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https://www.readbyqxmd.com/read/28823142/oncogenes-mitochondrial-metabolism-and-quality-control-in-differentiated-thyroid-cancer
#1
Hyon-Seung Yi, Joon Young Chang, Koon Soon Kim, Minho Shong
Thyroid cancer is one of the most common malignancies of endocrine organs, and its incidence rate has increased steadily over the past several decades. Most differentiated thyroid tumors derived from thyroid epithelial cells exhibit slow-growing cancers, and patients with these tumors can achieve a good prognosis with surgical removal and radioiodine treatment. However, a small proportion of patients present with advanced thyroid cancer and are unusually resistant to current drug treatment modalities. Thyroid tumorigenesis is a complex process that is regulated by the activation of oncogenes, inactivation of tumor suppressors, and alterations in programmed cell death...
August 22, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28817373/cabozantinib-as-salvage-therapy-for-patients-with-tyrosine-kinase-inhibitor-refractory-differentiated-thyroid-cancer-results-of-a-multicenter-phase-ii-international-thyroid-oncology-group-trial
#2
Maria E Cabanillas, Jonas A de Souza, Susan Geyer, Lori J Wirth, Michael E Menefee, Stephen V Liu, Komal Shah, John Wright, Manisha H Shah
Purpose Sorafenib and lenvatinib are oral multikinase inhibitors targeting vascular endothelial growth factor receptor (VEGFR) and approved for radioiodine (RAI)-refractory differentiated thyroid cancer (DTC). However, there are no approved second- or third-line therapies. MET is implicated in resistance to VEGFR inhibitors. Cabozantinib is an oral multikinase inhibitor targeting MET in addition to VEGFR and is approved for medullary thyroid cancer. In a phase I study of cabozantinib, five of eight patients with DTC previously treated with a VEGFR-targeted therapy had an objective response to cabozantinib...
August 17, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28817151/comprehensive-analysis-of-long-noncoding-rna-mrna-co-expression-patterns-in-thyroid-cancer
#3
Yaying Du, Wenfei Xia, Jinjun Zhang, Dongyi Wan, Zhifang Yang, Xingrui Li
Novel molecular-targeted treatments show great prospects for radioiodine-refractory and surgically inoperable thyroid carcinomas. While aberrations in protein-coding genes are a focus in molecular thyroid cancer medicine, the impact of oncogenes on the expression of long noncoding RNAs (lncRNAs) has been largely uncharacterized. We aimed to identify the expression patterns of lncRNAs and mRNAs in high-throughput molecular profiles of 18 papillary thyroid cancer (PTC) patients. We identified 452 mRNAs and 240 unannotated lncRNAs that were differentially expressed in PTC...
August 17, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28815788/association-between-radioiodine-treatment-for-thyroid-cancer-and-risk-of-stroke
#4
Chun-Yi Lin, Cheng-Li Lin, Yi-Chen Lo, Chia-Hung Kao
BACKGROUND: The purpose of this study was to evaluate the association between radioiodine (I-131) therapy for thyroid cancer and the risk of stroke in Taiwan. METHODS: A total of 10 104 of the patients aged 20 years or older, who were newly diagnosed with thyroid cancer during 2000-2010, were recruited and classified into 2 cohorts according to whether they received I-131 therapy through 1:1 propensity score matching. The cumulative Kaplan-Meier curves for the incidence of stroke in the 2 cohorts were compared using the log-rank test...
August 16, 2017: Head & Neck
https://www.readbyqxmd.com/read/28814251/the-role-of-radiopharmaceuticals-in-amiodarone-induced-thyroid-pathology
#5
Doina Piciu, Alexandru Irimie
Amiodarone is a di-iodinated benzofuran derivative and is classified as a class III antiarrhythmic agent. It is one of the most powerful and effective antiarrhythmics, being a first-line agent due to its ability to treat ventricular and supraventricular dysrhythmias; since 1960 the drug has become one of the most frequently prescribed antiarrhythmics, despite its potentially serious, side effects. By far, one of the most challenging condition is the thyroid pathology induced by this drug. Each 200 mg tablet of amiodarone contains approximately 75 mg of iodine, 3-10% from each tablet being released as free iodine...
August 16, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28814090/melatonin-a-hepatoprotective-agent-against-radioiodine-toxicity-in-rats
#6
A M Barlas, M Sadic, H I Atilgan, Y M Bag, A K Onalan, N Yumusak, M Senes, V Fidanci, M R Pekcici, M Korkmaz, K Kismet, G Koca
OBJECTIVES: The aim of the current study was to investigate the possible radioprotective effects of melatonin against hepatic radioiodine (RAI) toxicity. METHODS: Thirty-six rats were randomly divided into three groups: untreated control (Group 1); oral radioiodine (RAI, 111 MBq) administrated rats (Group 2), and melatonin group (oral RAI and daily intraperitoneal injection of 12 mg/kg melatonin-Group 3). In the third group, melatonin administration was started two days before and continued for five days after RAI administration...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28812918/tyrosine-kinase-inhibitors-for-advanced-or-metastatic-thyroid-cancer-a-meta-analysis-of-randomized-controlled-trials
#7
Jen-Wei Liu, Chiehfeng Chen, El-Wui Loh, Chun-Cheng Chu, Mu-Yi Wang, Hsin-Ju Ouyang, Ya-Ting Chang, Wei-Zhan Zhuang, Ching-Wen Chou, Der-Jr Huang, Chia-Hwa Lee, Yun Yen, Ka-Wai Tam
BACKGROUND AND AIMS: Radioiodine-refractory advanced or metastatic thyroid cancer has poor prognosis. We conducted a meta-analysis of randomized controlled trials to evaluate the effectiveness and safety of tyrosine kinase inhibitors (TKIs) for advanced or metastatic thyroid cancer treatment. METHODS: Studies published until April 2017 were selected. The pooled effect size was calculated through meta-analysis by using random effects models. Outcomes were overall survival (OS), progression-free survival (PFS), objective response rate (RR), and adverse events (AEs)...
August 16, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28790138/amifostine-does-not-protect-thyroid-cancer-cells-in-dna-damaging-in-vitro-models
#8
Joanna Klubo-Gwiezdzinska, John Costello, Kirk Jensen, Aneeta Patel, Rok Tkavc, Douglas Van Nostrand, Kenneth Burman, Leonard Wartofsky, Vasily Vasko
BACKGROUND: Amifostine is a potent scavenger of reactive oxygen species that is used for the salivary gland protection during therapy with radioactive iodine for thyroid cancer. There are no data on the potential effect of amifostine on thyroid cancer cells. METHODS: We investigated the effects of the active form of amifostine (WR-1065) on the response of thyroid cancer cells to treatment with DNA damaging agents. WR-1065 was examined in human thyroid cancer cell lines (FTC133, TPC1, BCPAP and C643) and embryonic fibroblast cells NIH3T3...
August 8, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28780248/invasive-follicular-variant-of-papillary-thyroid-cancer-harboring-the-nras-mutation-q61k-and-presenting-with-bone-metastasis-a-case-report
#9
Raman Mehrzad, Michiya Nishino, Carmelo Nucera, Dora Dias-Santagata, James V Hennessey, Per-Olof Hasselgren
INTRODUCTION: The follicular variant of papillary thyroid cancer (FVPTC) can be noninvasive or invasive. The invasive form of FVPTC commonly harbors BRAF mutations whereas RAS mutations are more often associated with noninvasive FVPTC and a favorable clinical outcome. CASE REPORT: A 47-year-old man presented with a metastasis to his right iliac bone as the initial manifestation of a 1.6cm invasive FVPTC. After total thyroidectomy, the patient underwent additional treatment, including thyroid hormone suppressive treatment to non-detectable TSH levels, repeated courses of radioiodine treatment, external beam radiation, and treatment with the tyrosine kinase inhibitor sorafenib...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28760238/selected-controversies-of-radioiodine-imaging-and-therapy-in-differentiated-thyroid-cancer
#10
REVIEW
Douglas Van Nostrand
This article discusses the more controversial areas of the management of differentiated thyroid cancer, namely, the utility of pretherapy staging radioiodine scans; the prescribed activity for iodine-131 remnant ablation, adjuvant treatment, and distant metastases; preparation with thyroid hormone withdrawal versus recombinant human thyroid-stimulating hormone; and the classification of radioiodine refractory differentiated thyroid cancer. The author reviews various aspects of the controversies, such as the recommendations of the 2015 guidelines of the American Thyroid Association, arguments for and against the various controversies, and selected references...
September 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28757314/using-ion-torrent-sequencing-to-study-genetic-mutation-profiles-of-fatal-thyroid-cancers
#11
Jin-Ying Lu, Wern-Cherng Cheng, Kuen-Yuan Chen, Chia-Chi Lin, Ching-Chung Chang, Kuan-Ting Kuo, Pei-Lung Chen
BACKGROUND/PURPOSE: Surgery followed by radioiodine is a mainstay of treatment for thyroid cancers of follicular origins. However, about 5% of the thyroid cancers are non-operable and/or radioiodine-refractory diseases, which are either locally advanced or metastatic and result in a survival of less than 5 years. How to treat this population of thyroid cancer patients becomes a critical issue requiring further understanding of the tumor's genetic information. METHODS: We used formalin-fixed paraffin-embedded specimens of 22 fatal thyroid cancers and their corresponding non-tumor parts, if available, to yield genomic DNA, and applied the Ion Torrent™ Personal Genome Machine (IT-PGM) System (Life Technologies), a next generation sequencing technology, to interrogate 740 mutational hotspots in 46 oncogenes...
July 27, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28748990/-clinical-features-of-patients-with-basedow-graves-disease-seen-at-a-university-hospital
#12
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/28747518/targeted-molecular-radiotherapy-of-pediatric-solid-tumors-using-a-radioiodinated-alkyl-phospholipid-ether-analog
#13
Dana C Baiu, Ian R Marsh, Alexander E Boruch, Ankita Shahi, Saswati Bhattacharya, Justin J Jeffery, Qianqian Zhao, Lance Hall, Jamey P Weichert, Bryan Bednarz, Mario Otto
External beam radiotherapy plays a critical role in the treatment of most pediatric solid tumors. Particularly in children, achieving an optimal therapeutic index to avoid damage to normal tissue is extremely important. Consequently, in metastatic disease, the utility of external beam radiotherapy is very limited. Molecular radiotherapy with tumor-targeted radionuclides may overcome some of these challenges, but to date no single cancer selective agent exists, capable of treating various pediatric malignancies independent of their histopathological origin...
July 26, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28719405/clinical-outcomes-1-year-after-empiric-131i-therapy-for-hyperthyroid-disorders-real-life-experience-and-predictive-factors-of-functional-response
#14
Lavinia Vija Racaru, Charlotte Fontan, Mathilde Bauriaud-Mallet, Séverine Brillouet, Olivier Caselles, Slimane Zerdoud, Delphine Bastié, Delphine Vallot, Philippe Caron, Manuel Bardiès, Frederic Courbon
: Radioiodine is a therapeutic option in Europe for Graves' disease (GD) and toxic multinodular goiter (MNG). PURPOSE: To compare empiric and calculated I activities using 2013 EANM recommendations. To look for predictive factors of therapeutic response to an empiric activity of I. To assess clinical situations favoring calculated treatment modalities. PATIENTS AND METHODS: Prospective monocentric study of clinical outcomes at 1 year follow-up in 86 patients with GD and MNG who received empiric I therapeutic activities (348-939 MBq)...
July 17, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28716814/potency-matched-dual-cytokine-antibody-fusion-proteins-for-cancer-therapy
#15
Roberto De Luca, Alex Soltermann, Francesca Pretto, Catherine Pemberton-Ross, Giovanni Pellegrini, Sarah Wulhfard, Dario Neri
A novel biopharmaceutical, consisting of the F8 monoclonal antibody (specific to a splice isoform of fibronectin) simultaneously fused to both tumor necrosis factor and interleukin-2, was found to react with the majority of solid tumors and hematological malignancies in mouse and man, but not with healthy adult tissues. The product selectively localized to neoplastic lesions in vivo, as evidenced by quantitative biodistribution studies using radioiodinated protein preparations. When the potency of the cytokine payloads was matched by a single-point mutation, the resulting fusion protein (IL2-F8-TNF(mut)) eradicated soft-tissue sarcomas in immunocompetent mice, which did not respond to individual antibody-cytokine fusion proteins or by standard doxorubicin treatment...
July 17, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28713331/thyroid-stimulating-hormone-receptor-antibodies-in-pregnancy-clinical-relevance
#16
REVIEW
Ines Bucci, Cesidio Giuliani, Giorgio Napolitano
Graves' disease is the most common cause of thyrotoxicosis in women of childbearing age. Approximately 1% of pregnant women been treated before, or are being treated during pregnancy for Graves' hyperthyroidism. In pregnancy, as in not pregnant state, thyroid-stimulating hormone (TSH) receptor (TSHR) antibodies (TRAbs) are the pathogenetic hallmark of Graves' disease. TRAbs are heterogeneous for molecular and functional properties and are subdivided into activating (TSAbs), blocking (TBAbs), or neutral (N-TRAbs) depending on their effect on TSHR...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28703115/incidental-diagnosis-of-the-tall-cell-variant-of-the-papillary-microcarcinoma-of-the-thyroid-gland-requires-completion-lymphadenectomy-case-report
#17
I Bartella, F Meyer, K Frauenschläger, K Reschke, Th Wallbaum, B Buth, C Bruns, C Chiapponi
Papillary thyroid carcinoma is the most common neoplasm of the thyroid gland which is usually associated with a very good prognosis. The aim of this case report is to present the disease course of a rare tumor of the thyroid gland, which is worthwhile due to its extraordinary appearance and specific management. A 46-year-old patient presented with a pronounced right-sided, but bilateral, multinodular goiter, with a volume of approximately 80 mL, as assessed on ultrasonography. Surgical removal was indicated as scintigraphy showed a 4-cm cold nodule that almost completely took up the right thyroid lobe...
June 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28702266/papillary-thyroid-carcinoma-ectopic-malignancy-versus-metastatic-disease
#18
Yanery's Agosto-Vargas, Madeleine Gutiérrez, José Hernán Martínez, Michelle Mangual-Garcia, Coromoto Palermo, Sharon Vélez-Maymi, Luis Hernández-Vázquez, Samayra Miranda-Rodríguez, Alex González-Bossolo, Ernesto Solá-Sánchez, Marianne Hernández-Negrón
Papillary thyroid carcinoma frequently metastasizes to regional lymph nodes. However, cervical lymph node metastasis as a sole manifestation of occult papillary thyroid carcinoma is rarely observed. Ectopic thyroid is an uncommon condition defined as the presence of thyroid tissue at a site other than pretracheal area. Approximately 1-3% of all ectopic thyroid tissue is located in the lateral neck. This entity may represent the only functional thyroid tissue in the body. Malignant transformation of ectopic thyroid is uncommon; but even rarer is the development of papillary carcinoma on it...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28699814/survival-times-for-cats-with-hyperthyroidism-treated-with-a-3-35-mci-iodine-131-dose-a-retrospective-study-of-96-cases
#19
Marie Vagney, Loic Desquilbet, Edouard Reyes-Gomez, Françoise Delisle, Patrick Devauchelle, Maria Isabel Rodriguez-Piñeiro, Dan Rosenberg, Pauline de Fornel-Thibaud
Objectives Radioiodine ((131)I) dose determination using radiotracer kinetic studies or scoring systems, and fixed relatively high (131)I dose (ie, 4 or 5 mCi) administration, are effective and associated with prolonged survival times for hyperthyroid cats. The latter method is less complicated but could expose patients and veterinary personnel to unnecessary levels of radiation. The aim of this study was to retrospectively evaluate the efficacy of a fixed 3.35 mCi (131)I dose for the treatment of 96 hyperthyroid cats with no length estimation for any palpated goitre ⩾20 mm, assess outcome and identify factors associated with survival...
July 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28697989/sialoendoscopy-combined-with-an-internal-stent-and-postoperative-massage-as-a-comprehensive-treatment-of-delayed-i-131-induced-parotitis
#20
Q Meng, W Fang, X Long, M Deng, J Li, J Ke
A common complication of radioiodine (I(131)) treatment of thyroid cancer is parotitis. Here we describe our clinical experience in treating delayed I(131)-induced parotitis using sialoendoscopy together with an internal stent and postoperative massage. In this retrospective cohort study we reviewed 32 patients who were treated in that way under general anaesthesia between July 2010 and March 2015. Their age, sex, and the time to development of the parotitis were collected from the hospital's database. All patients were evaluated using a visual analogue scale (VAS), sialography, and computed tomography preoperatively...
July 8, 2017: British Journal of Oral & Maxillofacial Surgery
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