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https://www.readbyqxmd.com/read/28329174/ccr7-deficiency-modulates-t-cell-response-and-increases-susceptibility-to-yersinia-pseudotuberculosis-infection
#1
Joern Pezoldt, Fabio Pisano, Wiebke Heine, Maria Pasztoi, Maik Rosenheinrich, Aaron M Nuss, Marina C Pils, Immo Prinz, Reinhold Förster, Jochen Huehn, Petra Dersch
Background: To successfully limit pathogen dissemination an immunological link between the entry tissue of the pathogen and the underlying secondary lymphoid organs (SLO) needs to be established to prime adaptive immune responses. Here, the prerequisite of CCR7 to mount host immune responses within SLOs during gastrointestinal Yersinia pseudotuberculosis infection to limit pathogen spread was investigated. Methods: Survival, bacterial dissemination, intestinal and systemic pathology of wild type (WT) and CCR7-/- mice were assessed and correlated to the presence of immune cell subsets and cytokine responses throughout the course of infection...
January 27, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28328947/a-spontaneous-mutation-in-kdsd-a-biosynthesis-gene-for-3-deoxy-d-manno-octulosonic-acid-occurred-in-a-ciprofloxacin-resistant-strain-of-francisella-tularensis-and-caused-a-high-level-of-attenuation-in-murine-models-of-tularemia
#2
Taylor Chance, Jennifer Chua, Ronald G Toothman, Jason T Ladner, Jonathan E Nuss, Jo Lynne Raymond, Fabrice V Biot, Samandra Demons, Lynda Miller, Stephanie Halasohoris, Sherry Mou, Galina Koroleva, Sean Lovett, Gustavo Palacios, Nicholas J Vietri, Patricia L Worsham, Christopher K Cote, Todd M Kijek, Joel A Bozue
Francisella tularensis, a gram-negative facultative intracellular bacterial pathogen, is the causative agent of tularemia and able to infect many mammalian species, including humans. Because of its ability to cause a lethal infection, low infectious dose, and aerosolizable nature, F. tularensis subspecies tularensis is considered a potential biowarfare agent. Due to its in vitro efficacy, ciprofloxacin is one of the antibiotics recommended for post-exposure prophylaxis of tularemia. In order to identify therapeutics that will be efficacious against infections caused by drug resistant select-agents and to better understand the threat, we sought to characterize an existing ciprofloxacin resistant (CipR) mutant in the Schu S4 strain of F...
2017: PloS One
https://www.readbyqxmd.com/read/28306280/search-for-cosmic-ray-electron-and-positron-anisotropies-with-seven-years-of-fermi-large-area-telescope-data
#3
S Abdollahi, M Ackermann, M Ajello, A Albert, W B Atwood, L Baldini, G Barbiellini, R Bellazzini, E Bissaldi, E D Bloom, R Bonino, E Bottacini, T J Brandt, P Bruel, S Buson, M Caragiulo, E Cavazzuti, A Chekhtman, S Ciprini, F Costanza, A Cuoco, S Cutini, F D'Ammando, F de Palma, R Desiante, S W Digel, N Di Lalla, M Di Mauro, L Di Venere, B Donaggio, P S Drell, C Favuzzi, W B Focke, Y Fukazawa, S Funk, P Fusco, F Gargano, D Gasparrini, N Giglietto, F Giordano, M Giroletti, D Green, S Guiriec, A K Harding, T Jogler, G Jóhannesson, T Kamae, M Kuss, S Larsson, L Latronico, J Li, F Longo, F Loparco, P Lubrano, J D Magill, D Malyshev, A Manfreda, M N Mazziotta, M Meehan, P F Michelson, W Mitthumsiri, T Mizuno, A A Moiseev, M E Monzani, A Morselli, M Negro, E Nuss, T Ohsugi, N Omodei, D Paneque, J S Perkins, M Pesce-Rollins, F Piron, G Pivato, G Principe, S Rainò, R Rando, M Razzano, A Reimer, O Reimer, C Sgrò, D Simone, E J Siskind, F Spada, G Spandre, P Spinelli, A W Strong, H Tajima, J B Thayer, D F Torres, E Troja, J Vandenbroucke, G Zaharijas, S Zimmer
The Large Area Telescope on board the Fermi Gamma-ray Space Telescope has collected the largest ever sample of high-energy cosmic-ray electron and positron events since the beginning of its operation. Potential anisotropies in the arrival directions of cosmic-ray electrons or positrons could be a signature of the presence of nearby sources. We use almost seven years of data with energies above 42 GeV processed with the Pass 8 reconstruction. The present data sample can probe dipole anisotropies down to a level of 10^{-3}...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28280644/vitamin-k-deficiency-presenting-in-an-infant-with-an-anterior-mediastinal-mass-a-case-report-and-review-of-the-literature
#4
Mauricio A Palau, Amanda Winters, Xiayuan Liang, Rachelle Nuss, Susan Niermeyer, Megan Gossling, Clyde Wright
We report a case of a 1-month-old infant with spontaneous thymic hemorrhage secondary to severe vitamin K deficiency. He was brought to medical attention due to scrotal bruising and during evaluation was noted to be tachypneic and hypoxemic. Chest X-ray revealed an enlarged cardiothymic silhouette, and a follow-up echocardiogram revealed a mass in the anterior mediastinum. Routine laboratory work-up revealed severe coagulopathy. Further questioning revealed the patient had not received prophylactic vitamin K at birth...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28265087/classroom-sound-can-be-used-to-classify-teaching-practices-in-college-science-courses
#5
Melinda T Owens, Shannon B Seidel, Mike Wong, Travis E Bejines, Susanne Lietz, Joseph R Perez, Shangheng Sit, Zahur-Saleh Subedar, Gigi N Acker, Susan F Akana, Brad Balukjian, Hilary P Benton, J R Blair, Segal M Boaz, Katharyn E Boyer, Jason B Bram, Laura W Burrus, Dana T Byrd, Natalia Caporale, Edward J Carpenter, Yee-Hung Mark Chan, Lily Chen, Amy Chovnick, Diana S Chu, Bryan K Clarkson, Sara E Cooper, Catherine Creech, Karen D Crow, José R de la Torre, Wilfred F Denetclaw, Kathleen E Duncan, Amy S Edwards, Karen L Erickson, Megumi Fuse, Joseph J Gorga, Brinda Govindan, L Jeanette Green, Paul Z Hankamp, Holly E Harris, Zheng-Hui He, Stephen Ingalls, Peter D Ingmire, J Rebecca Jacobs, Mark Kamakea, Rhea R Kimpo, Jonathan D Knight, Sara K Krause, Lori E Krueger, Terrye L Light, Lance Lund, Leticia M Márquez-Magaña, Briana K McCarthy, Linda J McPheron, Vanessa C Miller-Sims, Christopher A Moffatt, Pamela C Muick, Paul H Nagami, Gloria L Nusse, Kristine M Okimura, Sally G Pasion, Robert Patterson, Pleuni S Pennings, Blake Riggs, Joseph Romeo, Scott W Roy, Tatiane Russo-Tait, Lisa M Schultheis, Lakshmikanta Sengupta, Rachel Small, Greg S Spicer, Jonathon H Stillman, Andrea Swei, Jennifer M Wade, Steven B Waters, Steven L Weinstein, Julia K Willsie, Diana W Wright, Colin D Harrison, Loretta A Kelley, Gloriana Trujillo, Carmen R Domingo, Jeffrey N Schinske, Kimberly D Tanner
Active-learning pedagogies have been repeatedly demonstrated to produce superior learning gains with large effect sizes compared with lecture-based pedagogies. Shifting large numbers of college science, technology, engineering, and mathematics (STEM) faculty to include any active learning in their teaching may retain and more effectively educate far more students than having a few faculty completely transform their teaching, but the extent to which STEM faculty are changing their teaching methods is unclear...
March 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28264019/correction-hemoglobin-induced-cell-trauma-indirectly-influences-endothelial-tlr9-activity-resulting-in-pulmonary-vascular-smooth-muscle-cell-activation
#6
Zoe Loomis, Paul Eigenberger, Katherine Redinius, Christina Lisk, Vijaya Karoor, Eva Nozik-Grayck, Scott K Ferguson, Kathryn Hassell, Rachelle Nuss, Kurt R Stenmark, Paul W Buehler, David C Irwin
[This corrects the article DOI: 10.1371/journal.pone.0171219.].
2017: PloS One
https://www.readbyqxmd.com/read/28174144/eating-and-rumination-behaviour-in-cows-with-traumatic-reticuloperitonitis
#7
U Braun, T Tschoner, M Hässig, K Nuss
Eating and rumination behaviour in 22 cows with traumatic reticuloperitonitis was recorded after the start of treatment. Based on the results of clinical, ultrasonographic and radiographic examinations, the cows were divided into two groups: Group A consisted of 12 cows without an intramural or perforating foreign body and group B had 10 cows with an intramural or perforating foreign body. Cows of group A received amoxicillin, flunixin meglumine and a NaCl-glucose infusion, and cows of group B received the same treatment accompanied by foreign body removal via ruminotomy...
February 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/28166820/case-report-clinical-and-postmortem-findings-in-four-cows-with-rib-fracture
#8
Ueli Braun, Sonja Warislohner, Udo Hetzel, Karl Nuss
BACKGROUND: Published reports of rib fractures in adult cattle are limited to the occurrence of chronic rib swellings caused by calluses, which are unremarkable from a clinical standpoint, whereas studies identifying clinical signs of rib fractures were not found in a literature search. This report describes the clinical and postmortem findings in four cows with rib fractures. CASE PRESENTATION: The 13th rib was fractured in three cows and the 11th rib in the remaining cow; three fractures were on the right and one on the left side...
February 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28152051/hemoglobin-induced-cell-trauma-indirectly-influences-endothelial-tlr9-activity-resulting-in-pulmonary-vascular-smooth-muscle-cell-activation
#9
Zoe Loomis, Paul Eigenberger, Katherine Redinius, Christina Lisk, Vijaya Karoor, Eva Nozik-Grayck, Scott K Ferguson, Kathryn Hassell, Rachelle Nuss, Kurt Stenmark, Paul Buehler, David C Irwin
It is now well established that both inherited and acquired forms of hemolytic disease can promote pulmonary vascular disease consequent of free hemoglobin (Hb) induced NO scavenging, elevations in reactive oxygen species and lipid peroxidation. It has recently been reported that oxidative stress can activate NFkB through a toll-like receptor 9 (TLR9) mediated pathway; further, TLR9 can be activated by either nuclear or mitochondrial DNA liberated by stress induced cellular trauma. We hypothesis that Hb induced lipid peroxidation and subsequent endothelial cell trauma is linked to TLR9 activation, resulting in IL-6 mediated pulmonary smooth muscle cell proliferation...
2017: PloS One
https://www.readbyqxmd.com/read/28146290/clinical-findings-treatment-and-outcome-in-11-dairy-heifers-with-breakdown-injury-due-to-interosseous-medius-muscle-rupture
#10
Karl Nuss, Jasmin Boppart, Hans Geyer
OBJECTIVE: To describe the diagnosis, treatment, and prognosis of fetlock breakdown due to interosseus medius muscle rupture in cattle. STUDY DESIGN: Retrospective clinical study. ANIMALS: Dairy heifers with unilateral or bilateral interosseus medius muscle rupture (n = 11). METHODS: Breakdown injury due to rupture of the interosseus medius muscle was documented clinically, radiographically, and ultrasonographically...
February 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28131694/neer-award-2016-reduced-muscle-degeneration-and-decreased-fatty-infiltration-after-rotator-cuff-tear-in-a-poly-adp-ribose-polymerase-1-parp-1-knock-out-mouse-model
#11
Michael B Kuenzler, Katja Nuss, Agnieszka Karol, Michael O Schär, Michael Hottiger, Sumit Raniga, David Kenkel, Brigitte von Rechenberg, Matthias A Zumstein
BACKGROUND: Disturbed muscular architecture, atrophy, and fatty infiltration remain irreversible in chronic rotator cuff tears even after repair. Poly (adenosine 5'-diphosphate-ribose) polymerase 1 (PARP-1) is a key regulator of inflammation, apoptosis, muscle atrophy, muscle regeneration, and adipocyte development. We hypothesized that the absence of PARP-1 would lead to a reduction in damage to the muscle subsequent to combined tenotomy and neurectomy in a PARP-1 knockout (KO) mouse model...
January 25, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28102634/left-anterolateral-emergency-thoracotomy-during-the-nuss-procedure-lifesaving-shortcut
#12
Marco Ghionzoli, Diana E Deaconu, Sara Ugolini, Roberto Lo Piccolo, Antonio Messineo
No abstract text is available yet for this article.
January 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28096329/tissue-dual-rna-seq-allows-fast-discovery-of-infection-specific-functions-and-riboregulators-shaping-host-pathogen-transcriptomes
#13
Aaron M Nuss, Michael Beckstette, Maria Pimenova, Carina Schmühl, Wiebke Opitz, Fabio Pisano, Ann Kathrin Heroven, Petra Dersch
Pathogenic bacteria need to rapidly adjust their virulence and fitness program to prevent eradication by the host. So far, underlying adaptation processes that drive pathogenesis have mostly been studied in vitro, neglecting the true complexity of host-induced stimuli acting on the invading pathogen. In this study, we developed an unbiased experimental approach that allows simultaneous monitoring of genome-wide infection-linked transcriptional alterations of the host and colonizing extracellular pathogens. Using this tool for Yersinia pseudotuberculosis-infected lymphatic tissues, we revealed numerous alterations of host transcripts associated with inflammatory and acute-phase responses, coagulative activities, and transition metal ion sequestration, highlighting that the immune response is dominated by infiltrating neutrophils and elicits a mixed TH17/TH1 response...
January 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096301/phosphoinositol-3-phosphate-acts-as-a-timer-for-reactive-oxygen-species-production-in-the-phagosome
#14
Zhi Min Song, Leïla Bouchab, Elodie Hudik, Romain Le Bars, Oliver Nüsse, Sophie Dupré-Crochet
Production of reactive oxygen species (ROS) in the phagosome by the NADPH oxidase is critical for mammalian immune defense against microbial infections and phosphoinositides are important regulators in this process. Phosphoinositol 3-phosphate (PI(3)P) regulates ROS production at the phagosome via p40(phox) by an unknown mechanism. This study tested the hypothesis that PI(3)P controls ROS production by regulating the presence of p40(phox) and p67(phox) at the phagosomal membrane. Pharmacologic inhibition of PI(3)P synthesis at the phagosome decreased the ROS production both in differentiated PLB-985 cells and human neutrophils...
January 17, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28094014/a-new-methodology-for-assessment-of-pectus-excavatum-correction-after-bar-removal-in-nuss-procedure-preliminary-study
#15
João Gomes-Fonseca, João L Vilaça, Tiago Henriques-Coelho, Bruno Direito-Santos, António C M Pinho, Jaime C Fonseca, Jorge Correia-Pinto
PURPOSE: The objective is to present a new methodology to assess quantitatively the impact of bar removal on the anterior chest wall, among patients with pectus excavatum who have undergone the Nuss procedure, and present a preliminary study using this methodology. METHODS: We propose to acquire, for each patient, the surface of the anterior chest wall using a three-dimensional laser scanner at subsequent time points (short term: before and after surgery; long term: follow-up visit, 6months, and 12months after surgery)...
January 7, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28088373/dynamic-contrast-enhanced-magnetic-resonance-imaging-dce-mri-for-the-prediction-of-non-union-consolidation
#16
Christian Fischer, Mareike Nissen, Gerhard Schmidmaier, Thomas Bruckner, Hans-Ulrich Kauczor, Marc-André Weber
INTRODUCTION: Non-union perfusion can be visualized with dynamic contrast-enhanced (DCE) MRI. This study evaluated DCE-MRI to predict non-union consolidation after surgery and detect factors that affect bone healing. MATERIALS AND METHODS: Between 2010 and 2015 non-union perfusion was prospectively quantified in 205 patients (mean age, 51.5 years, 129 men, 76 women) before intervention and at 6, 12, 26, 52 and more weeks follow-up. DCE-MRI results were related to the osseous consolidation, the ability to predict successful outcome was estimated by ROC analysis...
February 2017: Injury
https://www.readbyqxmd.com/read/28086865/rnai-reveals-proteins-for-metabolism-and-protein-processing-associated-with-langat-virus-infection-in-ixodes-scapularis-black-legged-tick-ise6-cells
#17
Jeffrey M Grabowski, Monika Gulia-Nuss, Richard J Kuhn, Catherine A Hill
BACKGROUND: Tick-borne flaviviruses (TBFs) cause thousands of human cases of encephalitis worldwide each year, with some TBF infections progressing to hemorrhagic fever. TBFs are of medical and veterinary importance and strategies to reduce flavivirus transmission by the tick vector may have significant application. Analyses of the proteome of ISE6 cells derived from the black legged tick, Ixodes scapularis infected with the TBF, Langat virus (LGTV), have provided insights into proteins and cellular processes involved with LGTV infection...
January 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28067494/structural-stability-diagram-of-alnp2s6-compounds-a-na-k-rb-cs-ln-lanthanide
#18
Leslie M Schoop, Roland Eger, Reinhard K Kremer, Alexander Kuhn, Jürgen Nuss, Bettina V Lotsch
Thiophosphate compounds have been studied extensively in the past for their rich structural variations and for a large variety of interesting properties. Here, we report 11 new phases with the composition ALnP2S6 (A = Na, K, Rb, Cs; Ln = lanthanide). These new thiophosphates crystallize in four different structure types, with the space groups Fdd2, P1̅, P21, and P21/c, respectively. All phases are insulating and the calculated band gaps range between 3 eV and 3.5 eV. Magnetic measurements on the compounds with open f-shells show paramagnetic behavior and magnetic moments that match the expected free ion values of the respective lanthanide cations...
January 9, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28012525/nasal-septal-perforation-in-children-presentation-etiology-and-management
#19
David T Chang, Alexandria L Irace, Kosuke Kawai, Carolyn R Rogers-Vizena, Roger Nuss, Eelam A Adil
OBJECTIVE: The presentation, etiology, and treatment of nasal septal perforation have been described in the adult literature; however, reports in the pediatric population are limited. In this study, we review our experience with pediatric nasal septal perforations with a focus on presentation, pathogenesis, management, and outcomes of surgical repair. METHODS: A retrospective chart review was performed on pediatric patients diagnosed with nasal septal perforations from 1998 to 2015...
January 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28006011/a-precise-temperature-responsive-bistable-switch-controlling-yersinia-virulence
#20
Aaron Mischa Nuss, Franziska Schuster, Louisa Roselius, Johannes Klein, René Bücker, Katharina Herbst, Ann Kathrin Heroven, Fabio Pisano, Christoph Wittmann, Richard Münch, Johannes Müller, Dieter Jahn, Petra Dersch
Different biomolecules have been identified in bacterial pathogens that sense changes in temperature and trigger expression of virulence programs upon host entry. However, the dynamics and quantitative outcome of this response in individual cells of a population, and how this influences pathogenicity are unknown. Here, we address these questions using a thermosensing virulence regulator of an intestinal pathogen (RovA of Yersinia pseudotuberculosis) as a model. We reveal that this regulator is part of a novel thermoresponsive bistable switch, which leads to high- and low-invasive subpopulations within a narrow temperature range...
December 2016: PLoS Pathogens
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