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https://www.readbyqxmd.com/read/28627187/-is-plasma-selenium-correlated-to-transthyretin-levels-in-critically-ill-patients
#1
Renata G B O N Freitas, Roberto Jose Negrão Nogueira, Silvia Maria Franciscato Cozzolino, Ana Carolina Junqueira Vasques, Matthew Thomas Ferreira, Gabriel Hessel
BACKGROUND: Selenium is an essential trace element, but critically ill patients using total parenteral nutrition (PN) do not receive selenium because this mineral is not commonly offered. Threfore, the eval uation of plasma selenium levels is very important for treating or preventing this deficiency. Recent studies have shown that transthyretin may reflect the selenium intake and could be considered a biomarker. However, this issue is still little explored in the literature. OBJECTIVE: This study aims to investigate the correlation of transthyretin with the plasma selenium of critically ill patients receiving PN...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28624277/technical-note-at-line-prediction-of-mineral-composition-of-fresh-cheeses-using-near-infrared-technologies
#2
C L Manuelian, S Currò, G Visentin, M Penasa, M Cassandro, C Dellea, M Bernardi, M De Marchi
Milk and dairy products are important sources of macro- and trace elements for human health. However, fresh cheeses usually have a lower mineral content than other cheeses, and this makes mineral prediction more difficult. Although mineral prediction in several food matrices using infrared spectroscopy has been reported in the literature, very little information is available for cheeses. The present study was aimed at developing near-infrared reflectance (NIR, 866-2,530 nm) and transmittance (NIT, 850-1,050 nm) spectroscopy models to predict the major mineral content of fresh cheeses...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28620190/formation-of-biphasic-hydroxylapatite-beta-magnesium-tricalcium-phosphate-in-heat-treated-salmonid-vertebrae
#3
Don H Butler, Ruth Shahack-Gross
Ichthyoarchaeological evidence is uncommon at ancient hunter-gatherer sites from various regions and timeframes. This research contributes to the development of microarchaeological techniques useful for identifying fishing economies in situations where classifiable bones are unavailable. Specifically, traces of heat altered bone mineral in domestic hearths are expected to provide markers for discarded fish remains. We used a series of laboratory incineration experiments to characterize the mineralogy of burned salmonid vertebrae...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28618665/metal-accumulation-in-soils-derived-from-volcano-sedimentary-rocks-rio-itapicuru-greenstone-belt-northeastern-brazil
#4
Laíse Milena Ribeiro Dos Santos, Thomas Vincent Gloaguen, Francisco de Souza Fadigas, Joselisa Maria Chaves, Tamires Moraes Oliveira Martins
Many countries and some Brazilian regions have defined the guideline values for metals in soils. However, the local geological features may be so heterogeneous that global or even regional guideline values cannot be applied. The Greenstone Belts are worldwide geological formations of vast extension, containing mineralization of various metals (e.g., Au, Cr, Ni, and Ag). Natural concentrations of soils must be known to correctly assess the impact of mining. We studied the soils of the Rio Itapicuru Greenstone Belt (RIGB), of Paleoproterozoic age, sampling at 24 sites (0-0...
June 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28616021/mri-analysis-and-clinical-significance-of-lower-extremity-muscle-cross-sectional-area-after-spinal-cord-injury
#5
REVIEW
Robert M Lester, Kori Johnson, Refka E Khalil, Rehan Khan, Ashraf S Gorgey
Shortly after spinal cord injury (SCI), the musculoskeletal system undergoes detrimental changes in size and composition, predominantly below the level of injury. The loss of muscle size and strength, along with increased immobility, predisposes persons with SCI to rapid and severe loss in bone mineral density and other health related consequences. Previous studies have highlighted the significance of measuring thigh muscle cross-sectional area, however, measuring the size and composition of muscles of the lower leg may provide insights on how to decrease the risk of various comorbidities...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28609642/micronutrient-deficiencies-after-bariatric-surgery-an-emphasis-on-vitamins-and-trace-minerals
#6
Jayshil J Patel, Manpreet S Mundi, Ryan T Hurt, Bruce Wolfe, Robert G Martindale
Obesity has become a worldwide epidemic with a disproportionate increase in grade III obesity. Bariatric surgery offers an attractive option for sustained weight loss compared with traditional methods such as exercise and diet. Micronutrient deficiencies are common and clinically significant after bariatric surgery. These deficiencies are related to a combination of patient and surgical variables. A thorough understanding of specific micronutrient deficiencies is necessary for early recognition and optimal management...
June 1, 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28606542/hydroxyapatite-crystallization-in-shrimp-cephalothorax-wastes-during-subcritical-water-treatment-for-chitin-extraction
#7
Angélica Espíndola-Cortés, Rosario Moreno-Tovar, Lauro Bucio, Miquel Gimeno, José Luis Ruvalcaba-Sil, Keiko Shirai
The extraction of calcareous chitin from shrimp cephalothorax was successfully achieved using a subcritical water treatment to attain a deproteinization up to 96%. The treatments also increased the crystalline domain size in the α-chitin fibers. An experimental design of Taguchi allowed the optimization of experiments. The macroelements identified in all samples were Ca, P, S, K, Cl and Al, whereas Cr, Mn, Fe, Ni, Cu, Zn, Br and Sr were also detected as microelements. The assigned crystalline phases by XRD were α-chitin, calcite, HAP and traces of quartz...
September 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28603080/a-novel-auditory-ossicles-membrane-and-the-development-of-conductive-hearing-loss-in-dmp1-null-mice
#8
Kun Lv, Haiyang Huang, Xing Yi, Mark E Chertoff, Chaoyuan Li, Baozhi Yuan, Robert J Hinton, Jian Q Feng
Genetic mouse models are widely used for understanding human diseases but we know much less about the anatomical structure of the auditory ossicles in the mouse than we do about human ossicles. Furthermore, current studies have mainly focused on disease conditions such as osteomalacia and rickets in patients with hypophosphatemia rickets, although the reason that these patients develop late-onset hearing loss is unknown. In this study, we first analyzed Dmp1 lac Z knock-in auditory ossicles (in which the blue reporter is used to trace DMP1 expression in osteocytes) using X-gal staining and discovered a novel bony membrane surrounding the mouse malleus...
June 8, 2017: Bone
https://www.readbyqxmd.com/read/28600726/the-influence-of-physicochemical-parameters-on-bioaccessibility-adjusted-hazard-quotients-for-copper-lead-and-zinc-in-different-grain-size-fractions-of-urban-street-dusts-and-soils
#9
Sharareh Dehghani, Farid Moore, Luba Vasiluk, Beverley A Hale
When the hazard quotient for ingestion (HQI) of a trace element in soil and dust particles is adjusted for the element's bioaccessibility, the HQI is typically reduced as compared to its calculation using pseudo-total element concentration. However, those studies have mostly used bulk particles (<2 mm or <250 µm), and the reduction in HQI when expressed as bioaccessible metal may not be similar among particle size fractions, the possibility probed by the present study of street dusts and soils collected in Tehran...
June 9, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28598340/effects-of-drinking-desalinated-seawater-on-cell-viability-and-proliferation
#10
Camila Longhi Macarrão, André Luis Lacerda Bachi, Mario Mariano, Lucia Jamli Abel
Desalination of seawater is becoming an important means to address the increasing scarcity of freshwater resources in the world. Seawater has been used as drinking water in the health, food, and medical fields and various beneficial effects have been suggested, although not confirmed. Given the presence of 63 minerals and trace elements in drinking desalinated seawater (63 DSW), we evaluated their effects on the behavior of tumorigenic and nontumorigenic cells through the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay and annexin-V-fluorescein isothiocyanate/propidium iodide staining...
June 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28594919/weaned-beef-calves-fed-selenium-biofortified-alfalfa-hay-have-an-enriched-nasal-microbiota-compared-with-healthy-controls
#11
Jean A Hall, Anitha Isaiah, Charles T Estill, Gene J Pirelli, Jan S Suchodolski
Selenium (Se) is an essential trace mineral important for immune function and overall health of cattle. The nasopharyngeal microbiota in cattle plays an important role in overall respiratory health, especially when stresses associated with weaning, transport, and adaptation to a feedlot affect the normal respiratory defenses. Recent evidence suggests that cattle diagnosed with bovine respiratory disease complex have significantly less bacterial diversity. The objective of this study was to determine whether feeding weaned beef calves Se-enriched alfalfa (Medicago sativa) hay for 9 weeks in a preconditioning program prior to entering the feedlot alters nasal microbiota...
2017: PloS One
https://www.readbyqxmd.com/read/28590131/iron-ii-catalyzed-iron-atom-exchange-and-mineralogical-changes-in-iron-rich-organic-freshwater-flocs-an-iron-isotope-tracer-study
#12
Laurel K ThomasArrigo, Christian Mikutta, James Byrne, Andreas Kappler, Ruben Kretzschmar
In freshwater wetlands, organic flocs are often found enriched in trace metal(loid)s associated with poorly crystalline Fe(III)-(oxyhydr)oxides. Under reducing conditions, flocs may become exposed to aqueous Fe(II), triggering Fe(II)-catalyzed mineral transformations and trace metal(loid) release. In this study, pure ferrihydrite, a synthetic ferrihydrite-polygalacturonic acid coprecipitate (16.7 wt % C), and As- (1280 and 1230 mg/kg) and organic matter (OM)-rich (18.1 and 21.8 wt % C) freshwater flocs dominated by ferrihydrite and nanocrystalline lepidocrocite were reacted with an isotopically enriched (57)Fe(II) solution (0...
June 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28589273/synoptic-sampling-and-principal-components-analysis-to-identify-sources-of-water-and-metals-to-an-acid-mine-drainage-stream
#13
Patrick Byrne, Robert L Runkel, Katherine Walton-Day
Combining the synoptic mass balance approach with principal components analysis (PCA) can be an effective method for discretising the chemistry of inflows and source areas in watersheds where contamination is diffuse in nature and/or complicated by groundwater interactions. This paper presents a field-scale study in which synoptic sampling and PCA are employed in a mineralized watershed (Lion Creek, Colorado, USA) under low flow conditions to (i) quantify the impacts of mining activity on stream water quality; (ii) quantify the spatial pattern of constituent loading; and (iii) identify inflow sources most responsible for observed changes in stream chemistry and constituent loading...
June 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28584526/analyses-of-mineral-content-and-heavy-metal-of-honey-samples-from-south-and-east-region-of-turkey-by-using-icp-ms
#14
Serap Kılıç Altun, Hikmet Dinç, Nilgün Paksoy, Füsun Karaçal Temamoğulları, Mehmet Savrunlu
The substantial of mineral ingredients in honey may symbolize the existence of elements in the plants and soil of the vicinity wherein the honey was taken. The aim of this study was to detect the levels of 13 elements (Potassium (K), Sodium (Na), Calcium (Ca), Iron (Fe), Zinc (Zn), Cadmium (Cd), Copper (Cu), Manganese (Mn), Lead (Pb), Nickel (Ni), Chromium (Cr), Aluminum (Al), and Selenium (Se)) in unifloral and multifloral honey samples from south and east regions of Turkey. Survey of 71 honey samples from seven different herbal origins, picked up from the south and east region of Turkey, was carried out to determine their mineral contents during 2015-2016...
2017: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/28582766/enrichment-and-geochemical-mobility-of-heavy-metals-in-bottom-sediment-of-the-hoedong-reservoir-korea-and-their-source-apportionment
#15
Pyeong-Koo Lee, Min-Ju Kang, Soonyoung Yu, Kyung-Seok Ko, Kyoochul Ha, Seong-Cheon Shin, Jung Han Park
Physicochemical characteristics of bottom sediment in the Hoedong reservoir were studied to evaluate the effectiveness of the reservoir as traps for trace metals. Roadside soil, stream sediment and background soil were also studied for comparison. Sequential extractions were carried out, and lead isotopic compositions of each extraction were determined to apportion Pb sources. Besides, particle size distribution of roadside soil, and metal concentrations and Pb isotopes of each size group were determined to characterize metal contamination...
May 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28582427/imaging-of-jurassic-fossils-from-the-talbragar-fish-bed-using-fluorescence-photoluminescence-and-elemental-and-mineralogical-mapping
#16
Michael Frese, Gerda Gloy, Rolf G Oberprieler, Damian B Gore
The Talbragar Fish Bed is one of Australia's most important Jurassic deposits for freshwater fishes, land plants and aquatic and terrestrial insects. The site has yielded many well preserved fossils, which has led to the formal description of numerous new species and higher taxa. The excellent preservation of many fossils has allowed detailed anatomical studies, e.g. of the early teleost fish Cavenderichthys talbragarensis (Woodward, 1895). Here we report on the fluorescent characteristics and mineral composition of a range of Talbragar fossils...
2017: PloS One
https://www.readbyqxmd.com/read/28575927/storage-induced-changes-in-coliform-heterotrophic-groups-of-bacteria-and-nutrient-levels-of-human-urine-for-its-safe-use-in-biological-production
#17
B B Jana, Susmita Lahiri, D Sarkar, Sukanta Rana, J N Bhakta, Dipak Paul
Human urine is a potential source of various nutrients, minerals and trace elements. Its use as a fertilizer is growing popular among farmers. Here, we examined the pattern of changes in the counts of coliform, heterotrophic bacteria as well as physico-chemical characteristics of human urine during different days of storage under closed conditions at ambient temperature. We observed that after 253 days of storage under closed condition, the coliform counts were reduced significantly and remained within the safe limit to be used as fertilizer...
August 2016: Indian Journal of Experimental Biology
https://www.readbyqxmd.com/read/28575833/source-apportionment-and-health-risk-assessment-among-specific-age-groups-during-haze-and-non-haze-episodes-in-kuala-lumpur-malaysia
#18
Nor Azura Sulong, Mohd Talib Latif, Md Firoz Khan, Norhaniza Amil, Matthew J Ashfold, Muhammad Ikram Abdul Wahab, Kok Meng Chan, Mazrura Sahani
This study aims to determine PM2.5 concentrations and their composition during haze and non-haze episodes in Kuala Lumpur. In order to investigate the origin of the measured air masses, the Numerical Atmospheric-dispersion Modelling Environment (NAME) and Global Fire Assimilation System (GFAS) were applied. Source apportionment of PM2.5 was determined using Positive Matrix Factorization (PMF). The carcinogenic and non-carcinogenic health risks were estimated using the United State Environmental Protection Agency (USEPA) method...
May 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28575470/liver-mitochondrial-dysfunction-and-electron-transport-chain-defect-induced-by-high-dietary-copper-in-broilers
#19
Fan Yang, Huabin Cao, Rongsheng Su, Jianying Guo, Chengmei Li, Jiaqiang Pan, Zhaoxin Tang
Copper is an important trace mineral in the diet of poultry due to its biological activity. However, limited information is available concerning the effects of high copper on mitochondrial dysfunction. In this study, 72 broilers were used to investigate the effects of high dietary copper on liver mitochondrial dysfunction and electron transport chain defect. Birds were fed with different concentrations [11, 110, 220, and 330 mg of copper/kg dry matter (DM)] of copper from tribasic copper chloride (TBCC). The experiment lasted for 60 d...
June 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28573793/traceability-of-opuntia-ficus-indica-l-miller-by-ipc-ms-multielemental-profile-and-chemometric-approach
#20
A F Mottese, C Naccari, R Vadala, G D Bua, G Bartolomeo, R Rando, N Cicero, G Mo Dugo
BACKGROUND: Opuntia ficus india L. Miller fruits, particularly "Ficodindia dell'Etna" of Biancavilla (POD), "Fico d'india tradizionale di Roccapalumba" with protected brand and samples coming from an experimental field in Pezzolo (Sicily), were analyzed by ICP-MS in order to determinate the multi-element profile. A multivariate chemometric approach, specifically Principal Component Analysis (PCA), was applied to individuate how mineral elements may represent a marker of geographic origin, useful for the traceability...
June 2, 2017: Journal of the Science of Food and Agriculture
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