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https://www.readbyqxmd.com/read/29156687/distribution-of-lymph-node-metastasis-from-lymphoepithelial-like-carcinoma-of-the-parotid
#1
LiNa Yin, Xue Huang, XiaoLan Liu, YongChun Zhang, Xiaoshen Wang
Purpose: To explore the distribution of node spread from lymphoepithelial-like carcinoma (LELC) of the parotid gland based on the 2013 updated guidelines for neck node levels. Results: 42 (58.3%) cases had metastatic nodes, all were localized at the ipsilateral neck. The detailed distribution was: level Ia 0, level Ib 6(14.3%), level II 34 (80.1%), level III 16 (38.1%), level IV 9 (21.4%), level V 7 (16.7%), level VI 0, level VII 0, level VIII 37 (88.1%), level IX 0, level Xa 2 (4...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29153448/evidence-of-disturbances-of-deep-levels-of-semantic-cohesion-within-personal-narratives-in-schizophrenia
#2
Jon A Willits, Timothy Rubin, Michael N Jones, Kyle S Minor, Paul H Lysaker
Since initial conceptualizations, schizophrenia has been thought to involve core disturbances in the ability to form complex, integrated ideas. Although this has been studied in terms of formal thought disorder, the level of involvement of altered latent semantic structure is less clear. To explore this question, we compared the personal narratives of adults with schizophrenia (n=200) to those produced by an HIV+ sample (n=55) using selected indices from Coh-Metrix. Coh-Metrix is a software system designed to compute various language usage statistics from transcribed written and spoken language documents...
November 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/29150083/ct-imaging-features-of-symptomatic-and-asymptomatic-floating-aortic-thrombus
#3
E Klang, A Kerpel, S Soffer, M Zlotnik, O Shimon, U Rimon, E Konen, M M Amitai
AIM: To present the computed tomography (CT) imaging features of floating aortic thrombus with emphasis on clinical and radiographic predictors for systemic shower emboli. MATERIALS AND METHODS: A retrospective computerised search for patients with protruding thoracic aortic thrombus on CT was conducted. Clinical and demographic characteristics were retrieved from medical files. Patients were divided into two groups: symptomatic and asymptomatic, based on the presence or absence of documented systemic emboli at the time of diagnosis or during follow-up...
November 14, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29143560/induced-pluripotent-stem-cells-derived-from-human-amnion-in-chemically-defined-conditions
#4
Jaroslav Slamecka, Steven McClellan, Anna Wilk, Javier Laurini, Elizabeth Manci, Simon P Hoerstrup, Benedikt Weber, Laurie Owen
Fetal stem cells are a unique type of adult stem cells that have been suggested to be broadly multipotent with some features of pluripotency. Their clinical potential has been documented but their upgrade to full pluripotency could open up a wide range of cell-based therapies particularly suited for pediatric tissue engineering, longitudinal studies or disease modeling. Here we describe episomal reprogramming of mesenchymal stem cells from the human amnion to pluripotency (AM-iPSC) in chemically defined conditions...
November 16, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29143375/an-immunoinformatics-approach-to-define-t-cell-epitopes-from-polyketide-and-non-ribosomal-peptide-synthesis-proteins-of-mycobacterium-tuberculosis-as-potential-vaccine-candidates
#5
S Dhivya, V Baskar, S R Kumar, R Sathishkumar
The role of polyketide and non-ribosomal proteins from the class of small molecule metabolism of Mycobacterium tuberculosis is well documented in envelope organization, virulence, and pathogenesis. Consequently, the identification of T cell epitopes from these proteins could serve to define potential antigens for the development of vaccines. Fourty-one proteins from polyketide and non-ribosomal peptide synthesis of small molecule metabolism proteins of M tuberculosis H37Rv were analyzed computationally for the presence of HLA class I binding nanomeric peptides...
November 16, 2017: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/29136463/benzo-b-thiophene-fusion-enhances-local-borepin-aromaticity-in-polycyclic-heteroaromatic-compounds
#6
Reid E Messersmith, Sangeeta Yadav, Maxime A Siegler, Henrik Ottosson, John D Tovar
This report documents the synthesis, characterization and computational evaluation of two isomeric borepin-containing polycyclic aromatics. The syntheses of these two isomers involved symmetrical disubstituted alkynes that were reduced to Z-olefins followed by borepin formation either through an isolable stannocycle intermediate or directly from the alkene via the trapping of a transient dilithio intermediate. Comparisons of their magnetic, crystallographic and computational characterization to literature compounds gave valuable insights about the aromaticity of these symmetrically fused [b,f]borepins...
November 14, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29131886/determinant-factors-for-arterial-hemodynamics-in-hypertension-theoretical-insights-from-a-computational-model-based-study
#7
Fuyou Liang, Debao Guan, Jordi Alastruey
Hypertension is a well-documented predictive factor for cardiovascular events. Clinical studies have extensively demonstrated the differential hemodynamic consequences of various anti-hypertensive drugs, but failed to clearly elucidate the underlying mechanisms due to the difficulty in performing a quantitative deterministic analysis based on clinical data that carry confounding information stemming from inter-patient differences and the nonlinearity of cardiovascular hemodynamics. In the present study, a multi-scale model of the cardiovascular system was developed to quantitatively investigate the relationships between hemodynamic variables and cardiovascular properties under hypertensive conditions, aiming to establish a theoretical basis for assisting in the interpretation of clinical observations or optimization of therapy...
November 13, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29121144/positron-emission-tomography-computed-tomography-based-assessments-of-androgen-receptor-expression-and-glycolytic-activity-as-a-prognostic-biomarker-for-metastatic-castration-resistant-prostate-cancer
#8
Josef J Fox, Somali C Gavane, Estelle Blanc-Autran, Sadek Nehmeh, Mithat Gönen, Brad Beattie, Hebert A Vargas, Heiko Schöder, John L Humm, Samson W Fine, Jason S Lewis, Stephen B Solomon, Joseph R Osborne, Darren Veach, Charles L Sawyers, Wolfgang A Weber, Howard I Scher, Michael J Morris, Steven M Larson
Importance: Androgen receptor-signaling inhibitor (ARSi) drugs prolong life in metastatic castration-resistant prostate cancer (mCRPC), but such tumors eventually become resistant and progress. Comprehensive positron emission tomography/computed tomography (PET/CT) imaging using fluoro-2-D-deoxyglucose F 18 ([18F]-FDG) for glycolysis (Glyc) and fluorodihydrotestosterone F 18 ([18F]-FDHT) for androgen receptor (AR) expression determine heterogeneity of imaging phenotypes, which may be useful in distinguishing patients who will benefit from ARSi drugs from those who need alternative treatments...
November 9, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29119921/design-and-delivery-of-therapeutic-sirnas-application-to-mers-coronavirus
#9
Sayed Sartaj Sohrab, Sherif Aly El-Kafrawy, Zeenat Mirza, Mohammad Amjad Kamal, Esam Ibraheem Azhar
BACKGROUND: The MERS-CoV is a novel human coronavirus causing respiratory syndrome since April 2012. The replication of MERS-CoV is mediated by ORF 1ab and viral gene activity can be modulated by RNAi approach. The inhibition of virus replication has been documented in cell culture against multiple viruses by RNAi approach. Currently, very few siRNA against MERS-CoV have been computationally designed and published. METHODS: In this review, we have discussed the computationally designing and delivery of potential siRNAs...
November 8, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29119305/the-development-and-psychometric-properties-of-the-immigration-law-concerns-scale-ilcs-for-hiv-testing
#10
Julia Lechuga, Carol L Galletly, Michelle R Broaddus, Julia B Dickson-Gomez, Laura R Glasman, Timothy L McAuliffe, Miriam Y Vega, Sarah LeGrand, Carla A Mena, Morgan L Barlow, Erik Valera, Judith I Montenegro
To develop, pilot test, and conduct psychometric analyses of an innovative scale measuring the influence of perceived immigration laws on Latino migrants' HIV-testing behavior. The Immigration Law Concerns Scale (ILCS) was developed in three phases: Phase 1 involved a review of law and literature, generation of scale items, consultation with project advisors, and subsequent revision of the scale. Phase 2 involved systematic translation- back translation and consensus-based editorial processes conducted by members of a bilingual and multi-national study team...
November 8, 2017: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/29118612/distributional-records-of-antarctic-and-sub-antarctic-ophiuroidea-from-samples-curated-at-the-italian-national-antarctic-museum-mna-check-list-update-of-the-group-in-the-terra-nova-bay-area-ross-sea-and-launch-of-the-mna-3d-model-virtual-gallery
#11
Matteo Cecchetto, Maria Chiara Alvaro, Claudio Ghiglione, Alice Guzzi, Claudio Mazzoli, Paola Piazza, Stefano Schiaparelli
The distributional records of Ophiuroidea stored at the Italian National Antarctic Museum (MNA, Section of Genoa) are presented, corresponding to 1595 individuals that belong to 35 species and 17 genera. Specimens were collected in 106 different sampling stations at depths ranging from 21 to 1652 m in the framework of 14 Antarctic expeditions to the Ross Sea, one to the Antarctic Peninsula, and one to the Falkland Islands (Islas Malvinas). Three species, Amphiura joubini Koehler, 1912, Amphiura (Amphiura) angularis Lyman, 1879, and Ophiura flexibilis (Koehler, 1911), are reported as new records for the Terra Nova Bay area, whose check-list of species increases from 15 to 18 species...
2017: ZooKeys
https://www.readbyqxmd.com/read/29112962/increasing-prevalence-of-diabetes-mellitus-in-a-developing-country-and-its-related-factors
#12
Worku Animaw, Yeshaneh Seyoum
BACKGROUND: All countries, irrespective of their developmental stage, face an increasing burden of non-communicable diseases including diabetes mellitus. There is substantial evidence of the existence of the gap in the level of diabetes mellitus and its complications prevention and control measures in developing countries. This study aimed to assess the prevalence of diabetes mellitus in urban and rural dwellers in a low-income country from both younger and older population and to identify factors related...
2017: PloS One
https://www.readbyqxmd.com/read/29110219/reduction-and-fixation-of-displaced-u-shaped-sacral-fractures-using-lumbopelvic-fixation-technical-recommendations
#13
Stefan Piltz, Bianka Rubenbauer, Wolfgang Böcker, Heiko Trentzsch
PURPOSE: U-shaped sacral fractures are extremely rare injuries that usually occur as a result of falls from considerable heights. Almost all treatment methods described to date aim solely at stabilizing the fracture but do not contribute to supporting the reduction of such fractures. Using existing implants the purpose of this study is to present a surgical technique that facilitates both the reduction and the stabilization of these injuries. The presented technique was evaluated in a series of three cases...
November 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29101216/educational-inequalities-in-falls-mortality-among-older-adults-population-based-multiple-cause-of-death-data-from-sweden
#14
Aliasghar Ahmad Kiadaliri, Aleksandra Turkiewicz, Martin Englund
BACKGROUND: Falls are the leading cause of fatal injuries among elderly adults. While socioeconomic status including education is a well-documented predictor of many individual health outcomes including mortality, little is known about socioeconomic inequalities in falls mortality among adults. This study aimed to assess educational inequalities in falls mortality among older adults in Sweden using multiple cause of death data. METHODS: All residents aged 50‒75 years in the Skåne region, Sweden, during 1998‒2013 (n=566 478) were followed until death, relocation outside Skåne or end of 2014...
November 3, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/29092951/computational-radiomics-system-to-decode-the-radiographic-phenotype
#15
Joost J M van Griethuysen, Andriy Fedorov, Chintan Parmar, Ahmed Hosny, Nicole Aucoin, Vivek Narayan, Regina G H Beets-Tan, Jean-Christophe Fillion-Robin, Steve Pieper, Hugo J W L Aerts
Radiomics aims to quantify phenotypic characteristics on medical imaging through the use of automated algorithms. Radiomic artificial intelligence (AI) technology, either based on engineered hard-coded algorithms or deep learning methods, can be used to develop noninvasive imaging-based biomarkers. However, lack of standardized algorithm definitions and image processing severely hampers reproducibility and comparability of results. To address this issue, we developed PyRadiomics, a flexible open-source platform capable of extracting a large panel of engineered features from medical images...
November 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/29092940/dinc-2-0-a-new-protein-peptide-docking-webserver-using-an-incremental-approach
#16
Dinler A Antunes, Mark Moll, Didier Devaurs, Kyle R Jackson, Gregory Lizée, Lydia E Kavraki
Molecular docking is a standard computational approach to predict binding modes of protein-ligand complexes by exploring alternative orientations and conformations of the ligand (i.e., by exploring ligand flexibility). Docking tools are largely used for virtual screening of small drug-like molecules, but their accuracy and efficiency greatly decays for ligands with more than 10 flexible bonds. This prevents a broader use of these tools to dock larger ligands, such as peptides, which are molecules of growing interest in cancer research...
November 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/29092937/an-accessible-proteogenomics-informatics-resource-for-cancer-researchers
#17
Matthew C Chambers, Pratik D Jagtap, James E Johnson, Thomas McGowan, Praveen Kumar, Getiria Onsongo, Candace R Guerrero, Harald Barsnes, Marc Vaudel, Lennart Martens, Björn Grüning, Ira R Cooke, Mohammad Heydarian, Karen L Reddy, Timothy J Griffin
Proteogenomics has emerged as a valuable approach in cancer research, which integrates genomic and transcriptomic data with mass spectrometry-based proteomics data to directly identify expressed, variant protein sequences that may have functional roles in cancer. This approach is computationally intensive, requiring integration of disparate software tools into sophisticated workflows, challenging its adoption by nonexpert, bench scientists. To address this need, we have developed an extensible, Galaxy-based resource aimed at providing more researchers access to, and training in, proteogenomic informatics...
November 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/29092928/the-isb-cancer-genomics-cloud-a-flexible-cloud-based-platform-for-cancer-genomics-research
#18
Sheila M Reynolds, Michael Miller, Phyliss Lee, Kalle Leinonen, Suzanne M Paquette, Zack Rodebaugh, Abigail Hahn, David L Gibbs, Joseph Slagel, William J Longabaugh, Varsha Dhankani, Madelyn Reyes, Todd Pihl, Mark Backus, Matthew Bookman, Nicole Deflaux, Jonathan Bingham, David Pot, Ilya Shmulevich
The ISB Cancer Genomics Cloud (ISB-CGC) is one of three pilot projects funded by the National Cancer Institute to explore new approaches to computing on large cancer datasets in a cloud environment. With a focus on Data as a Service, the ISB-CGC offers multiple avenues for accessing and analyzing The Cancer Genome Atlas, TARGET, and other important references such as GENCODE and COSMIC using the Google Cloud Platform. The open approach allows researchers to choose approaches best suited to the task at hand: from analyzing terabytes of data using complex workflows to developing new analysis methods in common languages such as Python, R, and SQL; to using an interactive web application to create synthetic patient cohorts and to explore the wealth of available genomic data...
November 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/29089800/staging-and-surgical-approaches-in-gastric-cancer-a-clinical-practice-guideline
#19
N Coburn, R Cosby, L Klein, G Knight, R Malthaner, J Mamazza, C D Mercer, J Ringash
BACKGROUND: Resection is the cornerstone of cure for gastric adenocarcinoma; however, several aspects of surgical intervention remain controversial or are suboptimally applied at a population level, including staging, extent of lymphadenectomy (lnd), minimum number of lymph nodes that have to be assessed, gross resection margins, use of minimally invasive surgery, and relationship of surgical volumes with patient outcomes and resection in stage iv gastric cancer. METHODS: Literature searches were conducted in databases including medline (up to 10 June 2016), embase (up to week 24 of 2016), the Cochrane Library and various other practice guideline sites and guideline developer Web sites...
October 2017: Current Oncology
https://www.readbyqxmd.com/read/29089682/ct-guided-radiofrequency-ablation-in-osteoid-osteoma-result-from-a-tertiary-cancer-centre-in-india
#20
Suyash S Kulkarni, Nitin S Shetty, Ashwin M Polnaya, Amit Janu, Suresh Kumar, Ajay Puri, Ashish Gulia, Venkatesh Rangarajan
AIMS: The aim of this study is to evaluate the clinical efficacy of computed tomography (CT)-guided radiofrequency (RF) ablation as a minimally invasive therapy for osteoid osteoma. MATERIALS AND METHODS: This is a retrospective analysis of prospectively maintained data of 43 symptomatic osteoid osteoma patients who were treated by radiofrequency ablation (RFA). Forty out of 43 patients were naive cases and underwent primary treatment for osteoid osteoma with RFA, whereas 3 patients included in the study underwent RFA for local recurrence after having undergone surgical treatment...
July 2017: Indian Journal of Radiology & Imaging
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