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https://www.readbyqxmd.com/read/29220801/assessment-of-temperature-and-ultraviolet-radiation-effects-on-sunburn-incidence-at-an-inland-u-s-beach-a-cohort-study
#1
Jason W Marion, Jiyoung Lee, James S Rosenblum, Timothy J Buckley
BACKGROUND: Increases in outdoor temperature may lead to increases in sunburn, outdoor exposure, and skin cancer in human populations. OBJECTIVE: This study aimed to quantify sunburn incidence and risk for Ohio beachgoers exposed to varying outdoor conditions. METHODS: Sunburn incidence data were obtained through a prospective cohort study at East Fork Lake (Cincinnati, Ohio, USA). Recruitment occurred over 26 weekend days. Beach interviews and follow-up telephone interviews obtained exposure and health information...
December 5, 2017: Environmental Research
https://www.readbyqxmd.com/read/29220778/quantitative-assessment-of-naegleria-fowleri-and-fecal-indicator-bacteria-in-brackish-water-of-lake-pontchartrain-louisiana
#2
Jia Xue, Frederica G Lamar, Bowen Zhang, Siyu Lin, Jennifer G Lamori, Samendra P Sherchan
Brackish water samples from Lake Pontchartrain in Louisiana were assessed for the presence of pathogenic amoeba Naegleria fowleri, which causes primary amoebic meningoencephalitis (PAM). In our study, quantitative polymerase chain reaction (qPCR) methods were used to determine N. fowleri, E. coli, and enterococci in water collected from Lake Pontchartrain. N. fowleri target sequence was detected in 35.4% (56/158) of the water samples from ten sites around the lake. Statistically significant positive correlations between N...
December 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29220761/climate-change-potential-effects-on-the-hydrological-regime-of-freshwater-springs-in-the-italian-northern-apennines
#3
Federico Cervi, Francesca Petronici, Attilio Castellarin, Marco Marcaccio, Andrea Bertolini, Lisa Borgatti
In large areas of the Italian Northern Apennines, hundreds of low-yield springs provide water for drinking and industrial purposes, with short groundwater flow paths being formed within fractured sedimentary rock units. This hydrogeological setting results in spring water discharges that closely follow meteoric water recharge patterns, leading to low-flow periods concentrated in the summer/early autumn. Therefore, the springs' outflow can be very sensitive to a shortage in water recharge, as it was the case in 2003 and 2017, when a prolonged period of drought caused severe water management issues...
December 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29220710/life-satisfaction-and-its-associated-factors-among-money-boys-in-china
#4
A Zhang, J Yan, G Yang, X Tan, X Wang, S Tan
OBJECTIVES: Money Boy (MB) is a unique term used in China referring to a specialized population of men who sell sex to other men. Life satisfaction can influence one's health-related behaviors. The aim of our study was to find out the situation of MBs' life satisfaction and its associated factors. STUDY DESIGN: A cross-sectional study among MBs was conducted between July and December 2013 in Hunan province, China. METHODS: Respondent-driven sampling method was used for recruitment, with the initial seven 'seeds' found from a gay dating website, and 234 participants were enrolled into the study...
December 5, 2017: Public Health
https://www.readbyqxmd.com/read/29220677/a-powerful-approach-to-estimating-annotation-stratified-genetic-covariance-via-gwas-summary-statistics
#5
Qiongshi Lu, Boyang Li, Derek Ou, Margret Erlendsdottir, Ryan L Powles, Tony Jiang, Yiming Hu, David Chang, Chentian Jin, Wei Dai, Qidu He, Zefeng Liu, Shubhabrata Mukherjee, Paul K Crane, Hongyu Zhao
Despite the success of large-scale genome-wide association studies (GWASs) on complex traits, our understanding of their genetic architecture is far from complete. Jointly modeling multiple traits' genetic profiles has provided insights into the shared genetic basis of many complex traits. However, large-scale inference sets a high bar for both statistical power and biological interpretability. Here we introduce a principled framework to estimate annotation-stratified genetic covariance between traits using GWAS summary statistics...
December 7, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29220610/predictors-of-alcohol-use-during-pregnancy-among-women-attending-midwife-obstetric-units-in-the-cape-metropole-south-africa
#6
Petal Petersen-Williams, Catherine Mathews, Esmé Jordaan, Charles D H Parry
INTRODUCTION: Little is known about the nature and extent of substance use among pregnant women in Cape Town (South Africa) despite the very high levels of substance use and related consequences such as FASD in this part of the country. The aim of the study was to determine predictors of alcohol use among pregnant women. METHODS: A cross-sectional survey was conducted among pregnant women attending 11 Midwife Obstetric Units (MOUs) in greater Cape Town. A two-stage cluster survey design was used...
December 8, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/29220543/skin-cancer-prevention-campaign-in-childhood-survey-based-on-3-676-children-in-brazil
#7
Paulo Ricardo Criado, Jorge Ocampo-Garza, Anne Lise Dias, Walter Belda Junior, Nilton Di Chiachio, Aparecida Machado de Moraes, Meire Brasil Parada, Fátima de Oliveira Rabay, Octavio Moraes Junior, Renato Sau Rios, Cristiana Silveira da Silva, Francisco C S Ferreira, Samuel Henrique Mandeulbaum, Cidia Vasconcellos
BACKGROUND AND OBJECTIVES: Primary skin cancer prevention campaigns are essential and more effective among children, not only because of the importance of sun exposure effects during this period, but also because at this age is when individuals are developing behaviors. The Brazilian Society of Dermatology - Regional State of Sao Paulo developed and conducted, the program named "The Sun, Friend of Childhood", a school health education and disease prevention project for children and parents...
December 8, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29220496/the-duration-of-influenza-vaccine-effectiveness-a-systematic-review-meta-analysis-and-meta-regression-of-test-negative-design-case-control-studies
#8
Barnaby Young, Sapna Sadarangani, Lili Jiang, Annelies Wilder-Smith, Mark I-Cheng Chen
Background: Whether influenza vaccination offers protection for the duration of an influenza season has recently been questioned following analysis of data from test-negative design (TND) case-control studies. Method: The published literature was systematically reviewed to identify TND studies which estimated change in vaccine effectiveness (VE) with time since vaccination. Results: Fourteen studies were identified through the literature search as meeting eligibility criteria...
December 6, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29220427/steroid-but-not-biological-therapy-elevates-the-risk-of-venous-thromboembolic-events-in-inflammatory-bowel-disease-a-meta-analysis
#9
Patricia Sarlos, Kata Szemes, Peter Hegyi, Andras Garami, Imre Szabo, Anita Illes, Margit Solymar, Erika Petervari, Aron Vincze, Gabriella Par, Judit Bajor, Jozsef Czimmer, Orsolya Huszar, Peter Varju, Nelli Farkas
Background and aim: Inflammatory bowel disease [IBD] is associated with 1.5- to 3-fold increased risk of venous thromboembolic events [VTE]. The aim of this study was to determine the risk of VTE in IBD as a complication of systemic corticosteroids and anti-tumor necrosis factor alpha [TNFα] therapies. Methods: A systematic review and meta-analysis was conducted, which conforms to the Preferred Reporting Items for Systematic Reviews and Meta-analyses [PRISMA] statement...
December 6, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29220390/maldi-msi-of-melim-melanoma-searching-for-differences-in-protein-profiles
#10
Roman Guran, Lucie Vanickova, Vratislav Horak, Sona Krizkova, Petr Michalek, Zbynek Heger, Ondrej Zitka, Vojtech Adam
BACKGROUND: Treatment of advanced cutaneous melanoma remains challenging, and new data on melanoma biology are required. The most widely accepted criteria for the prognostic evaluation of melanoma are histopathological and clinical parameters, and the identification of additional tumor markers is thus of paramount importance. Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI), an important tool in cancer research, is useful for unraveling the molecular profile of melanoma...
2017: PloS One
https://www.readbyqxmd.com/read/29220376/c5a-and-c5ar-are-elevated-in-joints-of-rheumatoid-and-psoriatic-arthritis-patients-and-c5ar-blockade-attenuates-leukocyte-migration-to-synovial-fluid
#11
Lars Hornum, Anker Jon Hansen, Ditte Tornehave, Marianne Scheel Fjording, Paula Colmenero, Inger Falbe Wätjen, Niels Henrik Søe Nielsen, Henning Bliddal, Else Marie Bartels
Complement activation correlates to rheumatoid arthritis disease activity, and increased amounts of the complement split product C5a is observed in synovial fluids from rheumatoid arthritis patients. Blockade of C5a or its receptor (C5aR) is efficacious in several arthritis models. The aim of this study was to investigate the role of C5a and C5aR in human rheumatoid arthritis and psoriatic arthritis-both with respect to expression and function. Synovial fluid, blood and synovial samples were obtained from rheumatoid arthritis, psoriatic arthritis and osteoarthritis patients as a less inflammatory arthritis type, and blood from healthy subjects...
2017: PloS One
https://www.readbyqxmd.com/read/29220357/difference-of-the-progression-of-pulmonary-cysts-assessed-by-computed-tomography-among-copd-lymphangioleiomyomatosis-and-birt-hogg-dub%C3%A3-syndrome
#12
Kazunori Tobino, Toyohiro Hirai, Takeshi Johkoh, Kiminori Fujimoto, Atsushi Kawaguchi, Noriyuki Tomiyama, Kazuhisa Takahashi, Kuniaki Seyama
Many groups developed the methods to quantitatively analyze low attenuation area (LAA) on chest CT in patients with cystic lung diseases. Especially in COPD, it was reported that the cumulative size distribution of LAA clusters follows a power law characterized by the exponent D, which reflect the fractal dimension of terminal airspace geometry. We hypoyhesized that the quantitative charateristics of LAA clusters including fractal property might indicate the different features of the progression of cysts in cystic lung diseases...
2017: PloS One
https://www.readbyqxmd.com/read/29220315/background-modeling-by-stability-of-adaptive-features-in-complex-scenes
#13
Dan Yang, Chenqiu Zhao, Xiaohong Zhang, Sheng Huang
The single-feature-based background model often fails in complex scenes, since a pixel is better described by several features, which highlight different characteristics of it. Therefore, the multi-feature-based background model has drawn much attention recently. In this paper, we propose a novel multi-feature-based background model, named stability of adaptive feature (SoAF) model, which utilizes the stabilities of different features in a pixel to adaptively weigh the contributions of these features for foreground detection...
March 2018: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29220308/learning-midlevel-auditory-codes-from-natural-sound-statistics
#14
Wiktor Młynarski, Josh H McDermott
Interaction with the world requires an organism to transform sensory signals into representations in which behaviorally meaningful properties of the environment are made explicit. These representations are derived through cascades of neuronal processing stages in which neurons at each stage recode the output of preceding stages. Explanations of sensory coding may thus involve understanding how low-level patterns are combined into more complex structures. To gain insight into such midlevel representations for sound, we designed a hierarchical generative model of natural sounds that learns combinations of spectrotemporal features from natural stimulus statistics...
December 8, 2017: Neural Computation
https://www.readbyqxmd.com/read/29218696/a-modular-vascular-access-training-program-for-higher-surgical-trainees
#15
Mark Edwards, Alexander D Rodway, Islam G Ahmed, Richard A Harvey, Tamer S Foad, Karim M El Sakka
INTRODUCTION: Access surgery is delivered by vascular/transplant surgeons with a division that is defined by historic practice. This has resulted in an inconsistent training pattern. We aimed to design a focused, modular training program (The Brighton Vascular Access Fellowship) providing trainees with a reproducible level of exposure and competence. METHODS: The programme was 16 days over 8 weeks on a one-to-one basis with candidates expected to be performing procedures as first surgeon with ongoing, formative assessment...
December 4, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29218667/the-novel-trial-natural-orifice-versus-laparoscopic-cholecystectomy-a-prospective-randomized-evaluation
#16
Steven D Schwaitzberg, Kurt Roberts, John R Romanelli, David J Desilets, David Earle, Santiago Horgan, Lee Swanstrom, Eric Hungness, Nathaniel Soper, Michael L Kochman
INTRODUCTION: The evolution of Natural Orifice Translumenal Endoscopic Surgery® (NOTES®) represents a case study in surgical procedural evolution. Beginning in 2004 with preclinical feasibility studies, and followed by the creation of the NOSCAR® collaboration between The Society of American Gastrointestinal and Endoscopic Surgeons and the American Society for Gastrointestinal Endoscopy, procedural development followed a stepwise incremental pathway. The work of this consortium has included white paper analyses, obtaining outside independent funding for basic science and procedural development, and, ultimately, the initiation of a prospective randomized clinical trial comparing NOTES® cholecystectomy as an alternative procedure to laparoscopic cholecystectomy...
December 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29218620/the-impact-of-injector-based-contrast-agent-administration-in-time-resolved-mra
#17
Johannes Budjan, Ulrike I Attenberger, Stefan O Schoenberg, Hubertus Pietsch, Gregor Jost
OBJECTIVES: Time-resolved contrast-enhanced MR angiography (4D-MRA), which allows the simultaneous visualization of the vasculature and blood-flow dynamics, is widely used in clinical routine. In this study, the impact of two different contrast agent injection methods on 4D-MRA was examined in a controlled, standardized setting in an animal model. METHODS: Six anesthetized Goettingen minipigs underwent two identical 4D-MRA examinations at 1.5 T in a single session...
December 7, 2017: European Radiology
https://www.readbyqxmd.com/read/29218499/effect-of-clip3-upregulation-on-astrocyte-proliferation-and-subsequent-glial-scar-formation-in-the-rat-spinal-cord-via-stat3-pathway-after-injury
#18
Xiaoqing Chen, Cheng Chen, Jie Hao, Jiyun Zhang, Feng Zhang
Spinal cord injury (SCI) is a devastating event resulting in neuron degeneration and permanent paralysis through inflammatory cytokine overproduction and glial scar formation. Presently, the endogenous molecular mechanisms coordinating glial scar formation in the injured spinal cord remain elusive. Signal transducer and activator of transcription 3 (STAT3) is a well-known transcription factor particularly involving in cell proliferation and inflammation in the lesion site following SCI. Meanwhile, CAP-Gly domain containing linker protein 3(CLIP3), a vital cytoplasmic protein, has been confirmed to providing an optimal conduit for intracellular signal transduction and interacting with STAT3 with mass spectrometry analysis...
December 7, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29218496/testing-the-association-between-traditional-and-novel-indicators-of-county-level-structural-racism-and-birth-outcomes-among-black-and-white-women
#19
Brittany D Chambers, Jennifer Toller Erausquin, Amanda E Tanner, Tracy R Nichols, Shelly Brown-Jeffy
Despite decreases in infants born premature and at low birth weight in the United States (U.S.), racial disparities between Black and White women continue. In response, the purpose of this analysis was to examine associations between both traditional and novel indicators of county-level structural racism and birth outcomes among Black and White women. We merged individual-level data from the California Birth Statistical Master Files 2009-2013 with county-level data from the United States (U.S.) Census American Community Survey...
December 7, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/29218000/synapse-specific-regulation-revealed-at-single-synapses-is-concealed-when-recording-multiple-synapses
#20
Justin Lines, Ana Covelo, Ricardo Gómez, Lan Liu, Alfonso Araque
Synaptic transmission and its activity-dependent modulation, known as synaptic plasticity, are fundamental processes in nervous system function. Neurons may receive thousands of synaptic contacts, but synaptic regulation may occur only at individual or discrete subsets of synapses, which may have important consequences on the spatial extension of the modulation of synaptic information. Moreover, while several electrophysiological methods are used to assess synaptic transmission at different levels of observation, i...
2017: Frontiers in Cellular Neuroscience
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