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Thyroid: Official Journal of the American Thyroid Association

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https://www.readbyqxmd.com/read/27967605/early-developmental-disruption-of-type-2-deiodinase-pathway-in-mouse-skeletal-muscle-does-not-impair-muscle-function
#1
Daniele L Ignacio, Diego H S Silvestre, Elena Anne-Palmer, Barbara M L C Bocco, Tatiana L Fonseca, Miriam O Ribeiro, Balázs Gereben, Antonio C Bianco, Joao P Werneck-de-Castro
BACKGROUND: Myogenesis is positively regulated by thyroid hormone (triiodothyronine [T3]), which is amplified by the type 2 deiodinase (D2) activation of thyroxine to T3. Global inactivation of the Dio2 gene impairs skeletal muscle (SKM) differentiation and regeneration in response to muscle injury. Given that newborn and adult mice with late developmental SKM Dio2 disruption do not develop a significant phenotype, it was hypothesized that D2 plays an early role in this process. METHODS: This was tested in mice with SKM disruption of Dio2 driven by two early developmental promoters: MYF5 and MYOD...
February 10, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28181854/effects-of-coexistent-brafv600e-and-tert-promoter-mutations-on-poor-clinical-outcomes-in-papillary-thyroid-cancer-a-meta-analysis
#2
Shinje Moon, Young Shin Song, Ye An Kim, Jung Ah Lim, Sun Wook Cho, Jae Hoon Moon, Seokyung Hahn, Do Joon Park, Young Joo Park
BACKGROUND: Presence of a TERT promoter mutation has been suggested as a potential prognostic marker for thyroid cancer and a synergistic association with the BRAFV600E mutation has been demonstrated. The aim of this study was to verify the role of this genetic duet in papillary thyroid cancer (PTC). METHODS: Studies of the association of BRAFV600E and TERT promoter mutations with clinicopathological features, recurrence, or PTC-related mortality were included from PubMed and Embase databases (inception to September 2016)...
February 9, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28178890/letter-to-the-editor
#3
Muhammad H Mujammami, Michael Tamilia
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February 8, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28061551/consanguinity-and-the-risk-of-hashimoto-s-thyroiditis
#4
Raja Y Zaghlol, Alireza Haghighi, Motasem M Alkhayyat, Othman F Theyab, Amal M Owaydah, Mu'taz M Massad, Mohammad A Atari, Ayman A Zayed
BACKGROUND: Hashimoto's thyroiditis (HT) is the most common autoimmune thyroid disease that may lead to hypothyroidism due to progressive destruction of the thyroid. The etiology of HT is unclear. However, it is associated with multiple genetic predispositions. Consanguinity has been associated with an increased susceptibility to different inherited conditions. This study investigated the association between consanguinity and risk of HT for the first time. METHODS: Using a case-control study design, 298 HT patients were compared with two subject groups: (i) 299 participants with non-HT hypothyroidism, and (ii) 298 healthy control participants...
February 8, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28049387/stimulation-of-thyroid-function-by-human-chorionic-gonadotropin-during-pregnancy-a-risk-factor-for-thyroid-disease-and-a-mechanism-for-known-risk-factors
#5
Tim I M Korevaar, Yolanda B de Rijke, Layal Chaker, Marco Medici, Vincent W V Jaddoe, Eric A P Steegers, Theo J Visser, Robin P Peeters
BACKGROUND: Thyroid autoimmunity is a major risk factor for gestational thyroid disease, and recently various other risk factors have been identified, including maternal age, body mass index (BMI) and parity. Human chorionic gonadotropin (hCG) is an important determinant of gestational thyroid function, yet it is unknown to what extent differences in hCG concentration affect the risk for thyroid disease. We have recently shown that thyroperoxidase antibody positivity impairs the thyroidal response to hCG stimulation, which may suggest that this is a mechanism through which thyroid autoimmunity acts as a risk factor for thyroid disease...
February 8, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28071986/evaluation-of-a-two-year-routine-application-of-molecular-testing-of-thyroid-fine-needle-aspirations-using-a-seven-gene-panel-in-a-primary-referral-setting-in-germany
#6
Markus Eszlinger, Katharina Böhme, Maha Ullmann, Fabian Görke, Udo Siebolts, Anna Neumann, Christiane Franzius, Sabine Adam, Thomas Molwitz, Christian Landvogt, Bassam Amro, Anja Hach, Berit Feldmann, Dieter Graf, Antje Wefer, Rainer Niemann, Catharina Bullmann, Günther Klaushenke, Reinhard Santen, Gregor Tönshoff, Velimir Ivancevic, Andreas Kögler, Erhard Bell, Bernd Lorenz, Gerald Kluge, Christoph Hartenstein, Ilka Ruschenburg, Ralf Paschke
BACKGROUND: Major differences with respect to the diagnostic performance of a "ruling in" approach in the presurgical diagnosis of indeterminate thyroid fine-needle aspirations (FNAs) have been reported. Therefore, the aim of this prospective multicenter study was to investigate the specific diagnostic impact of mutation testing using a seven-gene panel in a routine primary referral setting analyzing FNAs from endocrinology and nuclear medicine practices in Germany. METHODS: RNA and DNA was extracted from 564 routine air-dried FNA smears obtained from 64 physicians and cytologically graded by one experienced cytopathologist...
February 7, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28056660/biochemical-markers-reflecting-thyroid-function-in-athyreotic-patients-on-levothyroxine-monotherapy
#7
Mitsuru Ito, Akira Miyauchi, Mako Hisakado, Waka Yoshioka, Akane Ide, Takumi Kudo, Eijun Nishihara, Minoru Kihara, Yasuhiro Ito, Kaoru Kobayashi, Akihiro Miya, Shuji Fukata, Mitsushige Nishikawa, Hirotoshi Nakamura, Nobuyuki Amino
BACKGROUND: Some investigators reported that among athyreotic patients on levothyroxine (LT4) monotherapy following total thyroidectomy, the patients with normal serum thyrotropin (TSH) levels had mildly low serum free triiodothyronine (fT3) levels, whereas the patients with mildly suppressed serum TSH levels had normal serum fT3 levels, and the patients with strongly suppressed serum TSH had elevated serum fT3 levels. The objective of the present study was to clarify which of these three patient groups is closer to their preoperative euthyroid condition...
February 6, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28049375/comparative-effectiveness-of-treatment-choices-for-graves-hyperthyroidism-a-historical-cohort-study
#8
Vishnu Sundaresh, Juan P Brito, Prabin Thapa, Rebecca S Bahn, Marius N Stan
BACKGROUND: The optimum therapy for Graves' disease (GD) is chosen following discussion between physician and patient regarding benefits, drawbacks, potential side effects, and logistics of the various treatment options, and it takes into account patient values and preferences. This cohort study aimed to provide useful information for this discussion regarding the usage, efficacy, and adverse-effect profile of radioactive iodine (RAI), antithyroid drugs (ATDs), and thyroidectomy in a tertiary healthcare facility...
February 6, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28052718/thyroid-nodule-size-at-ultrasound-as-a-predictor-of-malignancy-and-final-pathologic-size
#9
Allison Cavallo, Daniel N Johnson, Michael G White, Saaduddin Siddiqui, Tatjana Antic, Melvy Mathew, Raymon H Grogan, Peter Angelos, Edwin L Kaplan, Nicole A Cipriani
BACKGROUND: Thyroid-related mortality has remained constant despite the increasing incidence of thyroid carcinoma. Most thyroid nodules are benign; therefore, ultrasound and fine needle aspiration (FNA) are integral in cancer screening. We hypothesize that increased nodule size at ultrasound does not predict malignancy and correlation between nodule size at ultrasound and pathologic exam is good. METHODS: Resected thyroids with preoperative ultrasounds were identified...
February 3, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28059636/effects-of-adequate-iodine-supply-on-the-incidence-of-iodine-induced-thyroid-disorders-in-slovenia
#10
Vid Bajuk, Katja Zaletel, Edvard Pirnat, Sergej Hojker, Simona Gaberšček
BACKGROUND: This study aimed to establish the changes in the incidence and characteristics of iodine-induced hyperthyroidism (II-Hyper) and iodine-induced hypothyroidism (II-Hypo) in the two-year period before and the 10-year period after the increase in mandatory salt iodization from the previous 10 mg/kg of potassium iodide to 25 mg/kg in 1999. Furthermore, the aim was to determine the duration of treatment in II-Hyper patients, since no data regarding severity and treatment of II-Hyper with respect to iodine supply are available...
February 1, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28049366/primary-thyroid-carcinoma-with-low-risk-histology-and-distant-metastases-clinicopathologic-and-molecular-characteristics
#11
Bin Xu, R Michael Tuttle, Mona M Sabra, Ian Ganly, Ronald Ghossein
BACKGROUND: Distant metastases (DM) are a rare occurrence in well-differentiated thyroid carcinoma. The aim of this study was to analyze the clinical, pathologic, and molecular features of primary thyroid carcinoma with low-risk histology that develop DM. METHODS: A detailed clinicopathologic review and targeted next-generation sequencing were performed on a cohort of well-differentiated thyroid carcinoma lacking gross extrathyroidal extension, extensive vascular invasion, or significant lymph node metastases but exhibiting DM...
February 1, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28049373/long-term-follow-up-for-differentiated-thyroid-carcinoma-patients-a-reconsideration
#12
Robin A L van der Wardt, Adrienne C M Persoon, Esther N Klein Hesselink, Thera P Links
No abstract text is available yet for this article.
January 31, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28136139/outcome-of-large-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-niftp
#13
Bin Xu, Giovanni Tallini, Theresa Scognamiglio, Benjamin R Roman, R Michael Tuttle, Ronald Ghossein
BACKGROUND: In 2016, encapsulated papillary thyroid carcinoma, follicular variant without invasion was renamed noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) in order to reduce overtreatment of this indolent tumor. However, many endocrinologists remain uneasy about managing large (≥ 4 cm) NIFTP conservatively without radioactive iodine (RAI) therapy. The objectives of this study are to characterize the clinicopathologic characteristics and outcome of large NIFTP in order to assist therapeutic decision making...
January 30, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/27809707/can-an-educational-intervention-improve-iodine-nutrition-status-in-pregnant-women-a-randomized-controlled-trial
#14
Parisa Amiri, Najmeh Hamzavi Zarghani, Pantea Nazeri, Fazlollah Ghofranipour, Mehrdad Karimi, Atieh Amouzegar, Parvin Mirmiran, Fereidoun Azizi
BACKGROUND: Because of their increased need for iodine, pregnant women are among the high-risk groups for iodine deficiency. The purpose of this study was to evaluate the effectiveness of an educational program on the iodine nutrition status of pregnant women. METHODS: In this randomized controlled trial, 100 pregnant women were randomly selected from five healthcare centers in the southern region of Tehran, the capital of Iran. In the intervention group, pregnant women received a four-month educational program, which included two face-to-face educational sessions, using a researcher-designed educational pamphlet in the second and third trimesters, and two follows-up telephone calls...
January 30, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28125936/an-adult-mouse-thyroid-side-population-cell-line-that-exhibits-enriched-epithelial-to-mesenchymal-transition
#15
Tsubasa Murata, Manabu Iwadate, Yoshinori Takizawa, Masaaki Miyakoshi, Suguru Hayase, Wenjing Yang, Yan Cai, Shigetoshi Yokoyama, Kunio Nagashima, Yoshiyuki Wakabayashi, Jun Zhu, Shioko Kimura
BACKGROUND: Studies of thyroid stem/progenitor cells have been hampered due to the small organ size and lack of tissue, which limits the yield of these cells. A continuous source that allows the study and characterization of thyroid stem/progenitor cells is desired to push the field forward. METHOD: A cell line was established from Hoechst-resistant side population cells derived from mouse thyroid that were previously shown to contain stem/progenitor-like cells...
January 27, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28125944/applying-criteria-of-active-surveillance-to-low-risk-thyroid-papillary-cancer-over-a-decade-how-many-surgeries-and-complications-can-be-avoided
#16
Andrew Griffin, Juan P Brito, Manisha Bahl, Jenny K Hoang
BACKGROUND: The 2015 American Thyroid Association guidelines acknowledged that "an active surveillance management approach can be considered as an alternative to immediate surgery" in patients with low risk papillary thyroid carcinoma (PTC). The aim of this study is to determine the proportion of PTC that would meet criteria for active surveillance and the surgeries and complications that could have been avoided. METHODS: We retrospectively reviewed 681 patients with thyroid cancer who underwent thyroid surgery from 2003 to 2012...
January 26, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28114862/the-ata-guidelines-on-management-of-thyroid-nodules-and-differentiated-thyroid-cancer-task-force-review-and-recommendation-on-the-proposed-renaming-of-efvptc-without-invasion-to-niftp
#17
Bryan R Haugen, Anna M Sawka, Erik K Alexander, Keith C Bible, Patrizio Caturegli, Gerard Doherty, Susan J Mandel, John C Morris, Aziza Nassar, Furio Pacini, Martin Schlumberger, Kathryn G Schuff, Steven I Sherman, Hilary Somerset, Julie Ann Sosa, David L Steward, Leonard Wartofsky, Michelle D Williams
American Thyroid Association (ATA) leadership asked the ATA Thyroid Nodules and Differentiated Thyroid Cancer Guidelines Task Force to review, comment on and make recommendations related to the suggested new classification of Encapsulated Follicular Variant Papillary Thyroid Carcinoma (eFVPTC) without capsular or vascular invasion to noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). The task force consists of members from the 2015 guidelines task force with the recusal of three members who were authors on the paper under review...
January 23, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28114855/niftp-accounts-for-over-half-of-carcinomas-harboring-ras-mutations
#18
Vera A Paulson, Priyanka Shivdasani, Trevor E Angell, Erik K Alexander, Edmund Cibas, Jeffrey F Krane, Neal I Lindeman, Justine Barletta
BACKGROUND: Molecular testing of thyroid nodules is increasingly being utilized to guide clinical management decisions. RAS mutations are the most frequent mutations detected in the context of an indeterminate fine needle aspiration (FNA) diagnosis. The term noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) was recently introduced to promote conservative management of tumors previously classified as noninvasive follicular variant of papillary thyroid carcinoma (FVPTC)...
January 23, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/27835925/response-to-therapy-status-is-an-excellent-predictor-of-pregnancy-associated-structural-disease-progression-in-patients-previously-treated-for-differentiated-thyroid-cancer
#19
Luba Rakhlin, Stephanie Fish, R Michael Tuttle
BACKGROUND: Pregnancy may be associated with an increased risk of recurrence/progression of differentiated thyroid cancer (DTC). However, it is unclear if the impact of pregnancy would differ based on pre-pregnancy response to therapy status. The objective of this study was to investigate the risk of recurrence/progression of DTC, applying the response to therapy assessments to pre-pregnancy status as recommended by the 2015 American Thyroid Association thyroid cancer guidelines. METHODS: This was a retrospective review of 235 women followed at Memorial Sloan Kettering Cancer Center for DTC who had a term pregnancy after initial treatment for DTC between 1997 and 2015...
January 19, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28095748/myocardial-inactivation-of-thyroid-hormones-in-patients-with-aortic-stenosis
#20
Bruno Paolino, Pablo Maria Pomerantzeff, Luiz Alberto O Dallan, Fabio Antonio Gaiotto, Nailliw Zanini Preite, Ana Claudia Latronico, Jose Carlos Nicolau, Antonio Carlos Bianco, Roberto Giraldez
OBJECTIVE: To study myocardial thyroid hormone metabolism in patients with aortic valve stenosis (AS) undergoing aortic valve replacement and in patients with coronary artery disease (CAD) undergoing coronary artery bypass grafting surgery. CONTEXT: The human heart expresses the type 2 deiodinase (D2) that activates T4 to T3. At the same time, the inactivating type 3 deiodinase (D3) has been found in a rat model of right ventricular hypertrophy. It is not known whether the human myocardium metabolizes thyroid hormone...
January 17, 2017: Thyroid: Official Journal of the American Thyroid Association
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