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https://www.readbyqxmd.com/read/28222584/ultrasonographic-imaging-of-papillary-thyroid-carcinoma-variants
#1
Jung Hee Shin
Ultrasonography (US) is routinely used to evaluate thyroid nodules. The US features of papillary Epub ahead of print thyroid carcinoma (PTC), the most common thyroid malignancy, include hypoechogenicity, spiculated/microlobulated margins, microcalcifications, and a nonparallel orientation. However, many PTC variants have been identified, some of which differ from the classic type of PTC in terms of biological behavior and clinical outcomes. This review describes the US features and clinical implications of the variants of PTC...
January 12, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28222413/a-new-tr%C3%AE-mutation-in-resistance-to-thyroid-hormone-syndrome
#2
Corina Neamţu, Claudiu Ţupea, Diana Păun, Anca Hoisescu, Adina Ghemigian, Samuel Refetoff, Chutintorn Sriphrapradang
Thyroid hormones (TH) exert their actions by binding nuclear receptors alpha (TRα1) and beta (TRß1 and TRß2). Resistance to thyroid hormone (RTH) is a clinical syndrome with various clinical manifestations, its hallmark being decreased tissue sensitivity to the action of thyroid hormones. We report the case of a family harbouring a novel TRß mutation. Sequencing of the TRβ gene revealed a single nucleotide substitution-C to G in codon 340: glutamine was replaced by glutamic acid. The clinical picture and biochemical and hormonal panel showed significant differences within the family, despite their sharing the same mutation...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222412/low-risk-papillary-thyroid-carcinoma-patients-who-underwent-near-total-thyroidectomy-without-prophylactic-central-compartment-lymph-node-dissection-and-were-ablated-with-low-dose-50mci-rai-had-excellent-10-year-prognosis
#3
Marina Michalaki, Panagiotis Bountouris, Nikolaos D Roupas, Anastasia Theodoropoulou, Niki Agalianou, Theodoros Alexandrides, Kostas Markou
BACKGROUND: The current trend in the management of low risk differentiated thyroid carcinoma is to follow less aggressive strategies. OBJECTIVE: To assess the long-term morbidity and mortality outcomes of low-risk papillary thyroid carcinoma (PTC) patients undergoing minimal intervention. DESIGN: We retrospectively analyzed 137 patients with low-risk PTC (stage I: n=77; stage II: n=60). Of these patients, 107 (Group 1) had macro-PTC and underwent near-total thyroidectomy and received postoperatively 50mCi RAI...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222405/thyroid-hormones-a-potential-ally-to-ldl-cholesterol-lowering-agents
#4
REVIEW
Leonidas N Duntas, Gabriela Brenta
L-thyroxine (LT4) treatment of hypothyroidism, particularly in patients with thyroid- stimulating hormone (TSH) >10mU/L, results in improved lipid profile, as LT4 stimulates low-density lipoprotein cholesterol (LDL-C) degradation and the conversion of cholesterol in bile acids by inducing LDL-receptor and 7 alpha hydroxylase expression, respectively. Statins decrease total cholesterol (TC) and LDL-C mainly by suppressing 3-hydroxy-3-methylglutaryl coenzyme A activity. Therefore, the addition of statins to LT4 treatment, following the reversal of hypothyroidism, acts synergistically and forms a powerful treatment modality in patients with this condition whose serum lipids have not achieved the target...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222219/longitudinal-follow-up-of-adult-survivors-of-ewing-sarcoma-a-report-from-the-childhood-cancer-survivor-study
#5
Neyssa M Marina, Qi Liu, Sarah S Donaldson, Charles A Sklar, Gregory T Armstrong, Kevin C Oeffinger, Wendy M Leisenring, Jill P Ginsberg, Tara O Henderson, Joseph P Neglia, Marilyn A Stovall, Yutaka Yasui, R Lor Randall, David S Geller, Leslie L Robison, Kirsten K Ness
BACKGROUND: Ewing sarcoma survivors (ESSs) are at increased risk for treatment-related complications. The incidence of treatment-related morbidity and late mortality with aging is unknown. METHODS: This study reports survival probabilities, estimated with the Kaplan-Meier method, and the cumulative incidence of cause-specific mortality and chronic conditions among ESSs in the Childhood Cancer Survivor Study who were treated between 1970 and 1986. Piecewise exponential models were used to estimate relative rates (RRs) and 95% confidence intervals (CIs) for these outcomes...
February 21, 2017: Cancer
https://www.readbyqxmd.com/read/28222214/segregation-and-expression-analyses-of-habp2-insights-from-a-large-series-of-familial-non-medullary-thyroid-cancers-and-literature-review
#6
Carla Colombo, Marina Muzza, Maria Carla Proverbio, Giulia Ercoli, Michela Perrino, Valentina Cirello, Leonardo Vicentini, Stefano Ferrero, Laura Fugazzola
INTRODUCTION: Recently, the G534E variant of the HABP2 gene was reported as the underlying genetic defect in a large kindred with non-syndromic familial non medullary thyroid cancer (FNMTC). Nevertheless, this postulated role was not confirmed in additional cohorts. Contrasting data are also available on HABP2 expression in the thyroid. OBJECTIVES: To investigate HABP2 as a potential susceptibility gene in a large series of 27 unrelated families with FNMTC and to test its expression in thyroid tumor and matched normal tissues...
February 21, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28222107/transcriptional-response-to-131i-exposure-of-rat-thyroid-gland
#7
Nils Rudqvist, Johan Spetz, Emil Schüler, Toshima Z Parris, Britta Langen, Khalil Helou, Eva Forssell-Aronsson
Humans are exposed to 131I in medical diagnostics and treatment but also from nuclear accidents, and better knowledge of the molecular response in thyroid is needed. The aim of the study was to examine the transcriptional response in thyroid tissue 24 h after 131I administration in rats. The exposure levels were chosen to simulate both the clinical situation and the case of nuclear fallout. Thirty-six male rats were i.v. injected with 0-4700 kBq 131I, and killed at 24 h after injection (Dthyroid = 0.0058-3...
2017: PloS One
https://www.readbyqxmd.com/read/28222020/high-dose-biotin-therapy-leading-to-false-biochemical-endocrine-profiles-validation-of-a-simple-method-to-overcome-biotin-interference
#8
Marie-Liesse Piketty, Dominique Prie, Frederic Sedel, Delphine Bernard, Claude Hercend, Philippe Chanson, Jean-Claude Souberbielle
BACKGROUND: High-dose biotin therapy is beneficial in progressive multiple sclerosis (MS) and is expected to be adopted by a large number of patients. Biotin therapy leads to analytical interference in many immunoassays that utilize streptavidin-biotin capture techniques, yielding skewed results that can mimic various endocrine disorders. We aimed at exploring this interference, to be able to remove biotin and avoid misleading results. METHODS: We measured free triiodothyronine (fT3), free thyroxine (fT4), thyroid-stimulating hormone (TSH), parathyroid homrone (PTH), 25-hydroxyvitamin D (25OHD), follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin, C-peptide, cortisol (Roche Diagnostics assays), biotin and its main metabolites (liquid chromatography tandem mass spectrometry) in 23 plasmas from MS patients and healthy volunteers receiving high-dose biotin, and in 39 biotin-unsupplemented patients, before and after a simple procedure (designated N5) designed to remove biotin by means of streptavidin-coated microparticles...
February 21, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28221211/a-rare-case-of-ck20-ck7-double-negative-merkel-cell-carcinoma
#9
Mary D Le, Luke H OʼSteen, David S Cassarino
The authors present a case of Merkel cell carcinoma (MCC) with unique immunohistochemical staining characteristics. A 57-year-old woman presented with a firm 0.3 cm tan papule on her left nasal-labial fold that was reportedly increasing in size and bleeding. She had a history of multiple head and neck actinic keratoses, papillary thyroid carcinoma, and a family history of an uncle with melanoma. The clinical differential diagnosis was "non-melanoma skin cancer." Histological examination showed a markedly atypical-appearing basaloid neoplasm, present mostly in the dermis, with focal pagetoid spread into the epidermis...
March 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28220939/acute-diffuse-thyroid-swelling-a-rare-complication-of-fine-needle-aspiration
#10
Wai Kiu Tang, Kunwar S S Bhatia, Angel S W Pang, Anil Ahuja
We present a case illustrating the rare complication of acute generalized thyroid swelling shortly after sonographic-guided fine needle aspiration of a thyroid nodule. Ultrasound revealed the presence of characteristic linear hypoechoic avascular areas interspersed throughout the gland suggestive of edema. The patient was treated conservatively, with near complete normalization of the thyroid within 24 hours. Recognition of this potential complication is important, as the rapid onset of diffuse thyroid enlargement is often alarming but typically has a transient and self-limiting course...
February 21, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28220598/applicability-of-99m-tc-labeled-human-serum-albumin-scintigraphy-in-dogs-with-protein-losing-enteropathy
#11
Nina Engelmann, Nele Ondreka, Kerstin von Pückler, Sabrina Mohrs, Julia Sicken, Reto Neiger
BACKGROUND: Diagnosis of protein loss into the gastrointestinal tract using noninvasive techniques is challenging. In people, scintigraphy not only is a sensitive tool to confirm protein-losing enteropathy (PLE), but it also allows for localization of protein loss. HYPOTHESIS/OBJECTIVES: To investigate the feasibility of (99m) Tc-labeled human serum albumin (HSA) scintigraphy in dogs with PLE in comparison with control dogs. ANIMALS: A total of 8 clinically healthy control research dogs and 7 client-owned dogs with gastrointestinal clinical signs and hypoalbuminemia (serum albumin concentration <2...
February 21, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28220476/response-of-trabecular-bone-thyroid-c-and-follicular-cells-to-synthetic-salmon-calcitonin-in-middle-aged-orchidectomized-male-rats
#12
Branko Filipović, Branka Šošić-Jurjević, Vladimir Ajdžanović, Jasmina Živanović, Nataša Ristić, Svetlana Trifunović, Verica Milošević
In contrast to studies in women, male osteoporosis is poorly understood and strictly related to advancing age. Among the first antiresorptive substances used in the prevention and treatment of osteoporosis is calcitonin (CT), a hypocalcemic hormone that potently inhibits osteoclastic bone resorption. Natural CT is produced and secreted by thyroid C-cells. The other endocrine population of thyroid cells produces thyroid hormones (TH), which also affect bone turnover. The aim of this study was to evaluate the influence of salmon CT on trabecular bone microarchitecture with special reference to effects on the structure and function of both CT- and TH-producing thyroid cells in orchidectomized (Orx) middle-aged rats...
February 20, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28220348/proteasome-inhibitor-mg132-induces-thyroid-cancer-cell-apoptosis-by-modulating-the-activity-of-transcription-factor-foxo3a
#13
Wei Qiang, Fang Sui, Jingjing Ma, Xinru Li, Xiaojuan Ren, Yuan Shao, Jiazhe Liu, Haixia Guan, Bingyin Shi, Peng Hou
Proteasome inhibitors are promising antitumor drugs with preferable cytotoxicity in malignant cells and have exhibited clinical efficiency in several hematologic malignancies. P53-dependent apoptosis has been reported to be a major mechanism underlying. However, apoptosis can also be found in cancer cells with mutant-type p53, suggesting the involvement of p53-independent mechanism. Tumor suppressor forkhead Box O3 is another substrate of proteasomal degradation, which also functions partially through inducing apoptosis...
February 20, 2017: Endocrine
https://www.readbyqxmd.com/read/28220335/multivariate-evaluation-of-thyroid-imaging-reporting-and-data-system-ti-rads-in-diagnosis-malignant-thyroid-nodule-application-to-pca-and-pls-da-analysis
#14
Tan Zhang, Fangxuan Li, Jiali Mu, Juntian Liu, Sheng Zhang
OBJECTIVE: To explore the significance of ultrasonic features in differential diagnosis of thyroid nodules via combining the thyroid imaging reporting and data system (TI-RADS) and multivariate statistical analysis. METHODS: Patients who received surgical treatment and was diagnosed with single thyroid nodule by postoperative pathology and preoperative ultrasound were enrolled in this study. Multivariate analysis was applied to assess the significant ultrasonic features which correlated with identifying benign or malignance and grading the TI-RADS classification of thyroid nodule...
February 20, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28219987/a-unique-angiotensin-sensitive-neuronal-population-coordinates-neuroendocrine-cardiovascular-and-behavioral-responses-to-stress
#15
Annette D de Kloet, Lei Wang, Soledad Pitra, Helmut Hiller, Justin A Smith, Yalun Tan, Dani Nguyen, Karlena M Cahill, Colin Sumners, Javier E Stern, Eric G Krause
Stress elicits neuroendocrine, autonomic and behavioral responses that mitigate homeostatic imbalance and ensure survival; however, chronic engagement of such responses promotes psychological, cardiovascular and metabolic impairments. Over recent years, the renin-angiotensin system has emerged as a key mediator of stress responding and its related pathologies, but the neuronal circuits that orchestrate these interactions are not known. These studies combine the use of the Cre-recombinase/loxP system in mice with optogenetics to structurally and functionally characterize angiotensin type-1a receptor-containing neurons of the paraventricular nucleus of the hypothalamus, the goal being to determine the extent of their involvement in the regulation of stress responses...
February 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28219937/a-meta-analysis-of-prognostic-roles-of-molecular-markers-in-papillary-thyroid-carcinoma
#16
Huy Gia Vuong, Uyen N P Duong, Ahmed M A Altibi, Hanh T T Ngo, Thong Quang Pham, Hung Minh Tran, Greta Gandolfi, Lewis Hassell
The prognostic role of molecular markers in papillary thyroid carcinoma (PTC) is a matter of ongoing debate. The aim of our study is to investigate the impact of RAS, BRAF, TERT promoter mutations and RET/PTC rearrangements on prognosis of PTC patients. We performed a search in four electronic databases: PubMed, Scopus, Web of Science and Virtual Health Library (VHL). Data of hazard ratio (HR) and its 95% confidence interval (CI) for Disease-specific survival (DSS) and Disease-free survival (DFS) were directly obtained from original papers or indirectly estimated from Kaplan Meier curve (KMC)...
February 20, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28219805/fusion-of-spatial-gray-level-dependency-and-fractal-texture-features-for-the-characterization-of-thyroid-lesions
#17
U Raghavendra, U Rajendra Acharya, Anjan Gudigar, Jen Hong Tan, Hamido Fujita, Yuki Hagiwara, Filippo Molinari, Pailin Kongmebhol, Kwan Hoong Ng
Thyroid is a small gland situated at the anterior side of the neck and one of the largest glands of the endocrine system. The abrupt cell growth or malignancy in the thyroid gland may cause thyroid cancer. Ultrasound images distinctly represent benign and malignant lesions, but accuracy may be poor due to subjective interpretation. Computer Aided Diagnosis (CAD) can minimize the errors created due to subjective interpretation and assists to make fast accurate diagnosis. In this work, fusion of Spatial Gray Level Dependence Features (SGLDF) and fractal textures are used to decipher the intrinsic structure of benign and malignant thyroid lesions...
February 6, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28219801/ala-photodynamic-treatment-in-lichen-sclerosus-clinical-and-immunological-outcome-focusing-on-the-assesment-of-anti-nuclear-antibodies
#18
Anita Olejek, Iwona Gabriel, Anna Bilska-Janosik, Iwona Kozak-Darmas, Aleksandra Kawczyk-Krupka
BACKGROUND: Lichen sclerosus (LS) is a difficult to treat, often relapsing disease with unknown background. An autoimmune diseases coexist with LS. Over recent years photodynamic therapy (PDT) has been shown to be noninvasive and successful therapeutic approach for the effective treatment many conditions. However, the change of immune status of the patients based on ANA antibodies has not been yet reported. Our aim was to observe the clinical response followed by possible changes in autoimmune antibodies levels before and after PDT...
February 17, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28219646/primary-squamous-cell-carcinoma-of-the-thyroid-initial-assessment-and-follow-up-using-18-f-fdg-pet-ct
#19
L Caballero Gullón, E Carmona González, A Martínez Estévez, M P Gómez Camarero, J J Corral, I Borrego Dorado
Squamous cell carcinoma of thyroid is an uncommon, very aggressive neoplasm, having a poor prognosis and poor response to chemotherapy and radiotherapy. Surgery is the initial treatment of choice, although it often presents as a widespread disease at the time of diagnosis, usually with cervical swelling that causes most of the symptoms due to local infiltration or metastasis. Local infiltration from adjacent tumour and metastatic disease needs to be excluded from other primary epidermoid carcinomas, in order to make a correct diagnosis...
February 16, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28219358/mst-4-and-traf-6-expression-in-the-peripheral-blood-mononuclear-cells-of-patients-with-graves-disease-and-its-significance
#20
Ai Guo, Yan Tan, Chun Liu, Xiaoya Zheng
BACKGROUND: MST-4 and TRAF-6 are involved in the regulation of inflammatory and immune responses. However, whether they participate in the pathogenesis of Graves' disease (GD) has not yet been reported. Therefore, the purpose of this study was to investigate the expression of MST-4 and TRAF-6 in the peripheral blood of patients with GD to understand their role in the pathogenesis of GD. METHODS: Thirty newly diagnosed GD patients, 24 GD patients in remission (eGD) and 30 normal controls (NC) were recruited...
February 20, 2017: BMC Endocrine Disorders
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