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https://www.readbyqxmd.com/read/28934551/polymer-conjugation-to-enhance-cellulase-activity-and-preserve-thermal-and-functional-stability
#1
Thaiesha A Wright, Melissa Lucius Dougherty, Benjamin Schmitz, Kevin M Burridge, Katherine Makaroff, Jamie M Stewart, Henry D Fischesser, Jerry T Shepherd, Jason A Berberich, Dominik Konkolewicz, Richard C Page
A thermophilic cellulase, FnCel5a, from Fervidobacterium nodosum was conjugated with various functional polymers including cationic, anionic, and strongly and weakly hydrogen bonding polymers. The activity of FnCel5a toward a high molecular weight carboxymethyl cellulose substrate was enhanced by polymer conjugation. Activity enhancements of 50% or greater observed for acrylamide and mixed N,N-dimethyl acrylamide/2-(N,N-dimethylamino)ethyl methacrylate polymers suggesting that the greatest enhancements were caused by polymers capable of non-covalent interactions with the substrate...
September 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28933431/erratum-genome-scale-activation-screen-identifies-a-lncrna-locus-regulating-a-gene-neighbourhood
#2
Julia Joung, Jesse M Engreitz, Silvana Konermann, Omar O Abudayyeh, Vanessa K Verdine, Francois Aguet, Jonathan S Gootenberg, Neville E Sanjana, Jason B Wright, Charles P Fulco, Yuen-Yi Tseng, Charles H Yoon, Jesse S Boehm, Eric S Lander, Feng Zhang
This corrects the article DOI: 10.1038/nature23451.
September 20, 2017: Nature
https://www.readbyqxmd.com/read/28932211/strain-level-streptococcus-colonization-patterns-during-the-first-year-of-life
#3
Meredith S Wright, Jamison McCorrison, Andres M Gomez, Erin Beck, Derek Harkins, Jyoti Shankar, Stephanie Mounaud, Edelwisa Segubre-Mercado, Aileen May R Mojica, Brian Bacay, Susan A Nzenze, Sheila Z M Kimaro, Peter Adrian, Keith P Klugman, Marilla G Lucero, Karen E Nelson, Shabir Madhi, Granger G Sutton, William C Nierman, Liliana Losada
Pneumococcal pneumonia has decreased significantly since the implementation of the pneumococcal conjugate vaccine (PCV), nevertheless, in many developing countries pneumonia mortality in infants remains high. We have undertaken a study of the nasopharyngeal (NP) microbiome during the first year of life in infants from The Philippines and South Africa. The study entailed the determination of the Streptococcus sp. carriage using a lytA qPCR assay, whole metagenomic sequencing, and in silico serotyping of Streptococcus pneumoniae, as well as 16S rRNA amplicon based community profiling...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28931610/the-coupling-of-synaptic-inputs-to-local-cortical-activity-differs-among-neurons-and-adapts-following-stimulus-onset
#4
Nathaniel Caleb Wright, Mahmood Sayed Hoseini, Tansel Baran Yasar, Ralf Wessel
Cortical activity contributes significantly to the high variability of sensory responses of interconnected pyramidal neurons, which has crucial implications for sensory coding. Yet, largely because of technical limitations of in vivo intracellular recordings, the coupling of a pyramidal neuron's synaptic inputs to the local cortical activity has evaded full understanding. Here, we obtained excitatory synaptic conductance (g) measurements from putative pyramidal neurons and local field potential (LFP) recordings from adjacent cortical circuits during visual processing in the turtle whole-brain ex vivo preparation...
September 20, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28931029/screening-of-a-long-term-sample-set-reveals-two-ranavirus-lineages-in-british-herpetofauna
#5
Stephen J Price, Alexandra Wadia, Owen N Wright, William T M Leung, Andrew A Cunningham, Becki Lawson
Reports of severe disease outbreaks in amphibian communities in mainland Europe due to strains of the common midwife toad virus (CMTV)-like clade of Ranavirus are increasing and have created concern due to their considerable population impacts. In Great Britain, viruses in another clade of Ranavirus-frog virus 3 (FV3)-like-have caused marked declines of common frog (Rana temporaria) populations following likely recent virus introductions. The British public has been reporting mortality incidents to a citizen science project since 1992, with carcasses submitted for post-mortem examination, resulting in a long-term tissue archive spanning 25 years...
2017: PloS One
https://www.readbyqxmd.com/read/28930496/american-telemedicine-association-practice-guidelines-for-telemental-health-with-children-and-adolescents
#6
Kathleen Myers, Eve-Lynn Nelson, Terry Rabinowitz, Donald Hilty, Deborah Baker, Sara Smucker Barnwell, Geoffrey Boyce, Lynn F Bufka, Sharon Cain, Lisa Chui, Jonathan S Comer, Carroll Cradock, Felissa Goldstein, Barb Johnston, Elizabeth Krupinski, Katherine Lo, David D Luxton, S David McSwain, Jennifer McWilliams, Steve North, Jay Ostrowsky, Antonio Pignatiello, David Roth, Jay Shore, Carolyn Turvey, James R Varrell, Shawna Wright, Jordana Bernard
No abstract text is available yet for this article.
September 20, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28930196/socio-demographic-and-lifestyle-factors-predict-5-year-changes-in-adiposity-among-a-group-of-black-south-african-adults
#7
Cornelie Nienaber-Rousseau, Olusola F Sotunde, Patricia O Ukegbu, P Hermanus Myburgh, Hattie H Wright, Lize Havemann-Nel, Sarah J Moss, Iolanthé M Kruger, H Salomé Kruger
The rising prevalence of obesity and excessive adiposity are global public health concerns. Understanding determinants of changes in adiposity over time is critical for informing effective evidence-based prevention or treatment. However, limited information is available to achieve this objective. Cultural, demographic, environmental, and behavioral factors including socio-economic status (SES) likely account for obesity development. To this end, we related these variables to anthropometric measures in 1058 black adult Tswana-speaking South Africans who were HIV negative in a prospective study over five years...
September 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28930065/trends-in-perceived-access-to-marijuana-among-adolescents-in-the-united-states-2002-2015
#8
Christopher P Salas-Wright, Sehun Oh, Trenette Clark Goings, Michael G Vaughn
OBJECTIVE: There is concern that changes in marijuana-related policy and public opinion may lead to increased access to marijuana among young people in the United States. However, little research has been conducted on changes in youth's perceptions of marijuana access, and studies have yet to systematically examine trends in perceived access across key sociodemographic and externalizing behavioral subgroups. METHOD: Using population-based data collected between 2002 and 2015 as part of the National Survey on Drug Use and Health, we examined trends in perceived marijuana access among non-Hispanic White, African American, and Hispanic adolescents (ages 12-17, n = 221,412)...
September 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28928413/allele-age-under-non-classical-assumptions-is-clarified-by-an-exact-computational-markov-chain-approach
#9
Bianca De Sanctis, Ivan Krukov, A P Jason de Koning
Determination of the age of an allele based on its population frequency is a well-studied problem in population genetics, for which a variety of approximations have been proposed. We present a new result that, surprisingly, allows the expectation and variance of allele age to be computed exactly (within machine precision) for any finite absorbing Markov chain model in a matter of seconds. This approach makes none of the classical assumptions (e.g., weak selection, reversibility, infinite sites), exploits modern sparse linear algebra techniques, integrates over all sample paths, and is rapidly computable for Wright-Fisher populations up to N e  = 100,000...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28928395/stochastic-priming-and-spatial-cues-orchestrate-heterogeneous-clonal-contribution-to-mouse-pancreas-organogenesis
#10
Hjalte List Larsen, Laura Martín-Coll, Alexander Valentin Nielsen, Christopher V E Wright, Ala Trusina, Yung Hae Kim, Anne Grapin-Botton
Spatiotemporal balancing of cellular proliferation and differentiation is crucial for postnatal tissue homoeostasis and organogenesis. During embryonic development, pancreatic progenitors simultaneously proliferate and differentiate into the endocrine, ductal and acinar lineages. Using in vivo clonal analysis in the founder population of the pancreas here we reveal highly heterogeneous contribution of single progenitors to organ formation. While some progenitors are bona fide multipotent and contribute progeny to all major pancreatic cell lineages, we also identify numerous unipotent endocrine and ducto-endocrine bipotent clones...
September 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28926408/serum-glycan-binding-igg-antibodies-in-hiv-1-infection-and-during-the-development-of-broadly-neutralizing-responses
#11
Cathrine Scheepers, Sudipa Chowdhury, W Shea Wright, Christopher T Campbell, Nigel J Garrett, Quarraisha Abdool Karim, Salim S Abdool Karim, Penny L Moore, Jeffrey C Gildersleeve, Lynn Morris
BACKGROUND: The HIV-1 envelope is covered with glycans that provide structural integrity and protect conserved regions from host antibody responses. However, these glycans are often the target of broadly neutralizing antibodies (bNAbs) that emerge in some HIV infected individuals. We aimed to determine whether anti-glycan IgG antibodies are a general response to HIV-1 infection or specific to individuals who develop bNAbs. METHODS: IgG binding to glycans was assessed using arrays that contained 245 unique components including N-linked carbohydrates, glycolipids and Tn-peptides...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926065/isomerisation-reactivity-and-coordination-chemistry-of-a-new-hybrid-multi-functional-phosphazane
#12
Alex J Plajer, Kevin Bold, Felix J Rizzuto, Raúl García-Rodríguez, Tanya K Ronson, Dominic S Wright
The unsymmetric P(III)/P(V) cyclodiphosphazane framework [(S[double bond, length as m-dash])(H)P(μ-N(t)Bu)2PNH(t)Bu] (2) provides entry into the mixed chalgogenide dianion [(S)P(μ-N(t)Bu)2P(Se)N(t)Bu](2-), and unique insight into the mechanisms of cis/trans isomerism in phosph(iii)- and phosph(v)-azanes.
September 19, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28925540/preparing-for-the-first-breath-in-the-developing-lung-maternal-overnutrition-takes-center-stage
#13
Paul J Rozance, Clyde J Wright
Clinical observations link maternal obesity to neonatal respiratory complications. However, a direct mechanistic link between maternal overnutrition and neonatal respiratory outcomes is difficult to establish. This article is protected by copyright. All rights reserved.
September 19, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28924986/supplementing-electronic-health-records-through-sample-collection-and-patient-diaries-a-study-set-within-a-primary-care-research-database
#14
Rebecca M Joseph, Jamie Soames, Mark Wright, Kirin Sultana, Tjeerd P van Staa, William G Dixon
PURPOSE: To describe a novel observational study that supplemented primary care electronic health record (EHR) data with sample collection and patient diaries. METHODS: The study was set in primary care in England. A list of 3974 potentially eligible patients was compiled using data from the Clinical Practice Research Datalink. Interested general practices opted into the study then confirmed patient suitability and sent out postal invitations. Participants completed a drug-use diary and provided saliva samples to the research team to combine with EHR data...
September 19, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28923880/impact-of-liver-fat-on-the-differential-partitioning-of-hepatic-triacylglycerol-into-vldl-subclasses-on-high-and-low-sugar-diets
#15
A Margot Umpleby, Fariba Shojaee-Moradie, Barbara Fielding, Xuefei Li, Andrea Marino, Najlaa Alsini, Cheryl Isherwood, Nicola Jackson, Aryati Ahmad, Michael Stolinski, Julie Anne Lovegrove, Sigurd Johnsen, Jeewaka Mendis, John Wright, Malgorzata E Wilinska, Roman Hovorka, Jimmy Bell, Louise E Thomas, Gary Frost, Bruce Arthur Griffin
Dietary sugars are linked to the development of non-alcoholic fatty liver disease (NAFLD) and dyslipidaemia, but it is unknown if NAFLD itself influences the effects of sugars on plasma lipoproteins. To study this further, men with NAFLD (n=11) and low liver fat 'controls' (n= 14) were fed two iso-energetic diets, high or low in sugars (26% or 6% total energy) for 12 weeks, in a randomised, cross-over design. Fasting plasma lipid and lipoprotein kinetics were measured after each diet by stable isotope trace-labelling...
September 18, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28923758/methacholine-challenge-testing-a-novel-method-for-measuring-pd20
#16
Beth E Davis, Samuel K Simonson, Christianne M Blais, Donald W Cockcroft
BACKGROUND: New guidelines for methacholine challenge testing recommend reporting the test outcome as dose rather than concentration. Jet nebulizers have historically been used for methacholine challenge testing but much of the weight loss, often (incorrectly) referred to as aerosol output, is actually evaporation. The Wright® nebulizer is well characterized and still widely used, but its availability is unclear and it is non-disposable. We developed a novel method using a vibrating mesh nebulizer (Aerogen Solo®)...
September 15, 2017: Chest
https://www.readbyqxmd.com/read/28923526/results-of-a-double-blind-randomized-placebo-controlled-study-of-nabiximols-oromucosal-spray-as-adjunctive-therapy-in-advanced-cancer-patients-with-chronic-uncontrolled-pain
#17
Aron H Lichtman, Eberhard Albert Lux, Robert McQuade, Sandro Rossetti, Raymond Sanchez, Wei Sun, Stephen Wright, Elena Kornyeyeva, Marie T Fallon
CONTEXT: Prior phase 2/3 studies found that cannabinoids might provide adjunctive analgesia in advanced cancer patients with uncontrolled pain. OBJECTIVE: To assess adjunctive nabiximols (Sativex(®)), an extract of Cannabis sativa containing two potentially therapeutic cannabinoids (Δ9-tetrahydrocannabinol [27 mg/mL] and cannabidiol [25mg/mL]), in advanced cancer patients with chronic pain unalleviated by optimized opioid therapy. METHODS: Phase 3, double-blind, randomized, placebo-controlled trial in patients with advanced cancer and average pain NRS scores ≥ 4 and ≤ 8 despite optimized opioid therapy...
September 15, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28922265/-stuck-in-the-icu-caring-for-children-with-chronic-critical-illness
#18
Carrie M Henderson, Erin P Williams, Miriam C Shapiro, Emily Hahn, Laura Wright-Sexton, Nancy Hutton, Renee D Boss
OBJECTIVE: Neonatal ICUs and PICUs increasingly admit patients with chronic critical illness: children whose medical complexity leads to recurrent and prolonged ICU hospitalizations. We interviewed participants who routinely care for children with chronic critical illness to describe their experiences with ICU care for pediatric chronic critical illness. DESIGN: Semi-structured interviews. Interviews were transcribed and analyzed for themes. SETTING: Stakeholders came from five regions (Seattle, WA; Houston, TX; Jackson, MS; Baltimore, MD; and Philadelphia, PA)...
September 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28922044/evaluation-of-the-reliability-of-the-challenge-when-used-to-measure-advanced-motor-skills-of-children-with-cerebral-palsy
#19
F Virginia Wright, Chun Ying Lam, Bhavnita Mistry, Joan Walker
AIMS: The Challenge was designed as an extension to the GMFM-66 to assess advanced motor skills of children with cerebral palsy (CP) who walk/run independently. This study evaluated the Challenge's inter-rater and test-retest reliability. METHODS: Thirty children with CP (GMFCS level I [n = 24] and II [n = 6]) completed the Challenge, with re-testing one to two weeks later. Seven physiotherapist assessors passed the Challenge criterion test pre-administration. A single assessor administered and scored test and retest sessions (test-retest reliability)...
September 18, 2017: Physical & Occupational Therapy in Pediatrics
https://www.readbyqxmd.com/read/28920747/sickkids-the-history-of-the-hospital-for-sick-children-by-david-wright-sickkids-the-history-of-the-hospital-for-sick-children-david-wright-toronto-university-of-toronto-press-2016-xiv-462-p-29-95
#20
Meghan Crnic
No abstract text is available yet for this article.
2017: Canadian Bulletin of Medical History, Bulletin Canadien D'histoire de la Médecine
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