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https://www.readbyqxmd.com/read/28629896/randomized-phase-ii-study-of-preoperative-chemoradiotherapy-panitumumab-followed-by-consolidation-chemotherapy-in-potentially-operable-locally-advanced-stage-iiia-n2-non-small-cell-lung-cancer-nrg-oncology-rtog-0839
#1
Martin J Edelman, Chen Hu, Quynh-Thu Le, Jessica S Donington, Warren D D'Souza, Adam P Dicker, Billy W Loo, Elizabeth M Gore, Gregory M M Videtic, Nathaniel R Evans, Joseph W Leach, Maximilian Diehn, Steven J Feigenberg, Yuhchyau Chen, Rebecca Paulus, Jeffrey D Bradley
INTRODUCTION: Multimodality therapy has curative potential in locally advanced non-small cell lung cancer (LASCLC). Mediastinal nodal sterilization (MNS) after induction chemoradiotherapy (CRT) can serve as an intermediate marker for efficacy. NRG Oncology RTOG 0229 demonstrated the feasibility and efficacy of combining full dose radiation (61.2Gy) with chemotherapy followed by resection and chemotherapy. Based upon that experience and evidence that epidermal growth factor receptor (EGFR) antibodies are radiosensitizing, we explored adding panitumumab to CRT followed by resection and consolidation chemotherapy in LANSCLC with a primary endpoint of MNS...
June 16, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28622300/the-als-linked-e102q-mutation-in-sigma-receptor-1-leads-to-er-stress-mediated-defects-in-protein-homeostasis-and-dysregulation-of-rna-binding-proteins
#2
Alice Dreser, Jan Tilmann Vollrath, Antonio Sechi, Sonja Johann, Andreas Roos, Alfred Yamoah, Istvan Katona, Saeed Bohlega, Dominik Wiemuth, Yuemin Tian, Axel Schmidt, Jörg Vervoorts, Marc Dohmen, Cordian Beyer, Jasper Anink, Eleonora Aronica, Dirk Troost, Joachim Weis, Anand Goswami
Amyotrophic lateral sclerosis (ALS) is characterized by the selective degeneration of motor neurons (MNs) and their target muscles. Misfolded proteins which often form intracellular aggregates are a pathological hallmark of ALS. Disruption of the functional interplay between protein degradation (ubiquitin proteasome system and autophagy) and RNA-binding protein homeostasis has recently been suggested as an integrated model that merges several ALS-associated proteins into a common pathophysiological pathway...
June 16, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28616022/therapeutic-opportunities-and-challenges-of-induced-pluripotent-stem-cells-derived-motor-neurons-for-treatment-of-amyotrophic-lateral-sclerosis-and-motor-neuron-disease
#3
REVIEW
Manoj Kumar Jaiswal
Amyotrophic lateral sclerosis (ALS) and motor neuron diseases (MNDs) are progressive neurodegenerative diseases that affect nerve cells in the brain affecting upper and lower motor neurons (UMNs/LMNs), brain stem and spinal cord. The clinical phenotype is characterized by loss of motor neurons (MNs), muscular weakness and atrophy eventually leading to paralysis and death due to respiratory failure within 3-5 years after disease onset. No effective treatment or cure is currently available that halts or reverses ALS and MND except FDA approved drug riluzole that only modestly slows the progression of ALS in some patients...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28614068/highly-efficient-one-step-synthesis-of-carbon-encapsulated-nanocrystals-by-the-oxidation-of-metal-%C3%AF-complexes
#4
Boyang Liu, Yingfeng Shao, Xin Xiang, Fuhua Zhang, Shengchang Yan, Wenge Li
Carbon encapsulated various nanocrystals, including MnS and MnO, Cr2O3, MoO2, Fe7S8 and Fe3O4, ZrO2, are one-step in-situ prepared by a common and simple synthesis approach, respectively. The nanocrystals have an equiaxed morphology and a median size smaller than 30 nm. Tens and hundreds of these nanocrystals are entirely encapsulated by the worm-like amorphous carbon shell. The formation of core-shell structure depends on the strongly exothermic reaction of metal π-complexes with ammonium persulfate in an autoclave below 200 oC...
June 14, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28604865/investigation-of-zinc-ion-storage-of-transition-metal-oxides-sulfides-and-borides-in-zinc-ion-battery-systems
#5
Wenbao Liu, Jianwu Hao, Chengjun Xu, Jian Mou, Liubing Dong, Fuyi Jiang, Zhuang Kang, Junlin Wu, Baozheng Jiang, Feiyu Kang
Zn-ion batteries have been widely investigated due to their low cost, high safety and eco-friendliness. We comprehensively evaluate the performance of oxides (MoO3, TiO2, and Fe3O4), sulfides (MoS2, WS2, and MnS) and borides (TiB2 and ZrB2) in zinc ion battery systems. It is found that MnS is a good alternative cathode material with a reversible capacity of 221 mA h g(-1), while the other materials show different behaviours.
June 12, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28600672/significant-reduction-in-procedure-duration-in-remote-magnetic-guided-catheter-ablation-of-atrial-fibrillation-using-the-third-generation-magnetic-navigation-system
#6
Tilman Maurer, Christian Sohns, Sebastian Deiss, Laura Rottner, Peter Wohlmuth, Bruno Reißmann, Christian H Heeger, Christine Lemes, Johannes Riedl, Francesco Santoro, Shibu Mathew, Andreas Metzner, Feifan Ouyang, Karl-Heinz Kuck, Erik Wissner
PURPOSE: The magnetic navigation system (MNS) has shown to be safe and effective for catheter ablation of atrial fibrillation (AF). However, longer procedure duration as compared to manual catheter ablation may limit its widespread use. This study aimed to assess the impact of the newest generation MNS using an optimized mapping and ablation protocol on the efficacy and safety of remote magnetic catheter (RMC)-guided pulmonary vein isolation (PVI). METHODS: This observational study included 52 patients with symptomatic AF who underwent RMC-guided PVI using the second-generation MNS Niobe II (initial 28 patients, group I) or the third-generation MNS Niobe ES in combination with an optimized mapping and ablation protocol (24 patients, group II)...
June 10, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28598965/metabolic-network-segmentation-a-probabilistic-graphical-modeling-approach-to-identify-the-sites-and-sequential-order-of-metabolic-regulation-from-non-targeted-metabolomics-data
#7
Andreas Kuehne, Urs Mayr, Daniel C Sévin, Manfred Claassen, Nicola Zamboni
In recent years, the number of large-scale metabolomics studies on various cellular processes in different organisms has increased drastically. However, it remains a major challenge to perform a systematic identification of mechanistic regulatory events that mediate the observed changes in metabolite levels, due to complex interdependencies within metabolic networks. We present the metabolic network segmentation (MNS) algorithm, a probabilistic graphical modeling approach that enables genome-scale, automated prediction of regulated metabolic reactions from differential or serial metabolomics data...
June 9, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28594434/a-facile-method-and-novel-mechanism-using-microneedle-structured-pdms-for-triboelectric-generator-applications
#8
Van-Long Trinh, Chen-Kuei Chung
The triboelectric generator (TEG) is a cost-effective, multi-fabricated, friendly mechanical-energy-harvesting device. The traditional TEG, generally formed by two triboelectric materials in multilayers or a simple pattern, generated triboelectricity as it worked in the cycling contact-separation operation. This paper demonstrates a novel, high-aspect-ratio, microneedle (MN)-structured polydimethylsiloxane (PDMS)-based triboelectric generator (MN-TEG) by means of a low-cost, simple fabrication using CO2 laser ablation on the polymethyl methacrylate substrate and a molding process...
June 8, 2017: Small
https://www.readbyqxmd.com/read/28567000/exosomes-from-nsc-34-cells-transfected-with-hsod1-g93a-are-enriched-in-mir-124-and-drive-alterations-in-microglia-phenotype
#9
Sara Pinto, Carolina Cunha, Marta Barbosa, Ana R Vaz, Dora Brites
Amyotrophic lateral sclerosis (ALS) is a fatal adult-onset neurodegenerative disorder affecting motor neurons (MNs). Evidences indicate that ALS is a non-cell autonomous disease in which glial cells participate in both disease onset and progression. Exosomal transfer of mutant copper-zinc superoxide dismutase 1 (mSOD1) from cell-to-cell was suggested to contribute to disease dissemination. Data from our group and others showed that exosomes from activated cells contain inflammatory-related microRNAs (inflamma-miRNAs) that recapitulate the donor cell...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28566704/inclusions-properties-at-1673%C3%A2-k-and-room-temperature-with-ce-addition-in-ss400-steel
#10
Fei Pan, Hao-Long Chen, Yen-Hsun Su, Yen-Hao Su, Weng-Sing Hwang
Inclusion species formed in SS400 steel with Ce-addition was predicted by thermodynamic calculation. The analysis of the inclusion morphology and size distribution was carried out by applying Scanning Electron Microscopy (SEM) and Transmission Electron Microscope (TEM). Nano-Fe3O4 particles were also found in cerium-deoxidized and -desulfurized steel and their shapes were nearly spherical. The complex Ce2O3 inclusions covering a layer of 218 nm composed by several MnS particles with similar diffraction pattern...
May 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28564594/progressive-motor-neuron-pathology-and-the-role-of-astrocytes-in-a-human-stem-cell-model-of-vcp-related-als
#11
Claire E Hall, Zhi Yao, Minee Choi, Giulia E Tyzack, Andrea Serio, Raphaelle Luisier, Jasmine Harley, Elisavet Preza, Charlie Arber, Sarah J Crisp, P Marc D Watson, Dimitri M Kullmann, Andrey Y Abramov, Selina Wray, Russell Burley, Samantha H Y Loh, L Miguel Martins, Molly M Stevens, Nicholas M Luscombe, Christopher R Sibley, Andras Lakatos, Jernej Ule, Sonia Gandhi, Rickie Patani
Motor neurons (MNs) and astrocytes (ACs) are implicated in the pathogenesis of amyotrophic lateral sclerosis (ALS), but their interaction and the sequence of molecular events leading to MN death remain unresolved. Here, we optimized directed differentiation of induced pluripotent stem cells (iPSCs) into highly enriched (> 85%) functional populations of spinal cord MNs and ACs. We identify significantly increased cytoplasmic TDP-43 and ER stress as primary pathogenic events in patient-specific valosin-containing protein (VCP)-mutant MNs, with secondary mitochondrial dysfunction and oxidative stress...
May 30, 2017: Cell Reports
https://www.readbyqxmd.com/read/28560812/threshold-position-control-of-anticipation-in-humans-a-possible-role-of-corticospinal-influences
#12
Lei Zhang, Nicolas A Turpin, Anatol G Feldman
The role of corticospinal (CS) pathways in anticipatory motor actions was evaluated using transcranial magnetic stimulation (TMS) of the primary motor cortex projecting to motoneurons (MNs) of wrist muscles. Preloaded wrist flexors were suddenly unloaded by the experimenter or by the subject using the other hand (self-unloading). After sudden unloading, the wrist joint involuntarily flexed to a new position. In contrast, during self-unloading the wrist remained almost motionless, implying that an anticipatory postural adjustment occurred...
May 31, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28544329/dissolving-microneedle-arrays-for-transdermal-delivery-of-amphiphilic-vaccines
#13
Myunggi An, Haipeng Liu
Amphiphilic vaccine based on lipid-polymer conjugates is a new type of vaccine capable of self-delivering to the immune system. When injected subcutaneously, amphiphilic vaccines efficiently target antigen presenting cells in the lymph nodes (LNs) via a unique albumin-mediated transport and uptake mechanism and induce potent humoral and cellular immune responses. However, whether this new type of vaccine can be administrated via a safe, convenient microneedle-based transdermal approach remains unstudied. For such skin barrier-disruption systems, a simple application of microneedle arrays (MNs) is desired to disrupt the stratum corneum, and for rapid and pain-free self-administration of vaccines into the skin, the anatomic place permeates with an intricate mesh of lymphatic vessels draining to LNs...
May 19, 2017: Small
https://www.readbyqxmd.com/read/28530294/electrochemical-nanoimprint-lithography-when-nanoimprint-lithography-meets-metal-assisted-chemical-etching
#14
Jie Zhang, Lin Zhang, Lianhuan Han, Zhao-Wu Tian, Zhong-Qun Tian, Dongping Zhan
The functional three dimensional micro-nanostructures (3D-MNS) play crucial roles in integrated and miniaturized systems because of the excellent physical, mechanical, electric and optical properties. Nanoimprint lithography (NIL) has been versatile in the fabrication of 3D-MNS by pressing thermoplastic and photocuring resists into the imprint mold. However, direct nanoimprint on the semiconductor wafer still remains a great challenge. On the other hand, considered as a competitive fabrication method for erect high-aspect 3D-MNS, metal assisted chemical etching (MacEtch) can remove the semiconductor by spontaneous corrosion reaction at the metal/semiconductor/electrolyte 3-phase interface...
June 8, 2017: Nanoscale
https://www.readbyqxmd.com/read/28530093/iron-oxide-nanoparticle-powered-micro-optical-coherence-tomography-for-in-situ-imaging-the-penetration-and-swelling-of-polymeric-microneedles-in-the-skin
#15
Razina Z Seeni, Xiaojun Yu, Hao Chang, Peng Chen, Linbo Liu, Chenjie Xu
In recent years, polymeric microneedles (MNs) have attracted keen interests among researchers because of their applicability in transdermal drug delivery and interstitial skin fluid (ISF) extraction. When designing and characterizing such devices, it is critical to monitor their real-time in vitro and in vivo performances to optimize the desired effects, yet most of the existing methods are incapable of such functions. To address this unmet need, we develop a real-time noninvasive imaging methodology by integrating iron oxide (Fe3O4) nanoparticles into polymeric MNs to enhance image contrast for micro-optical coherence tomography (μOCT) imaging...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28516401/endovascular-crossing-of-chronic-total-occlusions-using-an-impulse-an-explorative-design-study
#16
Aimée Sakes, Marleen van der Wiel, Dimitra Dodou, Paul Breedveld
In this study we investigated whether exerting an impulse on a Chronic Total Occlusion (CTO) improves the success rate of CTO crossing as compared to the currently used method of statically pushing the guidewire against the CTO. A prototype (Ø2 mm) was developed that generates translational momentum using a spring-loaded indenter and converts it to an impulse during impact. Mechanical performance was evaluated by measuring the peak force and momentum for different spring compressions and strike distances in air and blood-mimicking fluid...
June 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28508376/in-vivo-and-qualitative-studies-investigating-the-translational-potential-of-microneedles-for-use-in-the-older-population
#17
Helen L Quinn, Carmel M Hughes, Ryan F Donnelly
Microneedles (MNs) are a novel transdermal drug delivery platform, rapidly progressing from a substantive evidence base, towards commercialisation. As part of this transition, it is important to consider the future use of MNs by older people in order to ensure optimal therapeutic outcomes for this unique and increasing population group. This paper, therefore, considers the use of MNs by those aged over 65 years, investigating insertion parameters in ageing skin, alongside the feasibility and acceptability of the technology...
May 15, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28495800/mechanically-patterned-neuromuscular-junctions-in-a-dish-have-improved-functional-maturation
#18
Cassandra L Happe, Kevin P Tenerelli, Anastasia K Gromova, Frederic Kolb, Adam J Engler
Motor neuron (MN) diseases are progressive disorders resulting from degeneration of neuromuscular junctions (NMJs), which form the connection between MNs and muscle fibers. NMJ-in-a-dish models have been developed to examine human MN-associated dysfunction with disease; however such co-culture models have randomly oriented myotubes with immature synapses that contract asynchronously. Mechanically patterned (MP) extracellular matrix with alternating soft and stiff stripes improve current NMJ-in-a-dish models by inducing both mouse and human myoblast durotaxis to stripes where they aligned, differentiated, and fused into patterned myotubes...
May 11, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28490013/sulfatase-2-modulates-fate-change-from-motor-neurons-to-oligodendrocyte-precursor-cells-through-coordinated-regulation-of-shh-signaling-with-sulfatase-1
#19
Wen Jiang, Yugo Ishino, Hirokazu Hashimoto, Kazuko Keino-Masu, Masayuki Masu, Kenji Uchimura, Kenji Kadomatsu, Takeshi Yoshimura, Kazuhiro Ikenaka
Sulfatases (Sulfs) are a group of endosulfatases consisting of Sulf1 and Sulf2, which specifically remove sulfate from heparan sulfate proteoglycans. Although several studies have shown that Sulf1 acts as a regulator of sonic hedgehog (Shh) signaling during embryonic ventral spinal cord development, the detailed expression pattern and function of Sulf2 in the spinal cord remains to be determined. In this study, we found that Sulf2 also modulates the cell fate change from motor neurons (MNs) to oligodendrocyte precursor cells (OPCs) by regulating Shh signaling in the mouse ventral spinal cord in coordination with Sulf1...
May 11, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28489798/efficacy-of-functional-microarray-of-microneedles-combined-with-topical-tranexamic-acid-for-melasma-a-randomized-self-controlled-split-face-study
#20
RANDOMIZED CONTROLLED TRIAL
Yang Xu, Renyan Ma, Juliandri Juliandri, Xiaoyan Wang, Bai Xu, Daguang Wang, Yan Lu, Bingrong Zhou, Dan Luo
To evaluate the efficacy of a functional microarray of microneedles (MNs) plus topical tranexamic acid (TA) for melasma in middle-aged women in China.Thirty female subjects with melasma were enrolled in this study. The left or right side of the face was chosen randomly to be pretreated with a functional microarray of MNs, followed by topical 0.5% TA solution once per week for 12 weeks. The other half-face was the control, treated with a sham device plus topical 0.5% TA solution. At baseline and at weeks 4, 8, and 12 of treatment, clinical (photographic) evaluations and parameters determined by Visia were recorded...
May 2017: Medicine (Baltimore)
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