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https://www.readbyqxmd.com/read/29160704/nanobiotechnology-for-environment-innovative-solutions-for-the-management-of-harmful-algal-blooms
#1
Matthew Robert Gellert, Beum Jun Kim, Samuel Evan Reffsin, Sebastian Eureko Jusuf, Nicole Denise Wagner, Stephen Winans, Mingming Wu
Nanobiotechnology has played important roles in solving contemporary health problems including cancer and diabetes, but has not yet been widely exploited for problems in food security and environmental protection. Water scarcity is an emerging worldwide problem due to climate change and population increase. Current methods of managing water resources are not efficient or sustainable. In this perspective, we focus on harmful algal blooms to demonstrate how nanobiotechnology can be explored to understand microbe-environment interaction and allow for toxin/pollutant detection with significantly improved sensitivity...
November 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29160217/morphological-and-molecular-confirmation-of-myxobolus-cerebralis-myxospores-infecting-wild%C3%A2-caught-and-cultured-trout-in-north-carolina-se-usa
#2
Carlos F Ruiz, Jacob M Rash, Cova R Arias, Doug A Besler, Raphael Orélis-Ribeiro, Matthew R Womble, Jackson R Roberts, Micah B Warren, Candis L Ray, Stacey Lafrentz, Stephen A Bullard
We used microscopy and molecular biology to provide the first documentation of infections of Myxobolus cerebralis (Myxozoa: Myxobolidae), the etiological agent of whirling disease, in trout (Salmonidae) from North Carolina (USA) river basins. A total of 1085 rainbow trout Oncorhynchus mykiss, 696 brown trout Salmo trutta, and 319 brook trout Salvelinus fontinalis from 43 localities across 9 river basins were screened. Myxospores were observed microscopically in pepsin-trypsin digested heads of rainbow and brown trout from the Watauga River Basin...
November 21, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/29155950/ensembl-2018
#3
Daniel R Zerbino, Premanand Achuthan, Wasiu Akanni, M Ridwan Amode, Daniel Barrell, Jyothish Bhai, Konstantinos Billis, Carla Cummins, Astrid Gall, Carlos García Girón, Laurent Gil, Leo Gordon, Leanne Haggerty, Erin Haskell, Thibaut Hourlier, Osagie G Izuogu, Sophie H Janacek, Thomas Juettemann, Jimmy Kiang To, Matthew R Laird, Ilias Lavidas, Zhicheng Liu, Jane E Loveland, Thomas Maurel, William McLaren, Benjamin Moore, Jonathan Mudge, Daniel N Murphy, Victoria Newman, Michael Nuhn, Denye Ogeh, Chuang Kee Ong, Anne Parker, Mateus Patricio, Harpreet Singh Riat, Helen Schuilenburg, Dan Sheppard, Helen Sparrow, Kieron Taylor, Anja Thormann, Alessandro Vullo, Brandon Walts, Amonida Zadissa, Adam Frankish, Sarah E Hunt, Myrto Kostadima, Nicholas Langridge, Fergal J Martin, Matthieu Muffato, Emily Perry, Magali Ruffier, Dan M Staines, Stephen J Trevanion, Bronwen L Aken, Fiona Cunningham, Andrew Yates, Paul Flicek
The Ensembl project has been aggregating, processing, integrating and redistributing genomic datasets since the initial releases of the draft human genome, with the aim of accelerating genomics research through rapid open distribution of public data. Large amounts of raw data are thus transformed into knowledge, which is made available via a multitude of channels, in particular our browser (http://www.ensembl.org). Over time, we have expanded in multiple directions. First, our resources describe multiple fields of genomics, in particular gene annotation, comparative genomics, genetics and epigenomics...
November 16, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29152628/highly-efficient-gas-phase-reactivity-of-protonated-pyridine-radicals-with-propene
#4
Cameron C Bright, Matthew B Prendergast, Patrick D Kelly, James P Bezzina, Stephen J Blanksby, Gabriel da Silva, Adam J Trevitt
Small nitrogen containing heteroaromatics are fundamental building blocks for many biological molecules, including the DNA nucleotides. Pyridine, as a prototypical N-heteroaromatic, has been implicated in the chemical evolution of many extraterrestrial environments, including the atmosphere of Titan. This paper reports on the gas-phase ion-molecule reactions of the three dehydro-N-pyridinium radical cation isomers with propene. Photodissociation ion-trap mass spectrometry experiments are used to measure product branching ratios and reaction kinetics...
November 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29152600/role-of-epinephrine-and-extracorporeal-membrane-oxygenation-in-the-management-of-ischemic-refractory-ventricular-fibrillation-a-randomized-trial-in-pigs
#5
Jason A Bartos, Sebastian Voicu, Timothy R Matsuura, Adamantios Tsangaris, Georgios Sideris, Brett A Oestreich, Stephen A George, Matthew Olson, Kadambari Chandra Shekar, Jennifer N Rees, Kathleen Carlson, Pierre Sebastian, Scott McKnite, Ganesh Raveendran, Tom P Aufderheide, Demetris Yannopoulos
xtracorporeal membrane oxygenation (ECMO) is used in cardiopulmonary resuscitation (CPR) of refractory cardiac arrest. We used a 2×2 study design to compare ECMO versus CPR and epinephrine versus placebo in a porcine model of ischemic refractory ventricular fibrillation (VF). Pigs underwent 5 minutes of untreated VF, 10 minutes of CPR, and were randomized to receive epinephrine versus placebo for another 35 minutes. Animals were further randomized to LAD reperfusion at minute 45 with ongoing CPR versus veno-arterial ECMO cannulation at minute 45 of CPR and subsequent LAD reperfusion...
June 2017: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/29150610/implications-of-improved-representations-of-plant-respiration-in-a-changing-climate
#6
Chris Huntingford, Owen K Atkin, Alberto Martinez-de la Torre, Lina M Mercado, Mary A Heskel, Anna B Harper, Keith J Bloomfield, Odhran S O'Sullivan, Peter B Reich, Kirk R Wythers, Ethan E Butler, Ming Chen, Kevin L Griffin, Patrick Meir, Mark G Tjoelker, Matthew H Turnbull, Stephen Sitch, Andy Wiltshire, Yadvinder Malhi
Land-atmosphere exchanges influence atmospheric CO2. Emphasis has been on describing photosynthetic CO2 uptake, but less on respiration losses. New global datasets describe upper canopy dark respiration (R d) and temperature dependencies. This allows characterisation of baseline R d, instantaneous temperature responses and longer-term thermal acclimation effects. Here we show the global implications of these parameterisations with a global gridded land model. This model aggregates R d to whole-plant respiration R p, driven with meteorological forcings spanning uncertainty across climate change models...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29150198/comparative-effectiveness-of-extended-release-naltrexone-versus-buprenorphine-naloxone-for-opioid-relapse-prevention-x-bot-a-multicentre-open-label-randomised-controlled-trial
#7
Joshua D Lee, Edward V Nunes, Patricia Novo, Ken Bachrach, Genie L Bailey, Snehal Bhatt, Sarah Farkas, Marc Fishman, Phoebe Gauthier, Candace C Hodgkins, Jacquie King, Robert Lindblad, David Liu, Abigail G Matthews, Jeanine May, K Michelle Peavy, Stephen Ross, Dagmar Salazar, Paul Schkolnik, Dikla Shmueli-Blumberg, Don Stablein, Geetha Subramaniam, John Rotrosen
BACKGROUND: Extended-release naltrexone (XR-NTX), an opioid antagonist, and sublingual buprenorphine-naloxone (BUP-NX), a partial opioid agonist, are pharmacologically and conceptually distinct interventions to prevent opioid relapse. We aimed to estimate the difference in opioid relapse-free survival between XR-NTX and BUP-NX. METHODS: We initiated this 24 week, open-label, randomised controlled, comparative effectiveness trial at eight US community-based inpatient services and followed up participants as outpatients...
November 14, 2017: Lancet
https://www.readbyqxmd.com/read/29148835/2017-white-paper-on-recent-issues-in-bioanalysis-aren-t-bmv-guidance-guidelines-scientific-part-1-lcms-small-molecules-peptides-and-small-molecule-biomarkers
#8
Jan Welink, Eric Yang, Nicola Hughes, Brian Rago, Eric Woolf, Jens Sydor, Laura Coppola, Brad Ackermann, Wenkui Li, Stephen C Alley, Mark Arnold, Isabella Berger, Chad Briscoe, Michael Buonarati, Mark Bustard, Mark Cancilla, Seongeun Julia Cho, Jeff Duggan, Daniela Fraier, Fabio Garofolo, Rachel Green, Sam Haidar, Lucinda Hittle, Akiko Ishii-Watabe, Rafiq Islam, Rand Jenkins, Barry Jones, John Kadavil, Sean Kassim, Olga Kavetska, Olivier Le Blaye, Anita Lee, Hanlan Liu, John Mehl, Gustavo Mendes Lima Santos, Adrien Musuku, Ragu Ramanathan, Yoshiro Saito, Natasha Savoie, Scott Summerfield, Sekhar Surapaneni, Matthew Szapacs, Nilufer Tampal, Tom Verhaeghe, Stephen Vinter, Emma Whale
The 2017 11th Workshop on Recent Issues in Bioanalysis (11th WRIB) took place in Los Angeles/Universal City, California from 3 April 2017 to 7 April 2017 with participation of close to 750 professionals from pharmaceutical/biopharmaceutical companies, biotechnology companies, contract research organizations and regulatory agencies worldwide. WRIB was once again a 5-day, weeklong event - A Full Immersion Week of Bioanalysis, Biomarkers and Immunogenicity. As usual, it was specifically designed to facilitate sharing, reviewing, discussing and agreeing on approaches to address the most current issues of interest including both small and large molecule analysis involving LCMS, hybrid LBA/LCMS and ligand-binding assay (LBA) approaches...
November 17, 2017: Bioanalysis
https://www.readbyqxmd.com/read/29148748/total-syntheses-of-majucin-and-jiadifenoxolane-a-complex-majucin-type-illicium-sesquiterpenes
#9
Matthew L Condakes, Kevin Hung, Stephen Harwood, Thomas J Maimone
We report the first chemical syntheses of both (-)-majucin and (-)-jiadifenoxolane A via 10 net oxidations from the ubiquitous terpene (+)-cedrol. Additionally, this approach allows for access to other majucin-type sesquiterpenes, like (-)-jiadifenolide, (-)-jiadifenin, and (-)-(1R,10S)-2-oxo-3,4-dehydroxyneomajucin (ODNM) along the synthetic pathway. Site-selective aliphatic C(sp3)-H bond oxidation reactions serve as the cornerstone of this work which offers access to highly oxidized natural products from an abundant and renewable terpene feedstock...
November 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29148715/ultrafast-long-range-charge-separation-in-nonfullerene-organic-solar-cells
#10
Yasunari Tamai, Yeli Fan, Vincent O Kim, Kostiantyn Ziabrev, Akshay Rao, Stephen Barlow, Seth R Marder, Richard H Friend, S Matthew Menke
Rapid, long-range charge separation in polymer-fullerene organic solar cells (OSCs) enables electrons and holes to move beyond their Coulomb capture radius and overcome geminate recombination. Understanding the nature of charge generation and recombination mechanisms in efficient, nonfullerene-acceptor-based OSCs are critical to further improve device performance. Here we report charge dynamics in an OSC using a perylene diimide (PDI) dimer acceptor. We use transient absorption spectroscopy to track the time evolution of electroabsorption caused by the dipolar electric field generated between electron-hole pairs as they separate after ionization at the donor-acceptor interface...
November 17, 2017: ACS Nano
https://www.readbyqxmd.com/read/29146995/gaba-concentrations-in-the-anterior-temporal-lobe-predict-human-semantic-processing
#11
JeYoung Jung, Stephen R Williams, Faezeh Sanaei Nezhad, Matthew A Lambon Ralph
There is now considerable convergent evidence from multiple methodologies and clinical studies that the human anterior temporal lobe (ATL) is a semantic representational hub. However, the neurochemical nature of the ATL in the semantic processing remains unclear. The current study investigated the neurochemical mechanism underlying semantic processing in the ATL. We combined functional magnetic resonance imaging (fMRI) with resting-state magnetic resonance spectroscopy (MRS) to measure task-related blood-oxygen level-dependent (BOLD) signal changes during sematic processing and resting-state GABA concentrations in the ATL...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29143868/fishtail-deformity-of-the-distal-humerus-association-with-osteochondritis-dissecans-of-the-capitellum
#12
Stephen J Lehnert, Matthew R Wanner, Boaz Karmazyn
BACKGROUND: Fishtail deformity is a rare deformity of the humerus exhibiting concavity of the lateral trochlea, resulting in ulnotrochlear joint derangement. We wanted to share our experience that osteochondritis dissecans of the capitellum is a common associated complication. OBJECTIVE: To summarize imaging of fishtail deformity in children centered on complications of the radiocapitellar joint. MATERIALS AND METHODS: From the radiology information system, we identified all patients <18 years with the diagnosis of fishtail deformity...
November 16, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29141739/advancing-global-health-through-development-and-clinical-trials-partnerships-a-randomized-placebo-controlled-double-blind-assessment-of-safety-tolerability-and-immunogenicity-of-plasmodium-falciparum-sporozoites-vaccine-for-malaria-in-healthy-equatoguinean
#13
Ally Olotu, Vicente Urbano, Ali Hamad, Martin Eka, Mwajuma Chemba, Elizabeth Nyakarungu, Jose Raso, Esther Eburi, Dolores O Mandumbi, Dianna Hergott, Carl D Maas, Mitoha O Ayekaba, Diosdado N Milang, Matilde R Rivas, Tobias Schindler, Oscar M Embon, Adam J Ruben, Elizabeth Saverino, Yonas Abebe, Natasha Kc, Eric R James, Tooba Murshedkar, Anita Manoj, Sumana Chakravarty, Minglin Li, Matthew Adams, Chris Schwabe, Luis Segura, Claudia Daubenberger, Marcel Tanner, Thomas L Richie, Peter F Billingsley, B Kim Lee Sim, Salim Abdulla, Stephen L Hoffman
Equatorial Guinea (EG) has implemented a successful malaria control program on Bioko Island. A highly effective vaccine would be an ideal complement to this effort and could lead to halting transmission and eliminating malaria. Sanaria(®)Plasmodium falciparum sporozoites (PfSPZ) Vaccine is being developed for this purpose. To begin the process of establishing the efficacy of and implementing a PfSPZ Vaccine mass vaccination program in EG, we decided to conduct a series of clinical trials of PfSPZ Vaccine on Bioko Island...
October 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29138293/icare-acs-improving-care-processes-for-patients-with-suspected-acute-coronary-syndrome-a-study-of-cross-system-implementation-of-a-national-clinical-pathway
#14
Martin P Than, John W Pickering, Jeremy M Dryden, Sally J Lord, S Andrew Aitken, Sally J Aldous, Kate E Allan, Michael W Ardagh, John W N Bonning, Rosie Callender, Laura R E Chapman, Jonathan P Christiansen, Andre P J Cromhout, Louise Cullen, Joanne M Deely, Gerard P Devlin, Katherine A Ferrier, Christopher M Florkowski, Christopher M A Frampton, Peter M George, Gregory J Hamilton, Allan S Jaffe, Andrew J Kerr, G Luke Larkin, Richard M Makower, Timothy J E Matthews, William A Parsonage, W Frank Peacock, Bradley F Peckler, Nicholaas C van Pelt, Louise Poynton, A Mark Richards, Anthony G Scott, Mark B Simmonds, David Smyth, Oliver P Thomas, Andrew C Y To, Stephen A Du Toit, Richard W Troughton, Kim M Yates
BACKGROUND : Efforts to safely reduce length of stay for emergency department patients with symptoms suggestive of acute coronary syndrome (ACS) have had mixed success. Few system-wide efforts affecting multiple hospital emergency departments have ever been evaluated. We evaluated the effectiveness of a nationwide implementation of clinical pathways for potential ACS in disparate hospitals. METHODS : This was a multicenter pragmatic stepped-wedge before-and-after trial in 7 New Zealand acute care hospitals with 31 332 patients investigated for suspected ACS with serial troponin measurements...
November 14, 2017: Circulation
https://www.readbyqxmd.com/read/29136256/incidence-of-and-risk-factors-for-inpatient-stroke-after-hip-fractures-in-the-elderly
#15
Andre M Samuel, Pablo J Diaz-Collado, Lauren K Szolomayer, Stephen J Nelson, Matthew L Webb, Adam M Lukasiewicz, Jonathan N Grauer
Although uncommon, stroke can be a catastrophic inpatient complication for patients with hip fractures. The current study determines the incidence of inpatient stroke after hip fractures in elderly patients, identifies risk factors associated with such strokes, and determines the association of stroke with short-term inpatient outcomes. A retrospective review of all patients aged 65 years or older with isolated hip fractures in the 2011 and 2012 National Trauma Data Bank was conducted. A total of 37,584 patients met inclusion criteria...
November 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/29136208/mouse-phenome-database-an-integrative-database-and-analysis-suite-for-curated-empirical-phenotype-data-from-laboratory-mice
#16
Molly A Bogue, Stephen C Grubb, David O Walton, Vivek M Philip, Georgi Kolishovski, Tim Stearns, Matthew H Dunn, Daniel A Skelly, Beena Kadakkuzha, Gregg TeHennepe, Govindarajan Kunde-Ramamoorthy, Elissa J Chesler
The Mouse Phenome Database (MPD; https://phenome.jax.org) is a widely used resource that provides access to primary experimental trait data, genotypic variation, protocols and analysis tools for mouse genetic studies. Data are contributed by investigators worldwide and represent a broad scope of phenotyping endpoints and disease-related traits in naïve mice and those exposed to drugs, environmental agents or other treatments. MPD houses individual animal data with detailed, searchable protocols, and makes these data available to other resources via API...
November 10, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29136116/prenatal-stress-glucocorticoids-and-developmental-programming-of-the-stress-response
#17
Patrick O McGowan, Stephen G Matthews
The early environment has a major impact on the developing embryo, fetus and infant. Parental adversity (maternal and paternal) and glucocorticoid exposure prior to conception and during pregnancy have profound effects on the development and subsequent function of the hypothalamic-pituitary-adrenal (HPA) axis and related behaviours. These effects are species-, sex- and age-specific, and depend on the timing and duration of exposure. The impact of these early exposures can extend across multiple generations, via both the maternal and paternal lineage, and recent studies have begun to determine the mechanisms by which this occurs...
November 10, 2017: Endocrinology
https://www.readbyqxmd.com/read/29135865/electrode-impedance-fluctuations-as-a-biomarker-for-inner-ear-pathology-after-cochlear-implantation
#18
June Choi, Matthew R Payne, Luke J Campbell, Christo W Bester, Carrie Newbold, Hayden Eastwood, Stephen J O'Leary
OBJECTIVES/HYPOTHESIS: Cochlear implant surgery now aims to preserve residual low frequency hearing. The current research explores whether fluctuations in the electrical impedance of cochlear implant electrodes may act as a biomarker for pathological changes that lead to the delayed loss of residual hearing. STUDY DESIGN: Secondary analysis of a double-blinded randomized trial, where methylprednisolone was administered intravenously before cochlear implantation with a view to preserving residual hearing...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29130161/detection-of-2-alkyl-4-quinolones-using-biosensors
#19
Matthew P Fletcher, Stephen P Diggle, Miguel Cámara, Paul Williams
2-Alkyl-4-quinolones (AQs) such as 2-heptyl-3-hydroxy-4-quinolone (PQS) and 2-heptyl-4-hydroxyquinoline (HHQ) are quorum-sensing signal molecules. Here we describe two methods for AQ detection and quantification that employ thin-layer chromatography (TLC) and microtiter plate assays in combination with a lux-based Pseudomonas aeruginosa AQ biosensor strain. For TLC detection, organic solvent extracts of bacterial cells or spent culture supernatants are chromatographed on TLC plates, which are then dried and overlaid with the AQ biosensor...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29128208/multi-institutional-evaluation-of-elective-nodal-irradiation-and-or-androgen-deprivation-therapy-with-postprostatectomy-salvage-radiotherapy-for-prostate-cancer
#20
Stephen J Ramey, Shree Agrawal, Matthew C Abramowitz, Drew Moghanaki, Thomas M Pisansky, Jason A Efstathiou, Jeff M Michalski, Daniel E Spratt, Jason W D Hearn, Bridget F Koontz, Stanley L Liauw, Alan Pollack, Mitchell S Anscher, Robert B Den, Kevin L Stephans, Anthony L Zietman, W Robert Lee, Andrew J Stephenson, Rahul D Tendulkar
BACKGROUND: Outcomes with postprostatectomy salvage radiation therapy (SRT) are not ideal. Little evidence exists regarding potential benefits of adding whole pelvic radiation therapy (WPRT) alone or in combination with androgen deprivation therapy (ADT). OBJECTIVE: To explore whether WPRT and/or ADT added to prostate bed radiation therapy (PBRT) improves freedom from biochemical failure (FFBF) or distant metastases (DM). DESIGN, SETTING, AND PARTICIPANTS: A database was compiled from 10 academic institutions of patients with postprostatectomy prostate-specific antigen (PSA) >0...
November 8, 2017: European Urology
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