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https://www.readbyqxmd.com/read/28202046/highly-predictive-snp-markers-for-efficient-selection-of-the-wheat-leaf-rust-resistance-gene-lr16
#1
Mulualem T Kassa, Frank M You, Colin W Hiebert, Curtis J Pozniak, Pierre R Fobert, Andrew G Sharpe, James G Menzies, D Gavin Humphreys, Nicole Rezac Harrison, John P Fellers, Brent D McCallum, Curt A McCartney
BACKGROUND: Lr16 is a widely deployed leaf rust resistance gene in wheat (Triticum aestivum L.) that is highly effective against the North American Puccinia triticina population when pyramided with the gene Lr34. Lr16 is a seedling leaf rust resistance gene conditioning an incompatible interaction with a distinct necrotic ring surrounding the uredinium. Lr16 was previously mapped to the telomeric region of the short arm of wheat chromosome 2B. The goals of this study were to develop numerous single nucleotide polymorphism (SNP) markers for the Lr16 region and identify diagnostic gene-specific SNP marker assays for marker-assisted selection (MAS)...
February 15, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28188692/bioreactor-scale-up-and-protein-product-quality-characterization-of-piggybac-transposon-derived-cho-pools
#2
Yashas Rajendra, Sowmya Balasubramanian, Robert B Peery, James R Swartling, Neil A McCracken, Dawn L Norris, Christopher C Frye, Gavin C Barnard
Chinese hamster ovary (CHO) cells remain the most popular host for the production of biopharmaceutical drugs, particularly monoclonal antibodies (mAbs), bispecific antibodies and Fc-fusion proteins. Creating and characterizing the stable CHO clonally-derived cell lines (CDCLs) needed to manufacture these therapeutic proteins is a lengthy and laborious process. Therefore, CHO pools have increasingly been used to rapidly produce protein to support and enable preclinical drug development. We recently described the generation of CHO pools yielding mAb titers as high as 7...
February 11, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28186488/control-of-immune-ligands-by-members-of-a-cytomegalovirus-gene-expansion-suppresses-natural-killer-cell-activation
#3
Ceri Alan Fielding, Michael P Weekes, Luis V Nobre, Eva Ruckova, Gavin S Wilkie, Joao A Paulo, Chiwen Chang, Nicolás M Suárez, James A Davies, Robin Antrobus, Richard J Stanton, Rebecca J Aicheler, Hester Nichols, Borek Vojtesek, John Trowsdale, Andrew J Davison, Steven P Gygi, Peter Tomasec, Paul J Lehner, Gavin Wg Wilkinson
The human cytomegalovirus (HCMV) US12 family consists of ten sequentially arranged genes (US12-21) with poorly characterized function. We now identify novel NK cell evasion functions for four members: US12, US14, US18 and US20. Using a systematic multiplexed proteomics approach to quantify ~1,300 cell surface and ~7,200 whole cell proteins, we demonstrate that the US12 family selectively targets plasma membrane proteins and plays key roles in regulating NK ligands, adhesion molecules and cytokine receptors...
February 10, 2017: ELife
https://www.readbyqxmd.com/read/28151720/biomarker-and-tumor-responses-of-oral-cavity-squamous-cell-carcinoma-to-trametinib-a-phase-ii-neoadjuvant-window-of-opportunity-clinical-trial
#4
Ravindra Uppaluri, Ashley E Winkler, Tianxiang Lin, Jonathan H Law, Bruce H Haughey, Brian Nussenbaum, Randal C Paniello, Jason T Rich, Jason A Diaz, Loren S Michel, Tanya Wildes, Gavin P Dunn, Paul Zolkind, Dorina Kallogjeri, Jay F Piccirillo, Farrokh Dehdashti, Barry A Siegel, Rebecca D Chernock, James S Lewis, Douglas R Adkins
PURPOSE: Ras/MEK/ERK pathway activation is common in oral cavity squamous cell carcinoma (OCSCC). We performed a neoadjuvant (pre-operative) trial to determine biomarker and tumor response of OCSCC to MEK inhibition with trametinib. EXPERIMENTAL DESIGN: Patients with Stage II-IV OCSCC received trametinib (2 mg/day, minimum 7 days) prior to surgery. Primary tumor specimens were obtained before and after trametinib to evaluate immunohistochemistry staining for p-ERK½ and CD44, the primary endpoint...
November 9, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28149400/the-effect-of-different-decline-angles-on-the-biomechanics-of-double-limb-squats-and-the-implications-to-clinical-and-training-practice
#5
Jim Richards, James Selfe, Jonathan Sinclair, Karen May, Gavin Thomas
Bilateral decline squatting has been well documented as a rehabilitation exercise, however, little information exists on the optimum angle of decline. The aim of this study was to determine the ankle and knee angle, moments, the patellofemoral joint load, patellar tendon load and associated muscle activity while performing a double limb squat at different decline angles and the implications to rehabilitation. Eighteen healthy subjects performed double limb squats at 6 angles of declination: 0, 5, 10, 15, 20 and 25 degrees...
September 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149212/thumb-metacarpal-subsidence-after-partial-trapeziectomy-with-capsular-interposition-arthroplasty-a-biomechanical-study
#6
Christina Salas, Deana M Mercer, Gavin O'Mahony, James Love, Dukens LaBaze, Moheb S Moneim
Background: In a cadaveric model, we evaluated thumb metacarpal subsidence, indicated by a decreased metacarpal-to-scaphoid distance, after 2 surgical procedures used to treat thumb carpometacarpal (CMC) osteoarthritis (OA): partial trapeziectomy with capsular interposition (PTCI), which involves removal of 2 mm of both the distal trapezium and base of the metacarpal; and total trapeziectomy with capsular interposition (TTCI). Methods: Nine matched pairs of cadaveric hands were randomly assigned to undergo either PTCI or TTCI...
December 2016: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28129780/manubrium-limited-ministernotomy-versus-conventional-sternotomy-for-aortic-valve-replacement-mavric-study-protocol-for-a-randomised-controlled-trial
#7
Enoch Akowuah, Andrew T Goodwin, W Andrew Owens, Helen C Hancock, Rebecca Maier, Adetayo Kasim, Adrian Mellor, Khalid Khan, Gavin Murphy, James Mason
BACKGROUND: Aortic valve replacement is one of the most common cardiac surgical procedures performed worldwide. Conventional aortic valve replacement surgery is performed via a median sternotomy; the sternum is divided completely from the sternal notch to the xiphisternum. Minimally invasive aortic valve replacement, using a new technique called manubrium-limited ministernotomy, divides only the manubrium from the sternal notch to 1 cm below the manubrio-sternal junction. More than one third of patients undergoing conventional sternotomy develop clinically significant bleeding requiring post-operative red blood cell transfusion...
January 28, 2017: Trials
https://www.readbyqxmd.com/read/28119371/analysis-of-genes-involved-in-glycogen-degradation-in-escherichia-coli
#8
Lindi Strydom, Jonathan Jewell, Michael A Meier, Gavin M George, Barbara Pfister, Samuel Zeeman, Jens Kossmann, James R Lloyd
E. coli accumulate or degrade glycogen depending on environmental carbon supply. Glycogen phosphorylase (GlgP) and glycogen debranching enzyme (GlgX) are known to act on the glycogen polymer, while maltodextrin phosphorylase (MalP) is thought to remove maltodextrins released by GlgX. To examine the roles of these enzymes in more detail, single, double and triple mutants lacking all their activities were produced. GlgX and GlgP were shown to act directly on the glycogen polymer, while MalP most likely catabolised soluble malto-oligosaccharides...
January 24, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28118309/maturation-related-differences-in-adaptations-to-resistance-training-in-young-male-swimmers
#9
Jason Moran, Gavin R H Sandercock, Rodrigo Ramírez-Campillo, John-James Wooller, Spiros Logothetis, Patrick P J M Schoenmakers, Dave A Parry
This study examined the effects of resistance training on muscular strength and jump performance in young male swimmers. It was hypothesized that adaptations would be of a lower magnitude in less mature (Pre-peak height velocity [PHV]) than in more mature (Post-PHV) subjects. Fourteen Pre- (-1.8 ± 1.0 years) and 8 Post-PHV (1.6 ± 0.5 years) swimmers undertook a 30 minute, twice-weekly resistance training program for 8 weeks. They were compared with matched control groups (Pre-PHV: -2.0 ± 1.1, n=15; Post-PHV: 1...
January 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28118018/non-isocyanate-polyurethane-soft-nanoparticles-obtained-by-surfactant-assisted-interfacial-polymerization
#10
Amaury Bossion, Gavin O Jones, Daniel Taton, David Mecerreyes, James L Hedrick, Zhan Yuin Ong, Yi Yan Yang, Haritz Sardón
Polyurethanes (PUs) are considered ideal candidates for drug delivery applications due to their easy synthesis, excellent mechanical properties and biodegradability. Unfortunately, methods for preparing well-defined PU nanoparticles required miniemulsion polymerization techniques with a non-trivial control of the polymerization conditions due to the inherent incompatibility of isocyanate-containing monomers and water. In this work, we report the preparation of soft PU nanoparticles in a one-pot process using interfacial polymerization that employs a non-isocyanate polymerization route that minimizes side reactions with water...
January 24, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28117441/plasmodium-malariae-and-p-ovale-genomes-provide-insights-into-malaria-parasite-evolution
#11
Gavin G Rutledge, Ulrike Böhme, Mandy Sanders, Adam J Reid, James A Cotton, Oumou Maiga-Ascofare, Abdoulaye A Djimdé, Tobias O Apinjoh, Lucas Amenga-Etego, Magnus Manske, John W Barnwell, François Renaud, Benjamin Ollomo, Franck Prugnolle, Nicholas M Anstey, Sarah Auburn, Ric N Price, James S McCarthy, Dominic P Kwiatkowski, Chris I Newbold, Matthew Berriman, Thomas D Otto
Elucidation of the evolutionary history and interrelatedness of Plasmodium species that infect humans has been hampered by a lack of genetic information for three human-infective species: P. malariae and two P. ovale species (P. o. curtisi and P. o. wallikeri). These species are prevalent across most regions in which malaria is endemic and are often undetectable by light microscopy, rendering their study in human populations difficult. The exact evolutionary relationship of these species to the other human-infective species has been contested...
January 25, 2017: Nature
https://www.readbyqxmd.com/read/28081547/diagnosis-of-pancreaticobiliary-malignancy-by-detection-of-minichromosome-maintenance-protein-5-in-biliary-brush-cytology
#12
Margaret G Keane, Matthew T Huggett, Michael H Chapman, Gavin J Johnson, George J Webster, Douglas Thorburn, James Mackay, Stephen P Pereira
BACKGROUND: Biliary brush cytology is the standard method of evaluating biliary strictures, but is insensitive at detecting malignancy. In pancreaticobiliary cancer minichromosome maintenance replication proteins (MCM 2-7) are dysregulated in the biliary epithelium and MCM5 levels are elevated in bile samples. This study aimed to validate an immunocolorimetric ELISA assay for MCM5 as a pancreaticobiliary cancer biomarker in biliary brush samples. METHODS: Biliary brush specimens were collected prospectively at ERCP from patients with a biliary stricture...
January 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28013231/neurexins-1-3-each-have-a-distinct-pattern-of-expression-in-the-early-developing-human-cerebral-cortex
#13
Lauren F Harkin, Susan J Lindsay, Yaobo Xu, Ayman Alzu'bi, Alexandra Ferrara, Emily A Gullon, Owen G James, Gavin J Clowry
Neurexins (NRXNs) are presynaptic terminal proteins and candidate neurodevelopmental disorder susceptibility genes; mutations presumably upset synaptic stabilization and function. However, analysis of human cortical tissue samples by RNAseq and quantitative real-time PCR at 8-12 postconceptional weeks, prior to extensive synapse formation, showed expression of all three NRXNs as well as several potential binding partners. However, the levels of expression were not identical; NRXN1 increased with age and NRXN2 levels were consistently higher than for NRXN3 Immunohistochemistry for each NRXN also revealed different expression patterns at this stage of development...
December 23, 2016: Cerebral Cortex
https://www.readbyqxmd.com/read/28013211/effect-of-anti-tnf-and-conventional-synthetic-disease-modifying-anti-rheumatic-drug-treatment-on-work-disability-and-clinical-outcome-in-a-multicentre-observational-cohort-study-of-psoriatic-arthritis
#14
William Tillett, Gavin Shaddick, Amelia Jobling, Ayman Askari, Annie Cooper, Paul Creamer, Gavin Clunie, Philip S Helliwell, Jana James, Lesley Kay, Eleanor Korendowych, Suzanne Lane, Jonathon Packham, Ragai Shaban, Matthew L Thomas, Lyn Williamson, Neil McHugh
OBJECTIVE: To determine the effect of medical treatment on work disability in patients with active PsA in a real-world setting. METHODS: Four hundred patients with active PsA commencing or switching to anti-TNF or conventional synthetic DMARD (csDMARD) were recruited to a multicentre UK prospective observational cohort study. Work disability was measured using the work productivity and activity-specific health problem instrument and peripheral joint activity was measured with the disease activity in PsA composite measure...
December 24, 2016: Rheumatology
https://www.readbyqxmd.com/read/27956294/nonlinear-optical-corneal-collagen-crosslinking-of-ex%C3%A2-vivo-rabbit-eyes
#15
Samantha M Bradford, Donald J Brown, Tibor Juhasz, Eric Mikula, James V Jester
PURPOSE: To determine whether riboflavin-induced collagen crosslinking (CXL) could be precisely achieved in the corneal stroma of ex vivo rabbit eyes using nonlinear optical excitation with a low numerical aperture lens and enlarged focal volume. SETTING: Gavin Herbert Eye Institute, University of California Irvine, Irvine, California, USA. DESIGN: Experimental study. METHODS: The corneal epithelium was removed and the corneas were soaked in 0...
November 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27927667/life-after-prostate-cancer-diagnosis-protocol-for-a-uk-wide-patient-reported-outcomes-study
#16
Amy Downing, Penny Wright, Richard Wagland, Eila Watson, Therese Kearney, Rebecca Mottram, Majorie Allen, Victoria Cairnduff, Oonagh McSorley, Hugh Butcher, Luke Hounsome, Conan Donnelly, Peter Selby, Paul Kind, William Cross, James W H Catto, Dyfed Huws, David H Brewster, Emma McNair, Lauren Matheson, Carol Rivas, Johana Nayoan, Mike Horton, Jessica Corner, Julia Verne, Anna Gavin, Adam W Glaser
BACKGROUND: Prostate cancer and its treatment may impact physically, psychologically and socially; affecting the health-related quality of life of men and their partners/spouses. The Life After Prostate Cancer Diagnosis (LAPCD) study is a UK-wide patient-reported outcomes study which will generate information to improve the health and well-being of men with prostate cancer. METHODS AND ANALYSIS: Postal surveys will be sent to prostate cancer survivors (18-42 months postdiagnosis) in all 4 UK countries (n=∼70 000)...
December 7, 2016: BMJ Open
https://www.readbyqxmd.com/read/27905469/selection-for-predation-not-female-fecundity-explains-sexual-size-dimorphism-in-the-orchid-mantises
#17
Gavin J Svenson, Sydney K Brannoch, Henrique M Rodrigues, James C O'Hanlon, Frank Wieland
Here we reconstruct the evolutionary shift towards floral simulation in orchid mantises and suggest female predatory selection as the likely driving force behind the development of extreme sexual size dimorphism. Through analysis of body size data and phylogenetic modelling of trait evolution, we recovered an ancestral shift towards sexual dimorphisms in both size and appearance in a lineage of flower-associated praying mantises. Sedentary female flower mantises dramatically increased in size prior to a transition from camouflaged, ambush predation to a floral simulation strategy, gaining access to, and visually attracting, a novel resource: large pollinating insects...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904748/patterns-of-medication-use-and-factors-associated-with-antibiotic-use-among-adult-fever-patients-at-singapore-primary-care-clinics
#18
Zaw Myo Tun, Mahesh Moorthy, Martin Linster, Yvonne C F Su, Richard James Coker, Eng Eong Ooi, Jenny Guek-Hong Low, Gavin J D Smith, Clarence C Tam
BACKGROUND: Antimicrobial resistance is a public health problem of global importance. In Singapore, much focus has been given to antibiotic usage patterns in hospital settings. Data on antibiotic use in primary care is lacking. We describe antibiotic usage patterns and assess factors contributing to antibiotic usage among adults presenting with acute febrile illness (AFI) in primary care settings in Singapore. METHODS: We analyzed data from the Early Dengue infection and outcome study...
2016: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/27897130/recommendations-for-potassium-titanyl-phosphate-laser-in-the-treatment-of-cholesteatoma
#19
REVIEW
Gavin John le Nobel, Adrian Lewis James
Potassium-titanyl-phosphage (KTP) lasers possess many characteristics suitable for otologic surgery. The objective of this report is to provide recommendations on the use of KTP laser for cholesteatoma surgery based on a narrative review of currently available evidence. PubMed and the Cochrane Review of randomized control trials were searched for relevant publications on efficacy and adverse effects and relevant articles appraised by the authors using Oxford Centre for Evidence-based Medicine criteria for recommendations...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27889058/mutations-in-reep6-cause-autosomal-recessive-retinitis-pigmentosa
#20
Gavin Arno, Smriti A Agrawal, Aiden Eblimit, James Bellingham, Mingchu Xu, Feng Wang, Christina Chakarova, David A Parfitt, Amelia Lane, Thomas Burgoyne, Sarah Hull, Keren J Carss, Alessia Fiorentino, Matthew J Hayes, Peter M Munro, Ralph Nicols, Nikolas Pontikos, Graham E Holder, Chinwe Asomugha, F Lucy Raymond, Anthony T Moore, Vincent Plagnol, Michel Michaelides, Alison J Hardcastle, Yumei Li, Catherine Cukras, Andrew R Webster, Michael E Cheetham, Rui Chen
Retinitis pigmentosa (RP) is the most frequent form of inherited retinal dystrophy. RP is genetically heterogeneous and the genes identified to date encode proteins involved in a wide range of functional pathways, including photoreceptor development, phototransduction, the retinoid cycle, cilia, and outer segment development. Here we report the identification of biallelic mutations in Receptor Expression Enhancer Protein 6 (REEP6) in seven individuals with autosomal-recessive RP from five unrelated families...
December 1, 2016: American Journal of Human Genetics
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