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https://www.readbyqxmd.com/read/28436326/evaluation-and-characterization-of-nutritive-properties-of-the-jelly-ear-culinary-medicinal-mushroom-auricularia-auricula-judae-agaricomycetes-from-nigeria
#1
Reginald Chibueze Ohiri, Essien Eka Bassey
This study investigated the nutritive properties of the culinary-medicinal mushroom Auricularia auricula- judae. From the analysis, among the major minerals, potassium was found in the highest concentration, with a value of 172.03 ± 8.62 mg/kg, whereas manganese had the highest concentration among trace elements, with a value of 1.66 ± 0.11 mg/kg. Glutamic acid was the amino acid detected in the largest amounts in this study, with a value of 10.09 ± 1.86 mg/kg. Although glutamine and asparagine were not detected in this mushroom, cysteine and methionine had the lowest concentrations, with values of 0...
2017: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/28426057/in-situ-synthesis-of-fluorescent-magnetosomes-using-an-organic-membrane-as-a-soft-template
#2
Wenjing Ke, Juhua Zhang, Xueqin An, Bo Zhang
A novel approach was presented for the in situ synthesis of fluorescent magnetosomes by biological mineralization and carbonization processes for the first time. The surface structures, magnetism and fluorescence were studied, and the cytotoxicity tests and fluorescent trace in liposomes were probed. The fluorescent magnetosomes exhibit not only unique fluorescence and ferromagnetic properties but also low toxicity and superior imaging capability.
April 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28422987/systematic-review-and-meta-analysis-shows-a-specific-micronutrient-profile-in-people-with-down-syndrome-lower-blood-calcium-selenium-and-zinc-higher-red-blood-cell-copper-and-zinc-and-higher-salivary-calcium-and-sodium
#3
Amene Saghazadeh, Maryam Mahmoudi, Atefeh Dehghani Ashkezari, Nooshin Oliaie Rezaie, Nima Rezaei
Different metabolic profiles as well as comorbidities are common in people with Down Syndrome (DS). Therefore it is relevant to know whether micronutrient levels in people with DS are also different. This systematic review was designed to review the literature on micronutrient levels in people with DS compared to age and sex-matched controls without DS. We identified sixty nine studies from January 1967 to April 2016 through main electronic medical databases PubMed, Scopus, and Web of knowledge. We carried out meta-analysis of the data on four essential trace elements (Cu, Fe, Se, and Zn), six minerals (Ca, Cl, K, Mg, Na, and P), and five vitamins (vitamin A, B9, B12, D, and E)...
2017: PloS One
https://www.readbyqxmd.com/read/28421987/a-new-dispersive-liquid-liquid-microextraction-method-for-preconcentration-and-determination-of-aluminum-iron-copper-and-lead-in-real-water-samples-by-hplc
#4
Güzin Alpdoğan, Şule Dinç Zor
In this study, dispersive liquid–liquid microextraction coupled with HPLC with variable-wavelength detectionwas applied for the simultaneous determination of Al, Fe, Cu, and Pb in various water samples at trace levels. In the proposed method, all the system parameters in both the extraction and separation/determination steps, such as extraction and disperser solvent type and their volumes, complexing reagent concentration, salt addition, extraction and centrifugation times, and pH, were optimized to get not only high extraction efficiency but also lower LODs for the analytes...
April 18, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28407467/trace-uranium-partitioning-in-a-multi-phase-nano-feooh-system
#5
Martin E McBriarty, Jennifer A Soltis, Sebastien N Kerisit, Odeta Qafoku, Mark E Bowden, Eric J Bylaska, James J De Yoreo, Eugene S Ilton
The characterization of trace elements in minerals using extended X-ray absorption fine structure (EXAFS) spectroscopy constitutes a first step toward understanding how impurities and contaminants interact with the host phase and the environment. However, limitations to EXAFS interpretation complicate the analysis of trace concentrations of impurities that are distributed across multiple phases in a heterogeneous system. Ab initio molecular dynamics (AIMD)-informed EXAFS analysis was employed to investigate the immobilization of trace uranium associated with nanophase iron (oxyhydr)oxides, a model system for the geochemical sequestration of radiotoxic actinides...
April 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28396985/do-dietary-habits-influence-trace-elements-release-from-fixed-orthodontic-appliances
#6
Paulina Wołowiec, Katarzyna Chojnacka, Bartłomiej W Loster, Marcin Mikulewicz
The objective was to investigate the effect of dietary habits on the release of Cr and Ni ions from orthodontic appliances by hair mineral analysis. Patients (N = 47) underwent electronic questionnaire survey to investigate the effect of dietary habits on Cr and Ni levels in hair. The research was carried out on hair sampled at the beginning and in the 4th, 8th, and 12th months of the treatment. The content of Cr and Ni in the collected samples was determined by ICP-OES. The study showed that consumption of acidic dietary products may have the effect on increasing the release of Cr and Ni ions from orthodontic appliances...
April 11, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28389726/tracing-aquatic-priming-effect-during-microbial-decomposition-of-terrestrial-dissolved-organic-carbon-in-chemostat-experiments
#7
Karoline Morling, Julia Raeke, Norbert Kamjunke, Thorsten Reemtsma, Jörg Tittel
Microbial decomposition of terrestrial carbon may be enhanced by the addition of easily decomposable compounds, a phenomenon referred to as priming effect. We investigated the microbial decomposition of terrestrial dissolved organic carbon (DOC) in one-stage and two-stage flow-through cultures (chemostats) in the absence and presence of growing phytoplankton as phytoplankton-derived organic matter might facilitate the mineralization of more refractory terrestrial compounds. Peat water and soil leachate were used as terrestrial substrates, and only slight DOC decomposition was observed in the absence of phytoplankton for both substrates...
April 7, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28389635/contrasting-granite-metallogeny-through-the-zircon-record-a-case-study-from-myanmar
#8
Nicholas J Gardiner, Chris J Hawkesworth, Laurence J Robb, Martin J Whitehouse, Nick M W Roberts, Christopher L Kirkland, Noreen J Evans
Granitoid-hosted mineral deposits are major global sources of a number of economically important metals. The fundamental controls on magma metal fertility are tectonic setting, the nature of source rocks, and magma differentiation. A clearer understanding of these petrogenetic processes has been forged through the accessory mineral zircon, which has considerable potential in metallogenic studies. We present an integrated zircon isotope (U-Pb, Lu-Hf, O) and trace element dataset from the paired Cu-Au (copper) and Sn-W (tin) magmatic belts in Myanmar...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28385394/effect-of-injectable-trace-mineral-complex-supplementation-on-development-of-ovarian-structures-and-serum-copper-and-zinc-concentrations-in-over-conditioned-holstein-cows
#9
Juan González-Maldonado, Raymundo Rangel-Santos, Raymundo Rodríguez-de Lara, Oswaldo García-Peña
This study evaluated the effect of injecting trace minerals on reproductive performance in over-conditioned Holstein cows before synchronized estrus. Multiparous non-lactating, over-conditioned repeat breeder cows (n=20) were assigned randomly to one of two treatments: 1) control (n=10), and 2) supplementation with an injectable trace mineral complex 25days before expected synchronized estrus (n=10). Follicular waves were synchronized by intravaginal insertion of a CIDR for eight days and an intramuscular (i...
March 28, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28373910/maternal-selenium-supplementation-at-various-stages-of-periconception-period-influence-on-murine-blastocyst-morphology-and-implantation-status
#10
Mark Anthony C Mamon, Gliceria B Ramos
BACKGROUND: Selenium is one of the trace minerals whose deficiency is known to lead to complications of female reproduction. The identified gaps in researches regarding selenium and pregnancy include optimizing the dosage of selenium supplementation, timing of supplementation, finding the best form and type of selenium, and selenium administration combined with other antioxidants. Hence, this study was conceptualized to address one of the identified gaps, that is, to find out the best timing of selenium administration around the time of pregnancy...
2017: Journal of Animal Science and Technology
https://www.readbyqxmd.com/read/28362308/hydrochemical-characteristics-of-natural-water-and-selenium-rich-water-resources-in-the-northern-daba-mountains-china
#11
Chao Zhao, Kunli Luo, Yajun Du, Yuan Tian, Jie Long, Xiaofeng Zhao, Shixi Zhang
The Northern Daba Mountains (NDM) of Shaanxi Province, China, are a well-known selenium (Se)-rich area, and the area is also known for endemic fluorine (F) and arsenic (As) poisoning. In order to study the hydrochemical characteristics and trace element contents of the natural waters of this region, 62 water samples were collected from Lan'gao area in the NDM. The hydrochemical composition was principally characterized by Ca·Mg-HCO3·SO4. F and As concentrations ranged from 0.01 to 0.67 mg/L and from 0.33 to 6...
April 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28350488/effect-of-supplemental-trace-minerals-on-hsp-70-mrna-expression-in-commercial-broiler-chicken
#12
U Rajkumar, A Vinoth, E Pradeep Kumar Reddy, M Shanmugam, S V Rama Rao
The effects of supplementing the organic forms of selenium (Se), chromium (Cr), and zinc (Zn) on Hsp-70 mRNA expression and body weight in broiler chickens were evaluated. 200 chicks were equally distributed into stainless steel battery brooders at the rate of 5 birds per pen and reared under heat stress condition up to 42(nd) day. The chicks were fed with three experimental diets supplemented with organic forms of Se (0.30 mg/kg), Cr (2 mg/kg), and Zn (40 mg/kg) during the starter and finisher phases and a control diet without any supplementation...
March 28, 2017: Animal Biotechnology
https://www.readbyqxmd.com/read/28349382/protective-effect-of-selenium-on-aflatoxin-b1-induced-testicular-toxicity-in-mice
#13
Zheng Cao, Bing Shao, Feibo Xu, Yunfeng Liu, Yanfei Li, Yanzhu Zhu
Aflatoxins have been considered as one of the major risk factors of male infertility, and aflatoxin B1 (AFB1) is the most highly toxic and prevalent member of the aflatoxins family. Selenium (Se), an essential nutritional trace mineral for normal testicular development and male fertility, has received extensive intensive on protective effects of male reproductive system due to its potential antioxidant and activating testosterone synthesis. To investigate the protective effect of Se on AFB1-induced testicular toxicity, the mice were orally administered with AFB1 (0...
March 27, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28347463/level-of-minerals-and-trace-elements-in-the-urine-of-the-participants-of-mountain-ultra-marathon-race
#14
Jasna Jablan, Suzana Inić, Hagen Stosnach, Maja Ortner Hadžiabdić, Lovorka Vujić, Ana-Marija Domijan
The aim of the present study was to explore impact of endurance exercise on urinary level of minerals and trace elements as well as on some oxidative stress and biochemical parameters. Urine samples were collected from participants (n=21) of mountain ultra-marathon race (53km; Medvednica, Zagreb, Croatia), before (baseline value), immediately after, 12h and 24h after the race. In urine samples level of minerals (Ca, P, K and Na) and trace elements (Se, Zn, Mn, Cu, Fe and Co) were assessed using the bench top Total reflection X-ray Fluorescence (TXRF) spectrometer...
May 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28346388/thermal-condensation-of-glycine-and-alanine-on-metal-ferrite-surface-primitive-peptide-bond-formation-scenario
#15
Md Asif Iqubal, Rachana Sharma, Sohan Jheeta, Kamaluddin
The amino acid condensation reaction on a heterogeneous mineral surface has been regarded as one of the important pathways for peptide bond formation. Keeping this in view, we have studied the oligomerization of the simple amino acids, glycine and alanine, on nickel ferrite (NiFe₂O₄), cobalt ferrite (CoFe₂O₄), copper ferrite (CuFe₂O₄), zinc ferrite (ZnFe₂O₄), and manganese ferrite (MnFe₂O₄) nanoparticles surfaces, in the temperature range from 50-120 °C for 1-35 days, without applying any wetting/drying cycles...
March 27, 2017: Life
https://www.readbyqxmd.com/read/28343692/quality-survey-of-natural-mineral-water-and-spring-water-sold-in-france-monitoring-of-hormones-pharmaceuticals-pesticides-perfluoroalkyl-substances-phthalates-and-alkylphenols-at-the-ultra-trace-level
#16
Laurine Le Coadou, Karyn Le Ménach, Pierre Labadie, Marie-Hélène Dévier, Patrick Pardon, Sylvie Augagneur, Hélène Budzinski
The aim of the present study, one of the most complete ever performed in France, was to carry out an extensive survey on the potential presence of a large amount of emerging contaminants in 40 French bottled waters, including parent compounds and metabolites. The studied samples represented 70% of the French bottled water market in volume. Six classes of compounds were investigated, most of them being unregulated in bottled waters: pesticides and their transformation products (118), pharmaceutical substances (172), hormones (11), alkylphenols (APs) (8), phthalates (11) and perfluoroalkyl substances (PFAS) (10)...
March 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28343359/characterization-of-pm2-5-chemical-composition-at-the-demokritos-suburban-station-in-athens-greece-the-influence-of-saharan-dust
#17
Vasiliki Vasilatou, Evangelia Diapouli, Dimitrios Abatzoglou, Evangelos B Bakeas, Michael Scoullos, Konstantinos Eleftheriadis
The aim of this work is to study the atmospheric concentrations of selected major and trace elements and ions found in PM2.5, at a suburban site in Athens, Greece, and discuss on the impact of the different sources. Special focus is given to the influence of Saharan dust episodes. The seasonal variability in the metal and ion concentrations is also examined. The results show that PM2.5 mass concentrations are significantly influenced by Saharan dust events; it is observed that when the PM2.5 concentration is higher than 25 μg/m(3), five out of six times, the air mass crossed North Africa at an altitude within the boundary layer...
March 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28323483/taphonomy-of-microbial-biosignatures-in-spring-deposits-a-comparison-of-modern-quaternary-and-jurassic-examples
#18
Sally L Potter-McIntyre, Jason Williams, Charity Phillips-Lander, Laura O'Connell
On Earth, microorganisms commonly enhance mineral precipitation and mediate mineralogical and chemical compositions of resulting deposits, particularly at spring systems. However, preservation of any type of microbial fossil or chemical or textural biosignature depends on the degree of alteration during diagenesis and factors such as exposure to diagenetic fluids. Little is known about the transformation of biosignatures during diagenesis over geologic time. Ten Mile Graben, Utah, USA, hosts a cold spring system that is an exceptional site for evaluation of diagenetic alteration of biosignatures because of the presence of modern springs with actively precipitating microbial mats and a series of progressively older tufa terraces (<400 ka) preserved in the area from the same spring system...
March 2017: Astrobiology
https://www.readbyqxmd.com/read/28323446/leguminosae-native-nodulating-bacteria-from-a-gold-mine-as-contaminated-soil-multi-resistance-to-trace-elements-and-possible-role-in-plant-growth-and-mineral-nutrition
#19
Wesley de M Rangel, Silvia M de Oliveira Longatti, Paulo A A Ferreira, Daiane S Bonaldi, Amanda A Guimarães, Sofie Thijs, Nele Weyens, Jaco Vangronsveld, Fatima M S Moreira
Efficient N2-fixing Leguminosae nodulating bacteria resistant to As may facilitate plant growth on As-contaminated sites. In order to identify bacteria possessing these features, 24 strains were isolated from nodules of the trap species Crotalaria spectabilis (12) and Stizolobium aterrimum (12) growing on an As-contaminated gold mine site. 16S rRNA gene sequencing revealed that most of the strains belonged to the group of α-Proteobacteria, being representatives of the genera Bradyrhizobium, Rhizobium, Inquilinus, Labrys, Bosea, Starkeya and Methylobacterium...
March 21, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28321994/detection-and-imaging-of-chrome-yellow-lead-chromate-in-latent-prints-solid-residues-and-minerals-by-laser-desorption-ionization-mass-spectrometry-ldi-ms
#20
Zhaoyu Zheng, Julius Pavlov, Athula B Attygalle
In the past, Chrome Yellow (lead chromate, PbCrO4 ), a bright orange-red substance, has been widely used as an inorganic pigment in the production of paints, coatings, and plastics. Herein, we demonstrate that laser desorption/ionization mass spectrometry (LDI-MS) is a powerful tool for the detection of lead chromate in solid residues. In fact, lead chromate in trace amounts is easily detectable by LDI-MS even from residues left as latent prints. For example, a latent print obtained by stamping the exposed laterally cut surface of a pencil over 50 years old on an acetonitrile-moistened paper, was successfully imaged for both lead and chromate using a Synapt G2 HDMS mass spectrometer...
March 21, 2017: Journal of Mass Spectrometry: JMS
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