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https://www.readbyqxmd.com/read/28342873/relationships-of-braf-mutation-and-hmgb1-to-papillary-thyroid-carcinoma
#1
Xiaolei Guan, Ping Wang, Jingwei Chi, Shihua Zhao, Fei Wang
A poor papillary thyroid cancer (PTC) prognosis is strongly associated with the BRAF V600E mutation. During tumor progression, levels of the high mobility group box 1 (HMGB1) protein are often dysregulated. Results herein demonstrate that HMGB1 protein levels differ between tumor and adjacent non-tumor tissue and that HMGB1 mRNA levels were higher in wild-type BRAF PTC tissues than in BRAF V600E PTC tissues (2-△Ct 0.31 ± 0.25 vs. 0.16 ± 0.12; P < 0.05). HMGB1 protein levels also differed in the same manner (wild-type BRAF PTC tissues 0...
March 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28339159/differences-in-survival-outcome-for-severely-injured-paediatric-trauma-by-type-of-trauma-centre
#2
Rebecca J Mitchell, Kate Curtis, Luke Testa, Andrew Ja Holland, Soundappan Sv Soundappan, Sarah Adams
AIM: Whether treatment at paediatric trauma centres (PTCs) provides a survival advantage for injured children over treatment at adult trauma centres (ATCs) remains inconclusive. This study examines the association between trauma centre type and in-hospital mortality for severely injured paediatric trauma patients in New South Wales, Australia. METHODS: A retrospective examination of paediatric patient characteristics (aged ≤15 years), treatment and injury outcome was conducted using data from the New South Wales Trauma Registry for 2009-2014...
March 24, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28338234/extent-of-surgery-did-not-affect-recurrence-during-7-years-follow-up-in-papillary-thyroid-cancer-sized-1-4-cm-preliminary-results
#3
Min Joo Kim, Myung-Chul Lee, Guk Haeng Lee, Hoon Sung Choi, Sun Wook Cho, Su-Jin Kim, Kyu Eun Lee, Young Joo Park, Do Joon Park
OBJECTIVE: There is debate whether hemithyroidectomy is sufficient for patients with papillary thyroid cancer (PTC) sized 1-4 cm. Therefore, we investigated whether hemithyroidectomy affects recurrence rate compared with thyroidectomy in patients with PTC sized 1-4 cm. DESIGN: Retrospective observational study. PATIENTS: We included 147 patients with 1-4 cm PTC who underwent hemithyroidectomy between 2004 and 2008. They were matched with 298 patients who underwent thyroidectomy, comparing age, sex, tumor size, multiplicity, and extrathyroidal extension status, and lymph node (LN) metastasis status...
March 24, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28337456/comparison-of-the-protective-effects-of-individual-components-of-particulated-trans-sialidase-ptcts-ptc-and-ts-against-high-cholesterol-diet-induced-atherosclerosis-in-rabbits
#4
Shérrira M Garavelo, Maria de Lourdes Higuchi, Jaqueline J Pereira, Marcia M Reis, Joyce T Kawakami, Renata N Ikegami, Suely A P Palomino, Nilsa S Y Wadt, Abdelali Agouni
Previous studies showed the presence of Mycoplasma pneumoniae (M. pneumoniae) and membrane-shed microparticles (MPs) in vulnerable atherosclerotic plaques. H&S Science and Biotechnology developed PTCTS, composed by natural particles from medicinal plants (PTC) combined with trans-Sialidase (TS), to combat MPs and Mycoplasma pneumoniae. Our aim was to determine the effects of the different components of PTCTS in a rabbit model of atherosclerosis. Rabbits were fed with high cholesterol diet for 12 weeks and treated during the last 6 weeks with either vehicle, PTC, TS, or PTCTS...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28332339/sonographic-and-cytologic-differences-of-niftp-from-infiltrative-or-invasive-encapsulated-follicular-variant-of-papillary-thyroid-carcinoma-a-review-of-179-cases
#5
REVIEW
Grace C H Yang, Karen O Fried, Theresa Scognamiglio
We reclassified 179 cases of the follicular variant (FV) of papillary thyroid carcinoma (PTC) into 72 (40.2%) noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP), 37 (20.7%) encapsulated FVPTC with invasion (EFVPTC), and 70 (39.1%) infiltrative FVPTC (IFVPTC) without a capsule. In the NIFTP group, 5.6% cytology were hypercellular and the remainder low to moderate cellularity. PTC nuclei were absent in 18%, focally present in 37.5%, and diffusely present in 44.4%. In the EFVPTC group, 8...
March 22, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28331529/detection-of-braf-mutation-in-the-cytocentrifugation-supernatant-fluid-from-fine-needle-aspiration-of-thyroid-lesions-may-enhance-the-diagnostic-yield
#6
Ashley E Brown, Khin Sandar Lim, George Corpus, Martha T Hustek, Tien Anh N Tran, Chung-Che Chang
OBJECTIVE: BRAF mutations using cellular DNA from fine-needle aspiration (FNA) specimens are commonly used to support the diagnosis of papillary thyroid carcinoma (PTC). The goal of this study was to preliminarily evaluate the diagnostic utility of detecting BRAF mutations in the routinely discarded FNA specimen supernatant fluid. MATERIALS AND METHODS: Seventy-eight FNAs of thyroid lesions were evaluated for BRAF mutations using both cellular and supernatant DNA...
2017: CytoJournal
https://www.readbyqxmd.com/read/28331174/development-of-customized-18-f-fluoride-elution-techniques-for-the-enhancement-of-copper-mediated-late-stage-radiofluorination
#7
Andrew V Mossine, Allen F Brooks, Naoko Ichiishi, Katarina J Makaravage, Melanie S Sanford, Peter J H Scott
In a relatively short period of time, transition metal-mediated radiofluorination reactions have changed the PET radiochemistry landscape. These reactions have enabled the radiofluorination of a wide range of substrates, facilitating access to radiopharmaceuticals that were challenging to synthesize using traditional fluorine-18 radiochemistry. However, the process of adapting these new reactions for automated radiopharmaceutical production has revealed limitations in fitting them into the confines of traditional radiochemistry systems...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28329426/clinicopathological-characteristics-including-braf-v600e-mutation-status-and-pet-ct-findings-in-papillary-thyroid-carcinoma
#8
Eun Kyoung Choi, Ari Chong, Jung-Min Ha, Chan Kwon Jung, Joo Hyun O, Sung Hoon Kim
OBJECTIVE: We assessed the associations between FDG uptake in primary papillary thyroid carcinomas (PTCs) and clinicopathological features, including the BRAF V600E mutation, using quantitative and qualitative analyses of preoperative PET/CT data. DESIGN AND PATIENTS: This was a retrospective review of 106 patients with PTC who underwent PET/CT scans between February 2009 and January 2011 before undergoing total thyroidectomy. Data collected from surgical specimens were compared with FDG uptake in the primary tumor using quantitative and qualitative analyses of preoperative PET/CT data...
March 22, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28328831/expression-characteristics-of-proteins-of-igf-1r-p-akt-and-survivin-in-papillary-thyroid-carcinoma-patients-with-type-2-diabetes-mellitus
#9
Yuerong Yan, Fengqiu Hu, Weilu Wu, Ruiting Ma, Hui Huang
Type 2 diabetes mellitus (T2DM) is related to increased risk of papillary thyroid carcinoma (PTC). Insulin-like growth factor-1 receptor (IGF-1R) is increased in patients with T2DM. The increased IGF-1R may be responsible for the development of PTC. In this study, we investigated the expression of phosphorylation of Akt (p-Akt)/survivin pathway activated by IGF-1R in PTC subjects with and without diabetes.Clinicopathological data of 20 PTC patients with T2DM were retrospectively analyzed and compared with those of 21 PTC subjects without diabetes...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328672/pediatric-trauma-under-triage-in-ohio
#10
Juan P Gurria, Lynn Haas, Md Monir Hossain, Mohammad Alfrad Nobel Bhuiyan, Misty Troutt, Suzanne Moody, Richard A Falcone
BACKGROUND: Appropriate and timely triage is an essential component of a trauma system. In the state of Ohio there are 6 verified pediatric trauma centers (PTC) across 8 state regions. The purpose of this study was to better understand the pediatric under-triage rates in the state. METHODS: We utilized the Ohio Trauma Registry from 2007 - 2012, consisting of 14,045 records of children < 16 years admitted to a hospital for greater than 48 hours or who sustained a traumatic death...
March 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28327620/correlation-between-ultrasound-elastography-and-histologic-characteristics-of-papillary-thyroid-carcinoma
#11
Li Yi, Wu Qiong, Wang Yan, Fan Youben, Hu Bing
The aim of this study was to investigate the correlation between elastography and histologic characteristics including fibrosis and calcification. We also wanted to investigate whether other clinicopathologic indexes influence the strain ratio (SR) of papillary thyroid carcinomas (PTCs). We retrospectively reviewed 126 papillary thyroid carcinomas (PTCs) from 103 patients who underwent ultrasonography and elastography before surgery. The histologic characteristics and clinicopathologic indexes were compared with the SR of ultrasound elastography (UE)...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28323937/tert-braf-and-nras-in-primary-thyroid-cancer-and-metastatic-disease
#12
Miguel Melo, Adriana Gaspar da Rocha, Rui Batista, João Vinagre, Maria João Martins, Gracinda Costa, Cristina Ribeiro, Francisco Carrilho, Valeriano Leite, Cláudia Lobo, José Manuel Cameselle-Teijeiro, Bruno Cavadas, Luísa Pereira, Manuel Sobrinho-Simões, Paula Soares
Context: Little is known about the frequency of key mutations in thyroid cancer metastases and its relationship with the primary tumor genotype. Objectives: To evaluate the frequency of TERT promoter (TERTp), BRAF and NRAS mutations in metastatic thyroid carcinomas, analyzing primary thyroid tumors, lymph node metastases (LNM) and distant metastases. Design and patients: Mutation analysis was performed in 437 tissue samples from 204 patients, mainly with papillary thyroid carcinomas (PTC) (n=180), including 196 LNM and 56 distant metastases...
March 6, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322827/structural-divergence-of-essential-triad-ribbon-synapse-proteins-among-placental-mammals-implications-for-preclinical-trials-in-photoreceptor-transplantation-therapy
#13
Christopher R J Laver, Joanne A Matsubara
As photoreceptor transplantation rapidly moves closer to the clinic, verifying graft efficacy in animal models may have unforeseen xenogeneic barriers. Although photoreceptor transplants have most convincingly exhibited functional synaptogenesis in conspecific studies, such evidence (while ruling out false-positives due to: viral graft labeling, fusion/cytosolic transfer, or neuroprotection) has not yet been shown for discordant xenografts. From this, a fundamental question should be raised: is useful xenosynaptogenesis likely between human photoreceptors and mouse retina? The triad ribbon synapse (TRS) that would normally form is unique and contains trans-synaptic proteins essential to its formation and function...
March 18, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28322393/assembly-of-titanium-oxo-cations-with-copper-halide-anions-to-form-supersalt-type-cluster-based-materials
#14
Wei-Hui Fang, Lei Zhang, Jian Zhang
A series of binary cluster-based crystalline materials consisting of the same cationic polyoxotitanium cluster (PTC) and different anionic copper halide clusters (CuX) have been prepared. Interestingly, these complexes display analogous structure types to inorganic salts and present various light absorption properties.
March 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28316221/-value-of-jugulo-omohyoid-lymph-nodes-in-predicting-lateral-cervical-occult-metastasis-in-patients-with-papillary-thyroid-carcinoma
#15
C M An, Y Wang, S X Wang, Y L Yin, M Q Chen, Z G Xu, P Z Tang, Z J Li
Objective: To investigate the value of jugulo-omohyoid lymph nodes (JOHLN) in predicting occult lateral cervical lymph node metastasis in patients with papillary thyroid carcinoma (PTC). Methods: The clinicopathological data of 136 out of 2 100 PTC patients, who had a high risk of lateral neck lymph node metastasis and treated by us from January 2010 to December 2015, were retrospectively analyzed. Super selective neck dissection (SSND, level Ⅲ and Ⅳ)was performed and JOHLNs were sent for frozen section in all the 136 cases...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28315434/identifying-the-clonal-relationship-model-of-multifocal-papillary-thyroid-carcinoma-by-whole-genome-sequencing
#16
Mao Xia, Hengyu Li, Qian Ma, Dong Yu, Jing Li, Yi Zhang, Yuan Sheng, Yingjun Guo
PURPOSE: To evaluate the application of whole genome sequencing (WGS) in determining the inter-foci clonal relationship of multifocal papillary thyroid carcinoma (mPTC). METHODS: After reviewing PTC patient profiles, 8 cancer foci and germline control samples from 3 mPTC patients were analyzed by WGS. Single nucleotide variations (SNVs), copy number variation (CNV), structural variation and mutational signature were examined. RESULTS: The multifocality rate of PTC was 35...
March 14, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28314770/cribriform-morular-variant-of-papillary-thyroid-carcinoma-a-distinctive-type-of-thyroid-cancer
#17
REVIEW
Alfred King-Yin Lam, Nassim Saremi
The aim of this systematic review is to study the features of cribriform-morular variant of papillary thyroid carcinoma (CMV-PTC) by analysing the 129 documented cases in the English literature. The disease occurred almost exclusively in women. The median age of presentation for CMV-PTC was 24 years. Slightly over half of the patients with CMV-PTC had familial adenomatous polyposis (FAP). CMV-PTC presented before the colonic manifestations in approximately half of the patients with FAP. Patients with FAP often have multifocal tumours in the thyroid...
April 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28302441/percutaneous-transhepatic-cholangiographic-endobiliary-forceps-biopsy-versus-endoscopic-ultrasound-fine-needle-aspiration-for-proximal-biliary-strictures-a-single-centre-experience
#18
Kayvan Mohkam, Yaseen Malik, Carlos Derosas, John Isaac, Ravi Marudanayagam, Homoyoon Mehrzad, Darius F Mirza, Paolo Muiesan, Keith J Roberts, Robert P Sutcliffe
BACKGROUND: Endoscopic ultrasound fine needle aspiration (EUS-FNA) and percutaneous transhepatic cholangiographic endobiliary forceps biopsy (PTC-EFB) are valid procedures for histological assessment of proximal biliary strictures (PBS), but their performances have never been compared. This study aimed to compare the diagnostic performance of these two techniques. METHOD: The diagnostic performances of EUS-FNA and PTC-EFB were compared in a retrospective cohort of patients assessed for PBS from 2011 to 2015 at a single tertiary centre...
March 13, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28297755/-expression-of-microrna-221-and-il-17-in-papillary-thyroid-carcinoma-and-correlation-with-clinicopathologic-features
#19
X L Jiang, H Zhang, Y L Chen, L Peng
Objective: To study the expression of microRNA-221(miR-221) and IL-17 in papillary thyroid carcinoma (PTC) and their roles in the carcinogenesis of PTC. Methods: Real-time RT-PCR, Western blot and immunohistochemistry (IHC) were used to detect the expression of miR-221 and IL-17 in 40 cases of PTC, 20 adjacent normal thyroid tissues and 20 cases of nodular goiter, and the correlation with clinicopathologic features was analyzed. Results: (1)The expression level of miR-221 was significantly higher in PTC compared with nodular goiter and adjacent normal thyroid tissue (P<0...
March 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28296267/can-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-be-distinguished-from-classic-papillary-thyroid-carcinoma-and-follicular-adenomas-by-fine-needle-aspiration
#20
Tamar C Brandler, Fang Zhou, Cheng Z Liu, Margaret Cho, Ryan P Lau, Aylin Simsir, Kepal N Patel, Wei Sun
BACKGROUND: Noninvasive encapsulated follicular variant of papillary thyroid carcinoma, a diagnosis implying malignancy as a variant of papillary thyroid carcinoma (PTC), has recently been reclassified to noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) on surgical pathology. Due to the effects of such a recategorization on rate of malignancy and clinical management algorithms, it is imperative that we explore whether presurgical fine-needle aspiration can differentiate NIFTP from PTC and follicular adenoma (FA)...
March 10, 2017: Cancer
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