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https://www.readbyqxmd.com/read/28646742/image-analysis-for-tsh-mrna-in-situ-hybridization-in-pituitary-glands-from-rats-with-thyroid-follicular-cell-hypertrophy-after-treatment-with-three-different-test-compounds
#1
Juergen Funk, Martin Ebeling, Thomas Singer, Christian Landes
The goal of this in situ hybridization and image analysis technique is to study the effects of new pharmacological/chemical entities on the thyroid and pituitary gland in rats, reveal the pathogenesis of thyroid follicular cell hypertrophy and to retrospectively exclude the risk of thyroid tumor development in humans. In the present study, we describe the increase of thyroid-stimulating hormone- (TSH-) beta subunit mRNA in the pars distalis of the pituitary gland and the quantitative measurement of TSH mRNA positive cells from rats of three 4-week toxicity studies treated with three different test compounds inducing thyroid follicular cell and hepatocellular hypertrophy in rats...
June 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28646602/comparison-of-acoustic-radiation-force-impulse-imaging-and-strain-elastography-in-differentiating-malignant-from-benign-thyroid-nodules
#2
Fengjuan Zhang, Xinming Zhao, Ruoling Han, Min Du, Ping Li, Xiaohui Ji
OBJECTIVES: This study aimed to evaluate the diagnostic value of acoustic radiation force impulse (ARFI) imaging and strain elastography in differentiating malignant from benign thyroid nodules. METHODS: This study included 128 patients (104 female and 24 male; mean age ± standard deviation, 48 ± 11 years; range, 23-76 years) with 152 pathologically proven thyroid nodules. Conventional sonography, strain ratio (SR) of strain elastography, virtual touch tissue imaging (VTI) grade, and virtual touch tissue quantification (shear wave velocity [SWV]) from ARFI imaging data were generated for each nodule...
June 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28646475/latero-cervical-lymph-node-metastases-n1b-represent-an-additional-risk-factor-for-papillary-thyroid-cancer-outcome
#3
G Sapuppo, F Palermo, M Russo, M Tavarelli, R Masucci, S Squatrito, R Vigneri, G Pellegriti
PURPOSE: Papillary thyroid carcinoma (PTC), the most common thyroid cancer histotype, has a good prognosis even when spread to the neck lymph node (LN). The prognostic role of LN metastases' location is still controversial. The aim of the present study was to evaluate the clinical relevance of the number and location of LN metastases at presentation in PTCs. METHODS: This retrospective study included a consecutive series of 1653 PTC patients followed for a mean period of 5...
June 23, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28646474/correlation-between-braf-v600e-mutation-and-clinicopathological-features-in-pediatric-papillary-thyroid-carcinoma
#4
Jiangqiao Geng, Huanmin Wang, Yuanhu Liu, Jun Tai, Yaqiong Jin, Jie Zhang, Lejian He, Libing Fu, Hong Qin, Yingluan Song, Jinzhu Su, Aiying Zhang, Xin Wen, Yongli Guo, Xin Ni
In adults, the presence of the BRAF (V600E) mutation in papillary thyroid cancer (PTC) has been demonstrated to be strongly associated with aggressive cancer-cell characteristics and poor patient prognosis. In contrast, the frequency of this mutation in pediatric PTC has undergone limited study, and the few available estimates range from 0 to 63%. Furthermore, the role of the BRAF (V600E) mutation in pediatric PTC is controversial; thus, the present study aimed to investigate the prevalence and role of the BRAF (V600E) mutation in 48 pediatric patients with PTC, aged 3-13 years...
June 15, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28646462/diagnostic-utility-of-pet-ct-with-18-f-dopa-and-18-f-fdg-in-persistent-or-recurrent-medullary-thyroid-carcinoma-the-importance-of-calcitonin-and-carcinoembryonic-antigen-cutoff
#5
Ana Reyes Romero-Lluch, Juan Ignacio Cuenca-Cuenca, Raquel Guerrero-Vázquez, Antonio Jesús Martínez-Ortega, Juan Luis Tirado-Hospital, Isabel Borrego-Dorado, Elena Navarro-González
PURPOSE: This study sought to evaluate and compare the utility of 18-F-fluorodihydroxyphenylalanine ((18)F-DOPA) and 18-F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) for identification of lesions in patients with recurrent medullary thyroid carcinoma (MTC). In addition, we analyzed the correlation between the calcitonin (Ct), carcinoembryonic antigen (CEA) levels, each doubling time (DT), and PET positivity. We evaluated the reliability of the 150 pg/mL Ct cutoff set by the American Thyroid Association guidelines for further imaging (including (18)F-DOPA PET/CT)...
June 23, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28646422/how-to-avoid-and-to-manage-post-operative-complications-in-thyroid-surgery
#6
REVIEW
Matteo Angelo Cannizzaro, Salvatore Lo Bianco, Maria Carolina Picardo, Daniele Provenzano, Antonino Buffone
Complications of thyroidectomy are hypoparathyroidism, recurrent laryngeal nerve palsy, and hemorrhage. These complications have a low incidence. Hypoparathyroidism is the most frequent complication of total thyroidectomy. Its incidence varies between 0.5 and 65%. This complication is also visible after reoperation for recurrent disease and in patients previously treated with radioiodine. Damage to the recurrent laryngeal nerve can be temporary or permanent, unilateral or bilateral. The bilateral lesion, associated with severe episodes of breathlessness, is a rare complication (0...
June 23, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28646016/tshb-mrna-is-linked-to-cholesterol-metabolism-in-adipose-tissue
#7
José María Moreno-Navarrete, María Moreno, Francisco Ortega, Gemma Xifra, Shangyu Hong, John M Asara, José C E Serrano, Mariona Jové, Pavlos Pissios, Matthias Blüher, Wifredo Ricart, Manuel Portero-Otin, José Manuel Fernández-Real
Subclinical hypothyroidism is known to be associated with increased serum cholesterol. Since thyroid-stimulating hormone (TSH) exerts an inductor effect on cholesterol biosynthesis, we aimed to investigate the relationship between TSH mRNA and cholesterol metabolism in human adipose tissue (AT). Cross-sectionally, AT TSH-β (TSHB) mRNA was evaluated in 4 independent cohorts in association with serum total and LDL cholesterol, and AT lipidomics. Longitudinally, the effects of statins and of diet and exercise on AT TSHB mRNA were also examined...
June 23, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28645753/multi-immunoreaction-based-dual-color-capillary-electrophoresis-for-enhanced-diagnostic-reliability-of-thyroid-gland-disease
#8
Nain Woo, Su-Kang Kim, Seong Ho Kang
Thyroid-stimulating hormone (TSH) secretion plays a critical role in regulating thyroid gland function and circulating thyroid hormones (i.e., thyroxine (T4) and triiodothyronine (T3)). A novel multi-immunoreaction-based dual-color capillary electrophoresis (CE) technique was investigated in this study to assess its reliability in diagnosing thyroid gland disease via simultaneous detection of TSH, T3, and T4 in a single run of CE. Compared to the conventional immunoreaction technique, multi-immunoreaction of biotinylated streptavidin antibodies increased the selectivity and sensitivity for individual hormones in human blood samples...
June 16, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28645694/-comparative-analysis-effectiveness-of-nicotine-addiction-treatment-in-people-with-psychiatric-comorbidity
#9
R Godoy, F J Callejas, J Cruz, A I Tornero, P J Tárraga, J A Rodríguez-Montes
OBJECTIVE: To determine whether or not nicotine addiction treatment was less effective in psychiatric than in the healthy population. MATERIAL AND METHODS: A retrospective, descriptive and comparative cohort study was conducted in Albacete University Hospital during years 2008-2012 on all patients that attended the Tobacco Cessation Unit. The statistical tests used were Chi-squared, likelihood ratio, and the Student t test. Statistical significance P≤.05. RESULTS: The study included a total of 1,484 patients, of which 48...
June 20, 2017: Semergen
https://www.readbyqxmd.com/read/28645579/anti-androgenic-mechanisms-of-bisphenol-a-involve-androgen-receptor-signaling-pathway
#10
Hui Wang, Zhen Ding, Qiao-Mei Shi, Xing Ge, Heng-Xue Wang, Meng-Xue Li, Gang Chen, Qi Wang, Qiang Ju, Jin-Peng Zhang, Mei-Rong Zhang, Li-Chun Xu
We have shown Bisphenol A (BPA) acts as an androgen receptor (AR) antagonist in the previous study. However, the mechanisms underlying anti-androgenic effects of BPA remain unclear. The objective of this study was to explore whether the AR signaling was involved in AR antagonism of BPA. The Cell Counting Kit-8 (CCK-8) assay and Real-Time Cell Analysis (RTCA) iCELLigence system were applied to analyze the mouse Sertoli cell TM4 proliferation. The mammalian two-hybrid assays were performed to investigate the effects of BPA on the AR amino- and carboxyl-terminal regions (N/C) interaction and the interactions of the AR with steroid receptor coactivator-1 (SRC-1), co-repressors including silencing mediator for thyroid hormone receptors (SMRT) and nuclear receptor co-repressor (NCoR)...
June 20, 2017: Toxicology
https://www.readbyqxmd.com/read/28645161/lncrna-tug1-influences-papillary-thyroid-cancer-cell-proliferation-migration-and-emt-formation-through-targeting-mir-145
#11
Hongwei Lei, Yan Gao, Xiaoying Xu
LncRNA TUG1, a tumor oncogene associated with various human cancers, has been reported to be involved in regulating various cellular processes, such as proliferation, apoptosis and invasion through targeting multiple genes. However, its biological function in thyroid cancer cells has not been elucidated. The aim of this study is to measure TUG1 expression level and evaluate its function in thyroid cancer cells. LncRNA TUG1 expression levels in thyroid cancer tissues and three thyroid cancer cell lines (the ATC cell lines SW1736 and KAT18 and the FTC cell line FTC133) were assessed by qRT-PCR and compared with that of the human normal breast epithelial cell HGC-27...
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28645086/toddler-exposure-to-flame-retardant-chemicals-magnitude-health-concern-and-potential-risk-or-protective-factors-of-exposure-observational-studies-summarized-in-a-systematic-review
#12
REVIEW
Eva J Sugeng, Marijke de Cock, Linda J Schoonmade, Margot van de Bor
Endocrine disrupting flame retardant (FR) chemicals form a human health concern, that is investigated mostly from the perspective of adult- and early life exposure. No overview of studies on toddler exposure and health effects exist. However, toddlerhood is a critical developmental period and toddlers are at increased risk for exposure because of their age-specific behavior. This systematic review encompasses toddler FR exposure studies in three countries, associated health effects and potential environmental, demographic, or behavioral risk- or protective factors for toddler exposure...
June 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28644858/the-flame-retardant-de-71-a-mixture-of-polybrominated-diphenyl-ethers-inhibits-human-differentiated-thyroid-cell-function-in-vitro
#13
Thit Mynster Kronborg, Juliana Frohnert Hansen, Åse Krogh Rasmussen, Katrin Vorkamp, Claus Henrik Nielsen, Marie Frederiksen, Jacob Hofman-Bang, Christoffer Holst Hahn, Louise Ramhøj, Ulla Feldt-Rasmussen
BACKGROUND: Normal thyroid function is essential for general growth and metabolism, but can be affected by endocrine disrupting chemicals (EDCs). Polybrominated diphenyl ethers (PBDEs) have been used worldwide to reduce flammability in different materials and are suspected to be EDCs. The production of the commercial Penta- and OctaBDE mixtures is banned, but DecaBDEs and existing products may leak PBDEs into the environment. Our aim was to investigate the effect of the PentaBDE mixture DE-71 on human thyroid cells in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28644684/c-cell-and-follicular-epithelial-cell-precursor-lesions-of-the-thyroid
#14
Theresa Scognamiglio
CONTEXT: - The identification of precursor or dysplastic lesions in the thyroid is difficult. Pathology of the C cell has been extensively studied, and the preneoplastic nature of C-cell hyperplasia in the setting of familial medullary thyroid carcinomas is well established. However, the distinction between neoplastic and physiologic/reactive C-cell hyperplasia remains a challenge. Unlike C cells, the existence of a precursor lesion of follicular cell-derived tumors is less well established, and a dysplastic or preneoplastic follicular lesion has not been well defined...
June 23, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28644425/significance-of-parathyroid-scintigraphy-and-correlation-of-findings-with-parathyroid-hormone-values-in-patients-undergoing-hemodialysis
#15
Nermana Ahmetbegović, Nadira Suljagić, Vahidin Katica
Aim To compare finding of thyroid gland scintigraphy with serum concentration of parathyroid hormone in patients undergoing hemodialysis. Methods This retrospective-prospective study included 50 patients undergoing hemodialysis with established hyperparathyroidism who were treated at Cantonal Hospital Zenica in the period 2009 - 2014. Besides anthropological data, concentration of parathyroid hormone in serum of patients was monitored too. Scintigraphy was performed at the Department of Nuclear Medicine using two-headed gamma camera Prism 2000xp...
August 1, 2017: Medicinski Glasnik
https://www.readbyqxmd.com/read/28644255/periodic-paralysis-and-encephalopathy-as-initial-manifestations-of-graves-disease-case-report-and-review-of-the-literature
#16
Theocharis Tsironis, Athanasios Tychalas, Dimitrios Kiourtidis, Jannis Kountouras, Georgia Xiromerisiou, Jobst Rudolf, Georgia Deretzi
BACKGROUND: Thyrotoxic periodic paralysis (TPP) is an uncommon complication of Graves' disease, characterized by the triad of acute hypokalemia without total body potassium deficit, episodic muscle paralysis, and thyrotoxicosis. Graves' encephalopathy is an extremely rare form of encephalopathy associated with autoimmune thyroid disease (EAATD), characterized by neuropsychiatric symptoms, increased antithyroid antibodies and cerebrospinal fluid protein concentration, nonspecific electroencephalogram abnormalities, and cortico-responsiveness...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28643774/insufficient-antibody-validation-challenges-oestrogen-receptor-beta-research
#17
Sandra Andersson, Mårten Sundberg, Nusa Pristovsek, Ahmed Ibrahim, Philip Jonsson, Borbala Katona, Carl-Magnus Clausson, Agata Zieba, Margareta Ramström, Ola Söderberg, Cecilia Williams, Anna Asplund
The discovery of oestrogen receptor β (ERβ/ESR2) was a landmark discovery. Its reported expression and homology with breast cancer pharmacological target ERα (ESR1) raised hopes for improved endocrine therapies. After 20 years of intense research, this has not materialized. We here perform a rigorous validation of 13 anti-ERβ antibodies, using well-characterized controls and a panel of validation methods. We conclude that only one antibody, the rarely used monoclonal PPZ0506, specifically targets ERβ in immunohistochemistry...
June 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28643757/significance-of-expression-of-suppressor-of-cytokine-signaling-proteins-suppressor-of-cytokine-signaling-1-suppressor-of-cytokine-signaling-2-and-suppressor-of-cytokine-signaling-3-in-papillary-thyroid-cancer
#18
Toral Pundrik Kobawala, Trupti I Trivedi, Kinjal Kevin Gajjar, Girish H Patel, Nandita R Ghosh
PURPOSE: Uncontrolled cytokine signal transduction largely associated with oncogene activation, can have disastrous biological consequences. The suppressor of cytokine signaling (SOCS) proteins represent one of the mechanisms by which this rampant signaling can be dissipated. Thus, we aimed to study the expression of SOCS-1, SOCS-2, and SOCS-3 in patients having benign thyroid disease and papillary thyroid cancer. MATERIALS AND METHODS: SOCS protein expression was studied in 45 patients with benign thyroid disease and in 83 papillary thyroid cancer patients by immunohistochemistry and their association with clinicopathological characteristics and overall survival in cancer patients were analyzed using SPSS software...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643518/mini-c-arm-fluoroscopy-does-its-configuration-matter-for-radiation-exposure-to-the-surgeon
#19
Talia Chapman, Dennis P Martin, Christopher Williamson, Brian Tinsley, Mark L Wang, Asif M Ilyas
BACKGROUND: The risk of occupational radiation exposure to the surgeon associated with the use of a mini C-arm has yet to reach a wide consensus. Using a distal radius fracture surgery model, we tested the hypothesis that radiation exposure to the surgeon's critical body parts is independent of mini C-arm configuration. METHODS: An anthropomorphic mannequin (representing the upper body of a 60" male surgeon) was seated at a hand table as if operating on a volar-plated wrist Sawbone model...
June 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28643384/cytological-features-of-medullary-thyroid-carcinoma-in-ascitic-effusion
#20
Marilin Rosa
No abstract text is available yet for this article.
June 23, 2017: Diagnostic Cytopathology
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