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Feifei Cheng, Anzhou Ma, Guoqiang Zhuang, Rupert G Fray
In order to cope with pathogens, plants have evolved sophisticated mechanisms to sense pathogenic attacks and to induce defence responses. The N-acyl-homoserine lactone (AHL)-mediated quorum sensing in bacteria regulates diverse physiological processes including those involved in pathogenicity. In this work, we study the interactions between AHL-producing transgenic tobacco plants and Pseudomonas syringae pv. tabaci 11528 (P. syringae 11528). Both a reduced incidence of disease and decrease in the growth of P...
October 18, 2016: Molecular Plant Pathology
Selman Uluisik, Natalie H Chapman, Rebecca Smith, Mervin Poole, Gary Adams, Richard B Gillis, Tabot M D Besong, Judith Sheldon, Suzy Stiegelmeyer, Laura Perez, Nurul Samsulrizal, Duoduo Wang, Ian D Fisk, Ni Yang, Charles Baxter, Daniel Rickett, Rupert Fray, Barbara Blanco-Ulate, Ann L T Powell, Stephen E Harding, Jim Craigon, Jocelyn K C Rose, Eric A Fich, Li Sun, David S Domozych, Paul D Fraser, Gregory A Tucker, Don Grierson, Graham B Seymour
No abstract text is available yet for this article.
October 11, 2016: Nature Biotechnology
Connie Y Chang, Daniel I Rosenthal, Deborah M Mitchell, Atsuhiko Handa, Susan V Kattapuram, Ambrose J Huang
Metabolic bone diseases are a diverse group of diseases that result in abnormalities of (a) bone mass, (b) structure mineral homeostasis, (c) bone turnover, or (d) growth. Osteoporosis, the most common metabolic bone disease, results in generalized loss of bone mass and deterioration in the bone microarchitecture. Impaired chondrocyte development and failure to mineralize growth plate cartilage in rickets lead to widened growth plates and frayed metaphyses at sites of greatest growth. Osteomalacia is the result of impaired mineralization of newly formed osteoid, which leads to characteristic Looser zones...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Sue Hignett, Alexandra Lang, Laura Pickup, Christine Ives, Mike Fray, Celine McKeown, Sarah Tapley, Matthew Woodward, Paul Bowie
What prevents the delivery of effective, high quality, and safe healthcare in the National Health Service (NHS) in England? This paper presents 760 challenges which 330 NHS staff reported as preventing the delivery of effective, high quality and safe care. Some problems have been known for over 25 years (staff shortages, finance and patient complexity) but other challenges raise questions about the commitment of the NHS to patient and staff safety. For example Organisational Culture leading to 'stifling bureaucracy', 'odds stacked against smooth […] working' and Workload resulting in 'firefighting daily' and 'perpetual crisis mode'...
October 7, 2016: Ergonomics
Anita Chudecka-Głaz, Joanna Szczeblińska, Aneta Cymbaluk-Płoska, Joachim Kohn, Miroslawa El Fray
New poly(ester-amide) copolymers modified with polyethers were developed for carboplatin encapsulation. These new copolymers contain hydrophobic blocks made of tyrosine derivative and dimer fatty acid, and poly(ethylene glycol) (PEG) as hydrophilic blocks. Short term hydrolytic degradation revealed high water absorption, slight increase of pH of simulated body fluid and change of sample shape, which indicated the erosive mechanism of polymers degradation. Poly(ester-amide)-PEG copolymers were used for microspheres preparation and carboplatin encapsulation...
October 5, 2016: Journal of Microencapsulation
Jonathan Oberlander, David K Jones, Steven Spivack, Phillip M Singer
The Children's Health Insurance Program (CHIP) is a success story. CHIP has contributed greatly to ensuring affordable insurance and access to medical services for millions of children. The 2015 two-year extension of CHIP funding appeared to confirm its longstanding status as a bipartisan program. Yet that appearance obscures important changes in CHIP politics. In recent years, there have been calls to end the program, and its bipartisan coalition has frayed. In this article we analyze CHIP's funding extension, explore its shifting political environment, and discuss the implications for the program's future...
October 1, 2016: Health Affairs
Bee Lynn Chew, Ian D Fisk, Rupert Fray, Gregory A Tucker, Zsuzsanna Bodi, Alison Ferguson, Wei Xia, Graham B Seymour
This study highlights the changes in umami-related nucleotide and glutamate levels when the AMP deaminase gene was elevated in transgenic tomato. Taste is perceived as one of a combination of five sensations, sweet, sour, bitter, salty, and umami. The umami taste is best known as a savoury sensation and plays a central role in food flavour, palatability, and eating satisfaction. Umami flavour can be imparted by the presence of glutamate and is greatly enhanced by the addition of ribonucleotides, such as inosine monophosphate (IMP) and guanosine monophosphate (GMP)...
September 23, 2016: Plant Cell Reports
George M Sammonds, Mike Fray, Neil J Mansfield
Discomfort in vehicle seats is a multifactorial problem with large increases in discomfort occurring during extended duration driving. Due to the nature of driver discomfort, previous research has found it difficult to accurately quantify long term driver discomfort via the use of objective measures. This paper reports a laboratory study that investigates a novel objective measure of long term driver discomfort and its correlation with subjective discomfort ratings. Analysis of driver's seat fidgets and movements was conducted over the duration of a 140 min drive on a driving simulator in addition to collecting subjective ratings of discomfort...
January 2017: Applied Ergonomics
Nicolas Fray, Anaïs Bardyn, Hervé Cottin, Kathrin Altwegg, Donia Baklouti, Christelle Briois, Luigi Colangeli, Cécile Engrand, Henning Fischer, Albrecht Glasmachers, Eberhard Grün, Gerhard Haerendel, Hartmut Henkel, Herwig Höfner, Klaus Hornung, Elmar K Jessberger, Andreas Koch, Harald Krüger, Yves Langevin, Harry Lehto, Kirsi Lehto, Léna Le Roy, Sihane Merouane, Paola Modica, François-Régis Orthous-Daunay, John Paquette, François Raulin, Jouni Rynö, Rita Schulz, Johan Silén, Sandra Siljeström, Wolfgang Steiger, Oliver Stenzel, Thomas Stephan, Laurent Thirkell, Roger Thomas, Klaus Torkar, Kurt Varmuza, Karl-Peter Wanczek, Boris Zaprudin, Jochen Kissel, Martin Hilchenbach
The presence of solid carbonaceous matter in cometary dust was established by the detection of elements such as carbon, hydrogen, oxygen and nitrogen in particles from comet 1P/Halley. Such matter is generally thought to have originated in the interstellar medium, but it might have formed in the solar nebula-the cloud of gas and dust that was left over after the Sun formed. This solid carbonaceous material cannot be observed from Earth, so it has eluded unambiguous characterization. Many gaseous organic molecules, however, have been observed; they come mostly from the sublimation of ices at the surface or in the subsurface of cometary nuclei...
September 7, 2016: Nature
Carol E Golin, Kevin Knight, Jessica Carda-Auten, Michele Gould, Jennifer Groves, Becky L White, Steve Bradley-Bull, Kemi Amola, Niasha Fray, David L Rosen, Michael J Mugavaro, Brian W Pence, Patrick M Flynn, David Wohl
BACKGROUND: Policy-makers promote a seek, test, treat and retain (STTR) strategy to expand HIV testing, support linkage and engagement in care, and enhance the continuous use of antiretroviral therapy for those HIV-infected. This HIV prevention strategy is particularly appropriate in correctional settings where HIV screening and treatment are routinely available yet many HIV-infected individuals have difficulty sustaining sufficient linkage and engagement in care, disease management, and viral suppression after prison release...
2016: BMC Public Health
Shane T Finn, Janet E Macdonald
Petaled MoS2 electrodes grown hydrothermally from Mo foils are found to have an 800 nm, intermediate, MoSxOy layer. Similar petaled MoS2 films without this intermediate layer are grown on Au. X-ray photoelectron and Raman spectroscopies and transmission electron microscopy indicate the resulting petaled multilayer MoS2 films are frayed and exhibit single-layer, 1T-MoS2 behavior at the edges. We compare the electrocatalytic hydrogen evolution reaction activity via linear sweep voltammetry with Tafel analysis as well as the impedance properties of the electrodes...
September 28, 2016: ACS Applied Materials & Interfaces
Julieta E Barroeta, Elliott Lhospital, Eugene Smith, Emily M Ko
We report the case of a 62-year-old woman who underwent laparoscopic hysterectomy, bilateral salpingo-oophorectomy, and lymph node dissection for endometrial endometrioid carcinoma FIGO grade 1. Cytologic examination of the pelvic washing specimen showed an acellular matrix with frayed edges and cracking artifact. Upon investigation, it became apparent that this could represent hemostatic matrix Floseal(R) that had been used intraoperatively at the lymphadenectomy site. Laboratory replication of the cytologic findings with a Floseal(R) sample confirmed it...
August 18, 2016: Diagnostic Cytopathology
Paul J Sanstead, Paul Stevenson, Andrei Tokmakoff
Despite its important role in biology and nanotechnology, many questions remain regarding the molecular mechanism and dynamics by which oligonucleotides recognize and hybridize to their complementary sequence. The thermodynamics and kinetics of DNA oligonucleotide hybridization and dehybridization are often assumed to involve an all-or-nothing two-state dissociation pathway, but deviations from this behavior can be considerable even for short sequences. We introduce a new strategy to characterize the base-pair-specific thermal dissociation mechanism of DNA oligonucleotides through steady-state and time-resolved infrared spectroscopy...
September 14, 2016: Journal of the American Chemical Society
John M Louis, James L Baber, Rodolfo Ghirlando, Annie Aniana, Ad Bax, Julien Roche
The transitioning of the ectodomain of gp41 from a pre-hairpin to a six-helix bundle conformation is a crucial aspect of virus-cell fusion. To gain insight into the intermediary steps of the fusion process we have studied the pH and dodecyl phosphocholine (DPC) micelle dependent trimer association of gp41 by systematic deletion analysis of an optimized construct termed 17-172 (residues 528 to 683 of Env) that spans the fusion peptide proximal region (FPPR) to the membrane proximal external region (MPER) of gp41, by sedimentation velocity and double electron-electron resonance (DEER) EPR spectroscopy...
2016: PloS One
Stell Patadji, Joshua Pantanowitz, Natalie M Perlov, Sara E Monaco
INTRODUCTION: Arborizing stromal meshwork fragments (ASMFs) have been proposed as a useful clue to differentiate mucin associated with mucinous adenocarcinoma from contaminating mucus during endobronchial ultrasound-guided transbronchial needle aspiration. Our aim was to retrospectively review cytology cases with mucinous material to determine the utility of ASMFs in diagnosing mucinous tumors. MATERIAL AND METHODS: Diff-Quik stained smears from archival cytology cases (N = 40) were reviewed, including adenocarcinomas with mucinous features, cystic mucinous neoplasms, and control cases with mucin contamination...
October 2016: Diagnostic Cytopathology
Gemma F Codner, Loic Lindner, Adam Caulder, Marie Wattenhofer-Donzé, Adam Radage, Annelyse Mertz, Benjamin Eisenmann, Joffrey Mianné, Edward P Evans, Colin V Beechey, Martin D Fray, Marie-Christine Birling, Yann Hérault, Guillaume Pavlovic, Lydia Teboul
BACKGROUND: Karyotypic integrity is essential for the successful germline transmission of alleles mutated in embryonic stem (ES) cells. Classical methods for the identification of aneuploidy involve cytological analyses that are both time consuming and require rare expertise to identify mouse chromosomes. RESULTS: As part of the International Mouse Phenotyping Consortium, we gathered data from over 1,500 ES cell clones and found that the germline transmission (GLT) efficiency of clones is compromised when over 50 % of cells harbour chromosome number abnormalities...
2016: BMC Cell Biology
Selman Uluisik, Natalie H Chapman, Rebecca Smith, Mervin Poole, Gary Adams, Richard B Gillis, Tabot M D Besong, Judith Sheldon, Suzy Stiegelmeyer, Laura Perez, Nurul Samsulrizal, Duoduo Wang, Ian D Fisk, Ni Yang, Charles Baxter, Daniel Rickett, Rupert Fray, Barbara Blanco-Ulate, Ann L T Powell, Stephen E Harding, Jim Craigon, Jocelyn K C Rose, Eric A Fich, Li Sun, David S Domozych, Paul D Fraser, Gregory A Tucker, Don Grierson, Graham B Seymour
Controlling the rate of softening to extend shelf life was a key target for researchers engineering genetically modified (GM) tomatoes in the 1990s, but only modest improvements were achieved. Hybrids grown nowadays contain 'non-ripening mutations' that slow ripening and improve shelf life, but adversely affect flavor and color. We report substantial, targeted control of tomato softening, without affecting other aspects of ripening, by silencing a gene encoding a pectate lyase.
September 2016: Nature Biotechnology
Susumu Tokunaga, Yoshihiro Abe
Collateral ligaments are difficult to repair due to large amount of fraying in detached ligaments and attenuated stumps that may not provide enough strength after the repair. Although strong locking sutures are used to repair the ligament with proper tension, these damages can cause pull-out failure or relaxation of the repaired ligaments even from undersized load that may extend postoperative splinting or casting time. Furthermore, current suture techniques can repair varus or valgus instability of the elbow and radial or ulnar instability of the fingers, but these techniques do not offer rotatory stability of these areas...
June 2016: J Hand Surg Asian Pac Vol
Seth A Cohen, Howard B Goldman
Perforation of a viscus with a mesh product either during or subsequent to pelvic floor reconstruction can be associated with devastating outcomes. If surgeons are going to place mesh, they also need to be familiar with symptoms concerning for perforation. The index of suspicion should always be present, as these patients can present years after initial mesh placement. The best opportunity for intervention in these serious complications is the first intervention. As bits of mesh are chipped away during attempted interventions, residual mesh fragments become disjointed, frayed, and scarred further, making their removal even more challenging, in addition to traumatizing likely already weakened tissues...
September 2016: Current Urology Reports
Toru H Okabe, Olga Kuzmina, John M Slattery, Cairong Jiang, Tim Sudmeier, Linpo Yu, Han Wang, Wei Xiao, Liang Xu, Xiangling Yue, Yiyang Kong, Andrew Doherty, Geir Martin Haarberg, Shuqiang Jiao, Qian Xu, Hongmin Zhu, Dihua Wang, Paul Madden, Daniel Cooper, Kathie McGregor, Chaohui Wei, Binjie Hu, Andrew Mount, John Irvine, Ali Kamali, Babak Khalaghi, Xianbo Jin, Yingjun Liu, George Zheng Chen, Xingli Zou, Gang Chen, Ye Liu, Majd Eshtaya, Derek Fray, Yating Yuan
No abstract text is available yet for this article.
August 15, 2016: Faraday Discussions
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