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https://www.readbyqxmd.com/read/28110274/c4-photosynthesis-50-years-of-discovery-and-innovation
#1
EDITORIAL
Susanne von Caemmerer, Oula Ghannoum, Robert T Furbank
It is now over half a century since the biochemical characterization of the C4 photosynthetic pathway, and this special issue highlights the sheer breadth of current knowledge. New genomic and transcriptomic information shows that multi-level regulation of gene expression is required for the pathway to function, yet we know it to be one of the most dynamic examples of convergent evolution. Now, a focus on the molecular transition from C3-C4 intermediates, together with improved mathematical models, experimental tools and transformation systems, holds great promise for improving C4 photosynthesis in crops...
January 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28110067/poly-glycerol-sebacate-elastomer-supports-bone-regeneration-by-its-mechanical-properties-being-closer-to-osteoid-tissue-rather-than-to-mature-bone
#2
S H Zaky, K W Lee, J Gao, A Jensen, K Verdelis, Y Wang, A J Almarza, C Sfeir
: Mechanical load influences bone structure and mass. Arguing the importance of load-transduction, we investigated the mechanisms inducing bone formation using an elastomeric substrate. We characterized Poly (glycerol sebacate) (PGS) in-vitro for its mechanical properties, compatibility with osteoprogenitor cells regarding adhesion, proliferation, differentiation under compression versus static cultures and in-vivo for the regeneration of a rabbit ulna critical size defect. The load-transducing properties of PGS were compared in-vitro to a stiffer poly lactic-co- glycolic-acid (PLA/PGA) scaffold of similar porosity and interconnectivity...
January 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28109891/redox-regulation-of-electrophilic-signaling-by-reactive-persulfides-in-cardiac-cells
#3
REVIEW
Motohiro Nishida, Akiyuki Nishimura, Tetsuro Matsunaga, Hozumi Motohashi, Shingo Kasamatsu, Takaaki Akaike
Maintaining a redox balance by means of precisely controlled systems that regulate production, and elimination, and metabolism of electrophilic substances (electrophiles) is essential for normal cardiovascular function. Electrophilic signaling is mainly regulated by endogenous electrophiles that are generated from reactive oxygen species, nitric oxide, and the derivative reactive species of nitric oxide during stress responses, as well as by exogenous electrophiles including compounds in foods and environmental pollutants...
January 18, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28109347/how-is-physician-work-valued
#4
Jeffrey P Jacobs, Stephen J Lahey, Francis C Nichols, James M Levett, George Gilbert Johnston, Richard K Freeman, James D St Louis, Julie Painter, Courtney Yohe, Cameron D Wright, Kirk R Kanter, John E Mayer, Keith S Naunheim, Jeffrey B Rich, Joseph E Bavaria
Strategies to value physician work continue to evolve. The Society of Thoracic Surgeons and The Society of Thoracic Surgeons National Database have an increasingly important role in this evolution. An understanding of the Current Procedural Terminology (CPT) system (American Medical Association [AMA], Chicago, IL) and the Relative Value Scale Update Committee (RUC) is necessary to comprehend how physician work is valued. In 1965, with the dawn of increasingly complex medical care, immense innovation, and the rollout of Medicare, the need for a common language describing medical services and procedures was recognized as being of critical importance...
February 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28108235/the-use-of-bacteriophages-to-biocontrol-oral-biofilms
#5
Szymon P Szafrański, Andreas Winkel, Meike Stiesch
Infections induced by oral biofilms include caries, as well as periodontal, and peri-implant disease, and may influence quality of life, systemic health, and expenditure. As bacterial biofilms are highly resistant and resilient to conventional antibacterial therapy, it has been difficult to combat these infections. An innovative alternative to the biocontrol of oral biofilms could be to use bacteriophages or phages, the viruses of bacteria, which are specific, non-toxic, self-proliferating, and can penetrate into biofilms...
January 17, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28108135/designing-autonomy-opportunities-for-new-wildness-in-the-anthropocene
#6
REVIEW
Bradley Cantrell, Laura J Martin, Erle C Ellis
Maintaining wild places involves increasingly intensive human interventions. Several recent projects use semi-automated mediating technologies to enact conservation and restoration actions, including re-seeding and invasive species eradication. Could a deep-learning system sustain the autonomy of nonhuman ecological processes at designated sites without direct human interventions? We explore here the prospects for automated curation of wild places, as well as the technical and ethical questions that such co-creation poses for ecologists, conservationists, and designers...
January 17, 2017: Trends in Ecology & Evolution
https://www.readbyqxmd.com/read/28108091/implementation-of-a-simple-innovative-system-for-postprescription-antibiotic-review-based-on-computerized-tools-with-shared-access
#7
F Bouchand, A Dinh, A L Roux, B Davido, H Michelon, M Lepainteur, B Legendre, F El Sayed, I Pierre, J Salomon, C Lawrence, C Perronne, M Villart, A-C Crémieux
BACKGROUND: Controlling antibiotic use in healthcare establishments limits their consumption and the emergence of bacterial resistance. AIM: To evaluate the efficiency of an innovative antibiotic stewardship strategy implemented over three years in a university hospital. METHODS: An antimicrobial multi-disciplinary team (AMT) [pharmacist, microbiologist and infectious disease specialist (IDS)] conducted a postprescription review. Specific coding of targeted antibiotics (including broad-spectrum β-lactams, glycopeptides, lipopeptides, fluoroquinolones and carbapenems) in the computerized physician order entry allowed recording of all new prescriptions...
November 26, 2016: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28108031/ifpa-meeting-2016-workshop-report-i-genomic-communication-bioinformatics-trophoblast-biology-and-transport-systems
#8
Christiane Albrecht, Julie C Baker, Cassidy Blundell, Shawn L Chavez, Lucia Carbone, Larry Chamley, Roberta L Hannibal, Nick Illsley, Peter Kurre, Louise C Laurent, Charles McKenzie, Diana Morales-Prieto, Priyadarshini Pantham, Alison Paquette, Katie Powell, Nathan Price, Balaji M Rao, Yoel Sadovsky, Carlos Salomon, Geetu Tuteja, Samantha Wilson, P F O'Tierney-Ginn
Workshops are an important part of the IFPA annual meeting as they allow for discussion of specialized topics. At IFPA meeting 2016 there were twelve themed workshops, four of which are summarized in this report. These workshops covered innovative technologies applied to new and traditional areas of placental research: 1) genomic communication; 2) bioinformatics; 3) trophoblast biology and pathology; 4) placental transport systems.
January 11, 2017: Placenta
https://www.readbyqxmd.com/read/28107482/a-circulating-microrna-signature-predicts-age-based-development-of-lymphoma
#9
Afshin Beheshti, Charles Vanderburg, J Tyson McDonald, Charusheila Ramkumar, Tatenda Kadungure, Hong Zhang, Ronald B Gartenhaus, Andrew M Evens
Extensive epidemiological data have demonstrated an exponential rise in the incidence of non-Hodgkin lymphoma (NHL) that is associated with increasing age. The molecular etiology of this remains largely unknown, which impacts the effectiveness of treatment for patients. We proposed that age-dependent circulating microRNA (miRNA) signatures in the host influence diffuse large B cell lymphoma (DLBCL) development. Our objective was to examine tumor development in an age-based DLBCL system using an inventive systems biology approach...
2017: PloS One
https://www.readbyqxmd.com/read/28106896/the-2016-bowman-lecture-conjunctival-curses-scarring-conjunctivitis-30-years-on
#10
J K Dart
This review is in two sections. The first section summarises 35 conditions, both common and infrequent, causing cicatrising conjunctivitis. Guidelines for making a diagnosis are given together with the use of diagnostic tests, including direct and indirect immunofluorescence, and their interpretation. The second section evaluates our knowledge of ocular mucous membrane pemphigoid, which is the commonest cause of cicatrizing conjunctivitis in most developed countries. The clinical characteristics, demographics, and clinical signs of the disease are described...
January 20, 2017: Eye
https://www.readbyqxmd.com/read/28106832/plaimos-a-remote-mobile-healthcare-platform-to-monitor-cardiovascular-and-respiratory-variables
#11
Ramses Miramontes, Raúl Aquino, Arturo Flores, Guillermo Rodríguez, Rafael Anguiano, Arturo Ríos, Arthur Edwards
The number of elderly and chronically ill patients has grown significantly over the past few decades as life expectancy has increased worldwide, leading to increased demands on the health care system and significantly taxing traditional health care practices. Consequently, there is an urgent need to use technology to innovate and more constantly and intensely monitor, report and analyze critical patient physiological parameters beyond conventional clinical settings in a more efficient and cost effective manner...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28105847/compact-ultrahigh-pressure-nanoflow-capillary-liquid-chromatograph
#12
Xiaofeng Zhao, Xiaofeng Xie, Sonika Sharma, Luke T Tolley, Alex Plistil, Hal E Barnett, Martin P Brisbin, Adam C Swensen, John C Price, Paul B Farnsworth, H Dennis Tolley, Stanley D Stearns, Milton L Lee
A compact ultrahigh-pressure nanoflow liquid chromatograph (LC) was developed with the purpose in mind of creating a portable system that could be easily moved to various testing locations or placed in close proximity to other instruments for optimal coupling, such as with mass spectrometry (MS). The system utilized innovative nanoflow pumps integrated with a very low volume stop-flow injector and mixing tee. The system weighed only 5.9 kg (13 lbs) or 4.5 kg (10 lbs) without a controller and could hold up to 1100 bar (16000 psi) of pressure...
January 3, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28105685/evolution-of-gas-permeable-membranes-for-extracorporeal-membrane-oxygenation
#13
REVIEW
Torin Yeager, Shuvo Roy
Gas permeable membranes are a vital component of extracorporeal membrane oxygenation systems. Over more than half a century, membrane fabrication and packaging technology have progressed to enable safer and longer duration use of respiratory life support. Current research efforts seek to improve membrane efficiency and hemocompatibility, with the aim of producing smaller and more robust systems for ambulatory use. This review explores past and present innovations in oxygenator technology, suggesting possible applications of state-of-the-art membrane fabrication methods to address shortcomings of earlier concepts...
January 19, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28105638/socioeconomic-disparities-financial-toxicity-and-opportunities-for-enhanced-system-efficiencies-for-patients-with-cancer
#14
Daniel E Abbott, Corrine L Voils, Deborah A Fisher, Caprice C Greenberg, Nasia Safdar
Cancer care continues to stress the US healthcare system with increases in life expectancy, cancer prevalence, and survivors' complex needs. These challenges are compounded by socioeconomic, racial, and cultural disparities that are associated with poor clinical outcomes. One innovative and resource-wise strategy to address this demand on the system is expanded use of telehealth. This paradigm has the potential to decrease healthcare and patient out-of-pocket costs and improve patient adherence to recommended treatment and/or surveillance...
January 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28104490/increasing-trainee-reporting-of-adverse-events-with-monthly-trainee-directed-review-of-adverse-events
#15
Alla Smith, Jonathan Hatoun, James Moses
OBJECTIVE: Underreporting of adverse events by physicians is a barrier to improving patient safety. In an effort to increase resident and medical student (hereafter "trainee") reporting of adverse events, trainees developed and led a monthly conference during which they reviewed adverse-event reports, identified system vulnerabilities and designed solutions to those vulnerabilities. METHODS: Monthly conferences over the 22-month study period were led by pediatric trainees, and attended by fellow trainees, departmental leadership, and members of the hospital's quality improvement team...
January 16, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28104469/culturally-grounded-diabetes-prevention-program-for-obese-latino-youth-rationale-design-and-methods
#16
A N Williams, Y P Konopken, C S Keller, F G Castro, K Arcoleo, E Barraza, D L Patrick, M L Olson, G Q Shaibi
BACKGROUND: Type 2 diabetes (T2D) disproportionately impacts Latino youth yet few diabetes prevention programs address this important source of health disparities. OBJECTIVES: To address this knowledge gap, we describe the rationale, design, and methodology underpinning a culturally-grounded T2D prevention program for obese Latino youth. The study aims to: 1) to test the efficacy of the intervention for reducing T2D risk, 2) explore potential mediators and moderators of changes in health behaviors and health outcomes and, 3) examine the incremental cost-effectiveness for reducing T2D risk...
January 16, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28103923/risk-adjustment-methods-for-all-payer-comparative-performance-reporting-in-vermont
#17
Karl Finison, MaryKate Mohlman, Craig Jones, Melanie Pinette, David Jorgenson, Amy Kinner, Tim Tremblay, Daniel Gottlieb
BACKGROUND: As the emphasis in health reform shifts to value-based payments, especially through multi-payer initiatives supported by the U.S. Center for Medicare & Medicaid Innovation, and with the increasing availability of statewide all-payer claims databases, the need for an all-payer, "whole-population" approach to facilitate the reporting of utilization, cost, and quality measures has grown. However, given the disparities between the different populations served by Medicare, Medicaid, and commercial payers, risk-adjustment methods for addressing these differences in a single measure have been a challenge...
January 19, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28103489/enhanced-degradation-of-organic-contaminants-in-water-by-peroxydisulfate-coupled-with-bisulfite
#18
Chengdu Qi, Xitao Liu, Yang Li, Chunye Lin, Jun Ma, Xiaowan Li, Huijuan Zhang
In this study, the bisulfite-peroxydisulfate system (S(IV)/PDS) widely used in polymerization was innovatively applied for organic contaminants degradation in water. The addition of S(IV) into PDS system remarkably enhanced the degradation efficiency of bisphenol A (BPA, a frequently detected endocrine disrupting chemical in the environments) from 17.0% to 84.7% within 360 min. The degradation efficiency of BPA in the S(IV)/PDS system followed pseudo-first-order kinetics, with rate constant values ranging from 0...
January 10, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28102397/highly-exposed-fe-n4-active-sites-in-porous-poly-iron-phthalocyanine-based-oxygen-reduction-electrocatalyst-with-ultrahigh-performance-for-air-cathode
#19
Ganesan Anandhababu, Syed Comail Abbas, Jiangquan Lv, Kui Ding, Qin Liu, Dickson D Babu, Yiyin Huang, Jiafang Xie, Maoxiang Wu, Yaobing Wang
Progress in the development of efficient electrocatalysts for oxygen reduction reactions is imperative for various energy systems such as metal-air batteries and fuel cells. In this paper, an innovative porous two-dimensional (2D) poly-iron-phthalocyanine (PFe-Pc) based oxygen reduction electrocatalyst created with a simple solid-state chemical reaction without pyrolysis is reported. In this strategy, silicon dioxide nanoparticles play a pivotal role in preserving the Fe-N4 structure during the polymerization process and thereby assist in the development of a porous structure...
January 19, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28102362/evaluation-of-region-selective-bilirubin-induced-brain-damage-as-a-basis-for-a-pharmacological-treatment
#20
Matteo Dal Ben, Cristina Bottin, Fabrizio Zanconati, Claudio Tiribelli, Silvia Gazzin
The neurologic manifestations of neonatal hyperbilirubinemia in the central nervous system (CNS) exhibit high variations in the severity and appearance of motor, auditory and cognitive symptoms, which is suggestive of a still unexplained selective topography of bilirubin-induced damage. By applying the organotypic brain culture (OBC: preserving in vitro the cellular complexity, connection and architecture of the in vivo brain) technique to study hyperbilirubinemia, we mapped the regional target of bilirubin-induced damage, demonstrated a multifactorial toxic action of bilirubin, and used this information to evaluate the efficacy of drugs applicable to newborns to protect the brain...
January 19, 2017: Scientific Reports
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