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https://www.readbyqxmd.com/read/29777516/irisin-levels-increase-after-treatment-in-patients-with-newly-diagnosed-hashimoto-thyroiditis
#1
Z A Uc, S Gorar, S Mizrak, S Gullu
PURPOSE: Irisin is a newly identified myokine secreted by skeletal muscle and has significant effects on body metabolism. Thyroidal functional state has a profound influence on the metabolism of human body. Therefore, the aim of this study was to investigate the possible changes in serum irisin concentrations before and after treatment in hypothyroid subjects. METHODS: The study included 26 patients with overt hypothyroidism due to Hashimoto thyroiditis and 19 healthy subjects...
May 18, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29777468/van-wyk-grumbach-syndrome-a-rare-consequence-of-hypothyroidism
#2
Pavan Reddy, Kritika Tiwari, Abhishek Kulkarni, Ketan Parikh, Raju Khubchandani
Long standing hypothyroidism presenting as an ovarian mass has been well described in literature as the Van Wyk Grumbach syndrome (hypothyroidism, isosexual precocious puberty and ovarian mass). Here, authors report this entity in a 11 y 7 mo old girl child who was referred to a surgeon in view of intestinal obstruction along with a multiloculated ovarian cyst. On evaluation, she was found to have raised serum creatinine, short stature, delayed bone age and pituitary enlargement. She was diagnosed with autoimmune thyroiditis and was started on replacement therapy with thyroxine, after which the ovarian cysts regressed...
May 19, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29777250/prevalence-of-temporomandibular-disorders-in-patients-with-hashimoto-thyroiditis
#3
Alina Grozdinska, Elisabeth Hofmann, Matthias Schmid, Ursula Hirschfelder
OBJECTIVES: Autoimmune thyroid disease (AITD), also known as Hashimoto thyroiditis (HT), is a degenerative inflammatory disease with high prevalence among women and has been associated with fibromyalgia and widespread chronic pain. The goal was to determine the frequency of temporomandibular disorders (TMD) in patients with HT. METHODS: In all, 119 women (age 19-60 years) were divided into a study (52 women diagnosed with HT) and a control (67 healthy individuals, of which 15 were excluded) group...
May 17, 2018: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29776390/development-of-a-normal-tissue-complication-probability-ntcp-model-for-radiation-induced-hypothyroidism-in-nasopharyngeal-carcinoma-patients
#4
Ren Luo, Vincent W C Wu, Binghui He, Xiaoying Gao, Zhenxi Xu, Dandan Wang, Zhining Yang, Mei Li, Zhixiong Lin
BACKGROUND: The objectives of this study were to build a normal tissue complication probability (NTCP) model of radiation-induced hypothyroidism (RHT) for nasopharyngeal carcinoma (NPC) patients and to compare it with other four published NTCP models to evaluate its efficacy. METHODS: Medical notes of 174 NPC patients after radiotherapy were reviewed. Biochemical hypothyroidism was defined as an elevated level of serum thyroid-stimulating hormone (TSH) value with a normal or decreased level of serum free thyroxine (fT4) after radiotherapy...
May 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29772544/antigen-specific-therapy-of-graves%C3%A2-disease-and-orbitopathy-by-induction-of-tolerance
#5
Martin Ungerer, Julia Fabbender, Hans-Peter Holthoff
Graves´ disease is an autoimmune disorder, which is characterized by stimulatory antibodies targeting the human thyrotropin receptor (TSHR), resulting in hyperthyroidism and multiple organ damage. The disease can be modelled in mice using adenoviral immunizations with the extracellular A subunit of the TSHR, which induces a long-term stable disease state. TSHR binding cAMP-stimulatory antibodies, thyroid enlargement, elevated serum thyroxin levels, tachycardia, cardiac hypertrophy and orbitopathy are observed in these Ad-TSHR-immunized mice...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29768692/prevalence-of-subclinical-hypothyroidism-in-obese-children-or-adolescents-and-association-between-thyroid-hormone-and-the-components-of-metabolic-syndrome
#6
Hye Young Jin
AIM: Subclinical hypothyroidism is defined as elevated thyroid-stimulating hormone (TSH) levels with the normal concentrations of thyroxine (T4) or free thyroxine (fT4), and its clinical significance is unclear. The purpose of this study is to investigate the prevalence of subclinical hypothyroidism in children and adolescents and determine the relationship between lipid profiles, insulin resistance and thyroid hormones. METHODS: A retrospective, cross-sectional study was performed using data from a subset of the KNHANES VI...
May 16, 2018: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29767680/propensity-for-adverse-pregnancy-outcomes-in-african-american-women-may-be-explained-by-low-energy-expenditure-in-early-pregnancy
#7
Jasper Most, L Anne Gilmore, Abby D Altazan, Marshall St Amant, Robbie A Beyl, Eric Ravussin, Leanne M Redman
Background: African-American (AA) women have poorer pregnancy outcomes and studies in nonpregnant women suggest a different etiology of weight gain in AA compared with white women. We hypothesized that physiologic factors such as low energy expenditure and physical activity would be present in AA compared with white women in pregnancy. Objective: We aimed to identify physiologic risk factors for disordered energy balance in AA and white women early in pregnancy...
May 14, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29766681/evaluation-of-thyroid-hormone-levels-and-urinary-iodine-concentrations-in-koreans-based-on-the-data-from-korea-national-health-and-nutrition-examination-survey-vi-2013-to-2015
#8
REVIEW
Jae Hoon Chung
No nationwide data have been published about thyroid hormone levels and urinary iodine concentrations (UICs) in Korea. The Korea Centers for Disease Control and Prevention and the Korean Thyroid Association established a project to evaluate the nationwide thyroid hormone profile and UICs in healthy Koreans as part of the Korea National Health and Nutrition Examination Survey (KNHANES) VI (2013 to 2015), a nationwide, cross-sectional survey of the Korean population that enrolled 7,061 individuals who were weighted to represent the entire Korean population...
May 4, 2018: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29762727/development-of-targeted-therapy-and-immunotherapy-for-treatment-of-small-cell-lung-cancer
#9
Motonobu Saito, Kouya Shiraishi, Akiteru Goto, Hiroyuki Suzuki, Takashi Kohno, Koji Kono
Targeted therapy against druggable genetic aberrations has shown a significantly positive response rate and longer survival in various cancers, including lung cancer. In lung adenocarcinoma (LADC), specific thyroxin kinase inhibitors against EGFR mutations and ALK fusions are used as a standard treatment regimen and show significant positive efficacy. On the other hand, targeted therapy against driver gene aberrations has not been adapted yet in small cell lung cancer (SCLC). This is because driver genes and druggable aberrations are rarely identified by next generation sequencing in SCLC...
May 14, 2018: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29762250/abnormal-expression-of-ephrin-a5-affects-brain-development-of-congenital-hypothyroidism-rats
#10
Guihai Suo, Feifei Shen, Baolan Sun, Honghua Song, Meiyu Xu, Youjia Wu
EphA5 and its ligand ephrin-A5 interaction can trigger synaptogenesis during early hippocampus development. We have previously reported that abnormal EphA5 expression can result in synaptogenesis disorder in congenital hypothyroidism (CH) rats. To better understand its precise molecular mechanism, we further analyzed the characteristics of ephrin-A5 expression in the hippocampus of CH rats. Our study revealed that ephrin-A5 expression was downregulated by thyroid hormone deficiency in the developing hippocampus and hippocampal neurons in rats...
May 14, 2018: Neuroreport
https://www.readbyqxmd.com/read/29761770/-combination-therapy-of-thyroxine-and-triiodothyronine-in-hypothyroid-patients
#11
Birte Nygaard, Michael E Røder, Jesper Karmisholt, Jette Kolding Kristensen
Decreased quality of life is described more often in hypothyroid patients, who are treated with a synthetic form of thyroxine (L-T4), than in euthyroid controls. A combination of L-T4 and a synthetic form of triiodothyronine (L-T3) has been suggested; however, previous meta-analyses on unselected patients did not find any effect. Recent studies demonstrate, that the overall hypothalamic-pituitary-thyroid-tissue homeostasis could be more complex than previously suggested. Polymorphisms in deiodinase and thyroid hormone transporter genes could theoretically explain, why a minor subgroup of hypothyroid patients seem to have an effect of L-T4/L-T3 combination therapy...
May 7, 2018: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/29761487/the-phytoestrogen-genistein-prevents-trabecular-bone-loss-and-affects-thyroid-follicular-cells-in-a-male-rat-model-of-osteoporosis
#12
Branko Filipović, Branka Šošić-Jurjević, Vladimir Ajdžanović, Jasmina Živanović, Milica Manojlović-Stojanoski, Nataša Nestorović, Nataša Ristić, Svetlana Trifunović, Verica Milošević
As a major phytoestrogen of soy, genistein effectively prevents bone loss in both humans and rat models of osteoporosis. However, although the bone-sparing effects of genistein are achieved directly through estrogen receptors, its mode of action on bone by modulation of other endocrine functions is not entirely clear. Thus, thyroid hormones and calcitonin (CT) have an essential influence on bone metabolism. Besides its action on bones, in this study we examined the effect of genistein on the activity of two different endocrine cell populations, thyroid follicular and C-cells...
May 14, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29760914/gas-stunning-with-co-2-affected-meat-color-lipid-peroxidation-oxidative-stress-and-gene-expression-of-mitogen-activated-protein-kinases-glutathione-s-transferases-and-cu-zn-superoxide-dismutase-in-the-skeletal-muscles-of-broilers
#13
Lei Xu, Haijun Zhang, Hongyuan Yue, Shugeng Wu, Haiming Yang, Zhiyue Wang, Guanghai Qi
Background: Meat color and lipid peroxidation are important traits related to meat quality. CO2 concentration is a critical factor that can affect meat quality in the commercial use of gas stunning (GS). However, the effect and mechanism of CO2 stunning on meat color and lipid peroxidation during long-term storage remain poorly studied. We aimed to study the effects of GS methods, especially CO2 concentration, on meat color and meat lipid peroxidation in broilers during long-term storage at 4 °C and to explore the potential mechanism of meat color change via lipid peroxidation and the inner lipid peroxide scavenging system...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29760680/disruption-in-thyroid-signaling-pathway-a-mechanism-for-the-effect-of-endocrine-disrupting-chemicals-on-child-neurodevelopment
#14
REVIEW
Akhgar Ghassabian, Leonardo Trasande
Thyroid hormones are crucial in normal brain development. Transient and mild thyroid hormone insufficiency in pregnancy is also associated with impaired neurodevelopment in the offspring (e.g., 3-4 IQ score loss in association with maternal free thyroxine in the lowest fifth percentile). While inadequate iodine intake remains the most common underlying cause of mild thyroid hormone insufficiency in vulnerable populations including pregnant women, other factors such as exposure to environmental contaminants have recently attracted increasing attention, in particular in interaction with iodine deficiency...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29757392/thyroid-function-in-early-pregnancy-child-iq-and-autistic-traits-a-meta-analysis-of-individual-participant-data
#15
Deborah Levie, Tim I M Korevaar, Sarah C Bath, Albert Dalmau-Bueno, Mario Murcia, Mercedes Espada, Mariana Dineva, Jesús M Ibarluzea, Jordi Sunyer, Henning Tiemeier, Marisa Rebagliato, Margaret P Rayman, Robin P Peeters, Mònica Guxens
Context: Low maternal free thyroxine (FT4) has been associated with poor child neurodevelopment in some single-centre studies. Evidence remains scarce for potential adverse effects of high FT4 and whether associations differ in countries with a different iodine status. Objective: To assess the association of maternal thyroid function in early pregnancy with child neurodevelopment in countries with a different iodine status. Design, Setting and Participants: Meta-analysis of individual-participant data compromising 9,036 mother-child pairs from three prospective population-based birth cohorts: INMA (Spain), Generation R (The Netherlands) and ALSPAC (United Kingdom)...
May 10, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29755326/transient-hypothyroidism-during-lactation-arrests-myelination-in-the-anterior-commissure-of-rats-a-magnetic-resonance-image-and-electron-microscope-study
#16
Federico S Lucia, Jesús Pacheco-Torres, Susana González-Granero, Santiago Canals, María-Jesús Obregón, José M García-Verdugo, Pere Berbel
Thyroid hormone deficiency at early postnatal ages affects the cytoarchitecture and function of neocortical and telencephalic limbic areas, leading to impaired associative memory and in a wide spectrum of neurological and mental diseases. Neocortical areas project interhemispheric axons mostly through the corpus callosum and to a lesser extent through the anterior commissure (AC), while limbic areas mostly project through the AC and hippocampal commissures. Functional magnetic resonance data from children with late diagnosed congenital hypothyroidism and abnormal verbal memory processing, suggest altered ipsilateral and contralateral telencephalic connections...
2018: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29754217/investigation-of-factors-influencing-radioiodine-131-i-biokinetics-in-patients-with-benign-thyroid-disease-using-nonlinear-mixed-effects-approach
#17
Valentina Topić Vučenović, Zvezdana Rajkovača, Dijana Jelić, Dragi Stanimirović, Goran Vuleta, Branislava Miljković, Katarina Vučićević
PURPOSE: Radioiodine (131 I) therapy is the common treatment option for benign thyroid diseases. The objective of this study was to characterize 131 I biokinetics in patients with benign thyroid disease and to investigate and quantify the influence of patients' demographic and clinical characteristics on intra-thyroidal 131 I kinetics by developing a population model. METHODS: Population pharmacokinetic analysis was performed using a nonlinear mixed effects approach...
May 13, 2018: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29754056/nitric-oxide-is-involved-in-the-hypothyroidism-with-significant-morphology-changes-in-female-wistar-rats-induced-by-chronic-exposure-to-high-water-iodine-from-potassium-iodate
#18
Shengzhong Rong, Yanhui Gao, Yanmei Yang, Hanwen Shao, Akinkunmi Paul Okekunle, Chunpeng Lv, Yang Du, Hongna Sun, Yuting Jiang, Gottfried M Darko, Dianjun Sun
Epidemiological studies indicated that chronic exposure to high water iodine is associated with primary hypothyroidism (PH) and subclinical hypothyroidism (SCH). However, the mechanism is not well understood. In this study, we explored whether chronic exposure to high water iodine from potassium iodate (KIO3 ) can induce hypothyroidism in addition to determining if nitric oxide (NO) is involved in the pathogenesis. 96 female Wistar rats were divided into six groups: control, I1000μg/L , I3000μg/L , I6000μg/L , N-nitro-L-arginine methylester (L-NAME) and L-NAME+I6000μg/L ...
May 3, 2018: Chemosphere
https://www.readbyqxmd.com/read/29751674/comparative-analysis-of-zearalenone-effects-on-thyroid-receptor-alpha-tr%C3%AE-and-beta-tr%C3%AE-expression-in-rat-primary-cerebellar-cell-cultures
#19
David Sandor Kiss, Eniko Ioja, Istvan Toth, Zoltan Barany, Gergely Jocsak, Tibor Bartha, Tamas L Horvath, Attila Zsarnovszky
Thyroid receptors play an important role in postnatal brain development. Zearalenone (ZEN), a major mycotoxin of Fusarium fungi, is well known to cause serious health problems in animals and humans through various mechanisms, including the physiological pathways of thyroid hormone (TH). In the present study, we aimed to investigate the expression of thyroid receptors α (TRα) and β (TRβ) in primary cerebellar neurons in the presence or absence of glia and following ZEN treatment, using quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and Western blot...
May 11, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29751429/association-of-prenatal-exposure-to-pcdd-fs-and-pcbs-with-maternal-and-infant-thyroid-hormones-the-hokkaido-study-on-environment-and-children-s-health
#20
Toshiaki Baba, Sachiko Ito, Motoyuki Yuasa, Eiji Yoshioka, Chihiro Miyashita, Atsuko Araki, Seiko Sasaki, Sumitaka Kobayashi, Jumboku Kajiwara, Tsuguhide Hori, Shizue Kato, Reiko Kishi
Polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and biphenyls (PCBs) are persistent organic pollutants that are universally detected. Some congeners of PCDDs, PCDFs or PCBs have dioxin-like toxicity, whereas non-dioxin-like PCBs are considered to have different toxicity. Reports of the relationships between prenatal exposure to PCDDs, PCDFs or PCBs and thyroid homeostasis in pregnant women and infants have been inconsistent. The aim of this study was to investigate the effect of maternal serum PCDD/F or PCB levels on maternal and neonatal thyroid hormone (TH) levels in a prospective cohort...
February 15, 2018: Science of the Total Environment
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