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https://www.readbyqxmd.com/read/29341586/development-of-a-novel-cytopathic-effect-based-phenotypic-screening-assay-against-cryptosporidium
#1
Alexander T Chao, Boon Heng Lee, Kah Fei Wan, Jeremy Selva, Bin Zou, Peter Gedeck, David Beer, Thierry T Diagana, Ghislain Bonamy, Ujjini H Manjunatha
Cryptosporidiosis is a diarrheal disease predominantly caused by Cryptosporidium parvum (Cp) and Cryptosporidium hominis (Ch), apicomplexan parasites which infect the intestinal epithelial cells of their human hosts. The only approved drug for cryptosporidiosis is nitazoxanide, which shows limited efficacy in immunocompromised children, the most vulnerable patient population. Thus, new therapeutics and in vitro infection models are urgently needed to address the current unmet medical need. Toward this aim, we have developed novel cytopathic effect (CPE)-based Cp and Ch assays in human colonic tumor (HCT-8) cells and compared them to traditional imaging formats...
January 17, 2018: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29340963/interactions-between-drugs-and-geriatric-syndromes-in-nursing-home-and-home-care-results-from-shelter-and-ibenc-projects
#2
Graziano Onder, Silvia Giovannini, Federica Sganga, Ester Manes-Gravina, Eva Topinkova, Harriet Finne-Soveri, Vjenka Garms-Homolová, Anja Declercq, Henriëtte G van der Roest, Pálmi V Jónsson, Hein van Hout, Roberto Bernabei
AIM: Drugs may interact with geriatric syndromes by playing a role in the continuation, recurrence or worsening of these conditions. Aim of this study is to assess the prevalence of interactions between drugs and three common geriatric syndromes (delirium, falls and urinary incontinence) among older adults in nursing home and home care in Europe. METHODS: We performed a cross-sectional multicenter study among 4023 nursing home residents participating in the Services and Health for Elderly in Long-TERm care (Shelter) project and 1469 home care patients participating in the Identifying best practices for care-dependent elderly by Benchmarking Costs and outcomes of community care (IBenC) project...
January 16, 2018: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29340340/american-geriatrics-society-beers-criteria-and-anticoagulant-use-in-older-adults-with-renal-impairment
#3
JoAnne Foody, Kenneth Todd Moore
No abstract text is available yet for this article.
January 2018: KI Reports
https://www.readbyqxmd.com/read/29337535/anion-mediated-photophysical-behavior-in-a-c60-fullerene-3-rotaxane-shuttle
#4
Timothy A Barendt, Ilija Rašović, Maria A Lebedeva, George A Farrow, Alexander Auty, Dimitri Chekulaev, Igor V Sazanovich, Julia A Weinstein, Kyriakos Porfyrakis, Paul D Beer
By addressing the challenge of controlling molecular motion, mechanically interlocked molecular machines are primed for a variety of applications in the field of nanotechnology. Specifically, the designed manipulation of communication pathways between electron donor and acceptor moieties that are strategically integrated into dynamic photoactive rotaxanes and catenanes may lead to efficient artificial photosynthetic devices. In this pursuit, a novel [3]rotaxane molecular shuttle consisting of a four station bis-naphthalene diimide (NDI) and central C60 fullerene bis-triazolium axle component and two mechanically bonded ferrocenyl functionalized -isophthalamide anion binding site-containing macrocycles is constructed using an anion template synthetic methodology...
January 16, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29337072/valorization-of-brewer-s-spent-grain-to-prebiotic-oligosaccharide-production-xylanase-catalyzed-hydrolysis-in-vitro-evaluation-with-probiotic-strains-and-in-a-batch-human-fecal-fermentation-model
#5
Mursalin Sajib, Peter Falck, Roya R R Sardari, Sindhu Mathew, Carl Grey, Eva Nordberg Karlsson, Patrick Adlercreutz
Brewer's spent grain (BSG) accounts for around 85% of the solid by-products from beer production. BSG was first extracted to obtain water-soluble arabinoxylan (AX). Using subsequent alkali extraction (0.5 M KOH) it was possible to dissolve additional AX. In total, about 57% of the AX in BSG was extracted with the purity of 45-55%. After comparison of nine xylanases, Pentopan mono BG, a GH11 enzyme, was selected for hydrolysis of the extracts to oligosaccharides with minimal formation of monosaccharides. Growth of Bifidobacterium adolescentis (ATCC 15703) was promoted by the enzymatic hydrolysis to arabinoxylooligosaccharides, while Lactobacillus brevis (DSMZ 1264) utilized only unsubstituted xylooligosaccharides...
January 11, 2018: Journal of Biotechnology
https://www.readbyqxmd.com/read/29336278/use-of-2015-beers-criteria-medications-by-older-medicare-beneficiaries
#6
Rajul Patel, Leona Zhu, Dilraj Sohal, Elena Lenkova, Nichole Koshki, Joseph Woelfel, Carly Ranson, Cynthia S Valle-Oseguera, Edward L Rogan
OBJECTIVE: To examine the prevalence of potentially inappropriate medications (PIMs) in community-dwelling Medicare beneficiaries based on the updated 2015 American Geriatrics Society Beers criteria. DESIGN: Cross-sectional study. SETTING: Thirteen mobile Medicare clinics were held throughout Northern and Central California during the fall of 2015. PATIENTS, PARTICIPANTS: Noninstitutionalized Medicare beneficiaries 65 years of age and older taking one or more medications...
January 1, 2018: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/29335040/does-a-cognitive-stress-test-predict-progression-from-mild-cognitive-impairment-to-dementia-equally-well-in-clinical-versus-population-based-settings
#7
Joanne C Beer, Beth E Snitz, Chung-Chou H Chang, David A Loewenstein, Mary Ganguli
BACKGROUND: Evidence suggests that semantic interference may be a sensitive indicator of early dementia. We examined the utility of the Semantic Interference Test (SIT), a cognitive stress memory paradigm which taps proactive and retroactive semantic interference, for predicting progression from mild cognitive impairment (MCI) to dementia in both a clinical and a population-based sample. METHODS: Participants with MCI in the clinical (n = 184) and population-based (n = 435) samples were followed for up to four years...
January 16, 2018: International Psychogeriatrics
https://www.readbyqxmd.com/read/29334963/evaluating-the-impact-of-a-falls-prevention-community-of-practice-in-a-residential-aged-care-setting-a-realist-approach
#8
Jacqueline Francis-Coad, Christopher Etherton-Beer, Caroline Bulsara, Nicole Blackburn, Paola Chivers, Anne-Marie Hill
BACKGROUND: Falls are a major socio-economic problem among residential aged care (RAC) populations resulting in high rates of injury including hip fracture. Guidelines recommend that multifactorial prevention strategies are implemented but these require translation into clinical practice. A community of practice (CoP) was selected as a suitable model to support translation of the best available evidence into practice, as it could bring together like-minded people with falls expertise and local clinical knowledge providing a social learning opportunity in the pursuit of a common goal; falls prevention...
January 15, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29334316/potential-therapeutic-and-economic-value-of-risk-stratified-treatment-as-initial-treatment-of-multiple-myeloma-in-europe
#9
Jennifer G Gaultney, Therese W Ng, Carin A Uyl-de Groot, Pieter Sonneveld, Erik H van Beers, Martin H van Vliet, William K Redekop
Biomarkers associated with prognosis in multiple myeloma (MM) can be used to stratify patients into risk categories. An attractive alternative to uniform treatment (UT), risk-stratified treatment (RST) is proposed where high-risk patients receive bortezomib-based regimens while standard-risk patients receive alternative less costly regimens. An early Markov-type decision analytic model evaluated the potential therapeutic and economic value of different RST strategies compared with UT in MM patients in key European countries...
January 15, 2018: Pharmacogenomics
https://www.readbyqxmd.com/read/29333350/scale-up-of-a-luminescent-solar-concentrator-based-photomicroreactor-via-numbering-up
#10
Fang Zhao, Dario Cambié, Jeroen Janse, Eric W Wieland, Koen P L Kuijpers, Volker Hessel, Michael G Debije, Timothy Noël
The use of solar energy to power chemical reactions is a long-standing dream of the chemical community. Recently, visible-light-mediated photoredox catalysis has been recognized as the ideal catalytic transformation to convert solar energy into chemical bonds. However, scaling photochemical transformations has been extremely challenging due to Bouguer-Lambert-Beer law. Recently, we have pioneered the development of luminescent solar concentrator photomicroreactors (LSC-PMs), which display an excellent energy efficiency...
January 2, 2018: ACS Sustainable Chemistry & Engineering
https://www.readbyqxmd.com/read/29332835/varietal-discrimination-of-hop-pellets-by-near-and-mid-infrared-spectroscopy
#11
Julio C Machado, Miguel A Faria, Isabel M P L V O Ferreira, Ricardo N M J Páscoa, João A Lopes
Hop is one of the most important ingredients of beer production and several varieties are commercialized. Therefore, it is important to find an eco-real-time-friendly-low-cost technique to distinguish and discriminate hop varieties. This paper describes the development of a method based on vibrational spectroscopy techniques, namely near- and mid-infrared spectroscopy, for the discrimination of 33 commercial hop varieties. A total of 165 samples (five for each hop variety) were analysed by both techniques. Principal component analysis, hierarchical cluster analysis and partial least squares discrimination analysis were the chemometric tools used to discriminate positively the hop varieties...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29331524/strategies-and-technical-challenges-for-imaging-oligometastatic-disease-recommendations-from-the-european-organisation-for-research-and-treatment-of-cancer-imaging-group
#12
REVIEW
Nandita M deSouza, Yan Liu, Arturo Chiti, Daniela Oprea-Lager, Géraldine Gebhart, Bernard E Van Beers, Ken Herrmann, Frederic E Lecouvet
Patients with oligometastatic disease (OMD) often have controllable symptoms, and cures are possible. Technical improvements in surgery and radiotherapy have introduced the option of metastasis-directed ablative therapies as an adjunct or alternative to standard-of-care systemic therapies. Several clinical trials and registries are investigating the benefit of these therapeutic approaches across several cancer sites. This requires that patients are correctly included and followed with appropriate imaging. This article discusses the evidence and offers recommendations for the implementation of standard-of-care (Response Evaluation Criteria in Solid Tumours measurements on computed tomography [CT], magnetic resonance imaging [MRI] and bone scintigraphy) and advanced imaging modalities (functional, metabolic and radionuclide targeted) for identifying and following up patients with OMD...
January 10, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29330585/potentially-inappropriate-medications-in-community-dwelling-older-adults-undertaken-as-a-comprehensive-geriatric-risk-assessment
#13
Sharmin S Bala, Sujita W Narayan, Prasad S Nishtala
PURPOSE: The prescription of potentially inappropriate medications (PIMs) is associated with an increase in adverse events, prescribing cascades, high health-care costs, morbidity, and mortality in the elderly. The overarching objective of this study is to examine the prevalence of PIMs in the elderly, applying the 2012 American Geriatrics Society Beers criteria for the study period 2012-2014, and the updated 2015 Beers criteria for 2015. METHODS: The study population (N = 70,479) included a continuously recruited national cohort of community-dwelling older (aged ≥ 65 years) New Zealanders who had undertaken the International Resident Assessment Instrument-Home Care (interRAI-HC) assessments between September 2012 and October 2015...
January 12, 2018: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29329457/a-novel-application-of-rnase-h2-dependent-quantitative-pcr-for-detection-and-quantification-of-grosmannia-clavigera-a-mountain-pine-beetle-fungal-symbiont-in-environmental-samples
#14
Chandra H McAllister, Colleen E Fortier, Kate R St Onge, Bianca M Sacchi, Meaghan J Nawrot, Troy Locke, Janice E K Cooke
Mountain pine beetle (Dendroctonus ponderosae Hopkins; MPB) is an economically and ecologically important pest of pine species in western North America. Mountain pine beetles form complex multipartite relationships with microbial partners, including the ophiostomoid fungi Grosmannia clavigera (Robinson-Jeffrey and Davidson) Zipfel, de Beer and Wingfield, Ophiostoma montium (Rumbold) von Arx, Grosmannia aurea (Robinson-Jeffrey and Davidson) Zipfel, de Beer and Wingfield, Leptographium longiclavatum (Lee, Kim, and Breuil) and Leptographium terebrantis (Barras and Perry)...
January 10, 2018: Tree Physiology
https://www.readbyqxmd.com/read/29329078/schmallenberg-virus-non-structural-protein-nsm-intracellular-distribution-and-role-of-non-hydrophobic-domains
#15
Franziska Kraatz, Kerstin Wernike, Sven Reiche, Andrea Aebischer, Ilona Reimann, Martin Beer
Schmallenberg virus (SBV) induces fetal malformation, abortions and stillbirth in ruminants. While the non-structural protein NSs is a major virulence factor, the biological function of NSm, the second non-structural protein which consists of three hydrophobic transmembrane (I, III, V) and two non-hydrophobic regions (II, IV), is still unknown. Here, a series of NSm mutants displaying deletions of nearly the entire NSm or of the non-hydrophobic domains was generated and the intracellular distribution of NSm was assessed...
January 9, 2018: Virology
https://www.readbyqxmd.com/read/29328628/analysis-of-gluten-in-a-wheat-gluten-incurred-sorghum-beer-brewed-in-the-presence-of-proline-endopeptidase-by-lc-ms-ms
#16
Katherine L Fiedler, Rakhi Panda, Timothy R Croley
Most gluten-reduced beers are produced using an enzyme called proline endopeptidase (PEP), which proteolyzes the gluten by cleaving at proline residues. However, the gluten content of beers brewed in the presence of PEP cannot be verified since current analytical methods are not able to accurately quantitate gluten in fermented foods. In this work, mass spectrometry was used to qualitatively characterize the gluten in a wheat gluten incurred sorghum model beer brewed with and without the addition of PEP. Hydrolyzed gluten peptides and chymotryptic gluten peptides produced from intact gluten proteins were detected in beer brewed in the presence of up to six times the manufacturer's recommended dosage of PEP...
January 12, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29328062/cyanobacterial-photosynthesis-under-sulfidic-conditions-insights-from-the-isolate-leptolyngbya-sp-strain-hensonii
#17
Trinity L Hamilton, Judith M Klatt, Dirk de Beer, Jennifer L Macalady
We report the isolation of a pinnacle-forming cyanobacterium isolated from a microbial mat covering the sediment surface at Little Salt Spring-a flooded sinkhole in Florida with a perennially microoxic and sulfidic water column. The draft genome of the isolate encodes all of the enzymatic machinery necessary for both oxygenic and anoxygenic photosynthesis, as well as genes for methylating hopanoids at the C-2 position. The physiological response of the isolate to H2S is complex: (i) no induction time is necessary for anoxygenic photosynthesis; (ii) rates of anoxygenic photosynthesis are regulated by both H2S and irradiance; (iii) O2 production is inhibited by H2S concentrations as low as 1 μM and the recovery rate of oxygenic photosynthesis is dependent on irradiance; (iv) under the optimal light conditions for oxygenic photosynthesis, rates of anoxygenic photosynthesis are nearly double those of oxygenic photosynthesis...
January 12, 2018: ISME Journal
https://www.readbyqxmd.com/read/29327239/a-small-protein-probe-for-correlated-microscopy-of-endogenous-proteins
#18
Marit A de Beer, Jeroen Kuipers, Paul M P van Bergen En Henegouwen, Ben N G Giepmans
Probes are essential to visualize proteins in their cellular environment, both using light microscopy as well as electron microscopy (EM). Correlated light microscopy and electron microscopy (CLEM) requires probes that can be imaged simultaneously by both optical and electron-dense signals. Existing combinatorial probes often have impaired efficiency, need ectopic expression as a fusion protein, or do not target endogenous proteins. Here, we present FLIPPER-bodies to label endogenous proteins for CLEM. Fluorescent Indicator and Peroxidase for Precipitation with EM Resolution (FLIPPER), the combination of a fluorescent protein and a peroxidase, is fused to a nanobody against a target of interest...
January 11, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29325564/engineered-recombinant-protein-products-of-the-avian-paramyxovirus-type-1-nucleocapsid-and-phosphoprotein-genes-for-serological-diagnosis
#19
Na Zhao, Christian Grund, Martin Beer, Timm C Harder
BACKGROUND: Virulent Newcastle disease virus (NDV, avian Avulavirus-1, APMV-1) induces a highly contagious and lethal systemic disease in gallinaceous poultry. APMV-1 antibody detection is used for surveillance and to control vaccination, but is hampered by cross-reactivity to other subtypes of avian Avulaviruses. Data are lacking concerning the applicability of NDV V proteins as differential diagnostic marker to distinguish vaccinated from virus-infected birds (DIVA strategy). METHODS: Full length and C-terminally truncated nucleocapsid (NP) protein, and the unique C-terminal regions of the phospho- (P) and V proteins of the NDV LaSota strain were bacterially expressed as fusion proteins with the multimerization domain of the human C4 binding protein, and used as diagnostic antigens in indirect ELISA...
January 11, 2018: Virology Journal
https://www.readbyqxmd.com/read/29325531/costs-of-potentially-inappropriate-medication-use-in-residential-aged-care-facilities
#20
S L Harrison, L Kouladjian O'Donnell, R Milte, S M Dyer, E S Gnanamanickam, C Bradley, E Liu, S N Hilmer, M Crotty
BACKGROUND: The potential harms of some medications may outweigh their potential benefits (inappropriate medication use). Despite recommendations to avoid the use of potentially inappropriate medications (PIMs) in older adults, the prevalence of PIM use is high in different settings including residential aged care. However, it remains unclear what the costs of these medications are in this setting. The main objective of this study was to determine the costs of PIMs in older adults living in residential care...
January 11, 2018: BMC Geriatrics
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