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Amanpreet Kaur, Marie R Webster, Ashani T Weeraratna
Although the clinical landscape of melanoma is improving rapidly, metastatic melanoma remains a deadly disease. Age remains one of the greatest risk factors for melanoma, and patients older than 55 have a much poorer prognosis than younger individuals, even when the data are controlled for grade and stage. The reasons for this disparity have not been fully uncovered, but there is some recent evidence that Wnt signalling may have a role. Wnt signalling is known to have roles both in cancer progression as well as in organismal ageing...
October 20, 2016: British Journal of Cancer
Michael V Friedman, J Derek Stensby, Jeremiah R Long, Stephen A Currie, Travis J Hillen
PURPOSE: Review the MRI appearance of different bursae located throughout the pelvis, including the pertinent osseous and musculotendinous anatomy. MATERIALS AND METHODS: Bursae are potential spaces that reduce friction between opposed moving components which can become inflamed, clinically mimicking internal derangement. RESULTS: This series illustrates the most common as well as lesser-known pelvic bursae. Common causes of bursitis including overuse, trauma, and infection are presented...
September 28, 2016: Clinical Imaging
Huong Nguyen, Jerome Vanclay, John Herbohn, Jennifer Firn
There is growing interest in multi-species tropical plantations but little information exists to guide their design and silviculture. The Rainforestation Farming system is the oldest tropical polyculture planting system in the Philippines and provides a unique opportunity to understand the underlying processes affecting tree performance within diverse plantings. Data collected from 85 plots distributed across the 18 mixed-species plantations in the Philippines was used to identify the factors influencing growth, probability of harvest, and death of trees in these complex plantings...
2016: PloS One
Melissa Ellamil, Joshua Berson, Jen Wong, Louis Buckley, Daniel S Margulies
Previous research on interpersonal synchrony has mainly investigated small groups in isolated laboratory settings, which may not fully reflect the complex and dynamic interactions of real-life social situations. The present study expands on this by examining group synchrony across a large number of individuals in a naturalistic environment. Smartphone acceleration measures were recorded from participants during a music set in a dance club and assessed to identify how group movement synchrony covaried with various features of the music...
2016: PloS One
Viviane B L Torres, Juliana Vassalo, Ulysses V A Silva, Pedro Caruso, André P Torelly, Eliezer Silva, José M M Teles, Marcos Knibel, Ederlon Rezende, José J S Netto, Claudio Piras, Luciano C P Azevedo, Fernando A Bozza, Nelson Spector, Jorge I F Salluh, Marcio Soares
INTRODUCTION: Cancer patients are at risk for severe complications related to the underlying malignancy or its treatment and, therefore, usually require admission to intensive care units (ICU). Here, we evaluated the clinical characteristics and outcomes in this subgroup of patients. MATERIALS AND METHODS: Secondary analysis of two prospective cohorts of cancer patients admitted to ICUs. We used multivariable logistic regression to identify variables associated with hospital mortality...
2016: PloS One
Volker Wenzel, Nikolaus Gravenstein
PURPOSE OF REVIEW: Mentoring is fundamentally valuable and important to students considering a path into our specialty, as well as to colleagues already in it and with ambition to advance. General principles and personal experiences are collected and described to help inform future mentors and to reinforce the value of having a mentor and the satisfaction (and work) that is associated with such a role. RECENT FINDINGS: Detecting a latent talent among medical students or residents may be challenging but is worth the effort to develop personal careers and the specialty itself...
October 18, 2016: Current Opinion in Anaesthesiology
Stéphane Beaudoin, Linda M Ofiara, Marc Bellerose, Anne V Gonzalez
No abstract text is available yet for this article.
October 2016: Journal of Bronchology & Interventional Pulmonology
Ahmet Hüseyin Acar, Hilal Alan, Cem Özgür, Nigar Vardi, Fatih Asutay, Çiğdem Güler
This study aims to evaluate the possible effect of more cortical bone decortication (CBD) on guided bone augmentation. A total of 16 New Zealand rabbits and 32 titanium domes were used. No cortical bone decortication was applied to the control group and in the study groups, the cortical bones were decorticated with a round burr (Group A: 1 hole with bleeding, Group B: 5 holes with bleeding, Group C: a thin layer of compact bone was completely removed with no bleeding). Then 2 titanium domes were placed on the calvarium of each rabbit with hydroxyapatite/beta-tricalcium phosphate...
October 2016: Journal of Craniofacial Surgery
Fatma Şenses, Mustafa E Önder, Ismail D Koçyiğit, Oğuz Kul, Gülümser Aydin, Elem Inal, Fethi Atil, Umut Tekin
PURPOSE: This study aimed to evaluate the effect of platelet-rich fibrin (PRF) on peripheral nerve regeneration on the sciatic nerve of rats by using functional, histopathologic, and electrophysiologic analyses. MATERIALS AND METHODS: Thirty female Wistar rats were divided randomly into 3 experimental groups. In group 1 (G1), which was the control group, the sciatic nerve was transected and sutured (n = 10). In group 2 (G2), the sciatic nerve was transected, sutured, and then covered with PRF as a membrane (n = 10)...
October 2016: Journal of Craniofacial Surgery
Jevon R Puckett, John W Pickering, Suetonia C Palmer, John L McCall, Michal T Kluger, Janak De Zoysa, Zoltan H Endre, Mattias Soop
OBJECTIVE: To determine whether a low perioperative minimum urine output target is safe and fluid sparing when compared with the standard target. BACKGROUND: A minimum hourly urine output of 0.5 mL/kg is a key target guiding perioperative fluid therapy. Few data support this standard practice, which may contribute to perioperative fluid overloading. METHODS: We randomized patients without significant risk factors for acute kidney injury undergoing elective colectomy to a minimum urine output target of 0...
October 19, 2016: Annals of Surgery
Anand Pandey, Vipin Gupta, Shailendra P Singh, Vijendra Kumar, Rajesh Verma
A trophic ulcer is a pressure ulcer caused by external trauma to a part of the body that is compromised due to disease, vascular insufficiency, or loss of afferent nerve fibers. Spinal dysraphism (ie, neural tube defects [NTD]) such as meningomyelocele is a risk factor for developing these ulcers in adults and pediatric patients. Information regarding the occurrence of trophic ulcers in pediatric patients with NTD is lacking. A review of the English-language literature on skin/neuropathic ulcers in patients with NTDs, irrespective of study design, published between 1975 and 2014, was undertaken using the PubMed database...
December 2015: Ostomy/wound Management
Ak'ingabe Guyon, Robert Perreault
Public health is currently being weakened in several Canadian jurisdictions. Unprecedented and arbitrary cuts to the public health budget in Quebec in 2015 were a striking example of this. In order to support public health leaders and citizens in their capacity to advocate for evidence-informed public health reforms, we propose a knowledge synthesis of elements of public health systems that are significantly associated with improved performance. Research consistently and significantly associates four elements of public health systems with improved productivity: 1) increased financial resources, 2) increased staffing per capita, 3) population size between 50,000 and 500,000, and 4) specific evidence-based organizational and administrative features...
October 20, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
Amanda Froehlich Chow, Anne Leis, Louise Humbert, Nazeem Muhajarine, Rachel Engler-Stringer
OBJECTIVES: In order to improve healthy behaviours among rural children in their early years, a physical activity and healthy eating intervention (Healthy Start - Départ Santé) was implemented in rural childcare centres throughout Saskatchewan. The objective of the current study was to evaluate the impact of a multimodal physical activity and healthy eating intervention on educators' provision of opportunities for children to improve their physical activity levels, fundamental movement skills and healthy eating behaviours...
October 20, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
Rachel B Acton, Lana Vanderlee, Christine White, David Hammond
OBJECTIVES: Several countries have proposed changes to calorie labelling on nutrition facts tables (NFTs) on pre-packaged foods. As most research to date has examined general use of NFTs, there is a lack of evidence to guide specific design changes to calorie information on labels. This study examined the efficacy of various calorie labelling formats on recall, comprehension, and consumer preferences for calorie information. METHODS: Experiments were conducted as part of an online survey with a national sample of 2,008 Canadians aged 16-24...
October 20, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
Vijayalakshmi Padmanabhan, Heather B Steinmetz, Elizabeth J Rizzo, Amber J Erskine, Tamara L Fairbank, Francine B de Abreu, Gregory J Tsongalis, Laura J Tafe
CONTEXT: -At our medical center, cytopathologists perform rapid on-site evaluation for specimen adequacy of fine-needle aspiration and touch imprint of needle core biopsy lung cancer samples. Two years ago the molecular diagnostics laboratory at our institution changed to next-generation sequencing using the Ion Torrent PGM and the 50-gene AmpliSeq Cancer Hotspot Panel v2 for analyzing mutations in a 50-gene cancer hot spot panel. This was associated with in a dramatic fall in adequacy rate (68%)...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Jean-Paul Lange
When investigating a new catalytic reaction, scientists may wonder if the crude reaction product can be easily separated and purified. We present here a new concept-distillation resistance-to assess the potential of distillation as a purification technique and to guide catalyst formulation or operation at the very early stage of the research. Distillation resistance, which has been developed from the analysis of 15 industrial distillation trains, can be quickly calculated with knowledge of only the product composition and atmospheric boiling points of the components...
October 20, 2016: ChemSusChem
Elizabeth J Bhoj, Zhenming Yu, Qiaoning Guan, Rebecca Ahrens-Nicklas, Kajia Cao, Minjie Luo, Tanya Tischler, Matthew A Deardorff, Elaine Zackai, Avni B Santani
INTRODUCTION: RASopathies include disorders generally characterized by developmental delay, specific heart defects, short stature, cardiac hypertrophy, and facial dysmorphisms. Next-generation sequencing (NGS)-based panels have widespread acceptance as a diagnostic tool for RASopathies. MATERIALS AND METHODS: The first 126 patients evaluated by clinical examination and the NGS RASopathy panel at the Children's Hospital of Philadelphia were enrolled. We calculated diagnosis rate, correlated reported clinical findings with positive or negative test results, and identified final molecular diagnoses in 28/96 patients who tested negative for RASopathies...
October 20, 2016: Genetics in Medicine: Official Journal of the American College of Medical Genetics
Tanya Bogoslovsky, Jessica Gill, Andreas Jeromin, Cora Davis, Ramon Diaz-Arrastia
Traumatic brain injury (TBI) is one of the leading causes of death and disability around the world. The lack of validated biomarkers for TBI is a major impediment to developing effective therapies and improving clinical practice, as well as stimulating much work in this area. In this review, we focus on different settings of TBI management where blood or cerebrospinal fluid (CSF) biomarkers could be utilized for predicting clinically-relevant consequences and guiding management decisions. Requirements that the biomarker must fulfill differ based on the intended context of use (CoU)...
October 18, 2016: Diagnostics
Syafiq Asnawi Zainal Abidin, Pathmanathan Rajadurai, Md Ezharul Hoque Chowdhury, Muhamad Rusdi Ahmad Rusmili, Iekhsan Othman, Rakesh Naidu
Tropidolaemus wagleri and Cryptelytrops purpureomaculatus are venomous pit viper species commonly found in Malaysia. Tandem mass spectrometry analysis of the crude venoms has detected different proteins in T. wagleri and C. purpureomaculatus. They were classified into 13 venom protein families consisting of enzymatic and nonenzymatic proteins. Enzymatic families detected in T. wagleri and C. purpureomaculatus venom were snake venom metalloproteinase, phospholipase A₂, ʟ-amino acid oxidase, serine proteases, 5'-nucleotidase, phosphodiesterase, and phospholipase B...
October 18, 2016: Toxins
M J Lin, F Baky, B C Housley, N Kelly, E Pletcher, J D Balshi, S P Stawicki, D C Evans
INTRODUCTION: Clinical information continues to be limited regarding changes in the temporal risk profile for readmissions during the initial postoperative year in vascular surgery patients. We set out to describe the associations between demographics, clinical outcomes, comorbidity indices, and hospital readmissions in a sample of patients undergoing common extremity revascularization or dialysis access (ERDA) procedures. We hypothesized that factors independently associated with readmission will evolve from "short-term" to "long-term" determinants at 30-, 180-, and 360-day postoperative cutoff points...
October 2016: Journal of Postgraduate Medicine
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