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https://www.readbyqxmd.com/read/28339776/effect-of-acute-millimeter-wave-exposure-on-dopamine-metabolism-of-ngf-treated-pc12-cells
#1
Alexis J Haas, Yann Le Page, Maxim Zhadobov, Ronan Sauleau, Yves Le Dréan, Christian Saligaut
Several forthcoming wireless telecommunication systems will use electromagnetic frequencies at millimeter waves (MMWs), and technologies developed around the 60-GHz band will soon know a widespread distribution. Free nerve endings within the skin have been suggested to be the targets of MMW therapy which has been used in the former Soviet Union. So far, no studies have assessed the impact of MMW exposure on neuronal metabolism. Here, we investigated the effects of a 24-h MMW exposure at 60.4 GHz, with an incident power density (IPD) of 5 mW/cm², on the dopaminergic turnover of NGF-treated PC12 cells...
February 24, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28339486/a-top-down-manner-based-dcnn-architecture-for-semantic-image-segmentation
#2
Kai Qiao, Jian Chen, Linyuan Wang, Lei Zeng, Bin Yan
Given their powerful feature representation for recognition, deep convolutional neural networks (DCNNs) have been driving rapid advances in high-level computer vision tasks. However, their performance in semantic image segmentation is still not satisfactory. Based on the analysis of visual mechanism, we conclude that DCNNs in a bottom-up manner are not enough, because semantic image segmentation task requires not only recognition but also visual attention capability. In the study, superpixels containing visual attention information are introduced in a top-down manner, and an extensible architecture is proposed to improve the segmentation results of current DCNN-based methods...
2017: PloS One
https://www.readbyqxmd.com/read/28339479/mouse-newborn-cells-allow-highly-productive-mouse-cytomegalovirus-replication-constituting-a-novel-convenient-primary-cell-culture-system
#3
Vu Thuy Khanh Le-Trilling, Mirko Trilling
Mammalian cell culture is indispensable for most aspects of current biomedical research. Immortalized cell lines are very convenient, but transforming principles (e.g. oncogenic viruses or their oncogenes) can heavily influence the experimental outcome. Primary cells do not share this apparent disadvantage but are more laborious to generate. Certain viruses (e.g. mouse cytomegalovirus) do not replicate efficiently in most transformed cell lines. In the past, such viruses have been routinely propagated on primary mouse embryonic fibroblasts (MEF) established around day 17 (d17) of gestation...
2017: PloS One
https://www.readbyqxmd.com/read/28339190/luminescent-zn-ii-coordination-polymers-for-highly-selective-sensing-of-cr-iii-and-cr-vi-in-water
#4
Tian-Yi Gu, Ming Dai, David James Young, Zhi-Gang Ren, Jian-Ping Lang
Three photoluminescent zinc coordination polymers (CPs), {[Zn2(tpeb)2(2,5-tdc)(2,5-Htdc)2]·2H2O}n (1), {[Zn2(tpeb)2(1,4-ndc)(1,4-Hndc)2]·2.6H2O}n (2), and {[Zn2(tpeb)2(2,3-ndc)2]·H2O}n (3) (tpeb = 1,3,5-tri-4-pyridyl-1,2-ethenylbenzene, 2,5-tdc = 2,5-thiophenedicarboxylic acid, 1,4-ndc = 1,4-naphthalenedicarboxylic acid, and 2,3-ndc = 2,3-naphthalenedicarboxylic acid) were prepared from reactions of Zn(NO3)2·6H2O with tpeb and 2,5-H2tdc, 1,4-H2ndc, or 2,3-H2ndc under solvothermal conditions. Compound 1 has a two-dimensional (2D) grid-like network formed from bridging 1D [Zn(tpeb)]n chains via 2,5-tdc dianions...
March 24, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28337895/use-of-supercharged-cover-screw-as-static-magnetic-field-generator-for-bone-healing-1st-part-in-vitro-enhancement-of-osteoblast-like-cell-differentiation
#5
F Bambini, A Santarelli, A Putignano, M Procaccini, G Orsini, L Memè, D Sartini, M Emanuelli, L Lo Muzio
Since 1979, Pulsed electromagnetic fields (PEMFs) have been approved by the Food and Drug Administration as an effective method in the treatment of non-unions. As well as PEMFs, also static magnetic fields (SMFs) have been widely investigated in orthopaedic studies. Even if the exact mechanism of action is not well understood, a large number of studies showed specific effects both at cellular and tissue levels. As bone fracture healing and osseointegration share the same biological events, the application of magnetic field stimulation in order to facilitate the osseointegration process has been suggested...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337118/toxicological-risk-at-workplace-and-toxicity-as-life-cycle-assessment-impact-category-substitution-of-solvents-as-an-example
#6
Thomas Schupp, Philipp Alexander Georg, Guenter Kirstein
Substitution of hazardous substances against less hazardous ones is a central requirement of the European Chemical Regulation REACH (European Regulation 1907/2006/EC). Hazardous substances emitted from products may not only affect the worker; drift off and distribution in the environment may finally result in exposure of the general population. This potential threat to health is covered by the impact category "toxicity" in Life Cycle Assessments. In this paper, we present a case of a substitution of volatile organic compounds in a reactive varnish, and compare the "old" formulation with the "new" formulation against health risk to the worker, and concerning the Life Cycle Assessment impact category "toxicity"...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28336103/25-hydroxyvitamin-d-is-differentially-associated-with-calcium-intakes-of-northern-central-and-southern-european-adolescents-results-from-the-helena-study
#7
Cristina Julian, Marcela González-Gross, Christina Breidenassel, Theodora Mouratidou, Germán Vicente-Rodriguez, Luis Gracia-Marco, Marika Ferrari, Kurt Widhalm, Dénes Molnár, Anthony Kafatos, Frederic Gottrand, Yannis Manios, Alejandro de la O, Mathilde Kersting, Stefaan De Henauw, Marc J Gunter, Luis A Moreno, Inge Huybrechts
OBJECTIVES: Adolescents in the European Union (EU) exhibit a higher prevalence of vitamin D (VitD) deficiency than other age groups. The degree to which sunlight exposure 25-hydroxyvitamin D [25(OH)D] concentrations depends on a variety of factors, including diet. Nevertheless, the relationship between calcium and VitD intake and 25(OH)D concentrations has not been previously studied among adolescents living in different EU countries and consequently in different latitudes. Therefore, the aim of this study was to examine whether calcium and VitD intakes are differentially associated with 25(OH)D in adolescents from northern, central and southern EU countries...
April 2017: Nutrition
https://www.readbyqxmd.com/read/28335722/generalizing-cell-segmentation-and-quantification
#8
Zhenzhou Wang, Haixing Li
BACKGROUND: In recent years, the microscopy technology for imaging cells has developed greatly and rapidly. The accompanying requirements for automatic segmentation and quantification of the imaged cells are becoming more and more. After studied widely in both scientific research and industrial applications for many decades, cell segmentation has achieved great progress, especially in segmenting some specific types of cells, e.g. muscle cells. However, it lacks a framework to address the cell segmentation problems generally...
March 23, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28335618/aav-an-overview-of-unanswered-questions
#9
Kenneth I Berns, Nicholas Muzyczka
Today AAV is one of the most promising and successful gene therapy vectors. AAV vectors have been successful in the treatment of several monogenic diseases in early clinical trials1. Although work in the past has focused primarily on gene replacement, many investigators are now adapting the vector system to new clinical modalities including RNAi and gene modifying strategies such as Crisper/cas91. Moreover, Glybera2 has been licensed for clinical use in the European Union for treatment of a lysosomal storage disease...
March 23, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28335610/rheumatoid-forefoot-reconstruction-in-the-nonrheumatoid-patient
#10
Devon C Nixon, Richard M McKean, Sandra E Klein, Jeffrey E Johnson, Jeremy J McCormick
BACKGROUND: Recurrent pain and deformity following forefoot surgery can cause significant patient disability. In patients with rheumatoid arthritis, first metatarsophalangeal (MTP) joint arthrodesis with lesser metatarsal head resections-termed the rheumatoid forefoot reconstruction-has been shown to be a reliable operation for pain relief and deformity correction. Limited data, however, have been published on outcomes of the same forefoot reconstruction operation in the nonrheumatoid patient...
March 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28335565/an-eco-safety-assessment-of-glyoxal-containing-cellulose-ether-on-freeze-dried-microbial-strain-cyanobacteria-daphnia-and-zebrafish
#11
Chang-Beom Park, Min Ju Song, Nak Woon Choi, Sunghoon Kim, Hyun Pyo Jeon, Sanghun Kim, Youngjun Kim
The objective of this study was to investigate the aquatic-toxic effects of glyoxal-containing cellulose ether with four different glyoxal concentrations (0%, 1.4%, 2.3%, and 6.3%) in response to global chemical regulations, e.g., European Union Classification, Labeling and Packaging (EU CLP). Toxicity tests of glyoxal-containing cellulose ether on 11 different microbial strains, Microcystis aeruginosa, Daphnia magna, and zebrafish embryos were designed as an initial stage of toxicity screening and performed in accordance with standardized toxicity test guidelines...
March 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28335057/white-paper-curriculum-in-interventional-radiology
#12
Andreas H Mahnken, Arno Bücker, Christian Hohl, Ansgar Berlis
Purpose Scope and clinical importance of interventional radiology markedly evolved over the last decades. Consequently it was acknowledged as independent subspecialty by the "European Union of Medical Specialists" (UEMS). Based on radiological imaging techniques Interventional Radiology is an integral part of Radiology. Materials und Methods In 2009 the German Society for Interventional Radiology and minimally-invasive therapy (DeGIR) developed a structured training in Interventional Radiology. In cooperation with the German Society of Neuroradiology (DGNR) this training was extended to also cover Interventional Neuroradiology in 2012...
April 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28335036/validated-method-for-the-screening-and-quantification-of-baclofen-gabapentin-and-pregabalin-in-human-post-mortem-whole-blood-using-protein-precipitation-and-liquid-chromatography-tandem-mass-spectrometry
#13
Limon Nahar, Amy Smith, Rajan Patel, Rebecca Andrews, Sue Paterson
There has been a rapid increase in the number of prescriptions for baclofen (BLF), gabapentin (GBP) and pregabalin (PGL) in the UK since their introduction to therapy. Recent studies across the European Union and USA have shown the illicit abuse potential of these drugs and deaths have been observed. A simple, reliable and fully validated method was developed for the screening and quantification of BLF, GBP and PGL in human post-mortem (PM) blood. The analytes and their deuterated analogs as internal standard were extracted from blood using a single addition acetonitrile protein precipitation reaction followed by analysis using liquid chromatography-tandem mass spectrometry (LC-MS-MS) with triggered dynamic multiple reaction monitoring mode for simultaneous confirmation and quantification...
March 10, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28334872/hplc-dad-fld-method-for-simultaneous-determination-of-mycotoxins-in-wheat-bran
#14
Maria N Irakli, Adriana Skendi, Maria D Papageorgiou
Aflatoxins, deoxynivalenol, ochratoxin A and zearalenone are the most important mycotoxins that everyone on its own, in groups or simultaneously contaminate cereals. The external layers of cereal grains (bran) apart from health promoting ingredients are also the most contaminated part with reference to mycotoxin's presence. Therefore, consumption of a high fiber wheat-based diet represent an increased risk to consumer's health. The objective of this study was to develop a simple and reliable high performance liquid chromatography method for the simultaneous determination of these mycotoxins in wheat bran (WB)...
March 18, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28334772/transparency-policies-of-the-european-medicines-agency-has-the-paradigm-shifted
#15
Daria Kim
This article reflects on the state of play as regards access to non-summary clinical trial data in the European Union (EU). In particular, it examines the scope of access under the recent transparency policies of the European Medicines Agency (EMA) that attempt to break away from the presumptively confidential treatment of clinical trial data. In light of the emerging case law of the Court of Justice of the European Union on clinical trial data disclosure, it remains highly uncertain what data, and under what conditions, can be lawfully released by the EMA...
February 23, 2017: Medical Law Review
https://www.readbyqxmd.com/read/28334673/presence-of-the-%C3%AE-triketone-herbicide-tefuryltrione-in-drinking-water-sources-and-its-degradation-product-in-drinking-waters
#16
Motoyuki Kamata, Mari Asami, Yoshihiko Matsui
Triketone herbicides are becoming popular because of their herbicidal activity against sulfonylurea-resistant weeds. Among these herbicides, tefuryltrione (TFT) is the first registered herbicide for rice farming, and recently its distribution has grown dramatically. In this study, we developed analytical methods for TFT and its degradation product 2-chloro-4-methylsulfonyl-3-[(tetrahydrofuran-2-yl-methoxy) methyl] benzoic acid (CMTBA). TFT was found frequently in surface waters in rice production areas at concentrations as high as 1...
March 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28334460/social-costs-of-illegal-drugs-alcohol-and-tobacco-in-the-european-union-a-systematic-review
#17
REVIEW
Pablo Barrio, Jillian Reynolds, Anna García-Altés, Antoni Gual, Peter Anderson
ISSUES: Drug use accounts for one of the main disease groups in Europe, with relevant consequences to society. There is an increasing need to evaluate the economic consequences of drug use in order to develop appropriate policies. Here, we review the social costs of illegal drugs, alcohol and tobacco in the European Union. APPROACH: A systematic search of relevant databases was conducted. Grey literature and previous systematic reviews were also searched. Studies reporting on social costs of illegal drugs, alcohol and tobacco were included...
March 23, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28334036/multidrug-resistant-tuberculosis-in-prisons-located-in-former-soviet-countries-a-systematic-review
#18
Maxwell Droznin, Allen Johnson, Asal Mohamadi Johnson
BACKGROUND: A systematic literature review was performed to investigate the occurrence of multidrug-resistant tuberculosis (MDR TB) in prisons located in countries formerly part of the Soviet Union. METHODS: A systematic search of published studies reporting MDR TB occurrence in prisons located in former Soviet countries was conducted by probing PubMed and Cumulative Index Nursing and Allied Health Literature for articles that met predetermined inclusion criteria...
2017: PloS One
https://www.readbyqxmd.com/read/28333947/surgical-interventions-to-treat-humerus-shaft-fractures-a-network-meta-analysis-of-randomized-controlled-trials
#19
Jia-Guo Zhao, Jia Wang, Xiao-Hui Meng, Xian-Tie Zeng, Shi-Lian Kan
BACKGROUND: There are three main surgical techniques to treat humeral shaft fractures: open reduction and plate fixation (ORPF), intramedullary nail (IMN) fixation, and minimally invasive percutaneous osteosynthesis (MIPO). We performed a network meta-analysis to compare three surgical procedures, including ORPF, IMN fixation, and MIPO, to provide the optimum treatment for humerus shaft fractures. METHODS: MEDLINE, EMBASE, Cochrane Bone, Joint and Muscle Trauma Group Specialised Register, and Cochrane library were researched for reports published up to May 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28333312/establishment-maintenance-and-functional-integrity-of-the-blood-testis-barrier-in-organotypic-cultures-of-fresh-and-frozen-thawed-prepubertal-mouse-testes
#20
C Rondanino, A Maouche, L Dumont, A Oblette, N Rives
STUDY QUESTION: Can the spatio-temporal formation of an intact blood-testis barrier (BTB), which is essential for the progression of spermatogenesis, be reproduced in cultures of fresh or frozen/thawed prepubertal mouse testes? SUMMARY ANSWER: Organotypic cultures allow the establishment and maintenance of major BTB components and the formation of a functional BTB in mouse testicular tissues. WHAT IS KNOWN ALREADY: In vitro maturation of prepubertal testicular tissues is a promising approach to restore fertility in adult survivors of childhood cancer...
March 17, 2017: Molecular Human Reproduction
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