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Thyrotropin

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https://www.readbyqxmd.com/read/28792688/uncritical-request-of-thyroid-laboratory-tests-may-result-in-a-major-societal-economic-burden-results-from-a-large-population-study-in-spain
#1
Maria Salinas, Maite Lopez-Garrigos, Emilio Flores, Carlos Leiva-Salinas
BACKGROUND: Our aim is to study the regional variability in the request of thyroid laboratory tests from primary care facilities in Spain and to investigate a potential inappropriate request and its economic societal impact. METHODS: Spain is divided into 17 autonomous communities (AACCs) which are in turn divided in Health Departments that cover a geographic area and its population and a laboratory that attends the needs of every inhabitant. Each participating laboratory was required to report the number of thyroid tests requested from primary care during year 2014 and to provide organizational data...
July 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28782601/metabolomic-profile-in-hyperthyroid-patients-before-and-after-antithyroid-drug-treatment-correlation-with-thyroid-hormone-and-tsh-concentration
#2
Cristina Piras, Nicolò Arisci, Simone Poddighe, Sonia Liggi, Stefano Mariotti, Luigi Atzori
Hyperthyroidism (HT) is characterized by an intense metabolic impact which affects the lipid, carbohydrate and amino acids metabolism, with increased resting energy expenditure and thermogenesis. Metabolomics is a new comprehensive technique that allows to capture an instant metabolic picture of an organism, reflecting peculiar molecular and pathophysiological states. The aim of the present prospective study was to identify a distinct metabolomic profile in HT patients using (1)H NMR spectroscopy before and after antithyroid drug treatment...
August 4, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28763301/application-of-povidone-iodine-at-delivery-significantly-increases-maternal-urinary-iodine-but-not-neonatal-thyrotropin-in-an-area-with-iodine-sufficiency
#3
Majid Valizadeh, Pantea Nazeri, Farzaneh Fazli, Farnaz Mohammadian, Sadreddin Kalantari, Koorosh Kamali, Hesam Osali
BACKGROUND: The aim of the present study was to investigate the effect of povidone-iodine (PVP-I) application at delivery on maternal urinary iodine concentration (UIC) and neonatal thyrotropin concentration. METHODS: In this cross-sectional study, urine samples were collected from each pregnant woman after admission to the hospital and before routine application of the PVP-I for delivery preparation and after delivery at time of screening for congenital hypothyroidism...
August 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28757214/vulnerability-of-marsh-frog-pelophylax-ridibundus-to-the-typical-wastewater-effluents-ibuprofen-triclosan-and-estrone-detected-by-multi-biomarker-approach
#4
Halina I Falfushynska, Lesya L Gnatyshyna, Oksana Horyn, Oksana B Stoliar
Pharmaceutical and personal care products (PPCPs) are the environmental pollutants of growing concern. The aim of this study was to indicate the effects of typical PPCPs on the marsh frog Pelophylax ridibundus. We treated male frogs with waterborne ibuprofen (IBU, 250ng·L(-1)), triclosan (TCS, 500ng·L(-1)), or estrone (E1, 100ng·L(-1)) for 14days. Common vulnerability of the frogs was detected from dramatic decrease of Zn, total and metalated metallothionein (MT) concentrations, Zn/Cu ratio, the elevation of activity of glutathione-S-transferase, cathepsin D and DNA instability in the liver, the depletion of cholinesterase in the brain and cortisol in the blood plasma in all exposures...
July 27, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28748990/-clinical-features-of-patients-with-basedow-graves-disease-seen-at-a-university-hospital
#5
Alejandra Lanas, Patricia Díaz, Daniela Eugenin, Franco González, Pía Cid, Francisco Cordero, Verónica Araya, Claudio Liberman, Marcela Barberan, Patricio Gac, Neil Saldías, Pedro Pineda
BACKGROUND: Basedow Graves disease (BGD) is the leading cause of hyperthyroidism. The characteristics of patients seen at a university hospital may differ from those described in the general population. AIM: To describe the clinical features of patients with BGD seen at a university hospital. MATERIAL AND METHODS: Review of medical records of all patients seen at our hospital between 2009 and 2014 with the diagnosis of thyrotoxicosis, hyperthyroidism or BGD...
April 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28741655/treatment-of-a-thyrotropin-secreting-pituitary-adenoma-tsh-oma-with-pasireotide-lar-case-report
#6
Marlise E A van Eersel, Susanne H Meeuwisse-Pasterkamp, Anneke C Muller Kobold, Linda C Meiners, Wilfred F den Dunnen, Leo J Hofland, Gerrit van den Berg
Thyrotropin (TSH)-secreting pituitary adenomas (TSH-oma) are rare and account for about 0.5-3% of all pituitary adenomas. Patients with TSH-oma present themselves mostly with central hyperthyroidism expressing increased circulating levels of TSH, free T4 and T3.(1) TSH-omas are usually benign tumours and express somatostatin receptors subtypes 2 and 5. This article is protected by copyright. All rights reserved.
July 25, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28740481/refractory-hypothyroidism-due-to-improper-storage-of-levothyroxine-tablets
#7
Salvatore Benvenga, Giampaolo Papi, Alessandro Antonelli
CONTEXT: A not negligible part of hypothyroid patients on levothyroxine therapy do not normalize serum thyrotropin (TSH) concentrations. "Refractory hypothyroidism," i.e., a condition characterized by persistently abnormal serum TSH levels despite adequate titration of l-T4 substitution therapy, requires biochemical and instrumental investigation, but no definite etiology is found in up to 15% of cases. OBJECTIVE: To report patients presenting with refractory hypothyroidism with proven improper storage of levothyroxine tablets...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28737965/comparison-of-three-competitive-immunoassays-for-measurement-of-tsh-receptor-antibodies-in-patients-with-graves-disease
#8
Sara Doroudian, Inge Bülow Pedersen, Cindy Soendersoe Knudsen, Aase Handberg, Stine Linding Andersen
Thyrotropin (TSH) receptor antibodies (TRAb) mediate the hyperthyroidism of Graves' disease (GD). The aim of the study was to compare the diagnostic performance and assay agreement between three immunoassays for the measurement of TRAb in patients with newly diagnosed GD. TRAb was measured with three different assays [H-TRAb (BRAHMS Diagnostica), M22-Man (RSR Limited) and M22-Aut (Roche Diagnostics)] in 387 participants who were recruited from two Danish population-based studies and diagnosed with GD (n = 101), multinodular toxic goitre (n = 88), primary autoimmune hypothyroidism (n = 100) or included as controls (n = 98)...
July 24, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28729772/serial-stimulated-thyroglobulin-measurements-are-more-specific-for-detecting-distant-metastatic-differentiated-thyroid-cancer-before-radioiodine-therapy
#9
Teng Zhao, Jun Liang, Tianjun Li, Wen Gao, Yansong Lin
OBJECTIVE: Preablative stimulated thyroglobulin (ps-Tg) has the potential to be used in identifying distant metastatic differentiated thyroid carcinoma (DM-DTC), but its single level can be affected by remnant thyroid tissue and thyrotropin (TSH). The objective of this retrospective study was to evaluate the value of serial ps-Tg measurements in identifying DM-DTC specifically. METHODS: A total of 317 DTC patients with serial measurements of ps-Tg, TSH and anti-Tg antibody were divided into M1 (n=72) and M0 (n=245) according to the presence of distant metastasis (DM) or not...
June 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28721126/the-thyroid-gland-in-postmenopausal-women-physiology-and-diseases
#10
REVIEW
Małgorzata Gietka-Czernel
The incidence of most thyroid diseases: hypothyroidism, nodular goitre, and cancer is highest among postmenopausal and elderly women. The diagnosis of thyroid dysfunction in this group of patients is difficult because the symptoms can be nonspecific or common with menopausal and ageing complaints. In the interpretation of thyroid function tests the physiological changes in secretion and metabolism of thyrotropin (TSH) and thyroid hormones must be considered, as well as the influence of comorbidities. Unrecognised thyroid dysfunction leads to increased: cardiovascular risk, bone fractures, cognitive impairment, depression, and mortality...
June 2017: Przeglad Menopauzalny, Menopause Review
https://www.readbyqxmd.com/read/28720519/taltirelin-alleviates-fatigue-like-behavior-in-mouse-models-of-cancer-related-fatigue
#11
John P Dougherty, Brian S Wolff, Mary J Cullen, Leorey N Saligan, Marvin C Gershengorn
Fatigue affects most cancer patients and has numerous potential causes, including cancer itself and cancer treatment. Cancer-related fatigue (CRF) is not relieved by rest, can decrease quality of life, and has no FDA-approved therapy. Thyrotropin-releasing hormone (TRH) has been proposed as a potential novel treatment for CRF, but its efficacy against CRF remains largely untested. Thus, we tested the TRH analog, taltirelin (TAL), in mouse models of CRF. To model fatigue, we used a mouse model of chemotherapy, a mouse model of radiation therapy, and mice bearing colon 26 carcinoma tumors...
July 15, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28705886/thyroid-status-quality-of-life-and-mental-health-in-patients-on-hemodialysis
#12
Connie M Rhee, Yanjun Chen, Amy S You, Steven M Brunelli, Csaba P Kovesdy, Matthew J Budoff, Gregory A Brent, Kamyar Kalantar-Zadeh, Danh V Nguyen
BACKGROUND AND OBJECTIVES: In the general population, there is increasing recognition of the effect of thyroid function on patient-centered outcomes, including health-related quality of life and depression. Although hypothyroidism is highly prevalent in hemodialysis patients, it is unknown whether thyroid status is a risk factor for impaired health-related quality of life or mental health in this population. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We examined the association of thyroid status, defined by serum thyrotropin, with health-related quality of life and depressive symptoms over time in a prospective cohort of 450 patients on hemodialysis from 17 outpatient dialysis facilities from May of 2013 to May of 2015 who underwent protocolized thyrotropin testing, Short-Form 36 surveys, and Beck Depression Inventory-II questionnaires every 6 months...
July 13, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28701428/a-mercury-toxicity-case-complicated-by-hyponatremia-and-abnormal-endocrinological-test-results
#13
Matthew Carter, Abdul Abdi, Fareeha Naz, Farouq Thabet, Arpita Vyas
Mercury (Hg) poisoning is considered a rare disease by the National Institutes of Health and the diagnosis can present great challenges to clinicians. Children who are exposed to Hg can present with a wide variety of symptoms, including acrodynia, tremor, excessive salivation, and psychiatric symptoms, including insomnia. However, endocrinologic manifestations from Hg exposure are less well known. This is a case report of a 12-year-old boy who presented with body rash, irritability, insomnia, and profuse sweating after returning from a summer camp...
August 2017: Pediatrics
https://www.readbyqxmd.com/read/28693124/pediatric-toxic-polycystic-thyroid
#14
Janeil M Belle, Nektarios Vasilottos, Todd D Nebesio, Benjamin C James
BACKGROUND: Polycystic thyroid disease (PCTD) is a rare condition and has been described in adults in the setting of subclinical and clinical hypothyroidism. We present the first known case of a pediatric patient with diffuse macrocystic degeneration of the thyroid. CLINICAL PRESENTATION: A 6-year-old previously healthy patient was evaluated after presenting with a 16-month history of an enlarging polycystic thyroid and hyperthyroidism. Markers of autoimmune thyroid disease including thyroid stimulating immunoglobulin (TSI), thyroid stimulating hormone (TSH) receptor antibody, thyroid peroxidase antibody and thyroglobulin antibody were negative...
June 16, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28688760/-once-weekly-l-thyroxine-treatment-in-non-compliance-a-case-report
#15
C Oliver, M Grino, P Moatti Vacher-Coponat, I Morange, F Retornaz
INTRODUCTION: The non-adherence to substitutive treatment by L-thyroxine is the main cause of the discordance between high thyrotropin values and high doses of the drug. OBSERVATION: In a 36-year-old patient with post-surgery hypothyroidism, thyrotropin values ranged between 100 and 400 mUI/L, although daily replacement therapy included 300 μg of L-thyroxine and 75 μg of L-triiodothyronine. The oral loading test with L-thyroxine was normal and thyrotropin serum level returned to normal values under weekly oral administration of 1000 μg L-thyroxine...
July 5, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28688088/early-stimulated-thyroglobulin-for-response-prediction-after-recombinant-human-thyrotropin-aided-radioiodine-therapy
#16
Hee Jeong Park, Jung-Joon Min, Hee-Seung Bom, Jahae Kim, Ho-Chun Song, Seong Young Kwon
OBJECTIVE: Measurement of recombinant human thyrotropin (rhTSH)-stimulated thyroglobulin (Tg) is generally recommended 72 h after the second rhTSH injection. However, due to the acute effect of I-131 on thyrocytes, Tg measured after radioiodine therapy (RIT) would not accurately reflect the thyroid tissue burden. We aimed to determine predictive values of serum Tg level measured just before rhTSH-aided RIT and to compare the results obtained just after RIT in patients with differentiated thyroid carcinoma (DTC)...
July 7, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28686898/prenatal-transfer-of-decabromodiphenyl-ether-bde-209-results-in-disruption-of-the-thyroid-system-and-developmental-toxicity-in-zebrafish-offspring
#17
Zhihua Han, Yufei Li, Shenghu Zhang, Ninghui Song, Huaizhou Xu, Yao Dang, Chunsheng Liu, John P Giesy, Hongxia Yu
Decabromodiphenyl ether (BDE-209) was one of most widely-used polybrominated diphenyl ether (PBDE) flame retardants and is frequently detected in both abiotic and biotic samples from environment. However, knowledge of its transgenerational risks is limited. Here, 4-month-old zebrafish were exposed to various concentrations of BDE-209 (0, 3, 30 or 300μg/L) for 28days and spawned in clean water without BDE-209. Concentrations of triiodothyronine (T3) and thyroxine (T4) as well as expressions of genes involved in the hypothalamic-pituitary-thyroid (HPT) axis were measured in offspring after exposure of adult zebrafish to BDE-209...
September 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28685517/free-thyroxine-anti-thyroid-stimulating-hormone-receptor-antibody-titers-and-absence-of-goiter-were-associated-with-responsiveness-to-methimazole-in-patients-with-new-onset-graves-disease
#18
Hoon Sung Choi, Won Sang Yoo
BACKGROUND: Anti-thyroid drug therapy is considered a treatment of choice for Graves' disease; however, treatment response varies among individuals. Although several studies have reported risk factors for relapse after initial treatment, few have assessed responsiveness during the early treatment period. Our study aimed to identify the clinical characteristics for responsiveness to methimazole. METHODS: We included 99 patients diagnosed with Graves' disease for the first time...
June 2017: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28684460/abdominal-surgery-induced-gastric-ileus-and-activation-of-m1-like-macrophages-in-the-gastric-myenteric-plexus-prevention-by-central-vagal-activation-in-rats
#19
Pu-Qing Yuan, Yvette Taché
Inflammation plays a role in abdominal surgery (AS)-induced intestinal ileus that is alleviated by electrical vagal stimulation. The stable thyrotropin-releasing hormone agonist, RX77368 injected intracisternally (ic) activates dorsal motor nucleus neurons and gastric vagal efferent discharges. We investigated the gastric inflammation induced by AS and the modulation by ic RX-77368 in rats. RX77368 (50 ng/rat) or saline was injected ic followed, 1 h later, by laparotomy and small intestinal/cecal manipulation...
July 6, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28684452/lower-tsh-and-higher-free-thyroxine-predict-incidence-of-prostate-but-not-breast-colorectal-or-lung-cancer
#20
Yi Xian Chan, Matthew Knuiman, Mark L Divitini, Suzanne J Brown, John P Walsh, Bu Beng Yeap
CONTEXT: Thyroid hormones modulate proliferative, metabolic and angiogenic pathways, however few studies have examined associations of thyroid hormones with cancer risk. OBJECTIVES: To explore associations of thyrotropin (TSH), free thyroxine (FT4) and anti-thyroperoxidase antibodies (TPOAb) with the incidence of all (non-skin) cancers and specific common cancers. DESIGN AND SETTING: A prospective cohort study of a community-dwelling population aged 25-84 years in Western Australia...
July 6, 2017: European Journal of Endocrinology
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