disease
#10
REVIEW
Alessandro P Delitala, Giuseppe Fanciulli, Margherita Maioli, Giuseppe Delitala
Subclinical hypothyroidism is defined by elevated serum thyrotropin in presence of normal free thyroid hormones. Lipid metabolism is influenced by thyroid hormone and many reports showed that lipids status worsen along with TSH level. Subclinical hypothyroidism has been also linked to other cardiovascular risk factors such as alteration in blood pressure and increased atherosclerosis. Further evidences suggested that mild dysfunction of thyroid gland is associated with metabolic syndrome and heart failure. Thyrotropin level seems the best predictor of cardiovascular disease, in particular when its levels are above 10mU/L...
December 28, 2016: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28038798/cardiovascular-risk-in-chronic-autoimmune-thyroiditis-and-subclinical-hypothyroidism-patients-a-cluster-analysis
#11
Giovanni Carbotta, Francesco Tartaglia, Alessandro Giuliani, Sabino Carbotta, Luciana Tromba, Ilaria Jacomelli, Livia De Anna, Angela Fumarola
BACKGROUND: Subclinical hypothyroidism (SCH) and chronic autoimmune thyroiditis (CAT) are linked to an increased risk of atherosclerosis and coronary heart disease (CHD). The aim of this study was to look for positive markers of CHD and correlations with thyroid blood tests in patients with SCH or CAT, but no symptoms of CHD, so as to identify CHD risk conditions that otherwise would likely be missed. METHODS: We measured a series of thyroid, clinical-metabolic and cardiovascular parameters in 30 consecutive endocrinology patients enrolled in our ambulatory endocrinological referral center of "Sapienza" University of Rome...
December 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28029020/clinical-update-in-aspects-of-the-management-of-autoimmune-thyroid-diseases
#12
REVIEW
Duncan J Topliss
Aspects of autoimmune thyroid disease updated in this review include: immunoglobulin G4 (IgG4)-related thyroid disease (Riedel's thyroiditis, fibrosing variant of Hashimoto's thyroiditis, IgG4-related Hashimoto's thyroiditis, and Graves' disease with elevated IgG4 levels); recent epidemiological studies from China and Denmark indicating that excess iodine increases the incidence of Hashimoto's thyroiditis and hypothyroidism; immunomodulatory agents (ipilimumab, pembrolizumab, nivolumab) activate immune response by inhibiting T-cell surface receptors which down-regulate immune response, i...
December 2016: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28028828/thyroid-abnormalities-following-the-use-of-ctla-4-and-pd-1-inhibitors-in-the-treatment-of-melanoma
#13
D L Morganstein, Z Lai, L Spain, S Diem, D Levine, C Mace, M Gore, J Larkin
CONTEXT: Checkpoint inhibitors are emerging as important cancer therapies, but are associated with a high rate of immune side effects, including endocrinopathy. OBJECTIVE: To determine the burden of thyroid dysfunction in patients with melanoma treated with immune checkpoint inhibitors and describe the clinical course. DESIGN AND PATIENTS: Consecutive patients with melanoma treated with either Ipilimumab, Nivolumab, Pembrolizumab or the combination of Ipilimumab and Nivolumab were identified...
December 27, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/28008862/subclinical-hypothyroidism-in-children-may-lead-to-dyslipidemia-and-increased-carotid-intima-media-thickness
#14
Edip Ünal, Alper Akın, Ruken Yıldırım, Vasfiye Demir, İsmail Yıldız, Yusuf Kenan Haspolat
OBJECTIVE: Subclinical hypothyroidism (SH) is defined as elevated serum thyroid stimulating hormone (TSH) level with normal range of free thyroxine (fT4). There are very few studies in the literature reporting on the effect of SH on lipid metabolism and carotid intima-media thickness (CIMT) in children. METHODS: The study included 38 children diagnosed with SH and a control group comprising 38 healthy, euthyroid children. Subclinical hypothyroidism was diagnosed based on elevated TSH level (4...
December 23, 2016: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28008293/hormonal-and-echocardiographic-abnormalities-in-adult-patients-with-sickle-cell-anemia-in-bahrain
#15
Taysir S Garadah, Ahmed A Jaradat, Mohammed E Alalawi, Adla B Hassan
BACKGROUND: Adrenal, thyroid, and parathyroid gland hormonal changes are recognized in children with homozygous (HbSS) sickle-cell anemia (SCA), but are not clear in adult patients with SCA. AIM: To assess the metabolic and endocrine abnormalities in adult patients with SCA and evaluate left ventricular (LV) systolic and diastolic functions compared with patients with no SCA and further study the relationship between serum levels of cortisol, free thyroxine (T4), and testosterone with serum ferritin...
2016: Journal of Blood Medicine
https://www.readbyqxmd.com/read/28007842/management-of-endocrine-disease-the-impact-of-subclinical-hypothyroidism-on-anthropometric-characteristics-lipid-glucose-and-hormonal-profile-of-pcos-patients-a-systematic-review-and-meta-analysis
#16
REVIEW
Vasilios Pergialiotis, Panagiotis Konstantopoulos, Anastasia Prodromidou, Venetia Florou, Nikolaos Papantoniou, Despina N Perrea
OBJECTIVE: Subclinical hypothyroidism (SCH) is encountered in 10-25% of women with PCOS. To date, it remains unclear whether this coexistence influences the severity of metabolic and hormonal profile of these patients. The purpose of our systematic review is to investigate this potential relation. METHODS: We systematically searched Medline, Scopus, ClinicalTrials.gov, Cochrane Central Register of Controlled Trials (CENTRAL) and Google Scholar databases together with reference lists from included studies...
March 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27994873/submental-thyroid-ectopy-might-cause-subclinical-hypothyroidism-in-early-childhood
#17
Mirjana Kocova, Nikolina Zdraveska, Maja Zdravkovska, Violeta Anastasovska, Daniela Pop Gjorceva
OBJECTIVE: Thyroid ectopy is a rare condition resulting from abnormal embryologic development and migration of the gland. Sublingual is the most common thyroid ectopy; all other ectopic thyroid locations occur very rare. There are no reports in the literature that describe the clinical course of patients with congenital hypothyroidism due to thyroid ectopy. METHODS AND RESULTS: We present a child with congenital hypothyroidism detected on neonatal screening which had a subclinical course during follow-up...
2016: SAGE open medical case reports
https://www.readbyqxmd.com/read/27993872/endocan-tgf-beta-and-adma-as-risk-factors-for-endothelial-dysfunction-and-possible-vascular-disease-in-patients-with-subclinical-hypothyroidism
#18
Dilek Arpaci, Engin Karakece, Aysel Gurkan Tocoglu, Hasan Ergenc, Gonul Gurol, Ihsan Hakki Ciftci, Ali Tamer
PURPOSE: Although the relationship between atherosclerosis and overt hypothyroidism has been confirmed, it remains controversial in cases of subclinical hypothyroidism. Higher TSH and similar T4 suggest differences in set-points or differences due to diagnostic limitations regarding subclinical hypothyroidism. Endothelial dysfunction (ED) is a marker rather than a precursor of cardiovascular disease. Asymmetric dimethylarginine (ADMA) and endocan are known as novel markers of ED in various diseases...
December 2016: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/27993413/prevalence-of-hypertension-and-other-cardiovascular-risk-factors-in-subjects-with-subclinical-hypothyroidism
#19
Lidia Gonzalez Gil, Alejandro de la Sierra
BACKGROUND AND OBJECTIVE: To assess the prevalence of hypertension, diabetes, and dyslipidaemia in subjects with subclinical hypothyroidism (SH) in comparison with an age- and sex-matched control group. PATIENTS AND METHODS: Case-control study with 240 subjects with SH and 480 controls carried out on patients aged 35-75 years admitted to a Primary Care Centre. The prevalence of hypertension, diabetes and dyslipidaemia, as well as blood pressure, plasma glucose, and lipid profilses, were evaluated in both groups...
December 16, 2016: Medicina Clínica
https://www.readbyqxmd.com/read/27988318/prevalence-of-thyroid-dysfunction-and-autoimmunity-in-the-older-population-and-implications-of-age-specific-reference-ranges
#20
Flora Veltri, Francisco Oliveira Rocha, Dominique Willems, Jean-Philippe Praet, Lidia Grabczan, Pierre Kleynen, Thierry Pepersack, Kris Poppe
OBJECTIVE: To investigate the prevalence of thyroid dysfunction and autoimmunity (TAI) and to determine age-specific reference ranges in individuals <60 and ≥60-year-old. Furthermore we investigated the impact of the age-specific reference ranges on the prevalence of thyroid dysfunction. DESIGN: Retrospective analysis of laboratory data collected over six months in 2015, mainly from individuals consulting the outpatient clinic. METHOD: Data from 676 individuals were withheld, after having applied strict exclusion criteria to avoid confounders...
December 15, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
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