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https://www.readbyqxmd.com/read/28302377/stair-negotiation-as-a-rehabilitation-intervention-for-enhancing-recovery-following-total-hip-and-knee-replacement-surgery
#1
REVIEW
James P Gavin, Tikki Immins, Thomas Wainwright
BACKGROUND: Total hip replacement (THR) and total knee replacement (TKR) are common orthopaedic procedures. However, an optimal programme for post-operative rehabilitation has yet to be established. Stair negotiation is a challenging, habitual task, regularly used as a post-operative functional outcome measure; yet as a physical rehabilitation intervention it appears to be rarely used. AIM: The review purpose was to investigate the effectiveness of stair climbing as a rehabilitation intervention for THR and TKR patients...
October 20, 2016: International Journal of Orthopaedic and Trauma Nursing
https://www.readbyqxmd.com/read/28298518/evidence-for-ancient-origins-of-bowman-birk-inhibitors-from-selaginella-moellendorffii
#2
Amy Midori James, Achala S Jayasena, Jingjing Zhang, Oliver Berkowitz, David Secco, Gavin J Knott, James Whelan, Charles Bond, Joshua S Mylne
Bowman-Birk Inhibitors (BBIs) are a well-known family of plant protease inhibitors first described 70 years ago. BBIs are known only in the legume (Fabaceae) and cereal (Poaceae) families, but peptides that mimic their trypsin inhibitory loops exist in sunflowers and frogs. The disparate biosynthetic origins and distant phylogenetic distribution implies these loops evolved independently, but their structural similarity suggests a common ancestor. Targeted bioinformatic searches for the BBI inhibitory loop discovered highly divergent BBI like sequences in the seedless, vascular spikemoss Selaginella moellendorffii...
March 14, 2017: Plant Cell
https://www.readbyqxmd.com/read/28294639/physiological-changes-to-the-cardiovascular-system-at-high-altitude-and-its-effects-on-cardiovascular-disease
#3
Callum James Riley, Matthew Gavin
Riley, Callum James, and Matthew Gavin. Physiological changes to the cardiovascular system at high altitude and its effects on cardiovascular disease. High Alt Med Biol. 00:000-000, 2017.-The physiological changes to the cardiovascular system in response to the high altitude environment are well understood. More recently, we have begun to understand how these changes may affect and cause detriment to cardiovascular disease. In addition to this, the increasing availability of altitude simulation has dramatically improved our understanding of the physiology of high altitude...
March 15, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28288477/intraoperative-bleeding-and-the-risk-of-residual-cholesteatoma-a-multivariate-analysis
#4
Gavin J le Nobel, Sharon L Cushing, Blake C Papsin, Adrian L James
OBJECTIVE: Residual cholesteatoma most frequently occurs where visualization and surgical access are restricted by anatomic constraints. Other factors that compromise surgical field visualization might also increase rates of residual cholesteatoma. We evaluated whether impaired surgical field clarity from bleeding increases rates of residual cholesteatoma. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary care hospital. PATIENTS: Consecutive series of children having intact canal wall surgery for cholesteatoma...
April 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28285899/clinical-results-and-survivorship-of-the-genesis-ii-total-knee-arthroplasty-at-a-minimum-of-15-years
#5
Richard W McCalden, Gavin P Hart, Steven J MacDonald, Douglas D Naudie, James H Howard, Robert B Bourne
BACKGROUND: The purpose of this study was to examine the 15-year survivorship and long-term clinical outcomes of the GENESIS II total knee arthroplasty (TKA). METHODS: Patients who underwent TKA with the GENESIS II system between 1995 and 1999 were retrieved from our institutional database. We report a Kaplan-Meier survival analysis as well as Western Ontario and McMaster Universities Arthritis Index, the Short Form Health Survey-12 (SF-12), and the Knee Society Scores at a mean of 16 years...
February 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28261218/the-t-cell-response-to-the-contact-sensitizer-paraphenylenediamine-is-characterized-by-a-polyclonal-diverse-repertoire-of-antigen-specific-receptors
#6
Theres Oakes, Amy Lee Popple, Jason Williams, Katharine Best, James M Heather, Mazlina Ismail, Gavin Maxwell, Nichola Gellatly, Rebecca J Dearman, Ian Kimber, Benny Chain
Paraphenylenediamine (PPD) is a common component of hair dyes and black henna tattoos and can cause skin sensitization and allergic contact dermatitis (ACD). The cutaneous inflammatory reaction associated with ACD is driven by both CD4+ and CD8+ T cells. However, the characteristics of such responses with respect to clonal breadth and magnitude are poorly defined. In this study, we have characterized the in vitro recall response of peripheral blood T cells prepared from PPD-allergic individuals to a PPD-human serum albumin (HSA) conjugate (PPD-HSA)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28253385/association-of-steroid-5%C3%AE-reductase-type-3-congenital-disorder-of-glycosylation-with-early-onset-retinal-dystrophy
#7
Rachel L Taylor, Gavin Arno, James A Poulter, Kamron N Khan, Jiten Morarji, Sarah Hull, Nikolas Pontikos, Antonio Rueda Martin, Katherine R Smith, Manir Ali, Carmel Toomes, Martin McKibbin, Jill Clayton-Smith, Stephanie Grunewald, Michel Michaelides, Anthony T Moore, Alison J Hardcastle, Chris F Inglehearn, Andrew R Webster, Graeme C Black
Importance: Steroid 5α-reductase type 3 congenital disorder of glycosylation (SRD5A3-CDG) is a rare disorder of N-linked glycosylation. Its retinal phenotype is not well described but could be important for disease recognition because it appears to be a consistent primary presenting feature. Objective: To investigate a series of patients with the same mutation in the SRD5A3 gene and thereby characterize its retinal manifestations and other associated features. Design, Setting and Participants: Seven affected individuals from 4 unrelated families with early-onset retinal dystrophy as a primary manifestation underwent comprehensive ophthalmic assessment, including retinal imaging and electrodiagnostic testing...
March 2, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28249676/murine-recombinant-angiotensin-converting-enzyme-2-attenuates-kidney-injury-in-experimental-alport-syndrome
#8
Eun Hui Bae, Fei Fang, Vanessa R Williams, Ana Konvalinka, Xiaohua Zhou, Vaibhav B Patel, Xuewen Song, Rohan John, Gavin Y Oudit, York Pei, James W Scholey
Angiotensin-converting enzyme 2 (ACE2) is a monocarboxypeptidase in the renin-angiotensin system that catalyzes the breakdown of angiotensin II to angiotensin 1-7. We have reported that ACE2 expression in the kidney is reduced in experimental Alport syndrome but the impact of this finding on disease progression has not been studied. Accordingly, we evaluated effects of murine recombinant ACE2 treatment in Col4a3 knockout mice, a model of Alport syndrome characterized by proteinuria and progressive renal injury...
February 26, 2017: Kidney International
https://www.readbyqxmd.com/read/28202046/highly-predictive-snp-markers-for-efficient-selection-of-the-wheat-leaf-rust-resistance-gene-lr16
#9
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
#10
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
#11
Ceri A 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 W G Wilkinson
The human cytomegalovirus (HCMV) US12 family consists of ten sequentially arranged genes (US12-21) with poorly characterized function. We now identify novel natural killer (NK) cell evasion functions for four members: US12, US14, US18 and US20. Using a systematic multiplexed proteomics approach to quantify ~1300 cell surface and ~7200 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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
Amaury Bossion, Gavin O Jones, Daniel Taton, David Mecerreyes, James L Hedrick, Zhan Yuin Ong, Yi Yan Yang, Haritz Sardon
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 nontrivial 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...
February 17, 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
#19
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...
February 2, 2017: Nature
https://www.readbyqxmd.com/read/28081547/diagnosis-of-pancreaticobiliary-malignancy-by-detection-of-minichromosome-maintenance-protein-5-in-biliary-brush-cytology
#20
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
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