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N Abdullah, S K Kamarudin, L K Shyuan, N A Karim
Platinum (Pt) is the common catalyst used in a direct methanol fuel cell (DMFC). However, Pt can lead towards catalyst poisoning by carbonaceous species, thus reduces the performance of DMFC. Thus, this study focuses on the fabrication of a new composite TiO2 carbon nanofiber anodic catalyst support for direct methanol fuel cells (DMFCs) via electrospinning technique. The distance between the tip and the collector (DTC) and the flow rate were examined as influencing parameters in the electrospinning technique...
December 6, 2017: Nanoscale Research Letters
Juan María Martínez Otero
The rapid advance of genetics increases the availability in the market of different genetic tests, which can be acquired directly by consumers without the intermediation of a healthcare professional. Both the European and the Spanish legal framework have restricted the access to these direct-to-consumer (DTC) genetic tests on the grounds of different reasons, such as the protection of consumers or the preservation of public health. The present article discusses these legal restrictions under the light of the right to information...
April 2017: European Journal of Health Law
Dario Tumino, Francesco Frasca, Kate Newbold
Differentiated thyroid cancer (DTC) accounts for 95% of all thyroid cancers and is generally an indolent tumor, treated effectively with surgery, radioactive iodine, and thyroid-stimulating hormone suppressive therapy. However, 5-10% of patients have advanced disease, with aerodigestive tract invasion, distant metastases, or radioiodine refractory disease, with poor prognosis. This review focuses on the approaches for treating advanced DTC, including management of gross extra-thyroidal extension, recurrent loco-regional or distant metastatic disease, the role of external beam radiation therapy and systemic treatment...
2017: Frontiers in Endocrinology
Hosu Kim, Young Nam Kim, Hye In Kim, So Young Park, Jun-Ho Choe, Jung-Han Kim, Jee Soo Kim, Jae Hoon Chung, Tae Hyuk Kim, Sun Wook Kim
Differentiated thyroid cancer (DTC) generally has a favorable prognosis. However, a small percentage of patients suffer from initial distant metastasis (DM). To date, there is no effective predictor for the presence of initial DM. The aim of this study was to determine if preoperative serum thyroglobulin (Tg) level could predict initial DM in DTC. We reviewed an institutional thyroid cancer database from October 1994 to February 2016. To determine the Tg cutoff for predicting initial DM, 4,735 patients who were diagnosed with DTC were included in this study...
December 5, 2017: Scientific Reports
S C Clement, L C M Kremer, F A Verburg, J H Simmons, M Goldfarb, R P Peeters, E K Alexander, E Bardi, E Brignardello, L S Constine, C A Dinauer, V M Drozd, F Felicetti, E Frey, A Heinzel, M M van den Heuvel-Eibrink, S A Huang, T P Links, K Lorenz, R L Mulder, S J Neggers, E J M Nieveen van Dijkum, K C Oeffinger, R R van Rijn, S A Rivkees, C M Ronckers, A B Schneider, R Skinner, J D Wasserman, T Wynn, M M Hudson, P C Nathan, H M van Santen
Radiation exposure to the thyroid gland during treatment of childhood, adolescent and young adult cancer (CAYAC) may cause differentiated thyroid cancer (DTC). Surveillance recommendations for DTC vary considerably, causing uncertainty about optimum screening practices. The International Late Effects of Childhood Cancer Guideline Harmonization Group, in collaboration with the PanCareSurFup Consortium, developed consensus recommendations for thyroid cancer surveillance in CAYAC survivors. These recommendations were developed by an international multidisciplinary panel that included 33 experts in relevant medical specialties who used a consistent and transparent process...
November 14, 2017: Cancer Treatment Reviews
Min Ji Jeon, Won Gu Kim, Tae Hyuk Kim, Hee Kyung Kim, Bo Hyun Kim, Hyon Seung Yi, Eun Sook Kim, Hosu Kim, Young Nam Kim, Eun Heui Kim, Tae Yong Kim, Sun Wook Kim, Ho Cheol Kang, Jae Hoon Chung, Young Kee Shong, Won Bae Kim
BACKGROUND: Little is known regarding disease-specific mortality of differentiated thyroid cancer (DTC) patients and its risk factors in Korea. METHODS: We retrospectively reviewed a large multi-center cohort of thyroid cancer from six Korean hospitals and included 8,058 DTC patients who underwent initial surgery between 1996 and 2005. RESULTS: Mean age of patients at diagnosis was 46.2±12.3 years; 87% were females. Most patients had papillary thyroid cancer (PTC; 97%) and underwent total thyroidectomy (85%)...
November 22, 2017: Endocrinology and Metabolism
Livia Lamartina, Giorgio Grani, Emanuela Arvat, Alice Nervo, Maria Chiara Zatelli, Roberta Rossi, Efisio Puxeddu, Silvia Morelli, Massimo Torlontano, Michela Massa, Rocco Bellantone, Alfredo Pontecorvi, Teresa Montesano, Loredana Pagano, Lorenzo Daniele, Laura Fugazzola, G Ceresini, Rocco Bruno, Ruth Rossetto, Salvatore Tumino, Marco Centanni, Domenico Meringolo, Maria Grazia Castagna, Domenico Salvatore, Antonio Nicolucci, Giuseppe Lucisano, Sebastiano Filetti, Cosimo Durante
The 8th edition of AJCC/TNM staging system for differentiated thyroid cancer (DTC) has recently been published. The aim of this study was to compare AJCC/TNM staging 7th and 8th edition in terms of tumor stage distribution in a multicenter, consecutive and prospective cohort of newly diagnosed DTC collected in a web-based observational database. Additional information concerning the extent of minimal extrathyroidal extension was collected. A cohort of 1765 DTC patients (76% females, median age 48 years, 94% papillary histotype) was analyzed...
November 30, 2017: Endocrine-related Cancer
Jing Yang, Meng Liang, Yingying Jia, Li Wang, Lin Lin, Jianhua Geng, Shengzu Chen, Ye-Xiong Li, Rong Zheng
Objective: To explore the therapeutic response (TR) and long-term outcomes of iodine-131 (I-131) treatment for patients with differentiated thyroid cancer and pulmonary metastases (DTC+PM), as well as the association between the assessment of TR and long-term outcomes. Methods: This retrospective study comprised 151 DTC+PM patients. TR was evaluated by changes in serum levels of thyroglobulin, anatomic imaging and iodine uptake in pulmonary nodules; logistic regression was applied to identify predictors...
November 3, 2017: Oncotarget
Wen-Jun Wei, Zhong-Wu Lu, Duo Wen, Tian Liao, Duan-Shu Li, Yu Wang, Yong-Xue Zhu, Zhuo-Ying Wang, Yi Wu, Yu-Long Wang, Qing-Hai Ji
BACKGROUND: Lymph node metastasis is important when evaluating the prognosis of patients with differentiated thyroid cancer (DTC). However, the current N-staging system cannot fully reflect the clinical significance of cervical lymph node metastasis in DTC. In this study, we employed Surveillance, Epidemiology, and End Results (SEER)-registered DTC cases with lymph node metastasis to determine whether the positive lymph node number (PLNN) could be used to improve stratification of patients in terms of survival...
November 28, 2017: World Journal of Surgery
Brandon M Welch, Jillian Harvey, Nathaniel S O'Connell, James T McElligott
BACKGROUND: Direct-to-consumer (DTC) telemedicine providers has the potential to change the traditional patient-physician relationship. Professional medical organizations recommend that telemedicine exist within the medical home. This study aims to understand patients' preferences and desires for DTC telemedicine. METHODS: We conducted a nationwide survey of 4345 survey respondents demographically balanced to represent the United States adult population. The survey consisted of questions assessing the respondents' attributes and their willingness and comfortability using telemedicine as well as the importance and desired attributes of a provider providing care via telemedicine...
November 28, 2017: BMC Health Services Research
Zubair A Khan, Sangita Mehta, Natarajan Sumathi, Muthuswamy Dhiwakar
PURPOSE: To determine the incidence of occult invasion of sternothyroid by differentiated thyroid cancer (DTC) and identify clinico-pathological features associated with the same. METHODS: Retrospective study of a consecutive series of DTC patients undergoing surgery, with preoperative ultrasound showing no evidence of strap muscle invasion. All had en bloc excision of sternothyroid muscle along with thyroidectomy. Incidence of microscopic invasion of sternothyroid and clinicopathologic features associated with the same, were studied...
November 27, 2017: European Archives of Oto-rhino-laryngology
MinJi Jeon, Young Nam Kim, Tae-Yon Sung, Suck Joon Hong, Yoon Young Cho, Tae Yong Kim, YoungKee Shong, Won Bae Kim, Sun Wook Kim, Jae Hoon Chung, Tae Hyuk Kim, Won Gu Kim
BACKGROUND: Data on the risk stratification of pediatric differentiated thyroid cancer (DTC) remain scarce. We aimed to evaluate the predictors of structural persistent/recurrent disease and revise an initial risk stratification system in pediatric DTC patients. METHODS: This retrospective cohort study included 203 patients (< 20 years) from two tertiary referral centers in Korea. We classified the extent of cervical lymph node (LN) metastasis based on the location or number of metastatic LNs...
November 27, 2017: Thyroid: Official Journal of the American Thyroid Association
MinJi Jeon, Mijin Kim, Suyeon Park, Hye-Seon Oh, Tae Yong Kim, Won Bae Kim, YoungKee Shong, Won Gu Kim
BACKGROUND: The risk of recurrence in patients with differentiated thyroid cancer (DTC) can be estimated based on their response to initial therapy. The aim of this study is to evaluate adequate follow-up strategy for DTC patients with excellent response by assessing the characteristics of structural recurrence. METHODS: This historical cohort study included 1359 DTC patients who had excellent response to initial therapy after total thyroidectomy with radioactive iodine remnant ablation...
November 27, 2017: Thyroid: Official Journal of the American Thyroid Association
Aisling de Paor
BACKGROUND: With rapid scientific and technological advances, the past few years has witnessed the emergence of a new genetic era and a growing understanding of the genetic make-up of human beings. These advances have propelled the introduction of companies offering direct to consumer (DTC) genetic testing, which facilitates the direct provision of such tests to consumers, (for example, via the internet). Although DTC genetic testing offers benefits by enhancing consumer accessibility to such technology, promoting proactive healthcare and increasing genetic awareness, it presents a myriad of challenges, from an ethical, legal and regulatory perspective...
November 25, 2017: Irish Journal of Medical Science
Kristen Kiernicki, Donald W Helme
Although direct-to-consumer (DTC) prescription drug advertising is regulated by the U.S. Food and Drug Administration, content analyses suggest advertisers may not disclose drug risks in the same way they describe drug benefits. This study tests the relationship between image congruency in televised DTC advertisements, recall of risks/benefits, and perceived persuasiveness. Advertisements for Nasonex, Advair, and Lunesta were shown to college students in either their original (image incongruent) or modified (image neutral) form...
October 2017: Health Marketing Quarterly
Noor Janjua, Volkert B Wreesmann
Differentiated thyroid cancer is characteristically associated with an innocuous clinical course, but a minority of cases may manifest surprisingly aggressive behaviour. Such aggressive DTC are directly responsible for the majority of thyroid cancer related deaths. Moreover, they contribute indirectly to increased DTC-related morbidity, because our inability to differentiate these tumours from innocuous DTC at an early stagefuels a significant degree of DTC overtreatment around the globe. In the present paper we describe how improved understanding of the clinicopathological thyroid tumour progression model and optimization of clinical staging systems continues to improve our ability to diagnose and treat aggressive DTC...
October 6, 2017: European Journal of Surgical Oncology
E N Klein Hesselink, Carles Zafon, Núria Villalmanzo, Carmela Iglesias, B M van Hemel, M S Klein Hesselink, Cristina Montero-Conde, Raquel Buj, Dídac Mauricio, Miguel A Peinado, Manel Puig-Domingo, Garcilaso Riesco-Eizaguirre, Jordi L Reverter, Mercedes Robledo, T P Links, Mireia Jordà
Introduction: Global DNA hypomethylation is a major event for the development and progression of cancer, although the significance in thyroid cancer remains unclear. Therefore, we aimed to investigate its role in thyroid cancer progression and its potential as a prognostic marker. Methods: Global hypomethylation of Alu repeats was used as a surrogate marker for DNA global hypomethylation, and was assessed using the Quantification of Unmethylated Alu (QUAlu) technique...
November 20, 2017: Journal of Clinical Endocrinology and Metabolism
Ronghao Sun, Hua Zhang, Kun Liu, Jinchuan Fan, Guojun Li, Xicheng Song, Chao Li
BACKGROUND: Cervical lymph node metastasis (LNM) has been proven to be a predictor for locoregional recurrence in differentiated thyroid carcinoma (DTC). Clinicopathological features could be effective predictive factors for central and lateral LNM of DTC, and provide references to surgeons for cervical neck dissection. METHODS: Retrospective analysis of clinicopathological data was performed on 420 patients who underwent initial surgery from 2010 to 2015. RESULTS: The incidence of central and lateral LNM was calculated...
November 18, 2017: Acta Otorrinolaringológica Española
Hui-Xian Yan, Ping Pang, Fu-Lin Wang, Wen Tian, Yu-Kun Luo, Wei Huang, Guo-Qing Yang, Nan Jin, Li Zang, Jin Du, Jian-Ming Ba, Jing-Tao Dou, Yi-Ming Mu, Zhao-Hui Lyu
The study aimed to investigate the gender-related differences of disease onset, age distribution, blood type, clinical characteristics, and malignant behaviors of differentiated thyroid carcinoma (DTC) in Chinese patients. A total of 7385 consecutive thyroid cancer patients who underwent thyroidectomy were retrospectively reviewed. 4087 (55.3%) were diagnosed as benign and the other (3298, 44.7%) were as malignant. DTC accounted for 97.6% in the malignant tumor. More single nodules turned out to be DTC in male compared to multiple nodules (46...
November 20, 2017: Scientific Reports
Nelli Pajamäki, Saara Metso, Tommi Hakala, Tapani Ebeling, Heini Huhtala, Essi Ryödi, Juhani Sand, Arja Jukkola-Vuorinen, Pirkko-Liisa Kellokumpu-Lehtinen, Pia Jaatinen
OBJECTIVE: Thyroid hormone suppression therapy has been widely used in the treatment of thyroid cancer, but concerns have been raised about the cardiovascular risks of this treatment. The objective of this study was to evaluate long-term cardiovascular morbidity and mortality in patients treated for differentiated thyroid cancer (DTC) and to assess the effect of TSH suppression and radioiodine (RAI) treatment on the cardiovascular outcome. DESIGN: Retrospective cohort study...
November 20, 2017: Clinical Endocrinology
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