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subclinical hypothyroidism

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https://www.readbyqxmd.com/read/28448812/effect-of-exposure-to-p-p%C3%A2-dde-during-the-first-half-of-pregnancy-in-the-maternal-thyroid-profile-of-female-residents-in-a-mexican-floriculture-area
#1
José Ángel Hernández-Mariano, Luisa Torres-Sánchez, Susana Bassol-Mayagoitia, Maria Consuelo Escamilla-Nuñez, Mariano E Cebrian, Érika Adriana Villeda-Gutiérrez, Guadalupe López-Rodríguez, Eunice Elizabeth Félix-Arellano, Julia Blanco-Muñoz
BACKGROUND: Dichlorodiphenyldichloroethene (p,p´-DDE), the main metabolite of dichlorodiphenyltrichloroethane (DDT), has been associated with changes in human thyroid hormone levels. Maternal thyroid hormones are essential for adequate fetal neurodevelopment during the first half of pregnancy. OBJECTIVE: To evaluate the association between maternal p,p´-DDE concentration and the maternal thyroid profile during the first half of pregnancy. MATERIALS AND METHODS: We analyzed the information of 430 pregnant women from a Mexican floriculture area, with a gestational age ≤16 weeks...
April 24, 2017: Environmental Research
https://www.readbyqxmd.com/read/28447527/serum-thyroid-hormone-levels-among-chinese-pregnant-women
#2
Yunxian Yu, Xiawei Li, Shuying Jiang, Wen Jiang, Jinhua Wu, Zhaopin Wang, Shuojia Wang, Minchao Li, Haigeng Xu, Yun Lv, Jinxing Jiang, Yongfeng Ding, Boer Zhang
AIM: The aim of this study is to examine gestational serum thyroid hormone levels and influencing factors among Chinese pregnant women with high dietary iodine intake. METHODS: The study was conducted from 2011 and 2013 in Zhoushan Women & Children's Hospital, Zhejiang, China. A total of 1991 pregnant women were enrolled and their serum levels of free thyroid hormones (FT4, FT3, and TSH) were detected by chemiluminescence method. RESULTS: Gestational serum FT4 and FT3 decreased with gestational week while TSH increased...
April 27, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28439924/prevalence-and-predictors-of-thyroid-functional-abnormalities-in-newly-diagnosed-al-amyloidosis
#3
E Muchtar, D S Dean, A Dispenzieri, D Dingli, F K Buadi, M Q Lacy, S R Hayman, P Kapoor, N Leung, S Russell, J A Lust, Yi Lin, R Warsame, W Gonsalves, T V Kourelis, R S Go, R Chakraborty, S Zeldenrust, R A Kyle, S Vincent Rajkumar, S K Kumar, M A Gertz
BACKGROUND: Data on the effect of systemic immunoglobulin light chain amyloidosis (AL amyloidosis) on thyroid function are limited. OBJECTIVE: To assess the prevalence of hypothyroidism in AL amyloidosis patients and determine its predictors. METHODS: 1142 newly diagnosed AL amyloidosis patients were grouped based on the thyroid-stimulating hormone (TSH) measurement at diagnosis: hypothyroid group (TSH above upper normal reference; >5 mIU L(-1) ; n = 217, 19% of study participants) and euthyroid group (n = 925, 81%)...
April 24, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28434158/physical-performance-in-newly-diagnosed-hypothyroidism-a-pilot-study
#4
D Gallo, E Piantanida, G Veronesi, A Lai, L Sassi, V Lombardi, E Masiello, P Premoli, E Bianconi, C Cusini, S Rosetti, M L Tanda, A Toniolo, M Ferrario, L Bartalena
OBJECTIVE: Hypothyroidism is complicated by neuromuscular symptoms (myalgias, slowness of movements, and tiredness) and signs (easy fatigability and cramps), which may have a negative impact on general well-being and quality of life. In a pilot, prospective, controlled study, we investigated the features of muscle dysfunction in hypothyroidism by disease questionnaire, biochemical measures, and physical performance tests. MATERIALS AND METHODS: Fifty-seven consecutive patients with newly diagnosed hypothyroidism were enrolled, 27 subclinical (S-Hypo) and 30 overt (O-Hypo)...
April 22, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28433882/hypothyroidism-following-allogeneic-hematopoietic-stem-cell-transplantation-for-acute-myeloid-leukemia
#5
Michael Medinger, Deborah Zeiter, Dominik Heim, Jörg Halter, Sabine Gerull, André Tichelli, Jakob Passweg, Nicole Nigro
BACKGROUND: Hypothyroidism may complicate allogeneic hematopoietic stem cell transplantation (allo-HSCT); we therefore analyzed risk factors in this study. PATIENTS AND METHODS: We studied 229 patients with acute myeloid leukemia (AML) who underwent an allo-HSCT between 2003 and 2013 with different conditioning regimens (myeloablative, reduced-intensity, chemotherapy-based, or total body irradiation-based). Thyroid-stimulating hormone (TSH) and free thyroxine levels (fT4) were available in 104 patients before and after allo-HSCT...
April 13, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28429281/impact-of-thyroid-disease-on-testicular-function
#6
REVIEW
Sandro La Vignera, Roberto Vita, Rosita A Condorelli, Laura M Mongioì, Silvia Presti, Salvatore Benvenga, Aldo E Calogero
INTRODUCTION: Testis was considered unresponsive to thyroid hormone for a long time. However, like in animals, the presence of thyroid hormone receptors in different testicular cell types was demonstrated also in humans. Accordingly, thyrotoxicosis and hypothyroidism have remarkable effects on testicular function and more extensively on fertility. REVIEW: Thyrotoxicosis and hypothyroidism are associated with changes affecting the endocrine, sexual, or reproductive functions...
April 20, 2017: Endocrine
https://www.readbyqxmd.com/read/28424174/the-clinical-value-of-regular-thyroid-function-tests-during-amiodarone-treatment
#7
Stan Benjamens, Robin P F Dullaart, Wim J Sluiter, Michiel Rienstra, Isabelle C van Gelder, Thera P Links
OBJECTIVE: Amiodarone is used for the maintenance of sinus rhythm in patients with arrhythmias, but thyroid dysfunction (amiodarone-induced thyrotoxicosis(AIT) or -hypothyroidism(AIH)) is a common adverse effect. Since the onset of AIT and AIH may be unpredictable, the value of long-term regular monitoring of amiodarone treated patients for thyroid dysfunction is still uncertain. DESIGN: We retrospectively documented the frequency at which overt thyroid dysfunction was preceded by subclinical thyroid dysfunction...
April 19, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28414788/patients-with-subclinical-hypothyroidism-before-20-weeks-of-pregnancy-have-a-higher-risk-of-miscarriage-a-systematic-review-and-meta-analysis
#8
Yibing Zhang, Haoyu Wang, Xifeng Pan, Weiping Teng, Zhongyan Shan
OBJECTIVE: To evaluate the relationship between subclinical hypothyroidism (SCH) and the risk of miscarriage before 20 weeks of pregnancy. METHODS: Literature databases were searched, including the PubMed, Web of Science, Embase and Cochrane databases, from January 1, 1980, to December 31, 2015. The following search terms were used: subclinical hypothyroidism, hypothyroidism, thyroid dysfunction, thyroid hypofunction, subclinical thyroid disease, thyroid dysfunction, pregnancy loss, abortion and miscarriage...
2017: PloS One
https://www.readbyqxmd.com/read/28412871/the-effect-of-oil-and-water-soluble-contrast-medium-in-hysterosalpingography-on-thyroid-function
#9
Shuhei So, Wakasa Yamaguchi, Hiroko Tajima, Takeshi Nakayama, Naoaki Tamura, Naohiro Kanayama, Fumiko Tawara
Hysterosalpingography (HSG) using iodinated contrast medium is X-ray diagnostic test that examines the inside of the uterus and fallopian tubes in infertile women. In this study, we compared thyroid function (thyroid stimulating hormone: TSH and free-T4: FT4 levels) after HSG with an oil-soluble contrast medium (OSCM) and a water-soluble contrast medium (WSCM). One hundred and sixty-four and 94 patients with normal thyroid function received HSG with OSCM and WSCM, respectively. Approximately 25% of the women in the OSCM group developed subclinical hypothyroidism (SCH), whereas only less than 10% of the patients in the WSCM group developed SCH...
April 17, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28406057/subclinical-hypothyroidism-should-we-treat
#10
Christopher Redford, Bijay Vaidya
Subclinical hypothyroidism (also known as compensated hypothyroidism or mild hypothyroidism) is a condition associated with a raised serum concentration of thyroid stimulating hormone (TSH) but a normal serum free thyroxine (FT4). It is common, affecting about 10% of women above the age of 55 years. Autoimmunity is the commonest cause of subclinical hypothyroidism. About 2.5% of patients with subclinical hypothyroidism progress to clinically overt hypothyroidism each year; the rate of progression is higher in patients with thyroid autoantibodies and higher thyroid stimulating hormone levels...
January 1, 2017: Post Reproductive Health
https://www.readbyqxmd.com/read/28403083/subclinical-hypothyroidism-and-the-risk-of-chronic-kidney-disease-in-t2d-subjects-a-case-control-and-dose-response-analysis
#11
Jian-Bo Zhou, Hong-Bing Li, Xiao-Rong Zhu, Hai-Lin Song, Ying-Ying Zhao, Jin-Kui Yang
Evidence indicated a positive association between subclinical hypothyroidism (SCH) and cardiovascular diseases. But the relationship between SCH and chronic kidney diseases (CKD) remains unclear. A case-control study was performed to ascertain this relationship followed by a meta-analysis. In this hospital-based, case-control study, we recruited 3270 type 2 diabetic patients with euthyroidism and 545 type 2 diabetic patients with SCH. All English studies were searched upon the relationship between SCH and CKD up to October 2016...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28402245/thyroid-hormone-therapy-for-older-adults-with-subclinical-hypothyroidism
#12
David J Stott, Nicolas Rodondi, Patricia M Kearney, Ian Ford, Rudi G J Westendorp, Simon P Mooijaart, Naveed Sattar, Carole E Aubert, Drahomir Aujesky, Douglas C Bauer, Christine Baumgartner, Manuel R Blum, John P Browne, Stephen Byrne, Tinh-Hai Collet, Olaf M Dekkers, Wendy P J den Elzen, Robert S Du Puy, Graham Ellis, Martin Feller, Carmen Floriani, Kirsty Hendry, Caroline Hurley, J Wouter Jukema, Sharon Kean, Maria Kelly, Danielle Krebs, Peter Langhorne, Gemma McCarthy, Vera McCarthy, Alex McConnachie, Mairi McDade, Martina Messow, Annemarie O'Flynn, David O'Riordan, Rosalinde K E Poortvliet, Terence J Quinn, Audrey Russell, Carol Sinnott, Jan W A Smit, H Anette Van Dorland, Kieran A Walsh, Elaine K Walsh, Torquil Watt, Robbie Wilson, Jacobijn Gussekloo
Background The use of levothyroxine to treat subclinical hypothyroidism is controversial. We aimed to determine whether levothyroxine provided clinical benefits in older persons with this condition. Methods We conducted a double-blind, randomized, placebo-controlled, parallel-group trial involving 737 adults who were at least 65 years of age and who had persisting subclinical hypothyroidism (thyrotropin level, 4.60 to 19.99 mIU per liter; free thyroxine level within the reference range). A total of 368 patients were assigned to receive levothyroxine (at a starting dose of 50 μg daily, or 25 μg if the body weight was <50 kg or the patient had coronary heart disease), with dose adjustment according to the thyrotropin level; 369 patients were assigned to receive placebo with mock dose adjustment...
April 3, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28386276/cholesterol-synthesis-increased-in-the-mmi-induced-subclinical-hypothyroidism-mice-model
#13
Yongfeng Song, Xiujuan Zhang, Wenbin Chen, Ling Gao
Subclinical hypothyroidism (SCH) is defined as increased serum thyroid-stimulating hormone (TSH) concentrations and normal serum thyroid hormone (TH) levels as well as an increased serum cholesterol level, which is an important cause of secondary hypercholesterolemia and cardiovascular diseases. Some studies have demonstrated a direct effect of TSH on cholesterol metabolism via in vivo and in vitro experiments. However, because no suitable SCH model has been established until now, the changes in cholesterol synthesis that occur in SCH patients remain unknown...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28385684/levothyroxine-shows-no-benefit-in-elderly-patients-with-subclinical-hypothyroidism-trial-finds
#14
Susan Mayor
No abstract text is available yet for this article.
April 5, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28384120/dyslipidemia-in-subclinical-hypothyroidism-requires-assessment-of-small-dense-low-density-lipoprotein-cholesterol-sdldl-c
#15
Maida Seferovic Saric, Miljenka-Jelena Jurasic, Slavica Sovic, Bojana Kranjcec, Tatjana Glivetic, Vida Demarin
BACKGROUND: Usually both hypothyroidism and hyperthyroidism are related to the cardiovascular and cerebrovascular disease development. The relationship between subclinical hypothyroidism has been widely investigated but the findings remain controversial. The aim of the present study was to evaluate the lipid profile in patients with subclinical hypothyroidism (SHypo) in comparison to controls and to determine the association of SHypo and dyslipidemia in attempt to find importance of small dense low-density lipoprotein cholesterol (sdLDL-C) in atherosclerosis...
April 6, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28377800/evaluation-of-tp-e-interval-tp-e-qt-ratio-and-tp-e-qtc-ratio-in-patients-with-subclinical-hypothyroidism
#16
Ahmet Gürdal, Hatice Eroğlu, Füsun Helvaci, Mutlu Çağan Sümerkan, Kamber Kasali, Şükrü Çetin, Gökhan Aksan, Kadriye Kiliçkesmez
BACKGROUND: Prolongation of the peak-to-end interval of the T wave (Tp-e) has been reported as associated with ventricular arrhythmias. The aim of this study was to investigate the ventricular repolarization by using the Tp-e interval, Tp-e/QT ratio and Tp-e/ QTc ratio in patients with subclinical hypothyroidism (SH). METHODS: We studied 56 volunteers: These were 28 patients with SH (mean age 45 ± 11 years) and 28 healthy subjects (mean age 34 ± 8 years). All basic biochemical parameters were analyzed and electrocardiograms (ECGs) were recorded...
March 2017: Therapeutic Advances in Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28376799/new-association-of-bone-morphogenetic-protein-4-concentrations-with-fat-distribution-in-obesity-and-exenatide-intervention-on-it
#17
Xingchun Wang, Jiaqi Chen, Liang Li, Cui Ling Zhu, Jingyang Gao, Sharvan Rampersad, Le Bu, Shen Qu
BACKGROUND: Bone morphogenetic protein 4 (BMP-4) has been proven to regulate white adipogensis. We aimed to demonstrate the correlation of BMP-4 with fat distribution and Exenatide treatment on it. METHODS: We enrolled 69 obese patients. Anthropometric and metabolic indexes were collected. Fat distribution was measured by dual-energy X-ray absorptiometry. BPM-4 levels were assessed using enzyme-link immunosorbent assay kit. 30 obese patients were treated with Exenatide twice a day...
April 4, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28375832/fatigue-in-patients-with-systemic-sclerosis-and-hypothyroidism-a-review-of-the-literature-and-report-of-our-experience
#18
Alessandro Antonelli, Poupak Fallahi, Flavia Di Bari, Dilia Giuggioli, Silvia Martina Ferrari, Clodoveo Ferri
Persistent fatigue (defined as ongoing exhaustion, disproportionate to exertion and not adequately alleviated by rest) reduces health-related quality of life of systemic sclerosis (SSc) patients. Fatigue in SSc is associated with reduced capacity to carry out daily activities, work disability and impaired physical function. Clinical studies demonstrated a high prevalence of autoimmune thyroiditis and hypothyroidism in patients with SSc. Since hypothyroidism and the associated fatigue symptoms could be cured by L-thyroxine (L-T4) substitutive therapy, the evolution of fatigue symptoms in SSc hypothyroid patients treated with substitutive therapy has been recently evaluated, showing an amelioration of the fatigue symptoms...
April 4, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28359096/early-maternal-thyroid-function-during-gestation-is-associated-with-fetal-growth-particularly-in-male-newborns
#19
Tanja G M Vrijkotte, E Jessica Hrudey, Marcel B Twickler
Background: Intrauterine growth patterns are influenced by maternal thyroid function during gestation and by fetal sex. It is unknown, however, whether the relationships between maternal thyrotropin (TSH) and free thyroxine (fT4) levels in early pregnancy and fetal growth outcomes are modified by fetal sex. Design: Data were obtained from a community-based cohort study of pregnant women living in Amsterdam (Amsterdam Born Children and Their Development study). TSH and fT4 levels were determined during the first prenatal screening at median 13 weeks (interquartile range, 12 to 14)...
March 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28357593/the-relationship-between-subclinical-thyroid-dysfunction-and-the-risk-of-fracture-or-low-bone-mineral-density-a-systematic-review-and-meta-analysis-of-cohort-studies
#20
Ruifei Yang, Liang Yao, Yuan Fang, Jing Sun, Tiankang Guo, Kehu Yang, Limin Tian
Our aim was to assess the risk of fractures or low bone mineral density (BMD) associated with subclinical thyroid dysfunction among cohorts. We systematically searched Medline (via PubMed), EMBASE, Cochrane Library, Web of Science, CENTRAL and SinoMed up to 31 July 2016 to identify cohort studies which have analyzed associations between subclinical thyroid dysfunction and fracture or BMD. A total of 19 population-based cohorts including 79,368 participants with relationships between subclinical thyroid dysfunction and fractures or BMD were identified as eligible for this meta-analysis...
March 29, 2017: Journal of Bone and Mineral Metabolism
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