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Medullary thyroid cancer

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https://www.readbyqxmd.com/read/29341155/long-term-outcome-of-prophylactic-thyroidectomy-in-children-carrying-ret-germline-mutations
#1
A Machens, M Elwerr, K Lorenz, F Weber, H Dralle
BACKGROUND: A comprehensive assessment has not been undertaken of long-term outcomes in children carrying germline RET mutations and undergoing prophylactic thyroidectomy with the aim of preventing medullary thyroid cancer (MTC). METHODS: A retrospective outcome study (1994-2017) of prophylactic thyroidectomy in children, with and without central node dissection, was performed at a tertiary surgical centre. RESULTS: Some 167 children underwent prophylactic thyroidectomy, 109 without and 58 with concomitant central node dissection...
January 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29336779/prophylactic-thyroidectomies-in-men2-syndrome-management-and-outcomes
#2
Virginie Bussières, Shreyas Roy, Johnny Deladoey, Élisabeth Rousseau, Dickens St-Vil, Nelson Piché
AIM OF THE STUDY: The aim of the study was to evaluate the outcomes of prophylactic thyroidectomies performed in an academic setting in the context of multiple endocrine neoplasia type 2 (MEN2) syndrome. METHODS: A chart review of patients <18years old who underwent prophylactic thyroidectomy for a MEN2 syndrome at a children's hospital between 2006 and 2015 was performed. MAIN RESULTS: The study included 21 patients (57% female) with a mean age of 6...
November 13, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29319359/secondary-and-tertiary-preventions-of-thyroid-disease
#3
Fereidoun Azizi, Ladan Mehran, Farhad Hosseinpanah, Hossein Delshad, Atieh Amouzegar
INTRODUCTION: Secondary and tertiary preventions are concerned with the recognition of the disease process in a very early stage and delay in progression to complete disease and minimization of complications and the impact of illness. METHODS: All articles related to secondary and tertiary prevention of thyroid diseases were reviewed. Using related key words, articles published between 2001 and 2015 were evaluated, categorized, and analyzed. RESULTS: In secondary prevention, congenital hypothyroidism and subclinical hypo and hyperthyroidism are equally important...
January 10, 2018: Endocrine Research
https://www.readbyqxmd.com/read/29301825/genomic-correlates-of-response-to-everolimus-in-aggressive-radioiodine-refractory-thyroid-cancer-a-phase-ii-study
#4
Glenn J Hanna, Naifa L Busaidy, Nicole G Chau, Lori J Wirth, Justine A Barletta, Antonio Calles, Robert I Haddad, Stefan Kraft, Maria E Cabanillas, Guilherme Rabinowits, Anne O'Neill, Sewanti A Limaye, Erik K Alexander, Francis D Moore, Krzysztof Misiukiewicz, Tom Thomas, Matthew A Nehs, Ellen Marqusee, Stephanie L Lee, Pasi A Janne, Jochen H Lorch
PURPOSE: Targeting mutations leading to PI3K/mTOR/Akt activation are of interest in thyroid cancer (TC). We evaluated the efficacy of everolimus in aggressive, radioactive iodine refractory (RAIR) TC and correlated tumor mutational profiling with response. Exploratory medullary and anaplastic TC cohorts were included. EXPERIMENTAL DESIGN: This single-arm, multi-institutional phase II study was conducted from 2009-2013 in patients with incurable RAIR TC who had radiographic progression six months prior to enrollment...
January 4, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29298817/circulating-mir-375-as-a-novel-prognostic-marker-for-metastatic-medullary-thyroid-cancer-patients
#5
Paola Romeo, Carla Colombo, Roberta Granata, Giuseppina Calareso, Ambra V Gualeni, Matteo Dugo, Loris De Cecco, Maria Grazia Rizzetti, Angela Zanframundo, Antonella Aiello, Maria Luisa Carcangiu, Annunziata Gloghini, Stefano Ferrero, Lisa Licitra, Angela Greco, Laura Fugazzola, Laura D Locati, Maria Grazia Borrello
This study aimed to identify circulating miRNAs as novel non-invasive biomarkers for prognosis and vandetanib response in advanced medullary thyroid cancer (MTC) patients. We prospectively recruited two independent cohorts of locally advanced/metastatic MTC patients including a subgroup of vandetanib-treated subjects: a discovery cohort (n = 20), including matched plasma/tissue samples (n = 17/20), and a validation cohort, yielding only plasma samples (n = 17). Plasma samples from healthy subjects (n = 36) and MTC patients in remission (n = 9) were used as controls...
January 3, 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29291203/do-you-want-to-participate-in-a-clinical-study-as-a-healthy-control-risk-or-benefit
#6
Hanna Giessen, Christian A Nebiker, Matthias Bruehlmeier, Stefan Spreitzer, Beat Mueller, Philipp Schuetz
A healthy woman volunteered to participate as "healthy control" in a study. An increased level of procalcitonin (PCT) was detected and remained elevated on follow-up measurements. As calcitonin levels were elevated as well, thyroid ultrasound was performed which revealed nodes in both thyroid lobes, one of them showing metabolic activity in positron emission tomography-computed tomography scan. To exclude a malignant thyroid cancer despite the negative findings in a fine needle aspiration the patient underwent thyroidectomy and a medullary thyroid carcinoma (MTC) was detected in the right lobe...
December 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29290677/clinical-relevance-and-cost-savings-of-levocarnitine-versus-ammonul-in-the-management-of-hyperammonemia-in-a-cancer-patient-the-impact-of-a-clinical-pharmacist
#7
Chukwuma Anyanwu, Chinonso Ezeudu, Hoa Le, Oliver Egwim
Background: Hyperammonemia, a relatively uncommon condition characterized by elevated ammonia levels in the blood, presents with varied physiological etiologies that may send patients to the intensive care unit (ICU) with encephalopathy. An immediate decrease in ammonia levels is necessary to avert neurological damage. However, due to the multifaceted nature of hyperammonemia, a definite determination of etiology is not always possible. Objective: This case report examines the clinical and economic impact of a pharmacist in managing acute hyperammonemia of unknown etiology in a 62-year-old Hispanic man who had recently been diagnosed with metastatic medullary thyroid cancer and associated hypercalcemia...
January 2018: P & T: a Peer-reviewed Journal for Formulary Management
https://www.readbyqxmd.com/read/29284496/high-cea-levels-in-a-case-of-resected-colorectal-cancer-delayed-diagnosis-of-metachronous-medullary-thyroid-cancer
#8
Shih-Wei Chen, Yen-Kung Chen
BACKGROUND: Carcinoembryonic antigen (CEA) is one of the most widely used tumor markers, and its value in the surveillance of post-operative colorectal cancer is well established. Fluorodeoxyglucose-positron emission tomography (FDG-PET) has been clinically used in colorectal cancer imaging including preoperative staging, evaluation of therapeutic response, detection of disease recurrence, and investigation of unexplained rising tumor markers. CASE PRESENTATION: We report a case of resected colorectal cancer presented with rising CEA levels in 5 years, and FDG-PET revealed no definitive evidence of recurrence except abnormal focal FDG uptake in the right thyroid lobe...
December 29, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29284153/role-of-ret-protein-tyrosine-kinase-inhibitors-in-the-treatment-ret-driven-thyroid-and-lung-cancers
#9
REVIEW
Robert Roskoski, Abdollah Sadeghi-Nejad
RET is a transmembrane receptor protein-tyrosine kinase that is required for the development of the nervous system and several other tissues. The mechanism of activation of RET by its glial-cell derived neurotrophic factor (GDNF) ligands differs from that of all other receptor protein-tyrosine kinases owing to the requirement for additional GDNF family receptor-α (GFRα) co-receptors (GFRα1/2/3/4). RET point mutations have been reported in multiple endocrine neoplasia (MEN2A, MEN2B) and medullary thyroid carcinoma...
December 25, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29283440/cabozantinib-a-multi-targeted-oral-tyrosine-kinase-inhibitor
#10
Jordan N Markowitz, Karen M Fancher
Cabozantinib is an oral, small-molecule, multitargeted tyrosine kinase inhibitor (TKI) that may confer an advantage over other TKIs that target a single receptor. It has been approved by the United States Food and Drug Administration for the treatment of both advanced renal cell carcinoma and progressive metastatic medullary thyroid cancer, and is being investigated for a wide array of other malignancies. Rationale for use, clinical trial data, and current recommendations for cabozantinib in renal cell cancer, thyroid cancer, prostate cancer, hepatocellular cancer, and lung cancer are detailed in this article...
December 28, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/29281951/gene-fusions-in-thyroid-cancer
#11
Valentina D Yakushina, Larisa V Lerner, Alexander V Lavrov
Gene fusions are known in many cancers as driver or passenger mutations. They play an important role in both etiology and pathogenesis of cancer and are considered as potential diagnostic and prognostic markers and possible therapeutic targets. Spectrum and prevalence of gene fusions in thyroid cancer ranges from single cases up to 80% depending on specific type of cancer. During last three years massive parallel sequencing technologies revealed new fusions and allowed detailed characteristics of fusions in different types of thyroid cancer...
December 27, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29261627/incidental-detection-of-medullary-thyroid-carcinoma-by-68ga-dotatate-pet-ct-in-a-patient-with-neuroendocrine-tumor-liver-metastases
#12
Sonia Mahajan, Ashok Shaha, Ravinder K Grewal
Ga-DOTATATE, a positron-emitting somatostatin analog, has been approved by the Food and Drug Administration for imaging neuroendocrine tumors (NETs). The presence of a second primary malignancy is common in NETs; however, synchronous primary malignancy in the thyroid has rarely been reported. The value of Ga-DOTATATE in medullary thyroid cancer is being investigated and is currently recommended for use when treatment with somatostatin analogs is an option. We present a 55-year-old man with abdominal pain associated with well-differentiated NET liver metastases and incidental medullary thyroid carcinoma demonstrated on a Ga-DOTATATE PET/CT...
December 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29259627/mediastinal-lymph-node-metastases-in-thyroid-cancer-characteristics-predictive-factors-and-prognosis
#13
Ting-Ting Zhang, Ning Qu, Jia-Qian Hu, Rong-Liang Shi, Duo Wen, Guo-Hua Sun, Qing-Hai Ji
Background: Mediastinal lymph node metastases (MLNM) have not been extensively studied. The aim of this study is to investigate the characteristics, predictive factors, and prognosis of MLNM in thyroid cancer. Methods: This is a retrospective study based on the thyroid cancer patients with MLNM at our institution from 2008 to 2015. Results: In total, 73 thyroid cancer patients with positive MLNM were included in this study. It contained sixty patients (82...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29243843/signaling-cascades-in-thyroid-cancer-increasing-the-armory-of-archers-to-hit-bullseye
#14
Faiza Abdul Rashid, Qaisar Mansoor, Hafsa Aziz, Sobia Tabassum, Waleed O Arfat, George E Naoum, Muhammad Ismail, Ammad Ahmad Farooqi
Thyroid cancer is a multifaceted and therapeutically challenging disease and rapidly accumulating experimentally verified findings have considerably improve our understanding of the molecular mechanisms which underlie its development. Substantial fraction of information has been added into existing landscape of molecular oncology and we have started to develop a sharper understanding of the underlying mechanisms of thyroid cancer. Wealth of information demystified different intracellular signaling cascades which are frequently deregulated in thyroid cancer...
December 15, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29239041/hereditary-and-familial-thyroid-tumours
#15
REVIEW
Julie Guilmette, Vania Nosé
The worldwide incidence of thyroid malignancies has been increasing rapidly. Sensitive imaging modalities and early detection of thyroid lesions have made thyroid cancers the most rapidly increasing cancers in the USA in 2017 (SEER Cancer Facts, 2017). Clinical awareness of potential risk factors, such as inherited thyroid cancers, has allowed earlier recognition of more vulnerable population clusters. Hereditary thyroid neoplasms arising from calcitonin-producing C cells are known as familial medullary thyroid carcinomas (FMTCs), and include well-documented syndromes such as multiple endocrine neoplasia IIA or IIB, and pure familial medullary thyroid carcinoma syndrome...
January 2018: Histopathology
https://www.readbyqxmd.com/read/29234625/insight-into-differentiated-thyroid-cancer-gross-pathological-specimen-shrinkage-and-its-influence-on-tnm-staging
#16
Alexis Lacout, Emmanuel Chamorey, Juliette Thariat, Mostafa El Hajjam, Carole Chevenet, Renaud Schiappa, Pierre Yves Marcy
Introduction: This study aimed at comparing thyroid cancer staging when taking into account the differences between the "T" assessment" using ultrasound (US) and histopathological measurements. Material and Methods: This retrospective study included all consecutive differentiated follicular thyroid cancer (DTC) and medullary thyroid cancer (MTC) patients who underwent postoperative histopathological staging assessment at a single institution. Anaplastic thyroid carcinomas were excluded from the present study...
November 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/29221659/cardiovascular-outcomes-with-glucagon-like-peptide-1-receptor-agonists-in-patients-with-type-2-diabetes-a-meta-analysis
#17
M Angelyn Bethel, Rishi A Patel, Peter Merrill, Yuliya Lokhnygina, John B Buse, Robert J Mentz, Neha J Pagidipati, Juliana C Chan, Stephanie M Gustavson, Nayyar Iqbal, Aldo P Maggioni, Peter Öhman, Neil R Poulter, Ambady Ramachandran, Bernard Zinman, Adrian F Hernandez, Rury R Holman
BACKGROUND: Glucagon-like peptide-1 (GLP-1) receptor agonists are effective glucose-lowering drugs. Findings from cardiovascular outcome trials showed cardiovascular safety of GLP-1 receptor agonists, but results for cardiovascular efficacy were varied. We aimed to examine overall cardiovascular efficacy for lixisenatide, liraglutide, semaglutide, and extended-release exenatide. METHODS: In this systematic review and meta-analysis, we analysed data from eligible trials that assessed the safety and efficacy of GLP-1 receptor agonists compared with placebo in adult patients (aged 18 years or older) with type 2 diabetes and had a primary outcome including, but not limited to, cardiovascular mortality, non-fatal myocardial infarction, and non-fatal stroke...
December 5, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29219214/whole-exome-sequencing-identifies-a-germline-met-mutation-in-two-siblings-with-hereditary-wild-type-ret-medullary-thyroid-cancer
#18
Marialuisa Sponziello, Silvia Benvenuti, Alessandra Gentile, Valeria Pecce, Francesca Rosignolo, Anna Rita Virzì, Melissa Milan, Paolo M Comoglio, Eric Londin, Paolo Fortina, Agnese Barnabei, Marialuisa Appetecchia, Ferdinando Marandino, Diego Russo, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti
Whole exome sequencing (WES) was used to investigate two Italian siblings with wild-type RET genotype, who developed medullary thyroid cancers (MTCs) and, later, primary prostate and breast cancers, respectively. The proband's MTC harbored a p.Met918Thr RET mutation; his sister's MTC was RET/RAS wild-type. Both siblings had a germline mutation (p.Arg417Gln) in the extracellular Sema domain of the proto-oncogene MET. Experiments involving ectopic expression of MET p.Arg417Gln in MET-negative T47D breast cancer cells documented the mutant receptor's functionality and its ability to enhance cell migration and invasion...
December 8, 2017: Human Mutation
https://www.readbyqxmd.com/read/29183805/proteome-profiles-of-different-types-of-thyroid-cancers
#19
Marta Gawin, Anna Wojakowska, Monika Pietrowska, Łukasz Marczak, Mykola Chekan, Karol Jelonek, Dariusz Lange, Roman Jaksik, Aleksandra Gruca, Piotr Widłak
Proteomics profiling of tissue specimens representative for major types of thyroid cancers: papillary (classical and follicular variant), follicular, anaplastic and medullary, as well as benign follicular adenoma, was performed using shotgun LC-MS/MS approaches. A combination of Orbitrap and MALDI-TOF approach allowed to identify protein products of 3700 unique genes and revealed large differences between medullary, anaplastic and epithelium-derived differentiated cancers (papillary and follicular). Proteins characteristic for medullary and anaplastic cancers included factors associated with neuroendocrine functions and factors typically associated with advanced malignancies, respectively...
November 25, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29174431/pediatric-thyroid-cancer-patients-referred-to-high-volume-facilities-have-improved-short-term-outcomes
#20
Linda M Youngwirth, Mohamed A Adam, Samantha M Thomas, Sanziana A Roman, Julie A Sosa, Randall P Scheri
BACKGROUND: Thyroid cancer is the most common endocrine malignancy in children, albeit still rare. This study sought to measure the association between outcomes and case volume of the treatment facility for pediatric patients with thyroid cancer. METHODS: The National Cancer Data Base (1998-2011) was queried for all pediatric patients (age ≤ 18 years) with thyroid cancer. Demographic, clinical, and pathologic features were evaluated for all patients. Case volume of the treating facility was defined as the number of pediatric thyroid cancer patients at that facility during the study period...
November 22, 2017: Surgery
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