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https://www.readbyqxmd.com/read/29783177/evaluating-long-term-patterns-of-decreasing-groundwater-discharge-through-a-lake-bottom-permeable-reactive-barrier
#1
Timothy D McCobb, Martin A Briggs, Denis R LeBlanc, Frederick D Day-Lewis, Carole D Johnson
Identifying and quantifying groundwater exchange is critical when considering contaminant fate and transport at the groundwater/surface-water interface. In this paper, areally distributed temperature and point seepage measurements are used to efficiently assess spatial and temporal groundwater discharge patterns through a glacial-kettle lakebed area containing a zero-valent iron permeable reactive barrier (PRB). Concern was that the PRB was becoming less permeable with time owing to biogeochemical processes within the PRB...
May 18, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29782551/structural-insights-on-the-efficient-catalysis-of-hydroperoxide-reduction-by-ohr-crystallographic-and-molecular-dynamics-approaches
#2
Erika Piccirillo, Thiago G P Alegria, Karen F Discola, José R R Cussiol, Renato M Domingos, Marcos A de Oliveira, Leandro de Rezende, Luis E S Netto, Antonia T-do Amaral
Organic hydroperoxide resistance (Ohr) enzymes are highly efficient Cys-based peroxidases that play central roles in bacterial response to fatty acid hydroperoxides and peroxynitrite, two oxidants that are generated during host-pathogen interactions. In the active site of Ohr proteins, the conserved Arg (Arg19 in Ohr from Xylella fastidiosa) and Glu (Glu51 in Ohr from Xylella fastidiosa) residues, among other factors, are involved in the extremely high reactivity of the peroxidatic Cys (Cp) toward hydroperoxides...
2018: PloS One
https://www.readbyqxmd.com/read/29781754/taking-a-snapshot-evaluation-of-a-conversation-aid-for-identifying-psychosocial-needs-in-young-adults-with-cancer
#3
Hanneke Poort, Phoebe M Souza, Paige K Malinowski, Katelyn M MacDougall, Constance M Barysauskas, Teresa Lau Greenberg, James A Tulsky, Karen M Fasciano
PURPOSE: Young adults (YAs) aged 18-35 years with cancer often experience unmet psychosocial needs. We aimed to evaluate a conversation aid ("Snapshot") that offered a framework for discussing YA-specific psychosocial concerns between patients and clinicians. METHODS: We developed and implemented Snapshot between 2014 and 2016 as part of a quality improvement initiative at Dana-Farber Cancer Institute. We extracted pre- and postimplementation data from chart documentation of psychosocial concerns...
May 21, 2018: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/29781737/genetic-association-study-between-the-col11a1-and-col18a1-genes-and-high-myopia-in-a-han-chinese-population
#4
Haiyan Wu, Lingxi Jiang, Rui Zheng, Dongyan Luo, Xiaoqi Liu, Fang Hao, Zhilin Jiang, Bo Gong, Zhenglin Yang, Yi Shi
PURPOSE: To evaluate the association between high myopia (HM) and single nucleotide polymorphisms (SNPs) in collagen, type XI, alpha 1 (COL11A1) and collagen, type XVIII, alpha 1 (COL18A1) genes in a Han Chinese population. MATERIALS AND METHODS: A total of 869 patients with HM and 804 controls were recruited for this study. The genotyping of five SNPs in COL11A1 and COL18A1 was performed using the SNaPshot method. The genotyping data were analyzed using the χ2 test, and the linkage disequilibrium block structure was calculated and examined by Haploview software...
May 21, 2018: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/29778689/network-analysis-of-a-proposed-exit-pathway-for-protons-to-the-p-side-of-cytochrome-c-oxidase
#5
Xiuhong Cai, Kamran Haider, Jianxun Lu, Slaven Radic, Chang Yun Son, Qiang Cui, M R Gunner
Cytochrome c Oxidase (CcO) reduces O2 , the terminal electron acceptor, to water in the aerobic respiration electron transport chain. The energy released by O2 reductions is stored by removing eight protons from the high pH, N-side, of the membrane with four used for chemistry in the active site and four pumped to the low pH, P-side. The proton transfers must occur along controllable proton pathways that prevent energy dissipating movement towards the N-side. The CcO N-side has well established D- and K-channels to deliver protons to the protein interior...
May 17, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29776630/diagnostic-molecular-microbiology-a-2018-snapshot
#6
REVIEW
Marilynn Ransom Fairfax, Martin H Bluth, Hossein Salimnia
Molecular biological techniques have evolved expeditiously and in turn have been applied to the detection of infectious disease. Maturation of these technologies and their coupling with related technological advancement in fluorescence, electronics, digitization, nanodynamics, and sensors among others have afforded clinical medicine additional tools toward expedient identification of infectious organisms at concentrations and sensitivities previously unattainable. These advancements have been adapted in select settings toward addressing clinical demands for more timely and effective patient management...
June 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29772079/detection-of-multiple-perturbations-in-multi-omics-biological-networks
#7
Paula J Griffin, Yuqing Zhang, William Evan Johnson, Eric D Kolaczyk
Cellular mechanism-of-action is of fundamental concern in many biological studies. It is of particular interest for identifying the cause of disease and learning the way in which treatments act against disease. However, pinpointing such mechanisms is difficult, due to the fact that small perturbations to the cell can have wide-ranging downstream effects. Given a snapshot of cellular activity, it can be challenging to tell where a disturbance originated. The presence of an ever-greater variety of high-throughput biological data offers an opportunity to examine cellular behavior from multiple angles, but also presents the statistical challenge of how to effectively analyze data from multiple sources...
May 17, 2018: Biometrics
https://www.readbyqxmd.com/read/29771789/raltegravir-1200-mg-once-daily-vs-400-mg-twice-daily-with-emtricitabine-and-tenofovir-disoproxil-fumarate-for-previously-untreated-hiv-1-infection-week-96-results-from-oncemrk-a-randomized-double-blind-non-inferiority-trial
#8
Pedro Cahn, Paul E Sax, Kathleen Squires, Jean-Michel Molina, Winai Ratanasuwan, Mohammed Rassool, Mark Bloch, Xia Xu, Yan Zhou, Brenda Homony, Deborah Hepler, Hedy Teppler, George J Hanna, Bach-Yen Nguyen, Wayne Greaves
BACKGROUND: Raltegravir 1200mg (2x600mg tablets) once daily (QD) demonstrated non-inferior efficacy and similar safety to raltegravir 400mg BID at Week 48 of the ONCEMRK trial. Here we report the Week 96 results from this study. METHODS: ONCEMRK is a phase 3, multicenter, double-blind, non-inferiority trial comparing raltegravir 1200mg QD to raltegravir 400mg BID in treatment-naïve HIV-1-infected adults. Participants were assigned (2:1) to raltegravir 2x600mg QD or 400mg BID, both with emtricitabine and tenofovir disoproxil fumarate (FTC/TDF) for 96 weeks...
May 3, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29771209/caring-for-the-healthcare-professional
#9
Keith Adamson, Nancy Searl, Sonia Sengsavang, John Yardley, Mark George, Peter Rumney, Judy Hunter, Sakeena Myers-Halbig
Purpose Hospitals must systematically support employees in innovative ways to uphold a culture of care that strengthens the system. At a leading Canadian academic pediatric rehabilitation hospital, over 90 percent of clinicians viewed Schwartz Rounds™ (SR) as a hospital priority, resulting in its formal implementation as a quality improvement initiative. The purpose of this paper is to describe how the hospital implemented SR to support the socio-emotional impact of providing care. Design/methodology/approach This quantitative descriptive study provides a snapshot of the impact of each SR through online surveys at four assessment points (SR1-SR4)...
May 21, 2018: Journal of Health Organization and Management
https://www.readbyqxmd.com/read/29770567/association-between-polymorphisms-in-the-promoter-region-of-mir-17-92-cluster-and-systemic-lupus-erythematosus-in-a-chinese-population
#10
Rong Wang, Chun-Fang Wang, Hai-Mei Qin, Yu-Lan Lu, Gui-Jiang Wei, Hua-Tuo Huang, Yang Xiang, Jun-Li Wang, Yan Lan, Ye-Sheng Wei
The aim of this study was to investigate the association of genetic polymorphisms in the promoter region of miR-17-92 with systemic lupus erythematosus (SLE). The gene polymorphism was analysed using SNaPshot in 312 SLE patients and 396 controls. Relative expression of miR-17-92 was measured by quantitative real-time PCR. Association was found between rs9515692 and a decreased risk of SLE (CT vs CC: OR = 0.65, 95%CI, 0.46-0.92, P = .014; CT+TT vs CC: OR = 0.64, 95%CI, 0.46-0.90, P = .009; T vs C: OR = 0.69, 95%CI, 0...
May 16, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29770418/effect-of-puckering-motion-and-hydrogen-bond-formation-on-the-vibrational-circular-dichroism-spectrum-of-a-flexible-molecule-the-case-of-s-1-indanol
#11
Katia Le Barbu-Debus, Arne Scherrer, Aude Bouchet, Daniel Sebastiani, Rodolphe Vuilleumier, Anne Zehnacker
The influence of flexibility and hydrogen bond formation on the IR absorption and vibrational circular dichroism (VCD) spectrum of a floppy protic molecule, namely, (S)-1-indanol, is studied in both non-polar CCl4 and polar DMSO solvents. The experimental IR absorption and VCD spectra obtained by Fourier transform spectroscopy are interpreted using both static density functional theory (DFT) calculations and first principles molecular dynamics (FPMD) within DFT, using the nuclear velocity perturbation theory (NVPT)...
May 17, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29769347/avian-influenza-viruses-in-wild-birds-virus-evolution-in-a-multi-host-ecosystem
#12
Divya Venkatesh, Marjolein J Poen, Theo M Bestebroer, Rachel D Scheuer, Oanh Vuong, Mzia Chkhaidze, Anna Machablishvili, Jimsher Mamuchadze, Levan Ninua, Nadia B Fedorova, Rebecca A Halpin, Xudong Lin, Amy Ransier, Timothy B Stockwell, David E Wentworth, Divya Kriti, Jayeeta Dutta, Harm van Bakel, Anita Puranik, Marek J Slomka, Steve Essen, Ian H Brown, Ron A M Fouchier, Nicola S Lewis
Wild ducks and gulls are the major reservoirs for avian influenza A viruses (AIVs). The mechanisms that drive AIV evolution are complex at sites where various duck and gull species from multiple flyways breed, winter or stage. The Republic of Georgia is located at the intersection of three migratory flyways: Central Asian Flyway, East Asian/East African Flyway and Black Sea/Mediterranean Flyway. For six consecutive years (2010-2016), we collected AIV samples from various duck and gull species that breed, migrate and overwinter in Georgia...
May 16, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29769290/assessment-of-an-organ-specific-de-novo-transcriptome-of-the-nematode-trap-crop-solanum-sisymbriifolium
#13
Alexander Q Wixom, N Carol Casavant, Joseph C Kuhl, Fangming Xiao, Louise-Marie Dandurand, Allan B Caplan
Solanum sisymbriifolium , also known as "Litchi Tomato" or "Sticky Nightshade," is an undomesticated and poorly researched plant related to potato and tomato. Unlike the latter species, S. sisymbriifolium induces eggs of the cyst nematode, Globodera pallida , to hatch and migrate into its roots, but then arrests further nematode maturation. In order to provide researchers with a partial blueprint of its genetic make-up so that the mechanism of this response might be identified, we used single molecule real time (SMRT) sequencing to compile a high quality de novo transcriptome of 41,189 unigenes drawn from individually sequenced bud, root, stem, and leaf RNA populations...
May 16, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29768915/relative-ligand-binding-free-energies-calculated-from-multiple-short-qm-mm-md-simulations
#14
Casper Steinmann, Martin A Olsson, Ulf Ryde
We have devised a new efficient approach to compute combined quantum mechanical (QM) and molecular mechanical (MM, i.e. QM/MM) ligand-binding relative free energies. Our method employs the reference-potential approach with free-energy perturbation both at the MM level (between the two ligands) and from MM to QM/MM (for each ligand). To ensure that converged results are obtained for the MM→QM/MM perturbations, explicit QM/MM molecular dynamics (MD) simulations are performed with two intermediate mixed states...
May 17, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29765241/prevalence-of-antibiotic-prescription-in-southern-italian-outpatients-real-world-data-analysis-of-socioeconomic-and-sociodemographic-variables-at-a-municipality-level
#15
Veronica Russo, Valeria Marina Monetti, Francesca Guerriero, Ugo Trama, Antonella Guida, Enrica Menditto, Valentina Orlando
Purpose: The aim of this study was to analyze the geographic variation in systemic antibiotic prescription at a regional level and to explore the influence of socioeconomic and sociodemographic variables. Methods: This study was a retrospective analysis of reimbursement pharmacy records in the outpatient settings of Italy's Campania Region in 2016. Standardized antibiotic prescription rates were calculated at municipality and Local Health Unit (LHU) level. Antibiotic consumption was analyzed as defined daily doses (DDD)/1000 inhabitants per day (DID)...
2018: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/29762683/peri-procedural-routines-implantation-techniques-and-procedure-related-complications-in-patients-undergoing-implantation-of-subcutaneous-or-transvenous-automatic-cardioverter-defibrillators-results-of-the-european-snapshot-survey-on-s-icd-implantation-esss
#16
Radoslaw Lenarczyk, Serge Boveda, Kristina H Haugaa, Tatjana S Potpara, Pawel Syska, Ewa Jedrzejczyk-Patej, Michel Chauvin, Nicolas Sadoul, Nikolaos Dagres
The aim of this European Heart Rhythm Association (EHRA) prospective snapshot survey is to assess peri-procedural practices, implantation techniques, and short-term procedure-related complications associated with implantation of subcutaneous implantable cardioverter-defibrillator (S-ICD) or transvenous implantable cardioverter-defibrillator (TV-ICD), across tertiary European electrophysiology centres. An internet-based electronic questionnaire concerning implantation settings, peri-procedural routines, techniques, personnel, complications, and patient outcomes was sent to the centres routinely implanting both TV-ICDs and S-ICDs...
May 11, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29762295/more-than-a-snapshot-of-the-spine-commentary-on-an-article-by-kenshi-daimon-md-et-al-a-20-year-prospective-longitudinal-study-of-degeneration-of-the-cervical-spine-in-a-volunteer-cohort-assessed-using-mri-follow-up-of-a-cross-sectional-study
#17
https://www.readbyqxmd.com/read/29761399/chromatin-immunoprecipitation-in-macrophages
#18
Germain Rousselet
Macrophages are highly polymorphic depending upon their cellular origin and their tissue environment. The different forms that a macrophage can adopt fundamentally reflect different transcription patterns. In addition, macrophages are exquisitely sensitive to a wide variety of signals coming from either infectious agents or damaged tissues. Most of the responses to these signals involve rapid and massive modifications of transcription. The control of transcription relies on the one hand on the posttranslational modification of histones, and on the other hand on the binding on the chromatin of multiple protein complexes...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29757888/ctca-image-quality-improvement-by-using-snapshot-freeze-technique-under-prospective-and-retrospective-electrocardiographic-gating-erratum
#19
(no author information available yet)
No abstract text is available yet for this article.
May 2018: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29757106/a-snapshot-of-australian-social-workers-in-palliative-care-and-their-work-with-estranged-clients
#20
Kylie Agllias
This paper describes a mixed method survey that was administered to a group of Australian palliative care social workers (n = 27). Specifically, it aimed to investigate the ways that social workers understood and worked with clients who were estranged from family at the end of life. Respondents suggested that estrangement potentially impacted clients emotionally, practically, and existentially. They were challenged to make clear assessments, provide emotional support, encourage news ways of thinking about estrangement, to manage practical issues, work with the client's family, and monitor their own professional role...
May 14, 2018: Social Work in Health Care
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