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Kieran Borgeat, Kerry Simpson, David Reese, Helen Wilson, Joanna Potter, Daniel Ogden
Case summary: Bronchial stents may be useful to relieve clinical signs of extraluminal compression. Herein we describe a case which, to our knowledge, is the first cat where bilateral bronchial stents have been used clinically. Respiratory signs of principal bronchial compression were alleviated after the stent procedure. Minor complications occurred, specifically: severe hypoxia during stent deployment; a transient, self-limiting postoperative pneumothorax possibly associated with ventilation-induced lung injury; bronchopneumonia (possibly pre-existing); and transient worsening of cough postoperatively...
January 2018: JFMS Open Reports
Cynthia L Ogden, Margaret D Carroll, Tala H Fakhouri, Craig M Hales, Cheryl D Fryar, Xianfen Li, David S Freedman
Obesity prevalence varies by income and education level, although patterns might differ among adults and youths (1-3). Previous analyses of national data showed that the prevalence of childhood obesity by income and education of household head varied across race/Hispanic origin groups (4). CDC analyzed 2011-2014 data from the National Health and Nutrition Examination Survey (NHANES) to obtain estimates of childhood obesity prevalence by household income (≤130%, >130% to ≤350%, and >350% of the federal poverty level [FPL]) and head of household education level (high school graduate or less, some college, and college graduate)...
February 16, 2018: MMWR. Morbidity and Mortality Weekly Report
John Larsen, Paul Wallace, Fiona Sim, Jonathan Chick, Sarah Jarvis, Iona Lidington, Stephen Neidle, Graham Ogden, Lynn Owens
A recent paper in Drug and Alcohol Review analysed the information on cancer disseminated by 27 alcohol industry funded organisations. The independent UK alcohol education charity Drinkaware was among the organisations whose information was studied, and based on the analysis claims were made of misrepresentation of evidence about the alcohol-related risk of cancer and alcohol industry influence. This commentary challenges the validity of these findings in respect to the evidence relating to the Drinkaware information, as the analysis is found to be misrepresenting the information by both disregarding the wider information content provided and the order and prominence with which alcohol-related cancer risk is presented...
February 12, 2018: Drug and Alcohol Review
Richard Baumgartner, Aniket Joshi, Dai Feng, Francesca Zanderigo, R Todd Ogden
No abstract text is available yet for this article.
February 12, 2018: EJNMMI Research
Seyed Abdolmajid Yousefsani, Amir Shamloo, Farzam Farahmand
A transverse-plane hyperelastic micromechanical model of brain white matter tissue was developed using the embedded element technique (EET). The model consisted of a histology-informed probabilistic distribution of axonal fibers embedded within an extracellular matrix, both described using the generalized Ogden hyperelastic material model. A correcting method, based on the strain energy density function, was formulated to resolve the stiffness redundancy problem of the EET in large deformation regime. The model was then used to predict the homogenized tissue behavior and the associated localized responses of the axonal fibers under quasi-static, transverse, large deformations...
February 3, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Padmashree Rida, Angela Ogden, Ian O Ellis, Zsuzsanna Varga, Antonio C Wolff, Tiffany A Traina, Christos Hatzis, Julie R Palmer, Christine B Ambrosone, Brian D Lehmann, Rita Nanda, Valerie Montgomery Rice, Otis W Brawley, Mylin A Torres, Emad Rakha, Ritu Aneja
Recently, Georgia State University's Centennial Hall was the premier location for the 2017 International Conference on Triple Negative Breast Cancer (TNBC): Illuminating Actionable Biology, which was held from Sept. 18 to 20, 2017, in Atlanta, USA. The conference featured a stellar line-up of domestic and international speakers and diverse participants including TNBC survivors, luminaries in breast cancer research, medical students and fellows, clinicians, translational researchers, epidemiologists, biostatisticians, bioinformaticians, and representatives from the industry...
February 8, 2018: Breast Cancer Research and Treatment
Mauro Fittipaldi, Landon R Grace
Lipid uptake and subsequent degradation was characterized as a function of molecular weight and styrene content in four different formulations of poly(styrene-block-Isobutylene-block-styrene) (SIBS). Mechanical testing in uniaxial tension at varying lipid concentrations showed a consistent decrease in tensile strength for all specimens due to lipid contamination. Higher styrene content was associated with an improved resistance to lipid intrusion. A decrease in elongation at break was observed for low molecular weight formulations only; an expected result of the stiffer network and local chain motion restriction due to increased entanglements in high molecular weight SIBS...
January 31, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Robert Shaheen, Marc Doumit
Research in the field of human mobility assist devices, aiming to reduce the metabolic cost of daily activities, is seeing the benefits of the exclusive use of accumulators to store and release energy during the gait cycle. The Pneumatic Artificial Muscle, used in a passive state, has proven to be a superior choice for these devices when compared to its alternatives, however, challenges regarding muscle pressure dissipation and a limited elongation potential have been identified. A recently developed, novel Soft Composite material has been shown to experimentally replicate the distinctive mechanical behaviour of the Pneumatic Artificial Muscle, without the need for internal pressurization...
January 31, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Ellen Y Stromdahl, Robyn M Nadolny, Graham J Hickling, Sarah A Hamer, Nicholas H Ogden, Cory Casal, Garrett A Heck, Jennifer A Gibbons, Taylor F Cremeans, Mark A Pilgard
In the early 1980s, Ixodes spp. ticks were implicated as the key North American vectors of Borrelia burgdorferi (Johnson, Schmid, Hyde, Steigerwalt and Brenner) (Spirocheatales: Spirochaetaceae), the etiological agent of Lyme disease. Concurrently, other human-biting tick species were investigated as potential B. burgdorferi vectors. Rashes thought to be erythema migrans were observed in patients bitten by Amblyomma americanum (L.) (Acari: Ixodidae) ticks, and spirochetes were visualized in a small percentage of A...
January 31, 2018: Journal of Medical Entomology
Asher Y Rosinger, Kirsten A Herrick, Amber Y Wutich, Jonathan S Yoder, Cynthia L Ogden
OBJECTIVE: Differences in bottled v. tap water intake may provide insights into health disparities, like risk of dental caries and inadequate hydration. We examined differences in plain, tap and bottled water consumption among US adults by sociodemographic characteristics. DESIGN: Cross-sectional analysis. We used 24 h dietary recall data to test differences in percentage consuming the water sources and mean intake between groups using Wald tests and multiple logistic and linear regression models...
February 1, 2018: Public Health Nutrition
Kewei Li, Ray W Ogden, Gerhard A Holzapfel
Recently, micro-sphere-based methods derived from the angular integration approach have been used for excluding fibres under compression in the modelling of soft biological tissues. However, recent studies have revealed that many of the widely used numerical integration schemes over the unit sphere are inaccurate for large deformation problems even without excluding fibres under compression. Thus, in this study, we propose a discrete fibre dispersion model based on a systematic method for discretizing a unit hemisphere into a finite number of elementary areas, such as spherical triangles...
January 2018: Journal of the Royal Society, Interface
Mikkel Marquardsen, Michelle Ogden, Peter C Gøtzsche
Objective To describe the redactions in contemporary protocols for industry-sponsored randomised drug trials with patient relevant outcomes and to evaluate whether there was a legitimate rationale for the redactions. Design Cohort study. Under the Freedom of Information Act, we requested access to trial protocols approved by a research ethics committee in Denmark from October 2012 to March 2013. We received 17 consecutive protocols, which had been redacted before we got them, and nine protocols without redactions...
January 1, 2018: Journal of the Royal Society of Medicine
Daniel P Stewart, Suresh Marada, William J Bodeen, Ashley Truong, Sadie Miki Sakurada, Tanushree Pandit, Shondra M Pruett-Miller, Stacey K Ogden
Hedgehog ligands activate an evolutionarily conserved signaling pathway that provides instructional cues during tissue morphogenesis, and when corrupted, contributes to developmental disorders and cancer. The transmembrane protein Dispatched is an essential component of the machinery that deploys Hedgehog family ligands from producing cells, and is absolutely required for signaling to long-range targets. Despite this crucial role, regulatory mechanisms controlling Dispatched activity remain largely undefined...
January 23, 2018: ELife
Ruth S Ogden, Rhiannon MacKenzie-Phelan, Catharine Mongtomery, John E Fisk, John H Wearden
Temporal perception is influenced by executive function. However, performance on different temporal tasks is often associated with different executive functions. This study examined whether using reference memory during a task influenced how performance was associated with executive resources. Participants completed temporal generalisation and bisection tasks, in their normal versions involving reference memory and in episodic versions without reference memory. Each timing task had two difficulty levels: easy and hard...
January 1, 2018: Quarterly Journal of Experimental Psychology: QJEP
Ulas Yuksel, Bulent Bakar, Gungor Cagdas Dincel, Fatma Azize Budak Yildiran, Mustafa Ogden, Ucler Kisa
AIM: Today, spinal cord injury (SCI) can be rehabilitated but cannot be treated adequately. This experimental study was conducted to investigate possible beneficial effects of methylprednisolone and parecoxib in treatment of SCI. MATERIALS AND METHODS: Forty-eight male Wistar albino rats were assigned into CONTROL, acute (MP-A, PX-A, and PXMP-A), and subacute (MP-S, PX-S, and PXMP-S) stage groups. Then, to induce SCI, a temporary aneurysm clip was applied to the spinal cord following T7-8 laminectomy, except in the CONTROL group...
January 22, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
Ibrahim Akkurt, Bulent Bakar, Gungor Cagdas Dincel, Fatma Azize Budak Yıldıran, Mustafa Ogden, Egemen Nursoy, Elif Sari
PURPOSE: Peridural fibrosis which could occur after the spinal surgery could adhere neural tissue closely and may cause to neural entrapment symptoms and require surgical reintervention. AIM OF THE STUDY: Present study was designed to reduce occurrence of peridural fibrosis in rat laminectomy model by using biophysical barriers called hyaluronic acid (HAS) dural barrier, activated polyethylene glycol and polyethylene imine (PEG) dural barrier, and platelet-rich plasma (PRP)...
January 18, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
K Narooei, M Arman
In this research, the exponential stretched based hyperelastic strain energy was generalized to the hyper-viscoelastic model using the heredity integral of deformation history to take into account the strain rate effects on the mechanical behavior of materials. The heredity integral was approximated by the approach of Goh et al. to determine the model parameters and the same estimation was used for constitutive modeling. To present the ability of the proposed hyper-viscoelastic model, the stress-strain response of the thermoplastic elastomer gel tissue at different strain rates from 0...
December 23, 2017: Journal of the Mechanical Behavior of Biomedical Materials
Katie M Clow, Patrick A Leighton, Nicholas H Ogden, L Robbin Lindsay, Pascal Michel, David L Pearl, Claire M Jardine
The invasion of the blacklegged tick, Ixodes scapularis into Ontario, Canada poses a significant risk to public health because it is a vector for numerous pathogens, including Borrelia burgdorferi sensu stricto, the causative agent of Lyme disease. Baseline field sampling in 2014 and 2015 detected I. scapularis and B. burgdorferi at sites across southern, eastern and central Ontario, including a hot spot in eastern Ontario. A "speed of spread" model for I. scapularis developed by Leighton and colleagues (2012) estimated that the tick's range was expanding northward at 46 km/year...
2017: PloS One
J John Mann, Allison V Metts, R Todd Ogden, Chester A Mathis, Harry Rubin-Falcone, Zhiqun Gong, Wayne C Drevets, Jamie Zelazny, David A Brent
No abstract text is available yet for this article.
December 27, 2017: Archives of Suicide Research: Official Journal of the International Academy for Suicide Research
Cynthia L Ogden, David S Freedman, Craig M Hales
No abstract text is available yet for this article.
December 19, 2017: Pediatrics
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