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https://www.readbyqxmd.com/read/28441630/winter-to-summer-change-in-vitamin-d-status-reduces-systemic-inflammation-and-bioenergetic-activity-of-human-peripheral-blood-mononuclear-cells
#1
Emily K Calton, Kevin N Keane, Raquel Raizel, Jordan Rowlands, Mario J Soares, Philip Newsholme
BACKGROUND: Vitamin D status [25(OH)D] has recently been reported to be associated with altered cellular bioenergetic profiles of peripheral blood mononuclear cells (PBMCs). No study has tracked the seasonal variation of 25(OH)D and its putative influence on whole body energy metabolism, cellular bioenergetic profiles, inflammatory markers and clinical chemistry. MATERIAL AND METHODS: Whole body energy metabolism and substrate utilisation were measured by indirect calorimetry...
April 13, 2017: Redox Biology
https://www.readbyqxmd.com/read/28440628/edaphic-conditions-regulate-denitrification-directly-and-indirectly-by-altering-denitrifier-abundance-in-wetlands-along-the-han-river-china
#2
Ziqian Xiong, Laodong Guo, Quanfa Zhang, Guihua Liu, Wenzhi Liu
Riparian wetlands play a critical role in retaining nitrogen (N) from upland runoff and improving river water quality, mainly through biological processes such as soil denitrification. However, the relative contribution of abiotic and biotic factors to riparian denitrification capacity remains elusive. Here we report the spatio-temporal dynamics of potential and unamended soil denitrification rates in 20 wetlands along the Han River, an important water source in central China. We also quantified the abundance of soil denitrifying microorganisms using nirK and nirS genes...
April 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28440082/metro-commuter-exposures-to-particulate-air-pollution-and-pm2-5-associated-elements-in-three-canadian-cities-the-urban-transportation-exposure-study
#3
Keith Van Ryswyk, Angelos T Anastasopolos, Greg Evans, Liu Sun, Kelly Sabaliauskas, Ryan Kulka, Lance Wallace, Scott Weichenthal
System-representative commuter air pollution exposure data were collected for the metro systems of Toronto, Montreal, and Vancouver, Canada. Pollutants measured included PM2.5 (PM = particulate matter), PM10, ultrafine particles, black carbon, and the elemental composition of PM2.5. Sampling over three weeks was conducted in summer and winter for each city and covered each system on a daily basis. Mixed-effect linear regression models were used to identify system features related to particulate exposures. Ambient levels of PM2...
April 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28439804/statistical-analysis-of-arsenic-contamination-in-drinking-water-in-a-city-of-iran-and-its-modeling-using-gis
#4
Fatemeh Sadeghi, Simin Nasseri, Mohammad Mosaferi, Ramin Nabizadeh, Masud Yunesian, Alireza Mesdaghinia
In this research, probable arsenic contamination in drinking water in the city of Ardabil was studied in 163 samples during four seasons. In each season, sampling was carried out randomly in the study area. Results were analyzed statistically applying SPSS 19 software, and the data was also modeled by Arc GIS 10.1 software. The maximum permissible arsenic concentration in drinking water defined by the World Health Organization and Iranian national standard is 10 μg/L. Statistical analysis showed 75, 88, 47, and 69% of samples in autumn, winter, spring, and summer, respectively, had concentrations higher than the national standard...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28439785/influence-of-environmental-conditions-on-norovirus-presence-in-mussels-harvested-in-montenegro
#5
Nevena Ilic, Branko Velebit, Vlado Teodorovic, Vesna Djordjevic, Nedjeljko Karabasil, Dragan Vasilev, Spomenka Djuric, Bojan Adzic, Mirjana Dimitrijevic
This study comprises the first systematic survey of the occurrence of Norovirus in Mediterranean mussels from harvesting areas in Montenegro coast of Adriatic Sea. Mussels may accumulate contaminants of public health concern, including pathogenic bacteria and viruses. Microbiological monitoring of harvesting areas is based on count of Escherichia coli in bivalve molluscs in the European Union. It is assumed that E. coli does not reflect contamination with enteric viruses. A structured field study was undertaken at six locations in Bay of Kotor, Montenegro, in order to investigate plausible influence of environmental factors on the variability of E...
April 24, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28439746/plasma-phosphatidylethanolamine-and-triacylglycerol-fatty-acid-concentrations-are-altered-in-major-depressive-disorder-patients-with-seasonal-pattern
#6
Yurika Otoki, Marie Hennebelle, Anthony J Levitt, Kiyotaka Nakagawa, Walter Swardfager, Ameer Y Taha
Disturbances in peripheral and brain lipid metabolism, including the omega-3 fatty acid docosahexaenoic acid (DHA), have been reported in major depressive disorder (MDD). However, these changes have yet to be confirmed in MDD with seasonal pattern (MDD-s), a subtype of recurrent MDD. The present exploratory study quantified plasma plasmalogen and diacyl-phospholipid species, and fatty acids within total phospholipids, cholesteryl esters, triacylglycerols and free fatty acids in non-medicated MDD-s participants (n = 9) during euthymia in summer or fall, and during depression in winter in order to screen for potential high sensitivity lipid biomarkers...
April 24, 2017: Lipids
https://www.readbyqxmd.com/read/28439297/the-influence-of-day-night-cycles-on-biomass-yield-and-composition-of-neochloris-oleoabundans
#7
Lenneke de Winter, Iago Teles Dominguez Cabanelas, Dirk E Martens, René H Wijffels, Maria J Barbosa
BACKGROUND: Day/night cycles regulate the circadian clock of organisms to program daily activities. Many species of microalgae have a synchronized cell division when grown under a day/night cycle, and synchronization might influence biomass yield and composition. Therefore, the aim of this study was to study the influence of day/night cycle on biomass yield and composition of the green microalgae Neochloris oleoabundans. Hence, we compared continuous turbidostat cultures grown under continuous light with cultures grown under simulated day/night cycles...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28438670/epidemiological-features-and-genetic-characterization-of-virus-strains-in-rotavirus-associated-gastroenteritis-in-children-of-odisha-in-eastern-india
#8
Eileena Mohanty, Bhagirathi Dwibedi, S K Kar, A S Acharya
We have studied the clinical characteristics, severity and seasonality of rotavirus infection and prevalent genotypes in 652 non-rota vaccinated children in Odisha in eastern India. P genotypes were analysed for their association with host blood group antigens. P type of the virus is determined by the VP8* gene, and specific recognition of A - type of Histo - blood group antigen by P[14]VP8* has been reported. VP4, VP7 and VP6 genes of commonly identified G1P[8] strain were compared with genes of the same strain isolated from other parts of India, elsewhere and strains used for Rotarix and Rotateq vaccines...
April 21, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28437775/effect-of-nitrification-inhibitors-on-mitigating-n2o-and-no-emissions-from-an-agricultural-field-under-drip-fertigation-in-the-north-china-plain
#9
Di Tian, Yuanyuan Zhang, Yizhen Zhou, Yujing Mu, Junfeng Liu, Chenglong Zhang, Pengfei Liu
N2O and NO emissions from a winter wheat-summer maize rotation field with five different treatments in the North China Plain (NCP) were comparably investigated from 8 October 2014 to 11 October 2015. Compared with the treatments with only flood or drip irrigation, evident emission peaks of N2O and NO from the fertilization treatments with flood irrigation (A-Flood) and with drip fertigation (A-Drip) were observed after each fertilization event, whereas their emissions from the fertilization treatments with nitrification inhibitors under drip fertigation (A+DCD-Drip and A+Nitrapyrin-Drip) were greatly suppressed...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437747/concurrent-evaluation-of-personal-damaging-and-beneficial-uv-exposures-over-an-extended-period
#10
L K Wainwright, A V Parisi, N J Downs
Personal exposure to solar ultraviolet radiation (UVR) is acknowledged as having both positive and negative effects on human health. This study aimed to measure concurrently the personal erythemal UV, UVA and vitamin D effective exposures of participants in each season of a year. Participants were all indoor office workers located at two different sites less than 6.5 km apart at the sub-tropical location of Toowoomba (27°33'S 151°55'E). The subjects wore a combined dosimeter badge horizontally on the shoulder for a minimum of one week in each season; this badge used 8-methoxypsoralen film to record the UVA waveband and polyphenylene oxide film for the erythemal and the vitamin D effective UV wavebands...
April 13, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28437650/indoor-to-outdoor-relationship-of-aerosol-particles-inside-a-naturally-ventilated-apartment-a-comparison-between-single-parameter-analysis-and-indoor-aerosol-model-simulation
#11
Tareq Hussein
The indoor-to-outdoor relationship of aerosol particles is affected by several mechanisms including penetration, ventilation rate, dry deposition rate and sources. Understanding the effect of these factors is essential for a deeper knowledge of the indoor-to-outdoor relationship. In real-life conditions, it is difficult to analyze these factors in a naturally ventilated environment. In this study, a naturally ventilated and an occupied apartment was used to investigate the indoor-to-outdoor relationship of aerosol particles by applying two different techniques; single-parameter analysis and indoor aerosol model simulation...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437435/infective-respiratory-syncytial-virus-is-present-in-human-cord-blood-samples-and-most-prevalent-during-winter-months
#12
Angela Mary Fonceca, Abha Chopra, Avram Levy, Paul Stanton Noakes, Matthew Wee-Peng Poh, Natasha Leanne Bear, Susan Prescott, Mark Lloyd Everard
BACKGROUND: Human respiratory syncytial virus (RSV) remains the most common cause of severe lower respiratory tract disease amongst infants, and continues to cause annual epidemics of respiratory disease every winter worldwide. Demonstrating placental transmission of viable RSV in human samples is a major paradigm shift in respiratory routes considered likely for RSV transmission. METHODS: Droplet digital PCR (ddPCR) was used to identify RSV present in cord blood mononucleocytes (CBM)...
2017: PloS One
https://www.readbyqxmd.com/read/28437393/protein-degradation-dcafinating-splicing
#13
Georg E Winter
No abstract text is available yet for this article.
April 24, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28437174/more-than-fever-thermoregulatory-responses-to-immunological-stimulation-and-consequences-of-thermoregulatory-strategy-on-innate-immunity-in-gopher-tortoises-gopherus-polyphemus
#14
Jeffrey M Goessling, Craig Guyer, Mary T Mendonça
Organisms possess a range of thermoregulatory strategies that may vary in response to sickness, thereby driving important life-history consequences. Because the immune system is vital to maintaining organism function, understanding the suite of immune responses to infection indicates basic costs and benefits of physiological strategies. Here, we assessed consequences of thermoregulation and seasonality on immune function in both immunologically stimulated and nonstimulated gopher tortoises (Gopherus polyphemus)...
July 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28437078/a-step-towards-high-energy-silicon-based-thin-film-lithium-ion-batteries
#15
Antonia Reyes Jiménez, Richard Klöpsch, Ralf Wagner, Uta C Rodehorst, Martin Kolek, Roman Nölle, Martin Winter, Tobias Placke
The next generation of lithium ion batteries (LIBs) with increased energy density for large-scale applications, such as electric mobility, but also for small electronic devices, e.g. micro-batteries and on-chip batteries, requires advanced electrode active materials with enhanced specific and volumetric capacities. In this regard, silicon (Si) as anode material has attracted much attention due to its high specific capacity. However, the enormous volume changes during lithiation/de-lithiation are still a main obstacle avoiding the broad commercial use of Si-based electrodes...
April 24, 2017: ACS Nano
https://www.readbyqxmd.com/read/28436922/the-feasibility-of-manual-parameter-tuning-for-deformable-breast-mr-image-registration-from-a-multi-objective-optimization-perspective
#16
Kleopatra Pirpinia, Peter Bosman, Claudette Loo, Gonneke Winter-Warnars, Natasja Janssen, Astrid Scholten, Jan-Jakob Sonke, Marcel van Herk, Tanja Alderliesten
Deformable image registration is typically formulated as an optimization problem involving a linearly weighted combination of terms that correspond to objectives of interest (e.g., similarity, deformation magnitude). The weights, along with multiple other parameters, need to be manually tuned for each application, a task currently mainly addressed via trial-and-error approaches. Such approaches can only be successful if there is a sensible interplay between parameters, objectives, and desired registration outcome...
April 24, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28436663/introducing-ionic-current-detection-for-x-ray-absorption-spectroscopy-in-liquid-cells
#17
Daniela Schön, Jie Xiao, Ronny Golnak, Marc F Tesch, Bernd Winter, Juan-Jesus Velasco-Velez, Emad F Aziz
Photons and electrons are two common relaxation products upon X-ray absorption, enabling fluorescence yield and electron yield detections for X-ray absorption spectroscopy (XAS). The ions that are created during the electron yield process are relaxation products too, which are exploited in this study to produce ion yield for XA detection. The ionic currents measured in a liquid cell filled with water or iron(III) nitrate aqueous solutions exhibit characteristic O K-edge and Fe L-edge absorption profiles as a function of excitation energy...
April 25, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28436394/sarcomere-dysfunction-in-nemaline-myopathy
#18
Josine M de Winter, Coen A C Ottenheijm
Nemaline myopathy (NM) is among the most common non-dystrophic congenital myopathies (incidence 1:50.000). Hallmark features of NM are skeletal muscle weakness and the presence of nemaline bodies in the muscle fiber. The clinical phenotype of NM patients is quite diverse, ranging from neonatal death to normal lifespan with almost normal motor function. As the respiratory muscles are involved as well, severely affected patients are ventilator-dependent. The mechanisms underlying muscle weakness in NM are currently poorly understood...
April 19, 2017: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/28436172/indaziflam-a-new-cellulose-biosynthesis-inhibiting-herbicide-provides-long-term-control-of-invasive-winter-annual-grasses
#19
Derek J Sebastian, Margaret B Fleming, Eric L Patterson, James R Sebastian, Scott J Nissen
BACKGROUND: Indaziflam (Esplanade™, Bayer CropScience) is a cellulose biosynthesis inhibiting (CBI) herbicide that is a unique mode of action for resistance management and has broad spectrum activity at low application rates. This research further explores indaziflam's activity on monocotyledons and dicotyledons, and evaluates indaziflam's potential for restoring non-crop sites infested with invasive winter annual grasses. RESULTS: Treated Arabidopsis, downy brome, feral rye, and kochia were all susceptible to indaziflam in a dose-dependent manner...
April 24, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28435486/prevalence-of-homelessness-in-the-emergency-department-setting
#20
Brett J Feldman, Cristina G Calogero, Kareem S Elsayed, Osman Z Abbasi, Joshua Enyart, Timothy J Friel, Yasir H Abunamous, Stephen W Dusza, Marna Rayl Greenberg
INTRODUCTION: According to the National Alliance to End Homelessness, the national rate of homelessness has been cited as 17.7 homeless people/10,000 people in the general population, and 24.8 homeless veterans/10,000 veterans in the general population. However, it is unknown what the prevalence of homelessness is in the emergency department (ED) setting. We set out to determine the prevalence of homelessness or at risk for homelessness in the ED setting. METHODS: Using a five-question screening tool derived from the U...
April 2017: Western Journal of Emergency Medicine
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