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https://www.readbyqxmd.com/read/29161632/ambient-air-pollution-adipokines-and-glucose-homeostasis-the-framingham-heart-study
#1
Wenyuan Li, Kirsten S Dorans, Elissa H Wilker, Mary B Rice, Itai Kloog, Joel D Schwartz, Petros Koutrakis, Brent A Coull, Diane R Gold, James B Meigs, Caroline S Fox, Murray A Mittleman
OBJECTIVE: To examine associations of proximity to major roadways, sustained exposure to fine particulate matter (PM2.5), and acute exposure to ambient air pollutants with adipokines and measures of glucose homeostasis among participants living in the northeastern United States. METHODS: We included 5958 participants from the Framingham Offspring cohort examination cycle 7 (1998-2001) and 8 (2005-2008) and Third Generation cohort examination cycle 1 (2002-2005) and 2 (2008-2011), who did not have type 2 diabetes at the time of examination visit...
November 18, 2017: Environment International
https://www.readbyqxmd.com/read/29161562/membrane-traffic-trans-golgi-tethers-leave-a%C3%A2-surprisingly-small-gap
#2
Francis A Barr
Activation and inactivation of Rab GTPases by GEFs and GAPs promotes or terminates vesicle tethering to organelles, respectively. This simple model is challenged by new evidence revealing that a catalytically inactive Rab GAP promotes rather than terminates vesicle tethering at the trans-Golgi.
November 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29161538/analysis-of-crash-proportion-by-vehicle-type-at-traffic-analysis-zone-level-a-mixed-fractional-split-multinomial-logit-modeling-approach-with-spatial-effects
#3
Jaeyoung Lee, Shamsunnahar Yasmin, Naveen Eluru, Mohamed Abdel-Aty, Qing Cai
In traffic safety literature, crash frequency variables are analyzed using univariate count models or multivariate count models. In this study, we propose an alternative approach to modeling multiple crash frequency dependent variables. Instead of modeling the frequency of crashes we propose to analyze the proportion of crashes by vehicle type. A flexible mixed multinomial logit fractional split model is employed for analyzing the proportions of crashes by vehicle type at the macro-level. In this model, the proportion allocated to an alternative is probabilistically determined based on the alternative propensity as well as the propensity of all other alternatives...
November 18, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/29161365/genome-scale-analysis-ofescherichia-coliwith-a-comprehensive-prokaryotic-sequence-based-biophysical-model-of-translation-initiation-and-elongation
#4
Gilad Shaham, Tamir Tuller
Translation initiation in prokaryotes is affected by the mRNA folding and interaction of the ribosome binding site with the ribosomal RNA. The elongation rate is affected, among other factors, by the local biophysical properties of the coding regions, the decoding rates of different codons, and the interactions among ribosomes. Currently, there is no comprehensive biophysical model of translation that enables the prediction of mRNA translation dynamics based only on the transcript sequence and while considering all of these fundamental aspects of translation...
November 17, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/29161230/long-term-exposure-to-transportation-noise-in-relation-to-development-of-obesity-a-cohort-study
#5
Andrei Pyko, Charlotta Eriksson, Tomas Lind, Natalya Mitkovskaya, Alva Wallas, Mikael Ögren, Claes-Göran Östenson, Göran Pershagen
BACKGROUND: Exposure to transportation noise is widespread and has been associated with obesity in some studies. However, the evidence from longitudinal studies is limited and little is known about effects of combined exposure to different noise sources. OBJECTIVES: The aim of this longitudinal study was to estimate the association between exposure to noise from road traffic, railways, or aircraft and the development of obesity markers. METHODS: We assessed individual long-term exposure to road traffic, railway, and aircraft noise based on residential histories in a cohort of 5,184 men and women from Stockholm County...
November 20, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29161079/a-new-frontier-in-immunometabolism-cholesterol-in-lung-health-and-disease
#6
Michael B Fessler
The lung has a unique relationship to cholesterol that is shaped by its singular physiology. On the one hand, the lungs receive the full cardiac output and have a predominant dependence on plasma lipoprotein uptake for their cholesterol supply. On the other hand, surfactant lipids, including cholesterol, are continually susceptible to oxidation owing to direct environmental exposure and must be cleared or recycled because of the very narrow biophysical mandates placed upon surfactant lipid composition. Interestingly, increased lipid-laden macrophage "foam cells" have been noted in a wide range of human lung pathologies...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29160435/risk-factors-in-cardiovascular-disease-mortality-associated-with-high-exposure-to-vehicular-traffic
#7
Poliany Cristiny de Oliveira Rodrigues, Emerson Soares Dos Santos, Sandra de Souza Hacon, Eliane Ignotti
OBJECTIVE: To identify areas and risk factors in cardiovascular disease (CD) mortality associated with air pollution from high exposure to vehicular traffic. METHODS: Cross-sectional study of CD mortality in 2,617 individuals aged 45-85 years living in the urban area of Cuiabá and Várzea Grande, Mato Grosso State, Brazil, between 2009 and 2011. We used the residential proximity of up to 150 meters to a roadway of great vehicle flow as a proxy of high exposure to air pollution from vehicular traffic...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29159470/biogeochemical-assessment-of-the-urban-area-in-moscow
#8
Vadim Ermakov, Leonid Perelomov, Sabsbakhor Khushvakhtova, Sergey Tyutikov, Valentina Danilova, Vladimir Safonov
The biogeochemical and ecological assessment of the industrial city territory including urban soils and trees was carried out. Chemical (macroelement and microelement) composition of the city soils, morphological and biochemical properties of the linden leaves, possible impact of de-icing salts on soil and tree state, the correlation between the content of trace elements, and the S-containing plant compounds (phytochelatins) were included in the assessment. It was found that concentrations of trace elements in the soils near road with intensive traffic are changed from the soils, located at a distance of 40-50 m from the road...
November 21, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29158561/using-a-single-vcsel-source-employing-ofdm-downstream-signal-and-remodulated-ook-upstream-signal-for-bi-directional-visible-light-communications
#9
Chien-Hung Yeh, Liang-Yu Wei, Chi-Wai Chow
In this work, we propose and demonstrate for the first time up to our knowledge, using a 682 nm visible vertical-cavity surface-emitting laser (VCSEL) applied in a bi-directional wavelength remodulated VLC system with a free space transmission distance of 3 m. To achieve a high VLC downstream traffic, spectral efficient orthogonal-frequency-division-multiplexing quadrature-amplitude-modulation (OFDM-QAM) with bit and power loading algorithms are applied on the VCSEL in the central office (CO). The OFDM downstream wavelength is remodulated by an acousto-optic modulator (AOM) with OOK modulation to produce the upstream traffic in the client side...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29157970/vertical-characteristics-of-vocs-in-the-lower-troposphere-over-the-north-china-plain-during-pollution-periods
#10
Jie Sun, Yuesi Wang, Fangkun Wu, Guiqian Tang, Lili Wang, Yinghong Wang, Yuan Yang
In recent years, photochemical smog and gray haze-fog have frequently appeared over northern China. To determine the spatial distribution of volatile organic compounds (VOC) during a pollution period, tethered balloon flights were conducted over a suburban site on the North China Plain. Statistical analysis showed that the VOCs concentrations peaked at the surface, and decreased with altitude. A rapid decrease appeared from the surface to 400 m, with concnetrations of alkanes, alkenes, aromatics and halocarbons decreasing by 48...
November 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29157235/telomere-tracking-from-birth-to-adulthood-and-residential-traffic-exposure
#11
Esmée M Bijnens, Maurice P Zeegers, Catherine Derom, Dries S Martens, Marij Gielen, Geja J Hageman, Michelle Plusquin, Evert Thiery, Robert Vlietinck, Tim S Nawrot
BACKGROUND: Telomere attrition is extremely rapid during the first years of life, while lifestyle during adulthood exerts a minor impact. This suggests that early life is an important period in the determination of telomere length. We investigated the importance of the early-life environment on both telomere tracking and adult telomere length. METHODS: Among 184 twins of the East Flanders Prospective Twin Survey, telomere length in placental tissue and in buccal cells in young adulthood was measured...
November 21, 2017: BMC Medicine
https://www.readbyqxmd.com/read/29157219/a-new-multiple-trauma-model-of-the-mouse
#12
Stefanie Fitschen-Oestern, Sebastian Lippross, Tim Klueter, Matthias Weuster, Deike Varoga, Mersedeh Tohidnezhad, Thomas Pufe, Stefan Rose-John, Hagen Andruszkow, Frank Hildebrand, Nadine Steubesand, Andreas Seekamp, Claudia Neunaber
BACKGROUND: Blunt trauma is the most frequent mechanism of injury in multiple trauma, commonly resulting from road traffic collisions or falls. Two of the most frequent injuries in patients with multiple trauma are chest trauma and extremity fracture. Several trauma mouse models combine chest trauma and head injury, but no trauma mouse model to date includes the combination of long bone fractures and chest trauma. Outcome is essentially determined by the combination of these injuries...
November 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29156999/risk-factors-for-intracranial-lesions-and-mortality-in-older-patients-with-mild-traumatic-brain-injuries
#13
Ma Angustias Ibañez Pérez De La Blanca, Enrique Fernández Mondéjar, Francisco Javier Gómez Jimènez, Jóse María Alonso Morales, Ma Dolores Quijano Lombardo, Juan Luis Viso Rodriguez
PRIMARY OBJECTIVE: To identify risk factors for intracerebral lesion (ICL) in older adults with mild traumatic brain injury (MTBI) and evaluate the influence of comorbidities on outcomes. RESEARCH DESIGN: Prospective cohort study. METHODS AND PROCEDURES: Information was gathered on clinical history/examination, cranial computed tomography, admission Glasgow Coma Scale (GCS) score, analytical and coagulation findings, and mortality at 1 week post-discharge...
November 20, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29156280/characteristics-and-health-risk-assessment-of-heavy-metals-exposure-via-household-dust-from-urban-area-in-chengdu-china
#14
Zhang Cheng, Liu-Jun Chen, Han-Han Li, Jian-Qing Lin, Zhan-Biao Yang, Yuan-Xiang Yang, Xiao-Xun Xu, Jun-Ren Xian, Ji-Rong Shao, Xue-Mei Zhu
To investigate the characteristics of heavy metals (Cr, Cd, Pb, Zn, Cu and Ni) in household dust in urban household environment of Chengdu, China, 90 household dust samples were collected from 6 districts of the city. The information of houses and residents were also recorded during dust sampling to identify the correlations between heavy metals in household dust and the house attributes. And also the principal component analysis and cluster analysis for sources and impactor factors. The concentrations of Pb (123mg·kg(-1)), Zn (675mg·kg(-1)), Cu (190mg·kg(-1)), Cr (82...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156268/use-of-a-handheld-low-cost-sensor-to-explore-the-effect-of-urban-design-features-on-local-scale-spatial-and-temporal-air-quality-variability
#15
Georgia Miskell, Jennifer A Salmond, David E Williams
Portable low-cost instruments have been validated and used to measure ambient nitrogen dioxide (NO2) at multiple sites over a small urban area with 20min time resolution. We use these results combined with land use regression (LUR) and rank correlation methods to explore the effects of traffic, urban design features, and local meteorology and atmosphere chemistry on small-scale spatio-temporal variations. We measured NO2 at 45 sites around the downtown area of Vancouver, BC, in spring 2016, and constructed four different models: i) a model based on averaging concentrations observed at each site over the whole measurement period, and separate temporal models for ii) morning, iii) midday, and iv) afternoon...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29154949/a-novel-microscopy-based-assay-identifies-extended-synaptotagmin-1-esyt1-as-a-positive-regulator-of-anoctamin-1-traffic
#16
Joana R Lérias, Madalena C Pinto, Hugo M Botelho, Nikhil T Awatade, Margarida C Quaresma, Iris A L Silva, Podchanart Wanitchakool, Rainer Schreiber, Rainer Pepperkok, Karl Kunzelmann, Margarida D Amaral
An attractive possibility to treat Cystic Fibrosis (CF), a severe condition caused by dysfunctional CFTR, an epithelial anion channel, is through the activation of alternative (non-CFTR) anion channels. Anoctamin 1 (ANO1) was demonstrated to be a Ca(2+)-activated chloride channel (CaCC) and thus of high potential to replace CFTR. Despite that ANO1 is expressed in human lung CF tissue, it is present at the cell surface at very low levels. In addition, little is known about regulation of ANO1 traffic, namely which factors promote its plasma membrane (PM) localization...
November 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29154119/a-conceptual-study-on-the-formulation-of-a-permeable-reactive-pavement-with-activated-carbon-additives-for-controlling-the-fate-of-non-point-source-environmental-organic-contaminants
#17
Shengyi Huang, Chenju Liang
To take advantage of the road pavement network where non-point source (NPS) pollution such as benzene, toluene, ethyl-benzene, and xylene (BTEX) from vehicle traffic exhaust via wet and dry atmospheric deposition occurs, the asphalt pavement may be used as a media to control the NPS pollution. An experiment to prepare an adsorptive porous reactive pavement (PRP) was initiated to explore the potential to reduce environmental NPS vehicle pollution. The PRP was prepared and studied as follows: various activated carbons (AC) were initially screened to determine if they were suitable as an additive in the porous asphalt mixture; various mixtures of a selected AC were incorporated with the design of porous asphalt concrete (PAC) to produce PRP, and the PRP formulations were tested to ensure that they comply with the required specifications; qualified specimens were subsequently tested to determine their adsorption capacity for BTEX in aqueous solution, as compared to conventional PAC...
November 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/29153449/the-changing-epidemiology-of-open-fractures-in-vehicle-occupants-pedestrians-motorcyclists-and-cyclists
#18
Dennis Winkler, Stuart T Goudie, Charles M Court-Brown
AIMS: To investigate the changing epidemiology of open fractures in vehicle occupants, pedestrians, motorcyclists and cyclists. MATERIALS AND METHODS: Data on all non-spinal open fractures admitted to the Royal Infirmary of Edinburgh after a road traffic accident between 1988 and 2010 were collected and analysed to provide information about the changing epidemiology in different patient groups. Demographic information was collected on all patients with the severity of injury being analysed with the Injury Severity Score (ISS), Musculoskeletal Index (MSI) and the number of open fractures...
November 14, 2017: Injury
https://www.readbyqxmd.com/read/29151184/analysis-of-an-optimal-public-transport-structure-under-a-carbon-emission-constraint-a-case-study-in-shanghai-china
#19
Linling Zhang, Ruyin Long, Hong Chen, Tong Yang
Along with the rapid development of the transportation industry, the problems of the energy crisis and transport emissions have become increasingly serious. The success of traffic emission reduction is related to the realization of global low-carbon goals. Placing priority on public transport is the internationally recognized traffic development model. This paper takes Shanghai, China, as an example to examine the optimal public transport structure. Five factors were selected from personal and public perspectives, including travel costs, crowding degree, occupied area, traffic emissions, and operating subsidies...
November 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29150077/unique-arginine-array-improves-cytosolic-localization-of-hydrocarbon-stapled-peptides
#20
Kim Quach, Jonathan LaRochelle, Xiao-Han Li, Elizabeth Rhoades, Alanna Schepartz
We have previously reported that miniature proteins containing a distinct array of 5 arginine residues on a folded α-helix - a penta-arg motif - traffic with high efficiency from endosomes into the cytosol and nucleus of mammalian cells. Here we evaluate whether a penta-arg motif can improve the intracellular trafficking of an otherwise impermeant hydrocarbon-stapled peptide, SAH-p53-4(Rho). We prepared a panel of SAH-p53-4(Rho) variants containing penta-arg sequences with different spacings and axial arrangement and evaluated their overall uptake (as judged by flow cytometry) and their intracellular access (as determined by fluorescence correlation spectroscopy, FCS)...
November 7, 2017: Bioorganic & Medicinal Chemistry
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