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https://www.readbyqxmd.com/read/29162475/-thyrotropin-reference-ranges-during-pregnancy-in-the-province-of-huelva-spain
#1
A Ortega Carpio, I Vázquez Rico, M A Castaño López, L Duarte González, M Montilla Álvaro, A Ruiz Reina
OBJECTIVE: The correct diagnosis of hypothyroidism during pregnancy requires knowledge of the local trimester-specific thyrotropin (TSH) reference ranges. When these are not available, the guidelines recommend upper limits of 2.5, 3.0, and 3.0μU/ml for the 1(st), 2(nd), and 3(rd) trimesters, respectively. The aim is to establish the reference range for our local population. MATERIAL AND METHODS: A population-based observational study was performed on healthy pregnant women from 11 healthcare centres in the province of Huelva...
November 18, 2017: Semergen
https://www.readbyqxmd.com/read/29111822/repercussions-of-hypo-and-hyperthyroidism-on-the-heart-circadian-clock
#2
Rodrigo A Peliciari-Garcia, Paula Bargi-Souza, Martin E Young, Maria Tereza Nunes
Myocardial gene expression and metabolism fluctuate over the course of the day in association with changes in energy supply and demand. Time-of-day-dependent oscillations in myocardial processes have been linked to the intrinsic cardiomyocyte circadian clock. Triiodothyronine (T3) is an important modulator of heart metabolism and function. Recently, our group has reported time-of-day-dependent rhythms in cardiac T3 sensitivity, as well as, T3-mediated acute alterations on core clock components. Hypo and hyperthyroidism are the second most prevalent endocrine disease worldwide...
November 7, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28855863/thyroid-hormone-availability-and-action-during-brain-development-in-rodents
#3
Soledad Bárez-López, Ana Guadaño-Ferraz
Thyroid hormones (THs) play an essential role in the development of all vertebrates; in particular adequate TH content is crucial for proper neurodevelopment. TH availability and action in the brain are precisely regulated by several mechanisms, including the secretion of THs by the thyroid gland, the transport of THs to the brain and neural cells, THs activation and inactivation by the metabolic enzymes deiodinases and, in the fetus, transplacental passage of maternal THs. Although these mechanisms have been extensively studied in rats, in the last decade, models of genetically modified mice have been more frequently used to understand the role of the main proteins involved in TH signaling in health and disease...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28814251/the-role-of-radiopharmaceuticals-in-amiodarone-induced-thyroid-pathology
#4
Doina Piciu, Alexandru Irimie
Amiodarone is a di-iodinated benzofuran derivative and is classified as a class III antiarrhythmic agent. It is one of the most powerful and effective antiarrhythmics, being a first-line agent due to its ability to treat ventricular and supraventricular dysrhythmias; since 1960 the drug has become one of the most frequently prescribed antiarrhythmics, despite its potentially serious, side effects. By far, one of the most challenging condition is the thyroid pathology induced by this drug. Each 200 mg tablet of amiodarone contains approximately 75 mg of iodine, 3-10% from each tablet being released as free iodine...
August 16, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28796641/the-effect-of-thyroid-dysfunction-on-nesfatin-1-and-adiponectin-levels-in-rats
#5
Emine Atıci, Rasim Mogulkoc, Abdulkerim Kasım Baltaci, Esma Menevse
Background Changes in thyroid hormone concentrations may affect adiponectin concentrations through various mechanisms. A molecule released primarily from the fat cells adiposities; adiponectin has important effects on the regulation of body weight. Aim The present study aimed to explore the effects of experimental thyroid dysfunction and its treatment on nesfatin-1 and adiponectin levels in rats. Methods The study included 40 adult male Sprague-Dawley rats which were grouped as follows: (1) control; (2) hypothyroidism [hypothyroidism was induced by intraperitoneal injection of 10 mg/kg/day propylthiouracil (PTU) for 3 weeks]; (3) hypothyroidism + thyroxine group [after hypothyroidism was induced by 2-week PTU injection, they were treated with high-dose L-thyroxine (1...
August 10, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28782242/effects-of-hyper-and-hypothyroidism-on-the-development-and-proliferation-of-testicular-cells-in-prepubertal-rats
#6
Mohamed Babo Fadlalla, Quanwei Wei, Jaafar Sulieman Fedail, Asif Mehfooz, Dagan Mao, Fangxiong Shi
Thyroid hormones are important in the development and regulation of testes. This study was conducted to determine the effects of hyper- and hypothyroidism on testicular development in prepubertal rats aged 20-70 days. Weaning male rats (20 days old) until day 70 age were randomly divided into four groups: control, hyperthyroid (hyper-T), hypothyroid (hypo-T) and hypothyroid treated with thyroxine (T4) (hypo-T+T4). The results indicated that thyroid hormones caused a significant effect in body and testis weights, and food and water consumption...
August 7, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28732334/does-laser-phototherapy-influence-the-proliferation-of-myoepithelial-cells-in-the-salivary-gland-of-hypothyroid-rats
#7
Virgínia Dias Uzêda-E-Silva, Tania Tavares Rodriguez, Luciana Maria Pedreira Ramalho, Flávia Calo Aquino Xavier, Isabele Cardoso Vieira de Castro, Antônio Luiz Barbosa Pinheiro, Jean Nunes Dos Santos
Thyroid hormones influence both development and growth of organs and tissues and guarantee metabolic demands that interfere with the quality of digestive secretions, including those of the salivary glands. Laser phototherapy - LPT can modulate various biological phenomena and its diverse effects permit the action on different cell types. The aim of this study was to evaluate the influence of laser phototherapy on myoepithelial cells of salivary glands of hypothyroid rats. Forty-two albino Wistar rats were divided into two main groups: euthyroid (EU) and hypothyroid (HYPO)...
August 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28720762/quantitative-measurement-of-the-thyroid-uptake-function-of-mouse-by-cerenkov-luminescence-imaging
#8
Chien-Chih Ke, Zi-Ming He, Ya-Ju Hsieh, Chia-Wen Huang, Jia-Je Li, Luen Hwu, Yi-An Chen, Bang-Hung Yang, Chi-Wei Chang, Wen-Sheng Huang, Ren-Shyan Liu
Cerenkov luminescence imaging (CLI) has been an evolutional and alternative approach of nuclear imaging in basic research. This study aimed to measure the (131)I thyroid uptake of mouse using CLI for assessment of thyroid function. Quantification of (131)I thyroid uptake of mice in euthyroid, hypothyroid and hyperthyroid status was performed by CLI and γ-scintigraphy at 24 hours after injection of (131)I. The (131)I thyroid uptake was calculated using the equation: (thyroid counts - background counts)/(counts of injected dose of (131)I) × 100%...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28715040/-taste-dysfunction-dysgeusia-and-radioiodine-therapy-of-thyroid-cancer-be-aware-of-side-effects-by-antidepressants-and-sedatives
#9
Markus Dietlein, Alexander Drzezga
In addition to xerostomia, taste dysfunction (hypo-, dysgeusia) is an independent side effect of radioiodine therapy of thyroid cancer. Hypogeusia results from damage of the small mucous salivary glands in the vicinity of the taste buds. Particularly in those patients, who are treated with drugs such as antidepressants or sedatives, taste dysfunction becomes frequently clinically symptomatic. If feasible, therapy regimens bearing a potential risk for taste dysfunction should be switched. Additional damage to taste function should be minimalized, including cessation of smoking, change of agents for dental hygiene, and change of toothpaste...
July 17, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28683860/latent-hypothyroidism-in-adults
#10
Jeannine Schübel, Joachim Feldkamp, Antje Bergmann, Wolfgang Drossard, Karen Voigt
BACKGROUND: The prevalence of latent/subclinical hypothyroidism is between 3% and 10%, according to epidemiologic studies that have been carried out in the USA, the United Kingdom, and Denmark. As persons with latent hypo - thyroidism are often asymptomatic, the diagnosis is often made incidentally in routine laboratory testing. METHODS: This review is based on a selective search in PubMed for publications on the diagnosis and treatment of latent hypothyroidism...
June 23, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28673339/human-limbal-fibroblast-like-stem-cells-induce-immune-tolerance-in-autoreactive-t-lymphocytes-from-female-patients-with-hashimoto-s-thyroiditis
#11
Antonina Coppola, Laura Tomasello, Maria Pitrone, Salvatore Cillino, Pierina Richiusa, Giuseppe Pizzolanti, Carla Giordano
BACKGROUND: Due to their "natural immune privilege" and immunoregulatory properties human fibroblast-like limbal stem cells (f-LSCs) have acquired great interest as a potential tool for achieving immunotolerance. Hashimoto's thyroiditis (HT) is the most common thyroid autoimmune disease and cause of hypothyroidism. To date, conventional hormone replacement therapy and unspecific immunosuppressive regimens cannot provide a definitive cure for HT subjects. We explored the immunosuppressant potential of human f-LSCs on circulating lymphomonocytes (PBMCs) collected from healthy donors and female HT patients...
July 3, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28623469/association-between-giant-cell-arteritis-and-thyroid-dysfunction-in-a-real-life-population
#12
Yarden Yavne, Shmuel Tiosano, Abdulla Watad, Doron Comaneshter, Yehuda Shoenfeld, Arnon D Cohen, Howard Amital
PURPOSE: Giant cell arteritis is a systemic autoimmune disorder which involves inflammation of medium to large vessels. The association between giant cell arteritis and autoimmune thyroid disorders has been investigated numerous times in the literature with inconsistent results. Our objective was to evaluate whether a genuine association exists between giant cell arteritis and thyroid dysfunction, which is often due to immune-mediated thyroid disease. METHODS: Utilizing the medical database of Clalit Health Services, we compared the proportion of hypo and hyperthyroidisim between patients with giant cell arteritis and age-matched and gender-matched controls in a cross-sectional study...
August 2017: Endocrine
https://www.readbyqxmd.com/read/28521834/incidence-of-total-hip-or-knee-replacement-due-to-osteoarthritis-in-relation-to-thyroid-function-a-prospective-cohort-study-the-nord-tr%C3%A3-ndelag-health-study
#13
Alf Inge Hellevik, Marianne Bakke Johnsen, Arnulf Langhammer, Anne Marie Fenstad, Ove Furnes, Kjersti Storheim, John Anker Zwart, Gunnar Flugsrud, Lars Nordsletten
BACKGROUND: To study whether thyroid function was associated with risk of hip or knee replacement due to primary osteoarthritis. METHODS: In a prospective cohort study, data from the second and third survey of the Nord-Trøndelag Health Study were linked to the Norwegian Arthroplasty Register in order to identify total hip or knee replacement as a result of primary osteoarthritis. RESULTS: Among 37 891 participants without previously known thyroid disease we recorded 978 total hip replacements (THRs) and 538 total knee replacements (TKRs) during a median follow-up time of 15...
May 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28472357/thyroid-dysfunction-and-autoimmune-thyroid-diseases-among-atomic-bomb-survivors-exposed-in-childhood
#14
Misa Imaizumi, Waka Ohishi, Eiji Nakashima, Nobuko Sera, Kazuo Neriishi, Michiko Yamada, Yoshimi Tatsukawa, Ikuno Takahashi, Saeko Fujiwara, Keizo Sugino, Takao Ando, Toshiro Usa, Atsushi Kawakami, Masazumi Akahoshi, Ayumi Hida
Context: The risk of thyroid cancer increases and persists for decades among individuals exposed to ionizing radiation in childhood, although the long-term effects of childhood exposure to medium to low doses of radiation on thyroid dysfunction and autoimmune thyroid diseases have remained unclear. Objective: To evaluate radiation dose responses for the prevalence of thyroid dysfunction and autoimmune thyroid disease among atomic bomb survivors exposed in childhood...
July 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28451576/thyroid-ultrasonography-in-differentiation-between-graves-disease-and-hashimoto-s-thyroiditis
#15
P Pishdad, G R Pishdad, S Tavanaa, R Pishdad, R Jalli
OBJECTIVE: Graves' disease and Hashimoto's thyroiditis are the most common causes of hyper and hypothyroidism, respectively. Differentiation of these 2 diseases, if the patient is euthyroid, may sometimes be extremely difficult on the basis of clinical and laboratory findings. The purpose of this study was to determine the sensitivity and specificity of gray scale sonography in differentiation of Graves' disease from Hashimoto's thyroiditis. METHODS: This study included 149 patients divided into three groups, patients with Graves' disease (34 patients, mean age = 36...
March 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28435326/the-association-between-thyroid-disorders-and-incident-gout-population-based-case-control-study
#16
Saskia G Bruderer, Christoph R Meier, Susan S Jick, Michael Bodmer
CONTEXT: Thyroid hormones influence kidney function and thereby might alter serum urate levels, a major risk factor for gouty arthritis. OBJECTIVE: To assess the risk of developing incident gout in association with hypothyroidism or hyperthyroidism. DESIGN: Retrospective population-based case-control analysis. SETTING: UK-based Clinical Practice Research Datalink, a primary care research database. PATIENTS: We identified adult patients with a diagnosis of incident gout between 1990 and 2014...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28257828/directional-thyroid-hormone-distribution-via-the-blood-stream-to-target-sites
#17
Susanne T Janssen, Onno E Janssen
Thyroid hormones are bound to three major serum transport proteins, thyroxin-binding globulin (TBG), transthyretin (TTR) and human serum albumin (HSA). TBG has the strongest affinity for thyroid hormones, TTR is also found in the cerebrospinal fluid and HSA is the most abundant protein in plasma. Combination defects of either a high affinity TTR or HSA variant do not compensate TBG deficiency, underscoring the dominant role of TBG among the thyroid hormone transport proteins. On the other hand, coexistence of raised affinity TTR and HSA variants causes an augmented hyperthyroxinemia...
February 28, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28242086/ultrasound-image-classification-of-ductal-carcinoma-in-situ-dcis-of-the-breast-analysis-of-705-dcis-lesions
#18
Takanori Watanabe, Takuhiro Yamaguchi, Hiroko Tsunoda, Setsuko Kaoku, Eriko Tohno, Hidemitsu Yasuda, Kanako Ban, Koichi Hirokaga, Kumiko Tanaka, Takeshi Umemoto, Toshitaka Okuno, Yasuhisa Fujimoto, Shuichi Nakatani, Jun Ito, Ei Ueno
The Japan Association of Breast and Thyroid Sonology (JABTS) proposed, in 2003, a conceptual classification system for non-mass abnormalities to be applied in addition to the conventional concept of masses, to facilitate detecting ductal carcinoma in situ (DCIS) lesions. The aim of this study was to confirm the utility of this system and to clarify the distribution of these findings in DCIS lesions. Data on 705 surgically treated DCIS lesions from 16 institutions in Japan were retrospectively reviewed. All 705 DCIS lesions could be classified according to the JABTS classification system...
May 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28217494/effects-of-thyroid-status-on-glycated-hemoglobin
#19
Rana Bhattacharjee, Anubhav Thukral, Partha Pratim Chakraborty, Ajitesh Roy, Soumik Goswami, Sujoy Ghosh, Pradip Mukhopadhyay, Satinath Mukhopadhyay, Subhankar Chowdhury
INTRODUCTION: Glycated hemoglobin (HbA1c) can be altered in different conditions. We hypothesize that HbA1c levels may change due to altered thyroid status, possibly due to changes in red blood cell (RBC) turnover. OBJECTIVES: The objective of this study was to determine the effects of altered thyroid status on HbA1c levels in individuals without diabetes, with overt hyper- and hypo-thyroidism, and if present, whether such changes in HbA1c are reversed after achieving euthyroid state...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28205670/leptin-and-ghrelin-concentration-in-hyperthyroid-cats-before-and-after-radioactive-iodine-therapy-compared-to-euthyroid-control-cats
#20
Sina Marsilio, Barbara Glanemann, Lucile Martin, Balazs Szladovits, Reto Neiger
OBJECTIVE: Leptin and ghrelin, two peptide hormones with antagonistic effects on satiety and energy balance, could be involved in the pathogenesis of weight loss and polyphagia in cats with hyperthyroidism. Leptin generally decreases appetite and increases energy expenditure, while ghrelin exerts the opposite effects. MATERIALS AND METHODS: Leptin and ghrelin were measured in 42 client owned hyperthyroid cats with a body condition score (BCS) ≤ 5/9 before (T0) and 4 weeks after radioactive iodine treatment (RAIT) (T1)...
April 19, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
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