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https://www.readbyqxmd.com/read/29352576/corrigendum-to-landscape-determinants-of-spatio-temporal-patterns-of-aerosol-optical-depth-in-the-two-most-polluted-metropolitans-in-the-united-states-sci-total-environ-609-2017-1556-1565
#1
Chenghao Wang, Chuyuan Wang, Soe W Myint, Zhi-Hua Wang
No abstract text is available yet for this article.
January 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29351590/characteristics-and-evolution-of-the-ecosystem-of-software-tools-supporting-research-in-molecular-biology
#2
Florencio Pazos, Monica Chagoyen
Daily work in molecular biology presently depends on a large number of computational tools. An in-depth, large-scale study of that 'ecosystem' of Web tools, its characteristics, interconnectivity, patterns of usage/citation, temporal evolution and rate of decay is crucial for understanding the forces that shape it and for informing initiatives aimed at its funding, long-term maintenance and improvement. In particular, the long-term maintenance of these tools is compromised because of their specific development model...
January 16, 2018: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/29350800/acquisition-remission-and-persistence-of-eczema-asthma-and-rhinitis-in-children
#3
Hongmei Zhang, Akhilesh Kaushal, Nelís Soto-Ramírez, Ali H Ziyab, Susan Ewart, John W Holloway, Wilfried Karmaus, Hasan Arshad
BACKGROUND: Allergic sensitization is associated with eczema, asthma, and rhinitis. However, it is unknown whether and how allergic sensitization is associated over time with acquisition, remission, and persistence of these diseases and their comorbidity. OBJECTIVE: To gain a better understanding of factors including allergic sensitization transitions that influence the temporal pattern of asthma, eczema, and rhinitis and their comorbidity during childhood. METHODS: In the Isle of Wight birth cohort information on allergic sensitization to common allergens was collected at ages 4, 10, and 18 years along with asthma, rhinitis, and eczema status determined by clinical diagnosis...
January 19, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29348548/the-global-epidemiology-of-bladder-cancer-a-joinpoint-regression-analysis-of-its-incidence-and-mortality-trends-and-projection
#4
Martin C S Wong, Franklin D H Fung, Colette Leung, Wilson W L Cheung, William B Goggins, C F Ng
We tested the hypotheses that the global incidence of bladder cancer was increasing but its mortality was reducing and its incidence was positively correlated with country-specific socioeconomic development. We retrieved data on age-standardized incidence and mortality rates/100,000 from the GLOBOCAN database in 2012. Temporal patterns were examined for 39 countries from the Cancer Incidence in Five Continents volumes I-X and other national registries. We evaluated the correlation between the incidence/mortality rates and Human Development Index (HDI)/ logarithmic values of Gross Domestic Product per capita (GDP)...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348141/cellulase-6-and-mannanase-7-affect-cell-differentiation-and-silique-dehiscence
#5
Hanjun He, Mei Bai, Panpan Tong, Yanting Hu, Ming Yang, Hong Wu
Cellulases, hemicellulases and pectinases play important roles in fruit development and maturation, but mutants with defects in the fruit have not been reported for cellulase or hemicellulase genes. Here we report the functional characterization of cellulase gene CEL6 and hemicellulase gene MAN7 in silique development and dehiscence in Arabidopsis. These genes were found to be expressed in vegetative and reproductive organs, and their expression in the silique partially depended on the IND and ALC transcriptional factors...
January 18, 2018: Plant Physiology
https://www.readbyqxmd.com/read/29346554/functional-roles-of-sex-biased-growth-hormone-regulated-micrornas-mir-1948-and-mir-802-in-young-adult-mouse-liver
#6
Pengying Hao, David J Waxman
Sex-specific temporal patterns of pituitary GH secretion determine the sex-biased transcription of hundreds of genes in the liver and impart significant sex differences in liver physiology, metabolism and disease. Sex differences in hepatic gene expression vary widely, ranging from <2-fold to >1,000-fold in the mouse. Here, we use small RNA sequencing to discover 24 sex-biased mouse liver miRNAs, and then investigate the roles of two of these miRNAs in GH-regulated liver sex differences. Studies in pre-pubertal and young adult mice, and in mice where pituitary hormones are ablated or where sex-specific hepatic GH signaling is dysregulated, demonstrated that the male-biased miR-1948 and the female-biased miR-802 are both regulated by sex-specific pituitary GH secretory patterns, acquire sex specificity at puberty, and are dependent on the GH-activated transcription factor STAT5 for their sex-specific expression...
January 16, 2018: Endocrinology
https://www.readbyqxmd.com/read/29342076/neuromorphic-vibrotactile-stimulation-of-fingertips-for-encoding-object-stiffness-in-telepresence-sensory-substitution-and-augmentation-applications
#7
Francesca Sorgini, Luca Massari, Jessica D'Abbraccio, Eduardo Palermo, Arianna Menciassi, Petar B Petrovic, Alberto Mazzoni, Maria Chiara Carrozza, Fiona N Newell, Calogero M Oddo
We present a tactile telepresence system for real-time transmission of information about object stiffness to the human fingertips. Experimental tests were performed across two laboratories (Italy and Ireland). In the Italian laboratory, a mechatronic sensing platform indented different rubber samples. Information about rubber stiffness was converted into on-off events using a neuronal spiking model and sent to a vibrotactile glove in the Irish laboratory. Participants discriminated the variation of the stiffness of stimuli according to a two-alternative forced choice protocol...
January 17, 2018: Sensors
https://www.readbyqxmd.com/read/29341457/different-effects-of-dexmedetomidine-and-midazolam-on-the-expression-of-nr2b-and-gabaa-%C3%AE-1-following-peripheral-nerve-injury-in-rats
#8
Jiayu Chen, Hanjun Li, Grewo Lim, Michael F McCabe, Wei Zhao, Yunli Yang, Weiqing Ma, Na Li
Neuropathic pain is a complex, chronic pain condition and the treatment is a major clinical challenge. Recent studies have shown that two FDA approved drugs dexmedetomidine (DEX) and midazolam (MZL), may be useful in treating neuropathic pain, but the mechanism is not fully dementated. Here, we investigated the effects and mechanisms of DEX and MZL treatment in the peripheral nerve injury model. Intramuscular injection with DEX and MZL attenuated the development of mechanical allodynia and thermal hyperalgesia in rats with chronic constriction injury (CCI)...
January 17, 2018: IUBMB Life
https://www.readbyqxmd.com/read/29339147/neural-signatures-for-active-maintenance-and-interference-during-working-memory-updating
#9
Adrià Vilà-Balló, Juha Salmi, Anna Soveri, Antoni Rodríguez-Fornells, Minna Lehtonen, Matti Laine
Although working memory (WM) is amongst the most studied neurocognitive functions, temporal patterns of its component processes are not fully understood. We examined the neural underpinnings of active maintenance and interference management in the n-back task by manipulating load (1-back vs 3-back) and including so-called lure stimuli. ERPs of 27 young adults revealed that the 1-back condition enabling active maintenance showed a positive slow wave (PSW) prior to the next stimulus (-600-0 ms) and augmented P2 (190-290 ms) and P3b (330-430 ms) responses after the stimulus appeared, albeit the latter effects were driven by the initial PSW...
January 12, 2018: Biological Psychology
https://www.readbyqxmd.com/read/29334525/temporal-patterns-of-exposure-to-asbestos-and-risk-of-asbestosis-an-analysis-of-a-cohort-of-asbestos-textile-workers
#10
Andrea Farioli, Francesco S Violante, Carlo La Vecchia, Eva Negri, Claudio Pelucchi, Giovanna Spatari, Paolo Boffetta, Enrico Pira
OBJECTIVE: The aim of the study was to assess the risk of asbestosis death based on the temporal pattern of exposure to asbestos. METHODS: We followed up a cohort of asbestos textile workers, employed in 1946 to 1984, until November 2013. We measured the duration of the employment, the time since last employment (TSLE), the age, and the year of first employment. Hazard ratios (HR) were estimated through multivariable Cox regression models. RESULTS: We observed 51 asbestosis deaths among 1823 workers...
January 12, 2018: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29333692/measuring-spatial-and-temporal-trends-of-nicotine-and-alcohol-consumption-in-australia-using-wastewater-based-epidemiology
#11
Foon Yin Lai, Coral Gartner, Wayne Hall, Steve Carter, Jake O'Brien, Benjamin J Tscharke, Frederic Been, Cobus Gerber, Jason White, Phong Thai, Raimondo Bruno, Jeremy Prichard, K Paul Kirkbride, Jochen F Mueller
BACKGROUND AND AIMS: Tobacco and alcohol consumption remain priority public health issues worldwide. As participation in population-based surveys has fallen, it is increasingly challenging to estimate accurately the prevalence of alcohol and tobacco use. Wastewater-based epidemiology (WBE) is an alternative approach for estimating substance use at the population level that does not rely on survey participation. This study examined spatio-temporal patterns in nicotine (a proxy for tobacco) and alcohol consumption in the Australian population via WBE...
January 14, 2018: Addiction
https://www.readbyqxmd.com/read/29333648/physical-and-social-contexts-of-physical-activity-behaviors-of-fifth-and-seventh-grade-youth
#12
Ruth P Saunders, Marsha Dowda, Kerry Mciver, Samantha M McDonald, Russell R Pate
BACKGROUND: The purpose of this study was to characterize the temporal, social, and physical contexts for physical activities commonly reported in a diverse cohort of 753 boys and girls from fifth to seventh grade. METHODS: Data were obtained from a multilevel longitudinal study, the Transitions and Activity Changes in Kids. The Physical Activity Choices instrument assessed previous 5-day participation in specific physical activities and their temporal, social, and physical contexts...
February 2018: Journal of School Health
https://www.readbyqxmd.com/read/29333080/comparisons-of-traffic-related-ultrafine-particle-number-concentrations-measured-in-two-urban-areas-by-central-residential-and-mobile-monitoring
#13
Matthew C Simon, Neelakshi Hudda, Elena N Naumova, Jonathan I Levy, Doug Brugge, John L Durant
Traffic-related ultrafine particles (UFP; <100 nanometers diameter) are ubiquitous in urban air. While studies have shown that UFP are toxic, epidemiological evidence of health effects, which is needed to inform risk assessment at the population scale, is limited due to challenges of accurately estimating UFP exposures. Epidemiologic studies often use empirical models to estimate UFP exposures; however, the monitoring strategies upon which the models are based have varied between studies. Our study compares particle number concentrations (PNC; a proxy for UFP) measured by three different monitoring approaches (central-site, short-term residential-site, and mobile on-road monitoring) in two study areas in metropolitan Boston (MA, USA)...
November 2017: Atmospheric Environment
https://www.readbyqxmd.com/read/29331863/airborne-volatile-aromatic-hydrocarbons-at-an-urban-monitoring-station-in-korea-from-2013-to-2015
#14
Azmatullah Khan, Jan E Szulejko, Ki-Hyun Kim, Richard J C Brown
The concentrations of C6-C10 volatile aromatic hydrocarbons (AHCs) in air were measured at an urban air quality monitoring station in Jong-Ro, Seoul, Korea, between 2013 and 2015. Their temporal patterns (e.g., diurnal, intraweek, daily) were assessed individually and collectively as groups of benzene, toluene, ethylbenzene, styrene, and xylene (BTESX); total aliphatic hydrocarbon (TALHC: C2-C12); total aromatic hydrocarbon (TARHC: C6-C10); and total hydrocarbon (THC: C2-C12). The highest mean AHC concentrations over the 3-year study (in ppb (v/v)) were observed for toluene (6...
January 11, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29324402/c-fscv-compressive-fast-scan-cyclic-voltammetry-for-brain-dopamine-recording
#15
Hossein Zamani, Hamid Reza Bahrami, Preeti Chalwadi, Paul A Garris, Pedram Mohseni
This paper presents a novel compressive sensing framework for recording brain dopamine levels with fast-scan cyclic voltammetry (FSCV) at a carbon-fiber microelectrode. Termed compressive FSCV (C-FSCV), this approach compressively samples the measured total current in each FSCV scan and performs basic FSCV processing steps, e.g., background current averaging and subtraction, directly with compressed measurements. The resulting background-subtracted faradaic currents, which are shown to have a block-sparse representation in the discrete cosine transform domain, are next reconstructed from their compressively sampled counterparts with the block sparse Bayesian learning algorithm...
January 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/29322616/development-of-methods-and-feasibility-of-using-hyperpolarized-carbon-13-imaging-data-for-evaluating-brain-metabolism-in-patient-studies
#16
Ilwoo Park, Peder E Z Larson, Jeremy W Gordon, Lucas Carvajal, Hsin-Yu Chen, Robert Bok, Mark Van Criekinge, Marcus Ferrone, James B Slater, Duan Xu, John Kurhanewicz, Daniel B Vigneron, Susan Chang, Sarah J Nelson
PURPOSE: Hyperpolarized carbon-13 (13 C) metabolic imaging is a noninvasive imaging modality for evaluating real-time metabolism. The purpose of this study was to develop and implement experimental strategies for using [1-13 C]pyruvate to probe in vivo metabolism for patients with brain tumors and other neurological diseases. METHODS: The 13 C radiofrequency coils and pulse sequences were tested in a phantom and were performed using a 3 Tesla whole-body scanner...
January 10, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29321916/a-spatiotemporal-analysis-of-acoustic-interactions-between-great-reed-warblers-acrocephalus-arundinaceus-using-microphone-arrays-and-robot-audition-software-hark
#17
Reiji Suzuki, Shiho Matsubayashi, Fumiyuki Saito, Tatsuyoshi Murate, Tomohisa Masuda, Koichi Yamamoto, Ryosuke Kojima, Kazuhiro Nakadai, Hiroshi G Okuno
Acoustic interactions are important for understanding intra- and interspecific communication in songbird communities from the viewpoint of soundscape ecology. It has been suggested that birds may divide up sound space to increase communication efficiency in such a manner that they tend to avoid overlap with other birds when they sing. We are interested in clarifying the dynamics underlying the process as an example of complex systems based on short-term behavioral plasticity. However, it is very problematic to manually collect spatiotemporal patterns of acoustic events in natural habitats using data derived from a standard single-channel recording of several species singing simultaneously...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29321376/retinal-de-novo-lipogenesis-coordinates-neurotrophic-signaling-to-maintain-vision
#18
Rithwick Rajagopal, Sheng Zhang, Xiaochao Wei, Teresa Doggett, Sangeeta Adak, Jennifer Enright, Vaishali Shah, Guoyu Ling, Shiming Chen, Jun Yoshino, Fong-Fu Hsu, Clay F Semenkovich
Membrane lipid composition is central to the highly specialized functions of neurological tissues. In the retina, abnormal lipid metabolism causes severe forms of blindness, often through poorly understood neuronal cell death. Here, we demonstrate that deleting the de novo lipogenic enzyme fatty acid synthase (FAS) from the neural retina, but not the vascular retina, results in progressive neurodegeneration and blindness with a temporal pattern resembling rodent models of retinitis pigmentosa. Blindness was not rescued by protection from light-evoked activity; by eating a diet enriched in palmitate, the product of the FAS reaction; or by treatment with the PPARα agonist fenofibrate...
January 11, 2018: JCI Insight
https://www.readbyqxmd.com/read/29317508/spatiotemporally-heterogeneous-population-dynamics-of-gut-bacteria-inferred-from-fecal-time-series-data
#19
Hidetoshi Inamine, Stephen P Ellner, Peter D Newell, Yuan Luo, Nicolas Buchon, Angela E Douglas
A priority in gut microbiome research is to develop methods to investigate ecological processes shaping microbial populations in the host from readily accessible data, such as fecal samples. Here, we demonstrate that these processes can be inferred from the proportion of ingested microorganisms that is egested and their egestion time distribution, by using general mathematical models that link within-host processes to statistics from fecal time series. We apply this framework to Drosophila melanogaster and its gut bacterium Acetobacter tropicalis Specifically, we investigate changes in their interactions following ingestion of a food bolus containing bacteria in a set of treatments varying the following key parameters: the density of exogenous bacteria ingested by the flies (low/high) and the association status of the host (axenic or monoassociated with A...
January 9, 2018: MBio
https://www.readbyqxmd.com/read/29315347/long-term-ethanol-exposure-temporal-pattern-of-microrna-expression-and-associated-mrna-gene-networks-in-mouse-brain
#20
Elizabeth A Osterndorff-Kahanek, Gayatri R Tiwari, Marcelo F Lopez, Howard C Becker, R Adron Harris, R Dayne Mayfield
Long-term alcohol use can result in lasting changes in brain function, ultimately leading to alcohol dependence. These functional alterations arise from dysregulation of complex gene networks, and growing evidence implicates microRNAs as key regulators of these networks. We examined time- and brain region-dependent changes in microRNA expression after chronic intermittent ethanol (CIE) exposure in C57BL/6J mice. Animals were sacrificed at 0, 8, and 120h following the last exposure to four weekly cycles of CIE vapor and we measured microRNA expression in prefrontal cortex (PFC), nucleus accumbens (NAC), and amygdala (AMY)...
2018: PloS One
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