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https://www.readbyqxmd.com/read/29333121/minimally-invasive-electrochemotherapy-procedure-for-treating-nasal-duct-tumors-in-dogs-using-a-single-needle-electrode
#1
Felipe Maglietti, Matías Tellado, Nahuel Olaiz, Sebastian Michinski, Guillermo Marshall
Background: Nasal cavity tumors are usually diagnosed late, when they already have infiltrated adjacent tissues thus requiring very aggressive treatments with serious side effects. Here we use electrochemotherapy (ECT), a well demonstrated treatment modality for superficial tumors. Materials and methods: In the case of deep-seated tumors, the main limitation of ECT is reaching the tumor with an appropriate electric field. To overcome this limitation we introduce the single needle electrode (SiNE), a minimally invasive device that can deliver an appropriate electric field with a simple procedure...
December 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/29328107/modulation-transfer-function-of-liquid-crystal-microlenses-and-microprisms-using-double-dielectric-layer
#2
Oleksandr Sova, Victor Reshetnyak, Tigran Galstian
We investigate electrically tunable liquid crystal (LC) microlenses and microprisms based on double dielectric optically hidden (DDOH) layers. Comparative theoretical study of the spatial resolution limits in the creation of a spatially modulated electric field by the DDOH layer is conducted. Both the depth of the resulting optical phase modulation and its deviation from the desired wavefront are obtained for sine and sawtooth geometries of the DDOH layer's structure. A comparison is provided with the standard LC reorientation approach using patterned electrodes...
January 1, 2018: Applied Optics
https://www.readbyqxmd.com/read/29325122/lines-contribute-to-the-origins-of-middle-bodies-of-sines-besides-3-tails
#3
Kenji K Kojima
Short interspersed elements (SINEs), which are non-autonomous transposable elements, require the transposition machinery of long interspersed elements (LINEs) to mobilize. SINEs are composed of two or more independently originating parts. The 5' region is called the "head" and is derived mainly from small RNAs, and the 3' region ("tail") originates from the 3' region of LINEs and is responsible for being recognized by counterpart LINE proteins. The origin of the middle "body" of SINEs is enigmatic, although significant sequence similarities among SINEs from very diverse species have been observed...
January 9, 2018: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29322341/interstitial-lung-disease-in-systemic-sclerosis-data-from-the-spanish-scleroderma-study-group
#4
D Sánchez-Cano, N Ortego-Centeno, J L Callejas, V Fonollosa Plá, R Ríos-Fernández, C Tolosa-Vilella, G Espinosa-Garriga, D Colunga-Argüelles, M V Egurbide-Arberas, M Rubio-Rivas, M Freire, J J Ríos-Blanco, L Trapiella-Martínez, M Rodríguez-Carballeira, A Marín-Ballvé, X Pla-Salas, C P Simeón-Aznar
OBJECTIVES: To evaluate the clinical characteristics of patients with interstitial lung disease (ILD) in the setting of a large cohort of systemic sclerosis (SSc) patients, and to analyse the differences according to the SSc subtype (following the modification of classification criteria of the American College of Rheumatology for SSc proposed by LeRoy and Medsger), factors are associated with moderate-to-severe impairment of lung function, as well as mortality and causes of death. METHODS: A descriptive study was performed, using the available data from the Spanish Scleroderma Study Group...
January 10, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29320490/the-glutamine-synthetase-of-trypanosoma-cruzi-is-required-for-its-resistance-to-ammonium-accumulation-and-evasion-of-the-parasitophorous-vacuole-during-host-cell-infection
#5
Marcell Crispim, Flávia Silva Damasceno, Agustín Hernández, María Julia Barisón, Ismael Pretto Sauter, Raphael Souza Pavani, Alexandre Santos Moura, Elizabeth Mieko Furusho Pral, Mauro Cortez, Maria Carolina Elias, Ariel Mariano Silber
Trypanosoma cruzi, the etiological agent of Chagas disease, consumes glucose and amino acids depending on the environmental availability of each nutrient during its complex life cycle. For example, amino acids are the major energy and carbon sources in the intracellular stages of the T. cruzi parasite, but their consumption produces an accumulation of NH4+ in the environment, which is toxic. These parasites do not have a functional urea cycle to secrete excess nitrogen as low-toxicity waste. Glutamine synthetase (GS) plays a central role in regulating the carbon/nitrogen balance in the metabolism of most living organisms...
January 10, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29316898/inhibition-of-p38-mapk-activity-leads-to-cell-type-specific-effects-on-the-molecular-circadian-clock-and-time-dependent-reduction-of-glioma-cell-invasiveness
#6
Charles S Goldsmith, Sam Moon Kim, Nirmala Karunarathna, Nichole Neuendorff, L Gerard Toussaint, David J Earnest, Deborah Bell-Pedersen
BACKGROUND: The circadian clock is the basis for biological time keeping in eukaryotic organisms. The clock mechanism relies on biochemical signaling pathways to detect environmental stimuli and to regulate the expression of clock-controlled genes throughout the body. MAPK signaling pathways function in both circadian input and output pathways in mammals depending on the tissue; however, little is known about the role of p38 MAPK, an established tumor suppressor, in the mammalian circadian system...
January 10, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29314045/expression-and-functional-analysis-of-two-psbs-genes-in-bamboo-phyllostachys-edulis
#7
Yongfeng Lou, Huayu Sun, Sining Wang, Hao Xu, Lichao Li, Hansheng Zhao, Zhimin Gao
Higher plants have an array of photoprotection mechanisms alleviating the harmful effects of light. Non-photochemical quenching (NPQ) is one of the photoprotective mechanisms, which dissipates the excess of light energy absorbed in the light-harvesting complexes (LHCs) into thermal energy. The PsbS (photosystem II subunit S), a member of the LHC family thought to be present exclusively in higher plants, is supposed to activate NPQ through interactions with antenna proteins. However, the roles of PsbS in bamboo remain unclear...
January 4, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29313273/metabolic-syndrome-in-psoriatic-arthritis-the-interplay-with-cutaneous-involvement-evidences-from-literature-and-a-recent-cross-sectional-study
#8
Francesco Caso, Antonio Del Puente, Francesca Oliviero, Rosario Peluso, Nicolò Girolimetto, Paolo Bottiglieri, Francesca Foglia, Carolina Benigno, Marco Tasso, Leonardo Punzi, Raffaele Scarpa, Luisa Costa
The aim of this study was to evaluate the prevalence of MetS and its components and the level of serum uric acid in patients with PsA and in those with PsA sine psoriasis. A secondary aim of the study was to investigate on correlations of MetS in all study population. Consecutive PsA patients underwent assessment of disease activity and metabolic parameters. Blood samples were collected after 12 h of overnight fasting and analyzed for glucose, lipid profile, serum uric acid, and acute-phase reactants. The NCEP-ACT III criteria were used to identify subjects with MetS...
January 8, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29310867/motor-practice-in-a-force-modulation-task-in-young-and-middle-aged-adults
#9
Ben Godde, Mireille Trautmann, Peter Erhard, Claudia Voelcker-Rehage
Learning new motor skills is important for everyday life and independent living in older age. While studies on motor sequence learning and motor adaptation revealed age differences that are mostly related to frontal decline with increasing age, data for fine finger force modulation are missing. Twelve young (YA, 18-28 years) and twelve middle-aged older (OA, 55-65 years) adults practiced a force modulation task in precision grip while lying in a 3T MR scanner. Participants followed a sine wave between 5 and 25% of their maximum voluntary contraction (MVC) at a frequency of 0...
December 24, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29306843/early-thawing-after-snow-removal-and-no-straw-mulching-accelerates-organic-carbon-cycling-in-a-paddy-soil-in-northeast-china
#10
Hao Zhang, Jie Tang, Shuang Liang, Zhaoyang Li, Jingjing Wang, Sining Wang
Variations in soil organic carbon (SOC) have implications for atmospheric CO2 concentrations and the greenhouse effect. However, the effects of snow cover and straw mulching on the variations in SOC fractions across winter remain largely unknown. In this study, soil samples were collected during different stages of winter from an in situ experiment comprising three treatments: 1) snow removal with no straw mulching (Sn-SM-); 2) snow cover with no straw mulching (SC), and; 3) snow cover with straw mulching (SC + SM+)...
January 4, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29305245/home-parenteral-nutrition-increases-fat-free-mass-in-patients-with-incurable-gastrointestinal-cancer-results-of-a-randomized-controlled-trial
#11
Sine Roelsgaard Obling, Benedicte Vibjerg Wilson, Per Pfeiffer, Jens Kjeldsen
OBJECTIVE: Preventing loss of muscle mass and function is an enduring challenge in malnourished patients with incurable cancer. The benefit of supplemental home parenteral nutrition has not been firmly established. Our aim was to evaluate the effects of supplemental home parenteral nutrition, the primary endpoint being fat free mass (FFM) and secondary: muscle function, quality of life and overall survival. DESIGN AND METHODS: In a single centre open-label randomised controlled trial, patients with incurable gastrointestinal cancer, nutritionally at risk, were randomly assigned to either; a) best practice nutritional care and dietetic counselling (non-sHPN) or b) dietetic counselling and supplemental home parenteral nutrition (sHPN group)...
December 21, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29304161/natural-convection-heat-transfer-in-an-oscillating-vertical-cylinder
#12
Ilyas Khan, Nehad Ali Shah, Asifa Tassaddiq, Norzieha Mustapha, Seripah Awang Kechil
This paper studies the heat transfer analysis caused due to free convection in a vertically oscillating cylinder. Exact solutions are determined by applying the Laplace and finite Hankel transforms. Expressions for temperature distribution and velocity field corresponding to cosine and sine oscillations are obtained. The solutions that have been obtained for velocity are presented in the forms of transient and post-transient solutions. Moreover, these solutions satisfy both the governing differential equation and all imposed initial and boundary conditions...
2018: PloS One
https://www.readbyqxmd.com/read/29301752/t-cell-responses-in-the-microenvironment-of-primary-renal-cell-carcinoma-implications-for-adoptive-cell-therapy
#13
Rikke Andersen, Marie Christine Wulff Westergaard, Julie Westerlin Kjeldsen, Anja Mueller, Natasja Wulff Pedersen, Sine Reker Hadrup, Ozcan Met, Barbara Seliger, Bjarne Kromann-Andersen, Thomas Hasselager, Marco Donia, Inge Marie Svane
In vitro expansion of large numbers of highly potent tumor-reactive T cells appears a prerequisite for effective adoptive cell therapy (ACT) with autologous tumor-infiltrating lymphocytes (TIL) as shown in metastatic melanoma (MM). We therefore sought to determine whether renal cell carcinomas (RCC) are infiltrated with tumor-reactive T cells that could be efficiently employed for adoptive transfer immunotherapy. TILs and autologous tumor cell lines (TCLs) were successfully generated from 22 (92%) and 17 (77%) of 24 consecutive primary RCC specimens and compared to those generated from MM...
January 4, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29301509/assessment-of-pirna-biogenesis-and-function-in-testicular-germ-cell-tumors-and-their-precursor-germ-cell-neoplasia-in-situ
#14
Ildar V Gainetdinov, Yulia V Skvortsova, Sofia A Kondratieva, Alexey Klimov, Alexey A Tryakin, Tatyana L Azhikina
BACKGROUND: Aberrant overexpression of PIWI/piRNA pathway proteins is shown for many types of tumors. Interestingly, these proteins are downregulated in testicular germ cell tumors (TGCTs) compared to normal testis tissues. Here, we used germline and TGCT markers to assess the piRNA biogenesis and function in TGCTs and their precursor germ cell neoplasia in situ (GCNIS). METHODS: We used small RNA deep sequencing, qRT-PCR, and mining public RNAseq/small RNA-seq datasets to examine PIWI/piRNA gene expression and piRNA biogenesis at four stages of TGCT development: (i) germ cells in healthy testis tissues, (ii) germ cells in testis tissues adjacent to TGCTs, (iii) GCNIS cells and (iv) TGCT cells...
January 4, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29299164/xpo1-target-occupancy-measurements-confirm-the-selinexor-recommended-phase-2-dose
#15
Marsha L Crochiere, Stefan Hannus, Kerrin Hansen, Frank Becker, Erkan Baloglu, Margaret Lee, Michael Kauffman, Sharon Shacham, Yosef Landesman
XPO1 (exportin 1) is the main nuclear export protein with over 200 different protein cargos. XPO1 is overexpressed in tumor cells and high levels are correlated with poor prognosis. Selective Inhibitor of Nuclear Export (SINE) compounds block nuclear export by inhibiting XPO1. The first SINE compound, selinexor, shows promising anti-cancer activity across hematological and solid tumors in Phase 2 and 3 clinical trials. The 2nd generation SINE compound KPT-8602 is being evaluated as an anti-cancer agent in a Phase 1 clinical trial...
December 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/29289167/optimal-design-of-a-%C3%AE-760-mm-lightweight-sic-mirror-and-the-flexural-mount-for-a-space-telescope
#16
Zongxuan Li, Xue Chen, Shaoju Wang, Guang Jin
A flexural support technique for lightweighted Primary Mirror Assembly (PMA) of a space telescope is presented in this article. The proposed three-point flexural mount based on a cartwheel flexure can maintain the surface figure of the PMA in a horizontal optical testing layout. The on-orbit surface error of the PMA causes significant degradation in image quality. On-ground optical testing cannot determine the zero-gravity figure of the PMA due to surface distortion by gravity. We unveiled the crucial fact that through a delicate mounting structure design, the surface figure can remain constant precisely without inducing distinguishable astigmatism when PMA rotates with respect to the optical axis, and the figure can be considered as the zero-gravity surface figure on the orbit...
December 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29289073/effect-of-carrier-bandwidth-on-integration-of-simulations-of-acoustic-and-electric-hearing-within-or-across-ears
#17
Qian-Jie Fu, John J Galvin, Xiaosong Wang
Differences in current spread and/or spread of excitation may differently affect integration of acoustic and electric hearing within (electric-acoustic stimulation, or EAS) or across ears (bimodal). In this study, vowel recognition was measured in normal-hearing subjects listening to simulations of cochlear implant (CI), EAS, and bimodal listening. Residual acoustic hearing was limited between 0.1 and 0.6 kHz. The carrier bandwidth in the CI simulations was varied across carriers: broad-band noise, narrow-band noise, and sine waves...
December 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29281042/seed-germination-in-parasitic-plants-what-insights-can-we-expect-from-strigolactone-research
#18
Guillaume Brun, Lukas Braem, Séverine Thoiron, Kris Gevaert, Sofie Goormachtig, Philippe Delavault
Obligate root parasitic plants belonging to the Orobanchaceae family are deadly pests for major crops all over the world. Because these heterotrophic plants severely damage their hosts even before emerging from the soil, there is an unequivocal need to design early and efficient control methods. Their germination process has probably undergone numerous selective pressure events along evolution, in that the perception of host-derived molecules is a sine qua non condition for seeds to germinate. Although most of these molecules belong to the strigolactones, structurally different molecules have been identified...
December 21, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29259110/a-growing-microcolony-can-survive-and-support-persistent-propagation-of-virulent-phages
#19
Rasmus Skytte Eriksen, Sine L Svenningsen, Kim Sneppen, Namiko Mitarai
Bacteria form colonies and secrete extracellular polymeric substances that surround the individual cells. These spatial structures are often associated with collaboration and quorum sensing between the bacteria. Here we investigate the mutual protection provided by spherical growth of a monoclonal colony during exposure to phages that proliferate on its surface. As a proof of concept we exposed growing colonies of Escherichia coli to a virulent mutant of phage P1. When the colony consists of less than [Formula: see text]50,000 members it is eliminated, while larger initial colonies allow long-term survival of both phage-resistant mutants and, importantly, colonies of mostly phage-sensitive members...
December 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29258795/esophageal-symptoms-and-their-lack-of-association-with-high-resolution-manometry-in-systemic-sclerosis-patients
#20
Ana Cecilia Arana-Guajardo, Gustavo Barrera-Torres, Miguel Ángel Villarreal-Alarcón, David Vega-Morales, Jorge Antonio Esquivel-Valerio
BACKGROUND: The esophageal involvement in systemic sclerosis (SSc) causes impact in the morbidity and mortality. High resolution manometry assesses esophageal involvement. Our aim was to categorize esophageal motor disorder in patients with SSc by HRM. METHODS: We carried out an observational, descriptive and cross-sectional study. All patients underwent HRM as well as semi-structured interviews to assess frequency and severity of upper GI symptoms. Patients also completed the gastroesophageal reflux questionnaire (Carlsson-Dent)...
December 16, 2017: Reumatología Clinica
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