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https://www.readbyqxmd.com/read/28207656/biomechanical-evaluation-of-transpedicular-nucleotomy-with-intact-annulus-fibrosus
#1
Fabrizio Russo, Robert A Hartman, Kevin M Bell, Nam Vo, Gwendolyn A Sowa, James D Kang, Gianluca Vadalà, Vincenzo Denaro
STUDY DESIGN: Biomechanical testing of partially nucleotomized ovine cadaveric spines. OBJECTIVE: To explore how the nucleus pulposus (NP) affects the biomechanical behavior of the intervertebral disc (IVD) by performing a partial nucleotomy via the transpedicular approach. SUMMARY OF BACKGROUND DATA: Mechanical loading represents a crucial part of IVD homeostasis. However, traditional regenerative strategies require violation of the annulus fibrosus (AF) resulting in significant alteration of joint mechanics...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28204978/characterization-and-cytotoxic-effect-of-aqua-2-2-2-nitrilotriacetato-oxo-vanadium-salts-on-human-osteosarcoma-cells
#2
Aleksandra Tesmar, Dariusz Wyrzykowski, Rafał Kruszyński, Karolina Niska, Iwona Inkielewicz-Stępniak, Joanna Drzeżdżon, Dagmara Jacewicz, Lech Chmurzyński
The use of protonated N-heterocyclic compound, i.e. 2,2'-bipyridinium cation, [bpyH(+)], enabled to obtain the new nitrilotriacetate oxidovanadium(IV) salt of the stoichiometry [bpyH][VO(nta)(H2O)]H2O. The X-ray measurements have revealed that the compound comprises the discrete mononuclear [VO(nta)(H2O)](-) coordination ion that can be rarely found among other known compounds containing nitrilotriacetate oxidovanadium(IV) moieties. The antitumor activity of [bpyH][VO(nta)(H2O)]H2O and its phenanthroline analogue, [phenH][VO(nta)(H2O)](H2O)0...
February 15, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28203524/in-vivo-mapping-of-a-dynamic-ribonucleoprotein-granule-interactome-in-early-drosophila-embryos
#3
Jimiao Zheng, Ming Gao, Nhan Huynh, Samuel J Tindell, Hieu D L Vo, W Hayes McDonald, Alexey L Arkov
Macromolecular complexes and organelles play crucial roles within cells, but their native architectures are often unknown. Here, we use an evolutionarily conserved germline organelle, the germ granule, as a paradigm. In Drosophila embryos, we map one of its interactomes using a novel in vivo crosslinking approach that employs two interacting granule proteins and determines their common neighbor molecules. We identified an in vivo granule assembly of Tudor, Aubergine, motor and metabolic proteins, and RNA helicases, and provide evidence for direct interactions within this assembly using purified components...
December 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/28199785/assessment-of-tocilizumab-anti-il-6-receptor-monoclonal-as-a-potential-treatment-for-chronic-antibody-mediated-rejection-and-transplant-glomerulopathy-in-hla-sensitized-renal-allograft-recipients
#4
Jua Choi, Olivier Aubert, Ashley Vo, Alexandre Loupy, Mark Haas, Dechu Puliyanda, Irene Kim, Sabrina Louie, Alexis Kang, Alice Peng, Joe Kahwaji, Nancy Reinsmoen, Mieko Toyoda, Stanley C Jordan
Extending the functional integrity of renal allografts is the primary goal of transplant medicine. Development of donor-specific antibodies (DSAs) post-transplant leads to chronic active antibody-mediated rejection (cABMR) and transplant glomerulopathy (TG), resulting in the majority of graft losses in the U.S. This reduces the quality & length of life for patients and increases cost. There are no approved treatments for cABMR. Evidence suggests the pro-inflammatory cytokine interleukin 6 (IL-6) may play an important role in DSA generation and cABMR...
February 15, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28198909/luminescent-ybvo4-by-atomic-layer-deposition
#5
Michael Getz, Per-Anders Hansen, Mohammed A K Ahmed, Helmer Fjellvåg, Ola Nilsen
UV to visible and near-infrared converting thin films of YbVO4 have been deposited by atomic layer deposition, using the precursor combinations Yb(thd)3 (thd = 2,2,6,6-tetramethyl-3,5-heptanedione) and O3, and VO(thd)2 and O3 at a deposition temperature of 240 °C, followed by post deposition annealing at 400-1000 °C. The UV absorption and the visible and near-infrared emission have been investigated in detail. The structure, thickness and composition of the deposited films have been studied by X-ray diffraction, ellipsometry, and X-ray fluorescence, respectively...
February 15, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28190729/a-functional-gradient-in-the-rodent-prefrontal-cortex-supports-behavioral-inhibition
#6
Stefanie Hardung, Robert Epple, Zoe Jäckel, David Eriksson, Cem Uran, Verena Senn, Lihi Gibor, Ofer Yizhar, Ilka Diester
The ability to plan and execute appropriately timed responses to external stimuli is based on a well-orchestrated balance between movement initiation and inhibition. In impulse control disorders involving the prefrontal cortex (PFC) [1], this balance is disturbed, emphasizing the critical role that PFC plays in appropriately timing actions [2-4]. Here, we employed optogenetic and electrophysiological techniques to systematically analyze the functional role of five key subareas of the rat medial PFC (mPFC) and orbitofrontal cortex (OFC) in action control [5-9]...
February 7, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28190578/quarter-dose-quadruple-combination-therapy-for-initial-treatment-of-hypertension-placebo-controlled-crossover-randomised-trial-and-systematic-review
#7
Clara K Chow, Jay Thakkar, Alex Bennett, Graham Hillis, Michael Burke, Tim Usherwood, Kha Vo, Kris Rogers, Emily Atkins, Ruth Webster, Michael Chou, Hakim-Moulay Dehbi, Abdul Salam, Anushka Patel, Bruce Neal, David Peiris, Henry Krum, John Chalmers, Mark Nelson, Christopher M Reid, Mark Woodward, Sarah Hilmer, Simon Thom, Anthony Rodgers
BACKGROUND: Globally, most patients with hypertension are treated with monotherapy, and control rates are poor because monotherapy only reduces blood pressure by around 9/5 mm Hg on average. There is a pressing need for blood pressure-control strategies with improved efficacy and tolerability. We aimed to assess whether ultra-low-dose combination therapy could meet these needs. METHODS: We did a randomised, placebo-controlled, double-blind, crossover trial of a quadpill-a single capsule containing four blood pressure-lowering drugs each at quarter-dose (irbesartan 37·5 mg, amlodipine 1·25 mg, hydrochlorothiazide 6·25 mg, and atenolol 12·5 mg)...
February 9, 2017: Lancet
https://www.readbyqxmd.com/read/28185234/multimodality-molecular-imaging-in-cardiac-regenerative-therapy
#8
Davis Vo, Patricia K Nguyen
Stem cell therapy holds great promise for the repair and regeneration of damaged myocardium. Disappointing results from recent large-scale randomized trials using adult stem cells, however, have led some to question the efficacy of this new therapeutic. Because most clinical stem cell trials have not incorporated molecular imaging to track cell fate, it may be premature to abandon this approach. Herein, we will review how multimodality imaging can be incorporated into cardiac regenerative therapy to facilitate the translation of stem cell therapy...
February 9, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28183643/silver-deposited-carboxymethyl-chitosan-grafted-magnetic-nanoparticles-as-dual-action-deliverable-antimicrobial-materials
#9
Duc-Thang Vo, Sabrina Sabrina, Cheng-Kang Lee
Carboxymethyl chitosan (CMCS) was known to have a much better antimicrobial activity than chitosan due to the increased cationic -NH3(+) groups resulted from the intra- and intermolecular interactions between the carboxyl and amino groups. CMCS was grafted onto the surface of silica coated magnetic nanoparticles (MNPs) to obtain magnetically retrievable and deliverable antimicrobial nanoparticles (MNPs@CMCS). The presence of carboxylate groups in CMCS not only enhanced antimicrobial activity but also enabled Ag ions chelating ability to induce the in situ formation of Ag nanoparticles (AgNPs)...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28181420/hypoxia-inducible-factor-1-a-urinary-biomarker-of-kidney-disease
#10
S Movafagh, D Raj, M Sanaei-Ardekani, D Bhatia, K Vo, M Mahmoudieh, R Rahman, E H Kim, A F Harralson
Identifying noninvasive biomarkers of kidney disease is valuable for diagnostic and therapeutic purposes. Hypoxia inducible factor 1 (HIF-1) expression is known to be elevated in the kidneys in several renal disease pathologies. We hypothesized that the urinary HIF-1a mRNA level may be a suitable biomarker for expression of this protein in chronic kidney disease (CKD). We compared HIF-1a mRNA levels from urine pellets of CKD and healthy subjects. To ensure that urinary HIF-1a mRNA is of kidney origin, we examined colocalization of HIF-1a mRNA with two kidney specific markers in urine cells...
February 9, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28180289/novel-roles-of-hp1a-and-mcm10-in-dna-replication-genome-maintenance-and-photoreceptor-cell-differentiation
#11
Nicole Vo, Dang Ngoc Anh Suong, Natsuki Yoshino, Hideki Yoshida, Sue Cotterill, Masamitsu Yamaguchi
No abstract text is available yet for this article.
February 17, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28179575/key-lessons-learned-from-moffitt-s-molecular-tumor-board-the-clinical-genomics-action-committee-experience
#12
Todd C Knepper, Gillian C Bell, J Kevin Hicks, Eric Padron, Jamie K Teer, Teresa T Vo, Nancy K Gillis, Neil T Mason, Howard L McLeod, Christine M Walko
BACKGROUND: The increasing practicality of genomic sequencing technology has led to its incorporation into routine clinical practice. Successful identification and targeting of driver genomic alterations that provide proliferative and survival advantages to tumor cells have led to approval and ongoing development of several targeted cancer therapies. Within many major cancer centers, molecular tumor boards are constituted to shepherd precision medicine into clinical practice. MATERIALS AND METHODS: In July 2014, the Clinical Genomics Action Committee (CGAC) was established as the molecular tumor board companion to the Personalized Medicine Clinical Service (PMCS) at Moffitt Cancer Center in Tampa, Florida...
February 8, 2017: Oncologist
https://www.readbyqxmd.com/read/28179501/drug-discovery-for-diamond-blackfan-anemia-using-reprogrammed-hematopoietic-progenitors
#13
Sergei Doulatov, Linda T Vo, Elizabeth R Macari, Lara Wahlster, Melissa A Kinney, Alison M Taylor, Jessica Barragan, Manav Gupta, Katherine McGrath, Hsiang-Ying Lee, Jessica M Humphries, Alex DeVine, Anupama Narla, Blanche P Alter, Alan H Beggs, Suneet Agarwal, Benjamin L Ebert, Hanna T Gazda, Harvey F Lodish, Colin A Sieff, Thorsten M Schlaeger, Leonard I Zon, George Q Daley
Diamond-Blackfan anemia (DBA) is a congenital disorder characterized by the failure of erythroid progenitor differentiation, severely curtailing red blood cell production. Because many DBA patients fail to respond to corticosteroid therapy, there is considerable need for therapeutics for this disorder. Identifying therapeutics for DBA requires circumventing the paucity of primary patient blood stem and progenitor cells. To this end, we adopted a reprogramming strategy to generate expandable hematopoietic progenitor cells from induced pluripotent stem cells (iPSCs) from DBA patients...
February 8, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28177727/associations-between-physical-activity-screen-time-and-fitness-among-6-to-10-year-old-children-living-in-edmonton-canada
#14
Morgan Potter, John C Spence, Normand G Boulé, Jodie A Stearns, Valerie Carson
The objectives of this study were to describe fitness levels, examine associations between physical activity (PA), screen time (ST), and fitness, and examine sex moderating effects in a sample of children. Participants were 649 children (7.8±0.6years; 52.4% female) from Edmonton, Canada. Hours/week of PA and ST were parent-reported. PA was also objectively measured with pedometers and expressed in increments of 1000 steps/day. Fitness components (i.e., vertical jump, sit-and-reach, waist circumference, grip strength, predicted maximal oxygen consumption (VO₂ max), push-ups, partial curl-ups, overall fitness) were measured according to the Canadian PA, Fitness and Lifestyle Approach protocols and expressed as z-scores or low/high fitness...
January 3, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28177610/search-for-origin-of-room-temperature-ferromagnetism-properties-in-ni-doped-zno-nanostructure
#15
Amit Kumar Rana, Yogendra Kumar, Parasmani Rajput, Shambhu Nath Jha, Dibyendu Bhattacharyya, Parasharam M Shirage
The origin of room temperature (RT) ferromagnetism (FM) in Zn1-xNixO (0< x < 0.125) samples are systematically investigated through physical, optical, and magnetic properties of nanostructure, prepared by simple low-temperature wet chemical method. Reitveld refinement of X-ray diffraction pattern displays an increase in lattice parameters with strain relaxation and contraction in Zn/O occupancy ratio by means of Ni-doping. Similarly, scanning electron microscope demonstrates modification in the morphology from nanorods to nanoflakes with Ni doping, suggests incorporation of Ni ions in ZnO...
February 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28177219/correction-to-glue-free-stacked-luminescent-nanosheets-enable-high-resolution-ratiometric-temperature-mapping-in-living-small-animals
#16
Takuya Miyagawa, Toshinori Fujie, Ferdinandus, Tat Thang Vo Doan, Hirotaka Sato, Shinji Takeoka
No abstract text is available yet for this article.
February 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28176841/emission-properties-of-ga2o3-nano-flakes-effect-of-excitation-density
#17
G Pozina, M Forsberg, M A Kaliteevski, C Hemmingsson
In the quest of developing high performance electronic and optical devices and more cost effective fabrication processes of monoclinic β-Ga2O3, new growth techniques and fundamental electronic and optical properties of defects have to be explored. By heating of dissolved metallic Ga in HCl in a NH3 and N2 atmosphere, nano-flake films of monoclinic β-phase Ga2O3 were grown as confirmed by XRD. From optical measurements, we observe two strong emissions. A red band peaking at ~2.0 eV and a UV band at ~3.8 eV...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28169418/allogeneic-transplantation-using-cd34-selected-peripheral-blood-progenitor-cells-combined-with-non-mobilized-donor-t%C3%A2-cells-for-refractory-severe-aplastic-anaemia
#18
Enkhtsetseg Purev, Xin Tian, Georg Aue, Jeremy Pantin, Phuong Vo, Reem Shalabi, Robert N Reger, Lisa Cook, Catalina Ramos, Elena Cho, Tat'yana Worthy, Hanh Khuu, David Stroncek, Neal S Young, Richard W Childs
Allogeneic haematopoietic stem cell transplantation is curative for severe aplastic anaemia (SAA) unresponsive to immunosuppressive therapy. To reduce chronic graft-versus-host disease (GVHD), which occurs more frequently after peripheral blood stem cell (PBSC) transplantation compared to bone-marrow transplantation (BMT), and to prevent graft rejection, we developed a novel partial T-cell depleted transplant that infuses high numbers of granulocyte colony-stimulating factor-mobilized CD34(+) selected PBSCs combined with a BMT-equivalent dose of non-mobilized donor T-cells...
February 7, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28168894/effect-of-combined-opioid-receptor-and-%C3%AE-2-adrenoceptor-blockade-on-anxiety-and-electrically-evoked-startle-responses
#19
Lechi Vo, Peter D Drummond
The R3 component of the electrically evoked blink reflex may form part of a startle reaction. Acoustic startle responses are augmented by yohimbine, an α2-adrenoceptor antagonist that blocks α2-autoreceptors, and are potentiated by opioid receptor blockade. To investigate these influences on electrically evoked startle responses, 16 mg yohimbine, with (16 participants) or without 50 mg naltrexone (23 participants), was administered in separate double-blind placebo-controlled cross-over experiments. In each experiment, R3 (a probable component of the startle response) was examined before and after high-frequency electrical stimulation of the forearm, a procedure that initiates inhibitory pain controls...
January 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28163883/rules-to-fly-by-pigeons-navigating-horizontal-obstacles-limit-steering-by-selecting-gaps-most-aligned-to-their-flight-direction
#20
Ivo G Ros, Partha S Bhagavatula, Huai-Ti Lin, Andrew A Biewener
Flying animals must successfully contend with obstacles in their natural environments. Inspired by the robust manoeuvring abilities of flying animals, unmanned aerial systems are being developed and tested to improve flight control through cluttered environments. We previously examined steering strategies that pigeons adopt to fly through an array of vertical obstacles (VOs). Modelling VO flight guidance revealed that pigeons steer towards larger visual gaps when making fast steering decisions. In the present experiments, we recorded three-dimensional flight kinematics of pigeons as they flew through randomized arrays of horizontal obstacles (HOs)...
February 6, 2017: Interface Focus
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