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https://www.readbyqxmd.com/read/28092599/wild-boars-sus-scrofa-as-bioindicators-of-environmental-levels-of-selenium-in-poland
#1
E Nowakowska, B Pilarczyk, R Pilarczyk, A Tomza-Marciniak, M Bąkowska, A Marciniak
The objective of the study was to determine selenium content in selected organs (liver, kidney) of wild boars from different regions of Poland. Materials for the study were obtained from 28 sites located in 16 provinces of Poland. Selenium concentrations in organs were determined using spectrofluorometric methods after wet mineralization in HNO3 and HClO4 mixture. Mean selenium concentrations in the investigated wild boars from Poland were 0.230 μg/g wet weight in the liver and 1.327 μg/g w.w. in the kidneys...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28089401/recycling-organic-wastes-to-agricultural-land-as-a-way-to-improve-its-quality-a-field-study-to-evaluate-benefits-and-risks
#2
P Alvarenga, P Palma, C Mourinha, M Farto, J Dôres, M Patanita, C Cunha-Queda, T Natal-da-Luz, M Renaud, J P Sousa
A field study was established to assess the effects of a sewage sludge (SS), a mixed municipal solid waste compost (MMSWC) and a compost produced from agricultural wastes (AWC), in a Vertisol, using Lolium multiflorum L. The amendments were applied for two consecutive years: 6, 12 and 24t dry matter ha(-1) for SS, and the amendment doses for MMSWC and AWC were calculated to deliver the same amount of organic matter (OM) per unit area. The amendments had significant beneficial effects on some soil properties (e...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28073813/association-between-the-healthy-eating-index-2010-and-nutrient-and-energy-densities-of-german-households-food-purchases
#3
Jonas Peltner, Silke Thiele
BACKGROUND: The USDA Healthy Eating Index (HEI) is used widely to measure diet quality because it allows a number of different applications. Although several evaluations of the HEI-2010 have already been carried out, there is lack of those which focus on associations between the HEI and nutrient intakes. This study updates and expands upon previous findings on these associations. METHODS: Using German consumption data, where ∼12 million purchases from 13 131 households are recorded, HEI-2010 total and individual scores, as well as several energy and nutrient densities were calculated...
January 9, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28073602/report-on-the-6th-international-festem-symposium-on-new-horizons-on-trace-elements-and-minerals-role-in-human-and-animal-health-catania-sicily-italy-may-26-28th-2016
#4
EDITORIAL
Paola Borella, Bernhard Michalke
No abstract text is available yet for this article.
December 19, 2016: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28070906/evolutionary-aspects-of-the-development-of-teeth-and-baleen-in-the-bowhead-whale
#5
J G M Thewissen, Tobin L Hieronymus, John C George, Robert Suydam, Raphaela Stimmelmayr, Denise McBurney
In utero, baleen whales initiate the development of several dozens of teeth in upper and lower jaws. These tooth germs reach the bell stage and are sometimes mineralized, but toward the end of prenatal life they are resorbed and no trace remains after birth. Around the time that the germs disappear, the keratinous baleen plates start to form in the upper jaw, and these form the food-collecting mechanism. Baleen whale ancestors had two generations of teeth and never developed baleen, and the prenatal teeth of modern fetuses are usually interpreted as an evolutionary leftover...
January 10, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28070864/factors-that-affect-the-content-of-cadmium-nickel-copper-and-zinc-in-tissues-of-the-knee-joint
#6
Wojciech Roczniak, Barbara Brodziak-Dopierała, Elżbieta Cipora, Agata Jakóbik-Kolon, Joanna Kluczka, Magdalena Babuśka-Roczniak
Osteoarthritis causes the degradation of the articular cartilage and periarticular bones. Trace elements influence the growth, development and condition of the bone tissue. Changes to the mineral composition of the bone tissue can cause degenerative changes and fractures. The aim of the research was to determine the content of cadmium (Cd), nickel (Ni), copper (Cu) and zinc (Zn) in the tibia, the femur and the meniscus in men and women who underwent a knee replacement surgery. Samples were collected from 50 patients, including 36 women and 14 men...
January 9, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28070312/investigation-of-nutritional-properties-of-three-species-of-marine-turban-snails-for-human-consumption
#7
Roslizawati Ab Lah, Joshua Smith, Dale Savins, Ashley Dowell, Daniel Bucher, Kirsten Benkendorff
Turban snails (family Turbinidae) are gastropod molluscs that are harvested for human consumption yet little is known about the nutritional properties of these snails, particularly from Australian waters. This study compares the proximate composition (ash, moisture, protein, and lipid content), fatty acid profiles, mineral, and trace element content of three species of turbinid snails; Turbo militaris, Lunella undulata, and Lunella torquata from northern New South Wales, Australia. They were all found to have relatively high protein in their flesh (16...
January 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28069103/does-cu-supplementation-affect-the-mechanical-and-structural-properties-and-mineral-content-of-red-deer-antler-bone-tissue
#8
P Gambín, M P Serrano, L Gallego, A García, J Cappelli, F Ceacero, T Landete-Castillejos
The main factors affecting the mechanical (and other) properties of bone, including antler, are the proportions of ash (especially Ca and P) and collagen content. However, some trace minerals may also play more important roles than would be expected, given their low levels in bone and antler. One such trace mineral is Cu. Here, we studied the effects of Cu supplementation on the mechanical and structural characteristics, and mineral content of antlers from yearling and adult (4 years of age) red deer fed a balanced diet...
January 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28054636/atomic-scale-chemical-tomography-of-human-bone
#9
Brian Langelier, Xiaoyue Wang, Kathryn Grandfield
Human bone is a complex hierarchical material. Understanding bone structure and its corresponding composition at the nanometer scale is critical for elucidating mechanisms of biomineralization under healthy and pathological states. However, the three-dimensional structure and chemical nature of bone remains largely unexplored at the nanometer scale due to the challenges associated with characterizing both the structural and chemical integrity of bone simultaneously. Here, we use correlative transmission electron microscopy and atom probe tomography for the first time, to our knowledge, to reveal structures in human bone at the atomic level...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28046179/bill-e-kunkle-interdisciplinary-beef-symposium-impact-of-mineral-and-vitamin-status-on-beef-cattle-immune-function-and-health
#10
E B Kegley, J J Ball, P A Beck
The importance of optimal mineral and vitamin nutrition on improving immune function and health has been recognized in the preceding decades. In the southeast, beef cattle are raised predominantly on forages that may be limiting in nutrients for optimal health, especially trace minerals such as Cu, Zn, and Se. Clinical deficiencies of these nutrients produce classic symptoms that are common to several nutrient deficiencies (e.g., slow growth and unthrifty appearance); however, subclinical deficiencies are more widespread and more difficult to detect, yet may result in broader economic losses...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28043121/anthropogenic-cycles-of-arsenic-in-mainland-china-1990-2010
#11
Ya-Lan Shi, Wei-Qiang Chen, Shi-Liang Wu, Yong-Guan Zhu
Arsenic (As) is a trace element in the global environment with toxicity to both humans and ecosystem. This study characterizes China's historical anthropogenic arsenic cycles (AACs) from 1990 to 2010. Key findings include the following: (1) the scale of China's AACs grew significantly during the studied period, making China the biggest miner, producer, and user of arsenic today; (2) the majority of arsenic flows into China's anthroposphere are the impurity of domestically mined nonferrous metal ores, which far exceeds domestic intentional demands; (3) China has been a net exporter of arsenic trioxide and arsenic metalloid, thus suffering from the environmental burdens of producing arsenic products for other economies; (4) the growth of arsenic use in China is driven by simultaneous increases in many applications including glass making, wood preservatives, batteries, semiconductors, and alloys, implying the challenge for regulating arsenic uses in multiple applications/industries at the same time; (5) the dissipative arsenic emissions resulting from intentional applications are at the same order of magnitude as atmospheric emissions from coal combustion, and their threats to human and ecosystem health can spread widely and last years to decades...
January 18, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28040251/geochemical-partitioning-of-lead-in-biogenic-carbonate-sediments-in-a-coral-reef-depositional-environment
#12
Guillermo Horta-Puga
The fate of trace elements in reef depositional environments has not been extensively investigated. The aim of this study was to determine the partitioning of Pb in sediments of the Veracruz Reef System, and its relation to local environmental sources. Lead was determined in four geochemical fractions: exchangeable (3.8±0.4μgg(-1)), carbonate (57.0±13.6μgg(-1)), organic matter (2.0±0.9μgg(-1)), and mineral (17.5±5.4μgg(-1)). For the mineral fraction, lead concentrations were higher in those reefs influenced by river discharge or by long-distance transport of terrigenous sediments...
December 28, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28011373/bioremediation-of-diuron-contaminated-soils-by-a-novel-degrading-microbial-consortium
#13
J Villaverde, M Rubio-Bellido, F Merchán, E Morillo
Diuron is a biologically active pollutant present in soil, water and sediments. It is persistent in soil, water and groundwater and slightly toxic to mammals and birds as well as moderately toxic to aquatic invertebrates. Its principal product of biodegradation, 3,4-dichloroaniline, exhibits a higher toxicity than diuron and is also persistent in the environment. On this basis, the objective of the study was to determine the potential capacity of a proposed novel diuron-degrading microbial consortium (DMC) for achieving not only diuron degradation, but its mineralisation both in solution as well as in soils with different properties...
March 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28008997/gas-entrapment-and-microbial-n2o-reduction-reduce-n2o-emissions-from-a-biochar-amended-sandy-clay-loam-soil
#14
Johannes Harter, Ivan Guzman-Bustamante, Stefanie Kuehfuss, Reiner Ruser, Reinhard Well, Oliver Spott, Andreas Kappler, Sebastian Behrens
Nitrous oxide (N2O) is a potent greenhouse gas that is produced during microbial nitrogen transformation processes such as nitrification and denitrification. Soils represent the largest sources of N2O emissions with nitrogen fertilizer application being the main driver of rising atmospheric N2O concentrations. Soil biochar amendment has been proposed as a promising tool to mitigate N2O emissions from soils. However, the underlying processes that cause N2O emission suppression in biochar-amended soils are still poorly understood...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28005159/determination-of-labile-species-of-as-v-ba-cd-co-cr-iii-cu-mn-ni-pb-sr-v-v-and-zn-in-natural-waters-using-diffusive-gradients-in-thin-film-dgt-devices-modified-with-montmorillonite
#15
Vanessa E Dos Anjos, Gilberto Abate, Marco T Grassi
A binding phase based on the clay mineral montmorillonite (MT) was used as a sorbent in this work, which employed diffusive gradients in thin-film (DGT) devices to determine the lability of trace elements in natural waters. Montmorillonite exhibits low cost, wide availability, ease of handling, high ion-exchange capacity, and reusability. As(V), Ba(2+), Cd(2+), Co(2+), Cr(III), Cu(2+), Mn(2+), Ni(2+), Pb(2+), Sr(2+), V(V), and Zn(2+) were quantitatively sorbed by MT and eluted with 1.0 mol L(-1) HNO3, which provided efficiency above 70% of recovery...
December 22, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27995157/dataset-on-elemental-concentration-and-group-identification-of-ancient-potteries-from-tamil-nadu-india
#16
A Chandrasekaran, A Naseerutheen, R Ravisankar
The dataset contains concentration of major and trace elements of ancient potteries from Tamilnadu and grouping different potteries from the statistical techniques of factor and cluster analysis (Figs. 2, 3 and 4). The major and trace elemental concentration data generated using energy dispersive X-ray fluorescence technique (EDXRF) and factor and cluster analysis data obtained using STATISTICA (10.0 version) software. The concentration of major and trace elements determines the type of clay minerals (Calcareous/Non-Calcareous and either low or high refractory) and firing atmosphere adopted by the artisans at the time of manufacture...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/27991953/barium-and-its-importance-as-an-indicator-of-paleo-productivity
#17
Bianca T P Liguori, Marcelo G DE Almeida, Carlos E DE Rezende
Barium (Ba) is a trace element which occurs predominantly as barite mineral (BaSO4) in the marine environment. Previous work suggests that barite concentrations are related to the organic carbon flux and marine biological debris in the water column suggesting a direct or indirect involvement in the marine biological cycling. In addition, barite has a high preservation rate (~30%) in sediments and it is less affected by early diagenesis than other proxies for productivity such as carbonates (~10%) and organic carbon (~1%), for example...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27988129/source-of-supplemental-dietary-copper-zinc-and-manganese-affects-fecal-microbial-relative-abundance-in-lactating-dairy-cows
#18
M J Faulkner, B A Wenner, L M Solden, W P Weiss
Appropriate trace mineral supplementation can improve immune response and hoof health in cattle and at much higher rates of supplementation to swine and poultry can alter microbial colonization of the gut, resulting in improved gut health. Diet can influence fecal microbial excretion in cattle, and the fecal microbiome may serve as a means for assessing gastrointestinal microbial changes. We hypothesized that feeding diets that differed in source of supplemental Cu, Zn, or Mn would alter the relative abundance of fecal microbes in lactating dairy cattle and that organic Zn would have the greatest effect...
December 14, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27986322/physiochemical-characteristics-of-aerosol-particles-in-the-typical-microenvironment-of-hospital-in-shanghai-china
#19
Rui Li, Hongbo Fu, Qingqing Hu, Chunlin Li, Liwu Zhang, Jianmin Chen, Abdel Wahid Mellouki
Health risk of populations dwelling in the hospital has been a global concern, but has not been adequately examined. PM2.5 and PM1 samples were collected in two indoor locations (outpatient department and inpatient department) and one outdoor location (courtyard) of the hospital in Shanghai. The concentrations of size-fractionated trace metals and the morphology of single particles were determined to accurately assess the health risk for populations in the hospital. The results indicated that the mean concentrations of PM2...
December 14, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27966928/arsenic-incorporation-in-pyrite-at-ambient-temperature-at-both-tetrahedral-s-i-and-octahedral-fe-ii-sites-evidence-from-exafs-dft-analysis
#20
Pierre Le Pape, Marc Blanchard, Jessica Brest, Jean-Claude Boulliard, Maya Ikogou, Lucie Stetten, Shuaitao Wang, Gautier Landrot, Guillaume Morin
Pyrite is a ubiquitous mineral in reducing environments and is well-known to incorporate trace elements such as Co, Ni, Se, Au, and commonly As. Indeed, As-bearing pyrite is observed in a wide variety of sedimentary environments, making it a major sink for this toxic metalloid. Based on the observation of natural hydrothermal pyrites, As(-I) is usually assigned to the occupation of tetrahedral S(-I) sites, with the same oxidation state as in arsenopyrite (FeAsS), although rare occurrences of As(III) and As(II) have been reported...
January 3, 2017: Environmental Science & Technology
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