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Trace minerals

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https://www.readbyqxmd.com/read/28219956/mineral-status-in-canine-medial-coronoid-process-disease-a-cohort-study-using-analysis-of-hair-by-mass-spectrometry
#1
M Davies, J West, C Williams, D S Gardner
In several species, developmental skeletal diseases involving abnormal endochondral ossification have been associated with imbalanced mineral intake. Hair analysis reflects long-term mineral status. To determine the mineral content of hair from dogs with or without medial coronoid process disease (MCPD). Dogs with MCPD have a different profile of minerals known to influence metalloenzymes involved in endochondral ossification. After cleansing, chelation and acid digestion of hair samples (n=79 in total: control dogs, n=70 v MCPD, n=9), mineral profile (7 major and 25 trace elements) was determined by inductively coupled plasma-mass spectrometry...
February 20, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28219952/enthesis-regeneration-a-role-for-gli1-progenitor-cells
#2
Andrea G Schwartz, Leesa M Galatz, Stavros Thomopoulos
The tendon enthesis originates from a specific pool of hedgehog-active Gli1+ progenitor cells that differentiate and produce mineralized fibrocartilage. The current study investigated the regenerative capacity of this cell population by comparing the responses of early postnatal and mature entheses to injury. Lineage tracing studies demonstrated that the original Gli1+ cell population had the capacity to heal immature entheses after injury but this capacity was lost after the cells differentiated into mature fibrochondrocytes...
February 20, 2017: Development
https://www.readbyqxmd.com/read/28213031/antimicrobial-resistance-and-its-association-with-tolerance-to-heavy-metals-in-agriculture-production
#3
REVIEW
Zhongyi Yu, Lynda Gunn, Patrick Wall, Séamus Fanning
Antimicrobial resistance is a recognized public health challenge that since its emergence limits the therapeutic options available to veterinarians and clinicians alike, when treatment is warranted. This development is further compounded by the paucity of new antibiotics. The agri-food industry benefits from the availability of antimicrobial compounds for food-animal production and crop protection. Nonetheless, their improper use can result in the selection for bacteria that are phenotypically resistant to these compounds...
June 2017: Food Microbiology
https://www.readbyqxmd.com/read/28202241/geochemical-and-mineralogical-characterization-of-sulfur-and-iron-in-coal-waste-rock-elk-valley-british-columbia-canada
#4
Joseph Essilfie-Dughan, M Jim Hendry, James J Dynes, Yongfeng Hu, Ashis Biswas, S Lee Barbour, S Day
Exposure of coal waste rock to atmospheric oxygen can result in the oxidation of sulfide minerals and the release of sulfate (SO4(2-)) and associated trace elements (e.g., Se, As, Cd, and Zn) to groundwaters and surface waters. Similarly, reduced iron minerals such as siderite, ankerite, and the sulfide, pyrite, present in the waste rock can also undergo oxidation, resulting in the formation of iron oxyhydroxides that can adsorb trace elements released from the oxidation of the sulfide minerals. Characterization and quantification of the distribution of sulfide and iron minerals, their oxidation products, as well as leaching rates are critical to assessing present-day and future impacts of SO4(2-) and associated trace elements on receiving waters...
February 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28195711/impact-of-mn-ii-manganese-oxide-reactions-on-ni-and-zn-speciation
#5
Margaret A G Hinkle, Katherine G Dye, Jeffrey G Catalano
Layered Mn oxide minerals (phyllomanganates) often control trace metal fate in natural systems. The strong uptake of metals such as Ni and Zn by phyllomanganates results from adsorption on or incorporation into vacancy sites. Mn(II) also binds to vacancies and subsequent comproportionation with structural Mn(IV) may alter sheet structures by forming larger and distorted Mn(III)O6 octahedra. Such Mn(II)-phyllomanganate reactions may thus alter metal uptake by blocking key reactive sites. Here we investigate the effect of Mn(II) on Ni and Zn binding to phyllomanganates of varying initial vacancy content (δ-MnO2, hexagonal birnessite, and triclinic birnessite) at pH 4 and 7 under anaerobic conditions...
February 14, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28194267/retinol-%C3%AE-tocopherol-and-selected-minerals-in-breast-milk-of-lactating-women-with-full-term-infants-in-south-korea
#6
Hyesook Kim, Byung-Mun Jung, Bum-Noh Lee, Yun-Je Kim, Ji A Jung, Namsoo Chang
BACKGROUND/OBJECTIVES: This study was performed to measure fat-soluble vitamins and minerals in breast milk of Korean lactating mothers who exclusively breastfed their babies. SUBJECTS/METHODS: Breast milk samples were collected from 334 mothers. Concentrations of retinol and α-tocopherol were analyzed by high performance liquid chromatography ultraviolet spectrometry while concentrations of minerals were measured by inductively coupled plasma optical emission spectrometry...
February 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28183061/trace-elements-in-oceanic-pelagic-communities-in-the-western-indian-ocean
#7
Nathalie Bodin, Dora Lesperance, Rona Albert, Stephanie Hollanda, Philippe Michaud, Maxime Degroote, Carine Churlaud, Paco Bustamante
The mineral composition of target and non-target pelagic fish caught by purse-seiners and longliners in the western-central Indian Ocean was determined. From the 10 essential elements analysed, selenium and zinc showed the highest concentrations in swordfish and blue marlin while Indian mackerel appeared as a good source of copper, iron and chrome. All catch had levels of lead and cadmium, two toxic elements, below the maximum sanitary limits. Although some concerns were raised regarding mercury concentrations in the largest species (wahoo, swordfish and blue marlin), molar ratios of mercury and selenium indicate that all oceanic pelagic fish from the western-central Indian Ocean are safe for human consumption...
January 21, 2017: Chemosphere
https://www.readbyqxmd.com/read/28175063/p237-hair-mineral-and-trace-element-contents-as-reliable-markers-of-nutritional-status-compared-to-serum-levels-in-children-with-inflammatory-bowel-disease
#8
H R Yang, J M Cho
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28171220/prevention-of-nitrosative-stress-by-a-nutritional-supplement-lavita%C3%A2-a-randomized-placebo-controlled-double-blind-clinical-trial-with-healthy-volunteers
#9
(no author information available yet)
BACKGROUND: A common pathomechanism involved in many degenerative manifestations of non-communicable diseases is nitrosative stress, giving rise to a chronic insidious inflammation causing silent inflammation at a cellular level. The release of nitric oxide inhibits multiple enzyme reactions with reduced oxidative phosphorylation and mitochondrial ATP depletion. MATERIAL AND METHODS: We hypothesized that enzyme-inhibition can be alleviated by micronutrient supply, and studied laboratory parameters associated with nitrosative stress (nitrotyrosine, mitochondrial activity) after a micronutrient supplementation (a multivitamin mineral and trace element formulation as verum: LaVita®) and a placebo in healthy volunteers (n=150) for six months...
October 8, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28165773/greenhouse-gas-emissions-from-a-cu-contaminated-soil-remediated-by-in-situ-stabilization-and-phytomanaged-by-a-mixed-stand-of-poplar-willows-and-false-indigo-bush
#10
M Šimek, D Elhottová, M Mench, L Giagnoni, P Nannipieri, G Renella
Phytomanagement of trace element-contaminated soils can reduce the soil toxicity and restore the soil ecological functions, including the soil gas exchange with the atmosphere. We studied the emission rate of the greenhouse gases (GHG) CO2, CH4 and N2O, and the potential CH4 oxidation, denitrification activity (DEA) and glucose mineralization of a Cu-contaminated soil amended with dolomitic limestone and compost, alone or in combination, after a 2 year-phytomanagement with a mixed stand of Populus nigra, Salix viminalis, S...
February 6, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28161887/evaluation-of-vitamin-and-trace-element-requirements-after-sleeve-gastrectomy-at-long-term
#11
Silvia Pellitero, Eva Martínez, Rocío Puig, Alba Leis, Roxanna Zavala, María Luisa Granada, Cruz Pastor, Pau Moreno, Jordi Tarascó, Manel Puig-Domingo
BACKGROUND: Nutritional deficiencies are common after bariatric surgery, but data are scarce after sleeve gastrectomy (SG) at long term. METHODS: We performed a prospective nutritional status evaluation before and at 2 and 5 years after SG in morbid obese patients receiving mulvitamin and mineral supplementation at a Spanish university hospital. One hundred seventy-six patients (49.3 ± 9.1 years and 46.7 ± 7.4 kg/m(2)) were evaluated; 51 of them were followed during 5 years...
February 4, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28159791/microaerophilic-fe-ii-oxidizing-zetaproteobacteria-isolated-from-low-fe-marine-coastal-sediments-physiology-and-characterization-of-their-twisted-stalks
#12
K Laufer, M Nordhoff, M Halama, R E Martinez, M Obst, M Nowak, H Stryhanyuk, H H Richnow, A Kappler
: Microaerophilic Fe(II)-oxidizers are commonly found in habitats containing elevated Fe(II) and low O2 concentrations and often produce characteristic Fe mineral structures, so-called twisted stalks or tubular sheaths. Isolates originating from freshwater habitats are all members of the Betaproteobacteria, while isolates from marine habitats belong almost exclusively to the Zetaproteobacteria So far only few isolates of marine microaerophilic Fe(II)-oxidizers have been described, all of which are obligate microaerophilic Fe(II)-oxidizers and have been thought to be restricted to Fe-rich systems...
February 3, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28159276/a-new-approach-to-mineralization-of-flaxseed-linum-usitatissimum-l-for-trace-element-analysis-by-flame-atomic-absorption-spectrometry
#13
João P S Oliveira, Francisco L F Silva, Raimundo J G Monte, Wladiana O Matos, Gisele S Lopes
A new approach to the analysis of Cu, Fe, Mn and Zn in flaxseed was developed based on infrared-assisted acid digestion. Quantitation by flame atomic absorption spectrometry yields results in agreement with those arising from aggressive total decomposition using conventional microwave-assisted (MW) digestions. A full factorial design in two levels was applied to evaluate the impact of significant variables for all elements to determine optimal experimental conditions. A desirability function revealed these to be: 2...
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28153354/sport-and-sample-specific-features-of-trace-elements-in-adolescent-female-field-hockey-players-and-fencers
#14
Alexey A Nabatov, Natalya A Troegubova, Ruslan R Gilmutdinov, Andrey P Sereda, Alexander S Samoilov, Natalya V Rylova
Active physical exercises and growth are associated with mineral imbalances in young athletes. The purpose of this study was to examine the impact of sport-related factors on tissue mineral status in adolescent female athletes. Saliva and hair samples were used for the analysis of immediate and more permanent tissue mineral status, respectively. Samples taken from a control non-athletic female group and two groups of female athletes (field hockey and fencing) were analyzed for seven essential minerals: calcium, chromium, iron, potassium, magnesium, selenium and zinc...
November 5, 2016: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28153266/optimization-of-high-resolution-continuum-source-graphite-furnace-atomic-absorption-spectrometry-for-direct-analysis-of-selected-trace-elements-in-whole-blood-samples
#15
Magdalena Wójciak-Kosior, Wojciech Szwerc, Maciej Strzemski, Zoltan Wichłacz, Jan Sawicki, Ryszard Kocjan, Michał Latalski, Ireneusz Sowa
Trace analysis plays an important role in medicine for diagnosis of various disorders; however, the appropriate sample preparation is required mostly including mineralization. Although graphite furnace atomic absorption spectrometry (GF AAS) allows the investigation of biological samples such as blood, serum, and plasma without this step, it is rarely used for direct analysis because the residues of the rich organic matrix inside the furnace are difficult to remove and this may cause spectral/matrix interferences and decrease the lifetime of the graphite tube...
April 1, 2017: Talanta
https://www.readbyqxmd.com/read/28139049/effect-of-supplements-during-the-cold-season-on-the-reproductive-system-in-prepubertal-tibetan-sheep-ewes
#16
Xiaoping Jing, Quanhui Peng, Rui Hu, Hongze Wang, Xiaoqiang Yu, Allan Degen, Huawei Zou, Shanke Bao, Suonan Zhao, Zhisheng Wang
We examined the development of the reproductive system in prepubertal Tibetan sheep ewes when fed only oat hay (CON) or supplemented with either lick blocks (BS) or concentrate feed (CS) during the cold season. The average daily gain of the CS ewes was greater than that of the BS ewes (P < 0.05), which was greater than that of the CON ewes. The same pattern was observed in the number of ovarian follicles (P < 0.001), that is, CS > BS > CON. Serum concentrations of gonadotropin-releasing hormone, follicle-stimulating hormone, luteotrophic hormone, estradiol and progesterone in the CS and BS groups were higher than in the CON group (P < 0...
January 31, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28134066/laser-assisted-atom-probe-tomography-of-deformed-minerals-a-zircon-case-study
#17
Alexandre La Fontaine, Sandra Piazolo, Patrick Trimby, Limei Yang, Julie M Cairney
The application of atom probe tomography to the study of minerals is a rapidly growing area. Picosecond-pulsed, ultraviolet laser (UV-355 nm) assisted atom probe tomography has been used to analyze trace element mobility within dislocations and low-angle boundaries in plastically deformed specimens of the nonconductive mineral zircon (ZrSiO4), a key material to date the earth's geological events. Here we discuss important experimental aspects inherent in the atom probe tomography investigation of this important mineral, providing insights into the challenges in atom probe tomography characterization of minerals as a whole...
January 30, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28131473/mild-acid-and-alkali-treated-clay-minerals-enhance-bioremediation-of-polycyclic-aromatic-hydrocarbons-in-long-term-contaminated-soil-a-14-c-tracer-study
#18
Bhabananda Biswas, Binoy Sarkar, Ruhaida Rusmin, Ravi Naidu
Bioremediation of polycyclic aromatic hydrocarbon (PAH)-contaminated soils requires a higher microbial viability and an increased PAH bioavailability. The clay/modified clay-modulated bacterial degradation could deliver a more efficient removal of PAHs in soils depending on the bioavailability of the compounds. In this study, we modified clay minerals (smectite and palygorskite) with mild acid (HCl) and alkali (NaOH) treatments (0.5-3 M), which increased the surface area and pore volume of the products, and removed the impurities without collapsing the crystalline structure of clay minerals...
January 25, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28131453/particulate-pollution-in-urban-chongqing-of-southwest-china-historical-trends-of-variation-chemical-characteristics-and-source-apportionment
#19
Yuan Chen, Shao-Dong Xie, Bin Luo, Chong-Zhi Zhai
Chongqing, the largest megacity in southwest China, faces serious aerosol pollution but lacks information on particle characteristics and its sources. Official data released by Chongqing Environmental Protection Bureau demonstrated that urban PM10 concentrations decreased remarkably from 150μgm(-3) in 2000 to 90μgm(-3) in 2012. However, only several peer-reviewed studies paid attention to local fine particle (PM2.5) pollution. In the study, PM2.5 samples were obtained and subjected to chemical analysis in an urban site of the city during 2012 to 2013...
January 25, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28131450/regional-and-long-range-transport-of-aerosols-at-mt-aitana-southeastern-spain
#20
Nuria Galindo, Eduardo Yubero, Jose F Nicolás, Javier Crespo, Montse Varea, Juan Gil-Moltó
More than 150 particulate matter (PM) samples with aerodynamic diameters smaller than 1 and 10μm (PM1 and PM10, respectively) were collected during an 18-month sampling campaign at Mt. Aitana (1558m a.s.l.), located in the western Mediterranean basin. PM samples were analyzed for water-soluble ions, carbonaceous species and trace metals using standard procedures. Average mass concentrations of PM1 and PM10 were, respectively, 5.0 and 13.3μgm(-3). PM1 was composed mostly of organic carbon and ammonium sulfate, while nitrate and crustal elements were major components of the PM10 fraction...
January 25, 2017: Science of the Total Environment
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