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https://www.readbyqxmd.com/read/28750065/biochemical-characterization-of-a-new-nicotinamidase-from-an-unclassified-bacterium-thriving-in-a-geothermal-water-stream-microbial-mat-community
#1
Rubén Zapata-Pérez, Ana-Belén Martínez-Moñino, Antonio-Ginés García-Saura, Juana Cabanes, Hideto Takami, Álvaro Sánchez-Ferrer
Nicotinamidases are amidohydrolases that convert nicotinamide into nicotinic acid, contributing to NAD+ homeostasis in most organisms. In order to increase the number of nicotinamidases described to date, this manuscript characterizes a nicotinamidase obtained from a metagenomic library fosmid clone (JFF054_F02) obtained from a geothermal water stream microbial mat community in a Japanese epithermal mine. The enzyme showed an optimum temperature of 90°C, making it the first hyperthermophilic bacterial nicotinamidase to be characterized, since the phylogenetic analysis of this fosmid clone placed it in a clade of uncultured geothermal bacteria...
2017: PloS One
https://www.readbyqxmd.com/read/28750064/modified-human-glucagon-like-peptide-1-glp-1-produced-in-e-coli-has-a-long-acting-therapeutic-effect-in-type-2-diabetic-mice
#2
Fangfang Xu, Kevin Yueju Wang, Nan Wang, Gangqiang Li, Dehu Liu
Glucagon-like peptide 1 (GLP-1) is a very potent insulinotropic hormone secreted into the blood stream after eating. Thus, it has potential to be used in therapeutic treatment of diabetes. The half-life of GLP-1, however, is very short due to its rapid cleavage by dipeptidyl peptidase IV (DPP-IV). This presents a great challenge if it is to be used as a therapeutic drug. GLP-1, like many other small peptides, is commonly produced through chemical synthesis, but is limited by cost and product quantity. In order to overcome these problems, a sequence encoding a six codon-optimized tandem repeats of modified GLP-1 was constructed and expressed in the E...
2017: PloS One
https://www.readbyqxmd.com/read/28750027/differential-metabolic-profiles-associated-to-movement-behaviour-of-stream-resident-brown-trout-salmo-trutta
#3
Neus Oromi, Mariona Jové, Mariona Pascual-Pons, Jose Luis Royo, Rafel Rocaspana, Enric Aparicio, Reinald Pamplona, Antoni Palau, Delfi Sanuy, Joan Fibla, Manuel Portero-Otin
The mechanisms that can contribute in the fish movement strategies and the associated behaviour can be complex and related to the physiology, genetic and ecology of each species. In the case of the brown trout (Salmo trutta), in recent research works, individual differences in mobility have been observed in a population living in a high mountain river reach (Pyrenees, NE Spain). The population is mostly sedentary but a small percentage of individuals exhibit a mobile behavior, mainly upstream movements. Metabolomics can reflect changes in the physiological process and can determine different profiles depending on behaviour...
2017: PloS One
https://www.readbyqxmd.com/read/28749374/nitrogen-doped-rgo-co3o4-nanograin-cookies-highly-porous-and-robust-catalyst-for-removing-nitrophenol-from-waste-water
#4
Erum Pervaiz, Muhammad Syam Azher Virk, Zhang Bingxue, Congling Yin, Minghui Yang
Fabrication of nanograins with uniform morphology wrapped with reduced graphene oxide (RGO) in a designed fashion is critical for obtaining large surface, high porosity and efficient catalytic ability at mild conditions. Hybrid structures of metal oxides decorated on two dimensional (2D) RGO lacked interface and channels between individual grains and RGO. Present work merely focused the synthesis of RGO wrapped Co3O4 nanograins architecture in micron sized polyhedrons and the ability of reducing aromatic nitro compounds...
July 27, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28749151/on-the-boundary-conditions-of-effort-losses-and-effort-gains-in-action-teams
#5
Joachim Hüffmeier, Michael Filusch, Jens Mazei, Guido Hertel, Andreas Mojzisch, Stefan Krumm
While people's willingness to work hard can be reduced in teams (i.e., effort losses in teams as compared with individual work), it is less recognized that teamwork can also stimulate additional efforts (i.e., effort gains). Building on and extending existing theory, we (a) suggest an integration of these two research streams, and (b) provide evidence for team-related effort gains in action teams. In a first study, we tested our predictions by reanalyzing a field data set of 302,576 swimming performances in individual and relay races (Neugart & Richiardi, 2013)...
July 27, 2017: Journal of Applied Psychology
https://www.readbyqxmd.com/read/28748837/the-seroprevalence-of-coxiella-burnetii-in-erzincan-turkey-identification-of-the-risk-factors-and-their-relationship-with-geographical-features
#6
Aytekin Cikman, Merve Aydin, Baris Gulhan, Faruk Karakecili, Adalet Ozcicek, Ozan Arif Kesik, Mehmet Parlak, Fatih Ozcelik, Bilge Gültepe
BACKGROUND & OBJECTIVES: Coxiella burnetii (C. burnetii) bacterium, the causative agent of Q fever has regained importance due to the increasing cases of infections and outbreaks. A cross-sectional descriptive study was conducted to investigate the seroprevalence of C. burnetii in human populations of Erzincan province located in the eastern Turkey, identify the risk factors, and to explore the relationship between geographical features. METHODS: A total of 368 people residing in the rural (306) and urban (62) areas of the province were included in the study...
April 2017: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28748716/late-urinary-morbidity-and-quality-of-life-after-radical-prostatectomy-and-salvage-radiotherapy-for-prostate-cancer
#7
Maria Ervandian, Morten Høyer, Stine Elleberg Petersen, Lisa Sengeløv, Steinbjørn Hansen, Mette Moe Kempel, Peter Meidahl Petersen, Michael Borre
OBJECTIVE: There is a paucity of knowledge of long-term urinary morbidity in patients treated for prostate cancer (PCa) with radical prostatectomy (RP) and salvage radiotherapy (SRT). Improved long-term survival calls for heightened awareness of late effects from radiotherapy after RP. The purpose of this study was to assess late urinary morbidity and its potential impact on quality of life (QoL) in patients treated with RP plus SRT compared with patients treated with RP alone. MATERIALS AND METHODS: Long-term morbidity and QoL were evaluated using a cross-sectional design with validated questionnaires in urinary morbidity [Danish Prostatic Symptom Score (DAN-PSS)] and QoL [European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30)]...
July 27, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28748636/compact-cell-settlers-for-perfusion-cultures-of-microbial-and-mammalian-cells
#8
Cassandra A Freeman, Premsingh S D Samuel, Dhinakar S Kompala
As microbial secretory expression systems have become well developed for microbial yeast cells, such as Saccharomyces cerevisiae and Pichia pastoris, it is advantageous to develop high cell density continuous perfusion cultures of microbial yeast cells to retain the live and productive yeast cells inside the perfusion bioreactor while removing the dead cells and cell debris along with the secreted product protein in the harvest stream. While the previously demonstrated inclined or lamellar settlers can be used for such perfusion bioreactors for microbial cells, the size and footprint requirements of such inefficiently scaled up devices can be quite large in comparison to the bioreactor size...
July 27, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28748613/a-rapid-method-for-the-determination-of-brominated-flame-retardant-concentrations-in-plastics-and-textiles-entering-the-waste-stream
#9
Mohamed Abou-Elwafa Abdallah, Daniel S Drage, Martin Sharkey, Harald Berresheim, Stuart Harrad
Due to new European legislation, products going to waste are subject to "low persistent organic pollutant concentration limits". Concentrations of restricted brominated flame retardants in waste products must be determined. A rapid extraction and clean-up method was developed for determination of brominated flame retardants in various plastics and textiles. The optimised method used vortexing and ultrasonication in dichloromethane followed by sulfuric acid clean-up to determine target compounds. Polybrominated diphenyl ethers were determined by gas chromatography with mass spectrometry and hexabromocyclododecane by liquid chromatography with tandem mass spectrometry...
July 27, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28748430/inicu-integrated-neonatal-care-unit-capturing-neonatal-journey-in-an-intelligent-data-way
#10
Harpreet Singh, Gautam Yadav, Raghuram Mallaiah, Preetha Joshi, Vinay Joshi, Ravneet Kaur, Suneyna Bansal, Samir K Brahmachari
Neonatal period represents first 28 days of life, which is the most vulnerable time for a child's survival especially for the preterm babies. High neonatal mortality is a prominent and persistent problem across the globe. Non-availability of trained staff and infrastructure are the major recognized hurdles in the quality care of these neonates. Hourly progress growth charts and reports are still maintained manually by nurses along with continuous calculation of drug dosage and nutrition as per the changing weight of the baby...
August 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28748298/comparison-of-sodium-hypochlorite-extrusion-by-five-irrigation-systems-using-an-artificial-root-socket-model-and-a-quantitative-chemical-method
#11
Adham A Azim, Hacer Aksel, M Margaret Jefferson, George T-J Huang
OBJECTIVES: This is to compare the volumes of irrigant apically extruded by five irrigation systems in an artificial socket model simulating clinical conditions. MATERIALS AND METHODS: Twenty extracted human single-rooted teeth were enlarged to size 40/04 and then embedded in silicone impression material. The root canal space was irrigated with nominal 3% sodium hypochlorite (NaOCl) using standard needle irrigation (SNI) with a 30-gauge notched needle, EndoActivator (EA), XP Endo Finisher (XP Endo), EndoVac (EV), and photon-induced photoacoustic streaming (PIPS)...
July 26, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28747994/lignin-valorization-lignin-nanoparticles-as-high-value-bio-additive-for-multifunctional-nanocomposites
#12
Dong Tian, Jinguang Hu, Jie Bao, Richard P Chandra, Jack N Saddler, Canhui Lu
BACKGROUND: Although conversion of low value but high-volume lignin by-product to its usable form is one of the determinant factors for building an economically feasible integrated lignocellulose biorefinery, it has been challenged by its structural complexity and inhomogeneity. We and others have shown that uniform lignin nanoparticles can be produced from a wide range of technical lignins, despite the varied lignocellulosic biomass and the pretreatment methods/conditions applied. This value-added nanostructure lignin enriched with multifunctional groups can be a promising versatile material platform for various downstream utilizations especially in the emerging nanocomposite fields...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28747440/aligned-fibers-direct-collective-cell-migration-to-engineer-closing-and-non-closing-wound-gaps
#13
Puja Sharma, Colin Ng, Aniket Jana, Abinash Padhi, Paige Szymanski, Jerry S H Lee, Bahareh Behkam, Amrinder S Nain
Cell emergence onto damaged or organized fibrous extracellular matrix (ECM) is a crucial precursor to collective cell migration in wound closure and cancer metastasis, respectively. However, there is a fundamental gap in our quantitative understanding of the role of local ECM size and arrangement in cell emergence based migration and local gap closure. Here, using ECM-mimicking nanofibers bridging cell monolayers, we describe a method to recapitulate and quantitatively describe these in vivo behaviors over multi spatial (single cell to cell sheets) and temporal (minutes-weeks) scales...
July 26, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28747367/rapid-detection-of-bacillus-anthracis-blood-stream-infections-using-a-novel-assay-in-the-genexpert-system
#14
Padmapriya P Banada, Srinidhi Deshpande, Riccardo Russo, Eric Singleton, Darshini Shah, Bhavana Patel, Michele Burday, Ranie Koshy, Qing Wang, Martin Jones, Alexander Gall, Sergey Lokhov, Robert Kwiatkowski, David Persing, Nancy Connell, David Alland
BACKGROUND.Bacillus anthracis is a tier1 select agent with the potential to quickly cause severe disease. Rapid identification of this pathogen may accelerate treatment and reduce mortality in the event of a bioterrorism attack. We developed a rapid and sensitive assay to detect B. anthracis bacteremia using a system that is suitable for point of care testing.METHODS. A filter-based cartridge that included both sample processing and PCR amplification functions was loaded with all reagents needed for sample processing and multiplex nested PCR...
July 26, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28747202/knowledge-of-non-communicable-diseases-and-practices-related-to-healthy-lifestyles-among-adolescents-in-state-schools-of-a-selected-educational-division-in-sri-lanka
#15
A U Gamage, P L Jayawardana
BACKGROUND: Behaviors established during the adolescence have life-long consequences to the onset of non-communicable diseases (NCDs) in later life. Therefore, it is essential to understand adolescents' knowledge and practices with the intention of developing preventive programs focusing on this age group. The objective of the study was to assess knowledge about selected NCDs, and lifestyle choices among school students aged 17-19 years in state schools of the Maharagama Educational Division, Sri Lanka...
July 26, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28746815/higher-order-areas-of-the-mouse-visual-cortex
#16
Lindsey L Glickfeld, Shawn R Olsen
The brain has evolved to transform sensory information in the environment into neural representations that can be used for perception and action. Higher-order sensory cortical areas, with their increasingly complex receptive fields and integrative properties, are thought to be critical nodes for this function. This is especially true in the primate visual cortex, in which functionally specialized areas are engaged in parallel streams to support diverse computations. Recent anatomical and physiological studies of the mouse visual cortex have revealed a similarly complex network of specialized higher-order areas...
July 26, 2017: Annual Review of Vision Science
https://www.readbyqxmd.com/read/28746318/correlation-of-visual-prostate-symptom-score-with-international-prostate-symptom-score-and-uroflowmetry-parameters-in-nepalese-male-patients-with-lower-urinary-tract-symptoms
#17
K K Bhomi, N Subedi, P P Panta
INTRODUCTION: International prostate symptom score is a validated questionnaire used to evaluate the lower urinary tract symptoms in benign prostatic hyperplasia. Visual prostate symptom score is a new simplified symptom score with pictograms to evaluate the same. We evaluated the correlation of visual prostate symptom score with international prostate symptom score and uroflowmetry parameters in Nepalese male patients with lower urinary tract symptoms. METHODS: Male patients aged ≥40 years attending the Urology clinic were enrolled in the study...
April 2017: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28745951/preventing-bloodstream-infection-in-iv-therapy
#18
Kevin Hugill
Healthcare-associated infections (HAI) are one cause of preventable harm to patients, and are a clinical, political and economic concern. Vascular access, via a peripheral or central vascular device, is a routine experience for most patients receiving hospital care and is increasingly commonplace in health care at home. Because it is so common, ensuring safe vascular access is an essential focus for all health professionals. All vascular access procedures are invasive, regardless of patient group, therapeutic rationale, the device used, route and site of insertion and particular technique...
July 27, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28745515/hydrology-of-the-north-klondike-river-carbon-export-water-balance-and-inter-annual-climate-influences-within-a-sub-alpine-permafrost-catchment
#19
Anthony Lapp, Ian Clark, Andrew Macumber, Tim Patterson
Arctic and sub-arctic watersheds are undergoing significant changes due to recent climate warming and degrading permafrost, engendering enhanced monitoring of arctic rivers. Smaller catchments provide understanding of discharge, solute flux and groundwater recharge at the process level that contributes to an understanding of how larger arctic watersheds are responding to climate change. The North Klondike River, located in west central Yukon, is a sub-alpine permafrost catchment, which maintains an active hydrological monitoring station with a record of >40 years...
July 26, 2017: Isotopes in Environmental and Health Studies
https://www.readbyqxmd.com/read/28744917/the-vocal-sac-of-hylodidae-amphibia-anura-phylogenetic-and-functional-implications-of-a-unique-morphology
#20
Agustin J Elias-Costa, Rachel Montesinos, Taran Grant, Julián Faivovich
Anuran vocal sacs are elastic chambers that recycle exhaled air during vocalizations and are present in males of most species of frogs. Most knowledge of the diversity of vocal sacs relates to external morphology; detailed information on internal anatomy is available for few groups of frogs. Frogs of the family Hylodidae, which is endemic to the Atlantic Forest of Brazil and adjacent Argentina and Paraguay, have three patterns of vocal sac morphology-that is, single, subgular; paired, lateral; and absent. The submandibular musculature and structure of the vocal sac mucosa (the internal wall of the vocal sac) of exemplar species of this family and relatives were studied...
July 25, 2017: Journal of Morphology
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