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clinical thyroid function test

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https://www.readbyqxmd.com/read/28523891/neonatal-endocrinologic-problems-in-collodion-babies
#1
Ahmet Ozdemir, Sabriye Korkut, Selim Kurtoglu, Nihal Hatipoglu, Tamer Gunes, Mehmet Adnan Ozturk
OBJECTIVES: To identify endocrinologic problems, particularly those concerning growth, in collodion babies (CBs). METHODS: Clinically identified newborn CBs were included in the study group (group 1). Because CBs are generally born premature, small for gestational age (SGA), or both, a control group matched to the study group in terms of gestational age and birthweight (group 2) was also established. Blood specimens were collected from both groups for thyroid function tests and to measure serum growth hormone (GH), insulinlike growth factor 1 (IGF-1) and IGF binding protein-3 (IGFBP-3) levels...
May 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28522444/harmonization-of-serum-thyroid-stimulating-hormone-measurements-paves-the-way-for-the-adoption-of-a-more-uniform-reference-interval
#2
Linda M Thienpont, Katleen Van Uytfanghe, Linde A C De Grande, Dries Reynders, Barnali Das, James D Faix, Finlay MacKenzie, Brigitte Decallonne, Akira Hishinuma, Bruno Lapauw, Paul Taelman, Paul Van Crombrugge, Annick Van den Bruel, Brigitte Velkeniers, Paul Williams
BACKGROUND: The IFCC Committee for Standardization of Thyroid Function Tests developed a global harmonization approach for thyroid-stimulating hormone measurements. It is based on a multiassay method comparison study with clinical serum samples and target setting with a robust factor analysis method. Here we describe the Phase IV method comparison and reference interval (RI) studies conducted with the objective to recalibrate the participating assays and demonstrate the proof-of-concept...
May 18, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28511377/an-analysis-of-dynamic-pulmonary-functions-of-hypothyroid-patients
#3
Seethalakshmi Krishna Iyer, Sunil K Menon, Biju Bahuleyan
INTRODUCTION: Hypothyroidism is a silent epidemic of our times. In India, the prevalence of hypothyroidism is 11%. The effect of hypothyroidism on respiratory system is debatable with studies suggesting both obstructive and restrictive disease patterns. The symptoms range from mild dyspnoea to life-threatening respiratory failure. This study emphasizes the effect of hypothyroidism on dynamic respiratory functions. AIM: To find out the changes in dynamic respiratory functions (FVC, FEV1, FEV1% and PEFR) in both male and female hypothyroid patients within age group of 18-45 years...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28498808/restoration-of-p53-using-the-novel-mdm2-p53-antagonist-apg115-suppresses-dedifferentiated-papillary-thyroid-cancer-cells
#4
Haibo Chen, Dingyuan Luo, Lin Zhang, Xiaofeng Lin, Qiuyun Luo, Hanjie Yi, Jing Wang, Xianglei Yan, Baoxia Li, Yuelei Chen, Xingguang Liu, Hong Zhang, Sheng Liu, Miaozhen Qiu, Dajun Yang, Ningyi Jiang
Dedifferentiated papillary thyroid cancer (DePTC) is characterized by aggressive growth, recurrence, distant metastasis, and resistance to radioactive iodine (RAI) therapy. DePTC is also accompanied by poor prognosis and high early-mortality. Nevertheless, most DePTC cells show intact p53 downstream functionality. In cells with wild-type p53, the murine double minute2 (MDM2) protein interacts with p53 and abrogates its activity. Inhibition of the MDM2-p53 interaction restores p53 activity and leads to cell cycle arrest and apoptosis...
April 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28498633/how-does-radioactive-iodine-affect-the-nose
#5
Ela Araz Server, Tolga Kirgezen, Ozlem Onerci Celebi, Muhammet Yildiz, Ozgur Yigit, Tevfik Fikret Cermik
OBJECTIVES/HYPOTHESIS: To determine the effect of radioactive iodine (RAI) treatment on the nasal mucosa and nasal functions. STUDY DESIGN: Prospective clinical study. METHODS: This study included 41 patients (31 female and 10 male) who were treated with RAI for papillary thyroid carcinoma. A visual analogue scale (VAS) was used for subjective evaluation of nasal symptoms. The saccharine test, nasal Schirmer test, and acoustic rhinometry were used for objective evaluation of nasal functions...
May 12, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28493284/prognostic-value-of-preoperative-anti-thyroglobulin-antibody-in-differentiated-thyroid-cancer
#6
Kwanhoon Jo, Min-Hee Kim, Jeonghoon Ha, Yejee Lim, Sohee Lee, Ja Seong Bae, Chan Kwon Jung, Moo Il Kang, Bong Yun Cha, Dong-Jun Lim
CONTEXT: The coexistence of differentiated thyroid cancer (DTC) and thyroid autoimmune disease could represent a better or worse prognosis. This study investigated the prognostic importance of preoperative anti-thyroglobulin antibody (TgAb) in DTC patients. DESIGN AND PATIENTS: This retrospective hospital-cohort study enrolled 1,171 consecutive DTC patients with preoperative TgAb data, who underwent total thyroidectomy between January 2006 and December 2011. Clinical parameters studied included demographics, primary tumor characteristics, radioiodine therapy, thyroid function tests, preoperative thyroglobulin (Tg) and TgAb levels, and cancer persistence/recurrence...
May 10, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28490181/annals-express-designing-and-evaluating-autoverification-rules-for-thyroid-function-profiles-and-sex-hormone-tests
#7
Jiancheng Li, Bizhen Cheng, Huizhen Ouyang, Tongtong Xiao, Jing Hu, Yingmu Cai
PURPOSE: Following the analytical phase, the current practice of many hospital laboratories involves the manual verification of all test results followed by the production of the report. However, manual verification is a time-consuming and tedious process. In this paper, we provide a detailed description of how to design autoverification rules for thyroid function test profiles and sex hormones. MaterialsandMethods: We used DM2 (Data manager 2) to construct the algorithm and build the database for autoverification of thyroid function test profiles and sex hormones, with reference to Boolean logic, Auto-10A and CLSI'88...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28482002/thyroid-function-tests-in-the-reference-range-and-fracture-individual-participant-analysis-of-prospective-cohorts
#8
Carole E Aubert, Carmen Floriani, Douglas C Bauer, Bruno R da Costa, Daniel Segna, Manuel R Blum, Tinh-Hai Collet, Howard A Fink, Anne R Cappola, Lamprini Syrogiannouli, Robin P Peeters, Bjørn O Åsvold, Wendy Pj den Elzen, Robert N Luben, Alexandra P Bremner, Apostolos Gogakos, Richard Eastell, Patricia M Kearney, Mari Hoff, Erin Le Blanc, Graziano Ceresini, Fernando Rivadeneira, André G Uitterlinden, Kay-Tee Khaw, Arnulf Langhammer, David J Stott, Rudi Gj Westendorp, Luigi Ferrucci, Graham R Williams, Jacobijn Gussekloo, John P Walsh, Drahomir Aujesky, Nicolas Rodondi
Context: Hyperthyroidism is associated with increased fracture risk, but it is not clear if lower TSH and higher free thyroxine (FT4) in euthyroid individuals are associated with fracture risk. Objective: To evaluate the association of TSH and FT4 with incident fractures in euthyroid individuals. Design: Individual participant data analysis. Setting: Thirteen prospective cohort studies with baseline examinations between 1981 and 2002...
May 5, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28471274/contrasting-phenotypes-in-resistance-to-thyroid-hormone-%C3%AE-correlate-with-divergent-properties-of-thyroid-hormone-receptor-%C3%AE-1-mutant-proteins
#9
Carla Moran, Maura Agostini, Anne McGowan, Erik Schoenmakers, Louise Fairall, Greta Lyons, Odelia Rajanayagam, Laura Watson, Amaka C Offiah, John Stephen Barton, Susan Price, John Wr Schwabe, V Krishna Chatterjee
BACKGROUND: Resistance to Thyroid Hormone alpha (RTHα), a disorder characterised by tissue-selective hypothyroidism and near-normal thyroid function tests due to thyroid receptor α gene mutations, is rare but probably underrecognised. We sought to correlate the clinical characteristics and response to thyroxine therapy in two adolescent RTHα patients with the properties of the <i>THRA</i> mutation, affecting both TRα1 and TRα2 proteins, they harboured. METHODS: Clinical, auxological, biochemical and physiological parameters were assessed in each patient at baseline and after thyroxine therapy...
May 4, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28469901/use-of-electronic-clinical-decision-support-and-hard-stops-to-decrease-unnecessary-thyroid-function-testing
#10
Sonia Dalal, Siddharth Bhesania, Steven Silber, Parag Mehta
NewYork-Presbyterian Brooklyn Methodist Hospital embarked on a Zero Unnecessary Study (ZEUS) initiative, whereby all aspects of clinical care were evaluated and strategies were implemented to mitigate waste. An opportunity was found in regards to thyroid function testing. It has been shown that certain TFTs are ordered far more often than clinically indicated. Free T3 (fT3) and Free T4 (fT4) are only indicated when the TSH is abnormal in the inpatient setting, with rare exceptions. Thus, a clinical algorithm for Clinical Decision Support (CDS) and Hard Stops (HS) were incorporated into the Electronic Medical Record (EMR) to prevent fT3 or fT4 to be ordered without an abnormal TSH, with certain predefined exceptions...
2017: BMJ Quality Improvement Reports
https://www.readbyqxmd.com/read/28460140/thyroid-function-variation-in-the-normal-range-energy-expenditure-and-body-composition-in-l-t4-treated-subjects
#11
Mary H Samuels, Irina Kolobova, Megan Antosik, Meike Niederhausen, Jonathan Q Purnell, Kathryn G Schuff
Purpose: It is not clear whether upper limits of the TSH reference range should be lowered. This debate can be better informed by investigation of whether variations in thyroid function within the reference range have clinical effects. Thyroid hormone plays a critical role in determining energy expenditure, body mass, and body composition, and therefore clinically relevant variations in these parameters may occur across the normal range of thyroid function. Methods: This was a cross-sectional study of 140 otherwise healthy hypothyroid subjects receiving chronic replacement therapy with levothyroxine (L-T4) who had TSH levels across the full span of the laboratory reference range (0...
April 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28428227/mechanisms-in-endocrinology-the-multiple-facets-of-gh-lessons-from-lifetime-untreated-isolated-gh-deficiency-due-to-ghrh-receptor-mutation
#12
Manuel Aguiar-Oliveira, Anita Ho Souza, Carla R Oliveira, Viviane C Campos, Luiz A Oliveira-Neto, Roberto Salvatori
Twenty years ago, we described a kindred of 105 individuals with isolated GH deficiency (IGHD) in Itabaianinha County, in Brazilian northeast, due to a homozygous mutation in the GH-releasing hormone receptor gene. These subjects exhibit markedly reduced GH responsiveness to stimulatory tests, and anterior pituitary hypoplasia. Serum concentrations of IGF-I, IGF binding protein type 3, and the acid-labile subunit are markedly reduced, with a lesser reduction of IGF-II. The most striking physical findings of these IGHD individuals are the proportionate short stature, doll facies, high-pitched voice, and visceral obesity with reduced fat free mass...
April 20, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28424174/the-clinical-value-of-regular-thyroid-function-tests-during-amiodarone-treatment
#13
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/28423638/her-inhibitor-promotes-braf-mek-inhibitor-induced-redifferentiation-in-papillary-thyroid-cancer-harboring-brafv600e
#14
Lingxiao Cheng, Yuchen Jin, Min Liu, Maomei Ruan, Libo Chen
Redifferentiation therapy with BRAF/MEK inhibitors to facilitate treatment with radioiodine represents a good choice for radioiodine-refractory differentiated thyroid carcinoma, but recent initial clinical outcomes were modest. MAPK rebound caused by BRAF/MEK inhibitors-induced activation of HER2/HER3 is a resistance mechanism, and combination with HER inhibitor to prevent MAPK rebound may sensitize BRAFV600E-mutant thyroid cancer cells to redifferentiation therapy. To evaluate if inhibiting both BRAF/MEK and HER can produce stronger redifferetiation effect, we tested the effects of BRAF/MEK inhibitor dabrafenib/selumetinib alone or in combination with HER inhibitor lapatinib on the expression and function of iodine- and glucose-handling genes in BRAFV600E-positive BCPAP and K1 cells, using BHP 2-7 cells harboring RET/PTC1 rearrangement as control...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407667/monitoring-thyroid-function-in-patients-on-levothyroxine-assessment-of-conformity-to-national-guidance-and-variability-in-practice
#15
Jonathan J Scargill, Mark Livingston, David Holland, Christopher J Duff, Anthony A Fryer, Adrian H Heald
With demand for endocrine tests steadily increasing year-on-year, we examined thyroid function test (TFT) frequencies in patients on levothyroxine replacement therapy to assess the effect of initial TFT results and request source on TFT re-testing interval. All TFTs performed by the Clinical Biochemistry Departments at the Salford Royal Hospital (2009-2012; 288 263 requests from 139 793 patients) and University Hospital of North Midlands (2011-2014; 579 156 requests from 193 035 patients) were extracted from the laboratory computer systems...
April 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28401443/prevalence-of-hypophysitis-in-a-cohort-of-patients-with-metastatic-melanoma-and-prostate-cancer-treated-with-ipilimumab
#16
Lucia Brilli, Riccardo Danielli, Cristina Ciuoli, Luana Calabrò, Anna Maria Di Giacomo, Alfonso Cerase, Patrizia Paffetti, Fausta Sestini, Brunetta Porcelli, Michele Maio, Furio Pacini
OBJECTIVE: Ipilimumab is a human monoclonal antibody directed against cytotoxic T-lymphocyte antigen-4, that has been shown to significantly improve survival in patients with metastatic melanoma. Blocking cytotoxic T-lymphocyte antigen-4 elicits T cell activation, proliferation and anti-tumor response, but can also trigger immune-related adverse events. Among immune-related endocrinopathies, hypophysitis represents the most frequent, with an incidence up to 17% in patients treated with ipilimumab...
April 12, 2017: Endocrine
https://www.readbyqxmd.com/read/28388869/annals-express-stimulating-tsh-receptor-autoantibodies-immunoassay-analytical-evaluation-and-clinical-performance-in-graves-disease
#17
Chiara Autilio, Renato Morelli, Pietro Locantore, Alfredo Pontecorvi, Cecilia Zuppi, Cinzia Carrozza
BACKGROUND: Thyroid stimulating hormone (TSH) receptor (TSHR) autoantibodies (TRAbs) are a heterogeneous group of antibodies (Abs) with different functionality. Among all TRAbs only the stimulating one (S-TRAbs) are considered the pathogenetic marker of Graves' Disease (GD). To date, the methods available for TRAbs testing are based on immunoassays (IMAs) which detect total serum TRAbs or bioassays which are not suitable in clinical practice, even though they discern Abs functionality...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28383405/association-of-microrna-related-gene-xpo5-rs11077-polymorphism-with-susceptibility-to-thyroid-cancer
#18
Jing Wen, Qingjun Gao, Nanpeng Wang, Wei Zhang, Kun Cao, Qiang Zhang, Shi Chen, Lixin Shi
Exportin 5 (XPO5) is a microRNA (miRNA)-related nuclear export protein, and its disorder may lead to the dysregulation of miRNAs. Recent studies have demonstrated that the aberrant expression of XPO5 might participate in carcinogenesis in certain cancers. However, there is only limited information of XPO5 in thyroid cancer (TC) development. In our study, we quantified the expression level of XPO5 by real-time polymerase chain reaction (PCR) in 64 TC patients' cancer tissues and adjacent normal tissues. After confirming the XPO5 expression, we evaluated the association between XPO5 potential functional single-nucleotide polymorphisms (SNPs) and risk of TC in a Chinese population (1140 cases vs 1230 controls)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28360783/the-relationship-between-aggression-and-serum-thyroid-hormone-level-in-individuals-diagnosed-with-antisocial-personality-disorder
#19
Alper Evrensel, Barış Önen Ünsalver, Aytekin Özşahin
INTRODUCTION: Aggression is one of the leading clinical characteristics of antisocial personality disorder (APD). Studies aiming to clarify and control the biological basis of aggression are ongoing. Thyroid hormones have been indicated to play a role in the development of aggression. The aim of this study was to examine the level of aggression and serum thyroid hormone in a sample of APD and to make contributions to this field with the current findings. METHODS: The sample consisted of 96 subjects with a diagnosis of APD and 97 subjects as a control group...
June 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28357106/persistent-arthralgia-vomiting-and-hypercalcemia-as-the-initial-manifestations-of-hyperthyroidism-a-case-report
#20
Jingfang Liu, Xulei Tang, Jianguo Cheng, Xiaomei Yang, Yan Wang
A 53-year-old woman presented with persistent edema and pain of the metacarpophalangeal and proximal interphalangeal joints and the wrist, knee and ankle joints, with more recent intermittent nausea and vomiting. Treatment for rheumatoid arthritis and osteoarthritis was ineffective. No clinical manifestations typical of hyperthyroidism were observed. The results of the thyroid function tests were as follows: Thyroid-stimulating hormone, 0.003 µIU/ml; triiodothyronine (T3), 4.44 ng/ml;, thyroxine (T4) >30 µg/dl; free T3, 14...
February 2017: Molecular and Clinical Oncology
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