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https://www.readbyqxmd.com/read/27913459/children-with-rare-diseases-of-neutrophil-granulocytes-from-therapeutic-orphans-to-pioneers-of-individualized-medicine
#1
Christoph Klein
Neutrophil granulocytes are the most abundant immune cells in the blood yet the pathways orchestrating their differentiation and biological function remain incompletely understood. Studying (ultra-) rare patients with monogenetic defects of neutrophil granulocytes may open new horizons to understand basic principles of hematopoiesis and innate immunity. Here, recent insights into genetic factors controlling myelopoiesis and their more general role in biology will be presented in a clinical perspective. Advances in supportive care, first and foremost the use of recombinant human granulocyte-colony stimulating factor, has made a substantial difference for the quality of life and life expectancy of patients with congenital neutropenia (CN)...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27912901/individualized-versus-conventional-ovarian-stimulation-for-in%C3%A2-vitro-fertilization-a-multicenter-randomized-controlled-assessor-blinded-phase-3-noninferiority-trial
#2
Anders Nyboe Andersen, Scott M Nelson, Bart C J M Fauser, Juan Antonio García-Velasco, Bjarke M Klein, Joan-Carles Arce
OBJECTIVE: To compare the efficacy and safety of follitropin delta, a new human recombinant FSH with individualized dosing based on serum antimüllerian hormone (AMH) and body weight, with conventional follitropin alfa dosing for ovarian stimulation in women undergoing IVF. DESIGN: Randomized, multicenter, assessor-blinded, noninferiority trial (ESTHER-1). SETTING: Reproductive medicine clinics. PATIENT(S): A total of 1,329 women (aged 18-40 years)...
November 22, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27911955/scholarly-context-adrift-three-out-of-four-uri-references-lead-to-changed-content
#3
Shawn M Jones, Herbert Van de Sompel, Harihar Shankar, Martin Klein, Richard Tobin, Claire Grover
Increasingly, scholarly articles contain URI references to "web at large" resources including project web sites, scholarly wikis, ontologies, online debates, presentations, blogs, and videos. Authors reference such resources to provide essential context for the research they report on. A reader who visits a web at large resource by following a URI reference in an article, some time after its publication, is led to believe that the resource's content is representative of what the author originally referenced...
2016: PloS One
https://www.readbyqxmd.com/read/27911952/high-interannual-variability-in-connectivity-and-genetic-pool-of-a-temperate-clingfish-matches-oceanographic-transport-predictions
#4
Maria Klein, Sara Teixeira, Jorge Assis, Ester A Serrão, Emanuel J Gonçalves, Rita Borges
Adults of most marine benthic and demersal fish are site-attached, with the dispersal of their larval stages ensuring connectivity among populations. In this study we aimed to infer spatial and temporal variation in population connectivity and dispersal of a marine fish species, using genetic tools and comparing these with oceanographic transport. We focused on an intertidal rocky reef fish species, the shore clingfish Lepadogaster lepadogaster, along the southwest Iberian Peninsula, in 2011 and 2012. We predicted high levels of self-recruitment and distinct populations, due to short pelagic larval duration and because all its developmental stages have previously been found near adult habitats...
2016: PloS One
https://www.readbyqxmd.com/read/27911806/permissive-roles-of-cytokines-interleukin-7-and-flt3-ligand-in-mouse-b-cell-lineage-commitment
#5
Lilly von Muenchow, Llucia Alberti-Servera, Fabian Klein, Giuseppina Capoferri, Daniela Finke, Rhodri Ceredig, Antonius Rolink, Panagiotis Tsapogas
Hematopoietic cells are continuously generated throughout life from hematopoietic stem cells, thus making hematopoiesis a favorable system to study developmental cell lineage commitment. The main factors incorporating environmental signals to developing hematopoietic cells are cytokines, which regulate commitment of hematopoietic progenitors to the different blood lineages by acting either in an instructive or a permissive manner. Fms-like tyrosine kinase-3 (Flt3) ligand (FL) and Interleukin-7 (IL-7) are cytokines pivotal for B-cell development, as manifested by the severely compromised B-cell development in their absence...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911541/multipartite-entanglement-detection-with-minimal-effort
#6
Lukas Knips, Christian Schwemmer, Nico Klein, Marcin Wieśniak, Harald Weinfurter
Certifying entanglement of a multipartite state is generally considered a demanding task. Since an N qubit state is parametrized by 4^{N}-1 real numbers, one might naively expect that the measurement effort of generic entanglement detection also scales exponentially with N. Here, we introduce a general scheme to construct efficient witnesses requiring a constant number of measurements independent of the number of qubits for states like, e.g., Greenberger-Horne-Zeilinger states, cluster states, and Dicke states...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27911364/an-intramedullary-locking-nail-for-standardized-fixation-of-femur-osteotomies-to-analyze-normal-and-defective-bone-healing-in-mice
#7
Tina Histing, Michael D Menger, Tim Pohlemann, Romano Matthys, Tobias Fritz, Patric Garcia, Moritz Klein
Bone healing models are essential to the development of new therapeutic strategies for clinical fracture treatment. Furthermore, mouse models are becoming more commonly used in trauma research. They offer a large number of mutant strains and antibodies for the analysis of the molecular mechanisms behind the highly differentiated process of bone healing. To control the biomechanical environment, standardized and well-characterized osteosynthesis techniques are mandatory in mice. Here, we report on the design and use of an intramedullary nail to stabilize open femur osteotomies in mice...
November 13, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910560/mitigation-of-hard-x-ray-background-in-backlit-pinhole-imagers
#8
J R Fein, P A Keiter, J P Holloway, S R Klein, J S Davis, R P Drake
Experiments were performed to mitigate the hard x-ray background commonly observed in backlit pinhole imagers. The material of the scaffold holding the primary backlighter foil was varied to reduce the laser-plasma instabilities responsible for hot electrons and resulting hard x-ray background. Radiographic measurements with image plates showed a factor of >25 decrease in x-rays between 30 and 67 keV when going from a plastic to Al or V scaffold. A potential design using V scaffold offers a signal-to-background ratio of 6:1, a factor of 2 greater than using the bare plastic scaffold...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910458/publisher-s-note-talbot-lau-x-ray-deflectometer-electron-density-diagnostic-for-laser-and-pulsed-power-high-energy-density-plasma-experiments-invited-rev-sci-instrum-87-11d501-2016
#9
M P Valdivia, D Stutman, C Stoeckl, C Mileham, I A Begishev, W Theobald, J Bromage, S P Regan, S R Klein, G Muñoz-Cordovez, M Vescovi, V Valenzuela-Villaseca, F Veloso
No abstract text is available yet for this article.
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910439/talbot-lau-x-ray-deflectometer-electron-density-diagnostic-for-laser-and-pulsed-power-high-energy-density-plasma-experiments-invited
#10
M P Valdivia, D Stutman, C Stoeckl, C Mileham, I A Begishev, W Theobald, J Bromage, S P Regan, S R Klein, G Muñoz-Cordovez, M Vescovi, V Valenzuela-Villaseca, F Veloso
Talbot-Lau X-ray deflectometry (TXD) has been developed as an electron density diagnostic for High Energy Density (HED) plasmas. The technique can deliver x-ray refraction, attenuation, elemental composition, and scatter information from a single Moiré image. An 8 keV Talbot-Lau interferometer was deployed using laser and x-pinch backlighters. Grating survival and electron density mapping were demonstrated for 25-29 J, 8-30 ps laser pulses using copper foil targets. Moiré pattern formation and grating survival were also observed using a copper x-pinch driven at 400 kA, ∼1 kA/ns...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910422/measurements-of-laser-generated-soft-x-ray-emission-from-irradiated-gold-foils
#11
J S Davis, Y Frank, E Raicher, M Fraenkel, P A Keiter, S R Klein, R P Drake, D Shvarts
Soft x-ray emission from laser irradiated gold foils was measured at the Omega-60 laser system using the Dante photodiode array. The foils were heated with 2 kJ, 6 ns laser pulses and foil thicknesses were varied between 0.5, 1.0, and 2.0 μm. Initial Dante analysis indicates peak emission temperatures of roughly 100 eV and 80 eV for the 0.5 μm and 1.0 μm thick foils, respectively, with little measurable emission from the 2.0 μm foils.
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910335/detailed-characterization-of-the-llnl-imaging-proton-spectrometer
#12
A M Rasmus, A U Hazi, M J-E Manuel, C C Kuranz, S R Klein, P X Belancourt, J R Fein, M J MacDonald, R P Drake, B B Pollock, J Park, G J Williams, H Chen
Ultra-intense short pulse lasers incident on solid targets (e.g., thin Au foils) produce well collimated, broad-spectrum proton beams. These proton beams can be used to characterize magnetic fields, electric fields, and density gradients in high energy-density systems. The LLNL-Imaging Proton Spectrometer (L-IPS) was designed and built [H. Chen et al., Rev. Sci. Instrum. 81, 10D314 (2010)] for use with such laser produced proton beams. The L-IPS has an energy range of 50 keV-40 MeV with a resolving power (E/dE) of about 275 at 1 MeV and 21 at 20 MeV, as well as a single spatial imaging axis...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910267/the-impact-of-patient-characteristics-on-nurse-practitioners-assessment-and-management-of-adolescent-concussion
#13
Janessa M Graves, Tracy A Klein
BACKGROUND AND PURPOSE: To evaluate the effect of patient sex and type of activity on concussion assessment and management recommendations. METHODS: We administered a web-based survey to all nurse practitioners (NPs) actively licensed in Washington and Oregon. Participants were randomized to view one of four standardized patient scenario videos of an adolescent seeking care for a concussion, portraying the same symptomology but differing by sex and activity (soccer/hiking)...
December 2, 2016: Journal of the American Association of Nurse Practitioners
https://www.readbyqxmd.com/read/27909943/simulating-different-dosing-scenarios-for-a-child-appropriate-valproate-er-formulation-in-a-new-pediatric-two-stage-dissolution-model
#14
Frank Karkossa, Antonia Krueger, Jana Urbaniak, Sandra Klein
Predictive in vitro test methods addressing the parameters relevant to drug release in the pediatric gastrointestinal tract could be an appropriate means for reducing the number of in vivo studies in children. However, dissolution models addressing the particular features of pediatric gastrointestinal physiology and typical pediatric dosing scenarios have not yet been described. The objective of the present study was to combine the knowledge on common vehicle types and properties and current information on pediatric gastrointestinal physiology to design a dissolution model that enables a biorelevant simulation of the gastrointestinal conditions in young children...
December 1, 2016: AAPS PharmSciTech
https://www.readbyqxmd.com/read/27909239/affinity-of-indocyanine-green-in-the-detection-of-colorectal-peritoneal-carcinomatosis-the-role-of-enhanced-permeability-and-retention-effect
#15
Alexandre Filippello, Jack Porcheron, Jean Philippe Klein, Michèle Cottier, Gabriele Barabino
Indocyanine green (ICG) is increasingly being used in digestive oncology. In colorectal cancer, ICG can be used to detect lymph node metastasis and hepatic metastasis on the surface of the liver. In peritoneal carcinomatosis, it was previously suspected that the diffusion of ICG in the tumor mass was due to the enhanced permeability and retention effect; however, this phenomenon has not been clearly demonstrated. Using bevacizumab, an antibody directed against vascular endothelial growth factor that consequently inhibits neoangiogenesis, we sought to confirm the mode of ICG diffusion...
November 30, 2016: Surgical Innovation
https://www.readbyqxmd.com/read/27908688/increased-production-of-l-serine-in-escherichia-coli-through-adaptive-laboratory-evolution
#16
Hemanshu Mundhada, Jose S Miguel, Konstantin Schneider, Anna Koza, Hanne B Christensen, Tobias Klein, Patrick V Phaneuf, Markus Herrgard, Adam M Feist, Alex T Nielsen
L-serine is a promising building block biochemical with a high theoretical production yield from glucose. Toxicity of L-serine is however prohibitive for high-titer production in E. coli. Here, E. coli lacking L-serine degradation pathways was evolved for improved tolerance by gradually increasing L-serine concentration from 3 to 100g/L using adaptive laboratory evolution (ALE). Genome sequencing of isolated clones revealed multiplication of genetic regions, as well as mutations in thrA, thereby showing a potential mechanism of serine inhibition...
November 28, 2016: Metabolic Engineering
https://www.readbyqxmd.com/read/27908600/adenoma-recurrence-after-piecemeal-colonic-emr-is-predictable-the-sydney-emr-recurrence-tool
#17
David J Tate, Lobke Desomer, Amir Klein, Gregor Brown, Luke F Hourigan, Eric Yt Lee, Alan Moss, Donald Ormonde, Spiro Raftopoulos, Rajvinder Singh, Stephen J Williams, Simon Zanati, Karen Byth, Michael J Bourke
BACKGROUND AND AIMS: Endoscopic mucosal resection (EMR) is the primary treatment of large laterally spreading colonic lesions (LSL). Residual or recurrent adenoma (RRA) is a major limitation. We aimed to identify a robust method to stratify risk of RRA. METHODS: Prospective multicenter data on consecutive LSL ≥ 20mm removed by piecemeal EMR from eight Australian tertiary centers was included (September 2008 until May 2016). A logistic regression model for endoscopically determined recurrence (EDR) was created on a randomly selected half of the cohort to yield the Sydney EMR Recurrence Tool (SERT), a 4-point score to stratify the incidence of RRA based on characteristics of the index EMR...
November 28, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27906195/congenital-hypothyroidism-with-delayed-thyroid-stimulating-hormone-elevation-in-premature-infants-born-at-less-than-30-weeks-gestation
#18
D C Kaluarachchi, T T Colaizy, L M Pesce, M Tansey, J M Klein
OBJECTIVE: Congenital hypothyroidism (CH) with delayed thyroid-stimulating hormone (TSH) elevation is a common form of thyroid dysfunction among premature infants. Routine newborn screening (NBS) may miss infants with CH with delayed TSH elevation. The objective of the study is to determine the prevalence of CH with delayed TSH elevation in premature infants and to identify associated risk factors. STUDY DESIGN: Retrospective analysis of serum thyroid function screening (TFS) at day of life 30 in premature infants <30 weeks gestation, admitted to University of Iowa Neonatal Intensive Care Unit between 1 July 2012 to 30 June 2015...
December 1, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27905127/reply-letter-to-adcy5-related-dyskinesia-comments-on-characteristic-manifestations-and-variant-associated-severity
#19
Victor S C Fung, Florence C F Chang, Ana Westenberger, Christine Klein
No abstract text is available yet for this article.
December 1, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27903420/microbiology-of-processed-edible-insect-products-results-of-a-preliminary-survey
#20
Nils Th Grabowski, Günter Klein
Little is known of the microbiology of processed insect products. The present survey analysed a total of n=38 samples of deep-fried and spiced (Acheta domesticus, Locusta migratoria, and Omphisa fuscidentalis), cooked in soy sauce ("tsukudani"; Oxya yezoensis, Vespula flaviceps, and Bombyx mori), dried (A. domesticus, L. migatoria, Alphitobius diaperinus, Tenebrio molitor, B. mori, Hermetia illucens, and Musca domestica), powdered (H. illucens, T. molitor) and other (incl. deep-frozen B. mori and honeybee pollen) insect products microbiologically (total bacterial count [TBC], Enterobacteriaceae, staphylococci, bacilli, and yeasts and moulds counts, salmonellae, Listeria monocytogenes, and Escherichia coli)...
November 9, 2016: International Journal of Food Microbiology
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