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Calcium magnesium

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https://www.readbyqxmd.com/read/28943674/influence-of-groundwater-constituents-on-1-4-dioxane-degradation-by-a-binary-oxidant-system
#1
Ni Yan, Fei Liu, Yifei Chen, Mark L Brusseau
The influence of groundwater on the degradation of 1,4-dioxane (dioxane) by siderite-activated hydrogen peroxide coupled with persulfate was investigated through a series of batch experiments. The degradation of dioxane was considerably slower in groundwater compared to the tests conducted with ultrapure water. Additional tests were conducted to examine potential inhibitory effects of selected ions in isolation. The inhibition effect of anions on dioxane degradation, from strongest inhibition to weakest, was: bicarbonate (HCO3(-)) > sulfate (SO4(2-)) > chloride (Cl(-))...
December 2016: Water, Air, and Soil Pollution
https://www.readbyqxmd.com/read/28940108/cytoprotective-effects-of-the-red-marine-alga-chondrus-canaliculatus-against-maneb-induced-hematotoxicity-and-bone-oxidative-damages-in-adult-rats
#2
Imen Jaballi, Hajer Ben Saad, Intidhar Bkhairia, Boutheina Cherif, Choumous Kallel, Ons Boudawara, Michael Droguet, Christian Magné, Ahmed Hakim, Ibtissem Ben Amara
The current study aimed at evaluating the ability of a mineral and antioxidant-rich extract from Chondrus canaliculatus to improve maneb (MB)-induced toxicity in adult rat. The animals were divided into four groups: group 1 used as a control group, group 2 received MB, group 3 received MB + C. canaliculatus extract, and group 4 received only the algal extract. MB, a Mn-containing ethylene-bis-dithiocarbamate fungicide, induced oxidative stress damages, mineral perturbations in the plasma, urine, and bone, and genotoxicity in rats...
September 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28933805/perioperative-administration-of-buffered-versus-non-buffered-crystalloid-intravenous-fluid-to-improve-outcomes-following-adult-surgical-procedures
#3
REVIEW
Sohail Bampoe, Peter M Odor, Ahilanandan Dushianthan, Elliott Bennett-Guerrero, Suzie Cro, Tong J Gan, Michael Pw Grocott, Michael Fm James, Michael G Mythen, Catherine Mn O'Malley, Anthony M Roche, Kathy Rowan, Edward Burdett
BACKGROUND: Perioperative fluid strategies influence clinical outcomes following major surgery. Many intravenous fluid preparations are based on simple solutions, such as normal saline, that feature an electrolyte composition that differs from that of physiological plasma. Buffered fluids have a theoretical advantage of containing a substrate that acts to maintain the body's acid-base status - typically a bicarbonate or a bicarbonate precursor such as maleate, gluconate, lactate, or acetate...
September 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28927245/calcium-homeostasis-in-diabetes-mellitus
#4
REVIEW
Changhwan Ahn, Ji-Houn Kang, Eui-Bae Jeung
Diabetes mellitus (DM) is becoming a lifestyle-related pandemic disease. Diabetic patients frequently develop electrolyte disorders, especially diabetic ketoacidosis or nonketotic hyperglycemic hyperosmolar syndrome. Such patients show characteristic potassium, magnesium, phosphate, and calcium depletion. In this review, we discuss a homeostatic mechanism that links calcium and DM. We also provide a synthesis of the evidence in favor or against this linking mechanism by presenting recent clinical indications, mainly from veterinary research...
September 30, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28922715/pm2-5-components-and-outpatient-visits-for-asthma-a-time-stratified-case-crossover-study-in-a-suburban-area
#5
Chau-Ren Jung, Li-Hao Young, Hui-Tsung Hsu, Ming-Yeng Lin, Yu-Cheng Chen, Bing-Fang Hwang, Perng-Jy Tsai
The effects of fine particles (PM2.5) on asthma have been widely confirmed by epidemiological research studies. However, a limited number of studies have investigated the relationship between exposure to different PM2.5 components and asthma. We characterized the PM2.5 components in a suburban site of central Taiwan and conducted a time-stratified case-crossover study to elaborate the effects of daily concentration of each PM2.5 component on asthma outpatient visits. We retrieved asthma outpatient claims for individuals less than 20 years old with a residential address in the Shalu district, Taiwan, from the National Health Insurance Research Database during 2000-2010...
September 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28918134/crystallization-and-demineralization-phenomena-in-washed-rind-cheese
#6
Gil F Tansman, Paul S Kindstedt, John M Hughes
This report documents an observational study of a high-moisture washed-rind cheese. Three batches of cheese were sampled on a weekly basis for 6 wk and again at wk 10. Center, under-rind, rind, and smear samples were tested for pH, moisture, and selected mineral elements. Powder x-ray diffractometry and petrographic microscopy were applied to identify and image the crystal phases. The pH of the rind increased by over 2 pH units by wk 10. The pH of the under-rind increased but remained below the rind pH, whereas the center pH decreased for most of aging and only began to rise after wk 5...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28917262/determination-of-several-element-levels-in-hardaliye-beverages-using-flame-atomic-absorption-spectrometry-after-ultrasound-probe-extraction
#7
Dilek Bakircioglu, Nukte Topraksever, Yasemin Bakircioglu Kurtulus
In the present study, concentrations of calcium (Ca), copper (Cu), magnesium (Mg), manganese (Mn), sodium (Na), and zinc (Zn) in hardaliye samples produced in Turkey were determined by flame atomic absorption spectrometry after ultrasound probe extraction (UPE), microwave-assisted extraction (MAE), and wet extraction procedures. At present, there is limited work in the literature on UPE for the determination of trace elements in beverage samples. Our single-correlation analysis showed that the elements studied with the UPE method in hardaliye were strongly correlated with the MAE procedure...
September 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28915968/magnesium-to-counteract-elastin-degradation-and-vascular-calcification-in-chronic-obstructive-pulmonary-disease
#8
Rob Janssen
Accelerated elastin degradation is an important pathogenic mechanism in chronic obstructive pulmonary disease (COPD) leading to irreversible lung function loss and cardiovascular comorbidities. The rate of elastin breakdown is a predictor of mortality in patients with COPD. Decelerating elastinolysis might be an attractive therapeutic target in this debilitating condition. Vascular calcification starts in the elastin network of the arterial wall and is enhanced in patients with COPD. Elastin calcification is accompanied by an upregulation of matrix metalloproteinase gene expression and consequently a shift in the elastase/anti-elastase balance towards degradation...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28912557/a-nmda-receptor-calcium-influx-assay-sensitive-to-stimulation-by-glutamate-and-glycine-d-serine
#9
Hongqiu Guo, L Miguel Camargo, Fred Yeboah, Mary Ellen Digan, Honglin Niu, Yue Pan, Stephan Reiling, Gilberto Soler-Llavina, Wilhelm A Weihofen, Hao-Ran Wang, Y Gopi Shanker, Travis Stams, Anke Bill
N-methyl-D-aspartate-receptors (NMDARs) are ionotropic glutamate receptors that function in synaptic transmission, plasticity and cognition. Malfunction of NMDARs has been implicated in a variety of nervous system disorders, making them attractive therapeutic targets. Overexpression of functional NMDAR in non-neuronal cells results in cell death by excitotoxicity, hindering the development of cell-based assays for NMDAR drug discovery. Here we report a plate-based, high-throughput approach to study NMDAR function...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911269/applicability-of-two-dimensional-surface-model-in-bacterial-biosorption-system-an-advanced-approach-in-bioremediation-of-metal-ions
#10
Vishal Mishra
The surface of Bacillus VMSDCM accession no. HQ108109 has been characterized at various pH values of the experimental solution. The boundary values of conditional parameter were used to develop a mathematical six lumped stochastic model for studying the surface chemistry of the bacterium cells. The results of the model were statistically analyzed to understand the strength of the proposed model. The simulation of the model was performed in Turbo C++ interface. The convergence values of the model were recorded and all the asymptotic points were neglected...
September 15, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28904434/effect-of-double-filtration-plasmapheresis-on-various-plasma-components-and-patient-safety-a-prospective-observational-cohort-study
#11
K Jagdish, S Jacob, S Varughese, V G David, A Mohapatra, A Valson, K Tulsidas, T Veerasami, S Alexander
Double filtration plasmapheresis (DFPP) was historically used for blood group incompatible renal transplantation. Very few studies are available worldwide regarding its efficiency in removing specific plasma components, and safety. We conducted a prospective observational cohort study over 1 year on patients undergoing DFPP for various renal indications. There were 15 patients with 39 sessions. The pre- and post-procedure plasma samples of serum IgG, IgA, IgM, fibrinogen, calcium, phosphate, potassium, and magnesium were analyzed...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28903761/protective-effects-of-grape-seed-and-skin-extract-against-high-fat-diet-induced-lipotoxicity-in-rat-lung
#12
Mohamed El Ayed, Safwen Kadri, Selima Smine, Salem Elkahoui, Ferid Limam, Ezzedine Aouani
BACKGROUND: Obesity is a public health problem characterized by increased fat accumulation in different tissues. Obesity is directly linked to breathing problems and medical complications with lung, including obstructive sleep apnea syndrome, obesity hypoventilation syndrome, chronic obstructive pulmonary disease, asthma….In the present work, we aimed to investigate the effect of high fat diet (HFD) on lung lipotoxicity, oxidative stress, fatty acid composition and proportions in lung and implication in asthma development...
September 13, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28890762/nutrient-contents-of-the-freshwater-crab-isolapotamon-bauense-from-sarawak-malaysia-borneo
#13
Jongkar Grinang, Pang Sing Tyan, Andrew Alek Tuen, Indraneil Das
Data on nutrient contents of freshwater crabs are important for ecological studies and species conservation assessments, especially when the species concerned is threatened among others by habitat destruction and uncontrolled resources utilisation. Indeed comprehensive biological information is required to reconcile the needs between sustainable resources utilisation and conservation of the species. This study documents the nutrient contents of a freshwater crab, Isolapotamon bauense which is listed as 'Vulnerable' in the IUCN Red List of Threatened Species and also being harvested by local community for dietary supplement...
July 2017: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/28888805/hydrothermal-carbonization-of-food-waste-for-nutrient-recovery-and-reuse
#14
Ifeolu Idowu, Liang Li, Joseph R V Flora, Perry J Pellechia, Samuel A Darko, Kyoung S Ro, Nicole D Berge
Food waste represents a rather large and currently underutilized source of potentially available and reusable nutrients. Laboratory-scale experiments evaluating the hydrothermal carbonization of food wastes collected from restaurants were conducted to understand how changes in feedstock composition and carbonization process conditions influence primary and secondary nutrient fate. Results from this work indicate that at all evaluated reaction times and temperatures, the majority of nitrogen, calcium, and magnesium remain integrated within the solid-phase, while the majority of potassium and sodium reside in the liquid-phase...
September 6, 2017: Waste Management
https://www.readbyqxmd.com/read/28888328/a-population-based-approach-to-assess-the-heritability-and-distribution-of-renal-handling-of-electrolytes
#15
Flore Moulin, Belen Ponte, Menno Pruijm, Daniel Ackermann, Yassine Bouatou, Idris Guessous, Georg Ehret, Olivier Bonny, Antoinette Pechère-Bertschi, Jan A Staessen, Fred Paccaud, Pierre-Yves Martin, Michel Burnier, Bruno Vogt, Olivier Devuyst, Murielle Bochud
The handling of electrolytes by the kidney is essential for homeostasis. However, the heritability of these processes, the first step in gene discovery, is poorly known. To help clarify this, we estimated the heritability of serum concentration, urinary excretion, renal clearance, and fractional excretion of sodium, potassium, magnesium, calcium, phosphate, and chloride in a population-based study. Nuclear families were randomly selected from the general population in Lausanne, Geneva, and Bern, Switzerland, and urine collected over 24-hour periods...
September 6, 2017: Kidney International
https://www.readbyqxmd.com/read/28887631/the-efficient-removal-of-thallium-from-sintering-flue-gas-desulfurization-wastewater-in-ferrous-metallurgy-using-emulsion-liquid-membrane
#16
Li Yang, Jiangping Xiao, Yi Shen, Xian Liu, Wensong Li, Weiyan Wang, Yunquan Yang
The removal of thallium ions in flue gas desulfurization wastewater from ferrous metallurgic industry was studied by emulsion liquid membrane (ELM) method using 2-ethylhexyl phosphoric acid-2-ethylhexyl ester (P507) as carrier, aviation kerosene (AK) as organic solvent, polyisobutylene succinimide (T154) as surfactant, polyisobutylene (PIB) as additive, and sulfuric acid as internal reagent. Some important influence parameters such as concentrations of carrier, surfactant and stripping agent, agitation speed, extraction time, volume ratios of feed solution to emulsion phase and internal phase to membrane phase, and their effects on the removal efficiency of Tl in the ELM process were investigated and optimized...
September 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28886543/assessing-river-water-quality-using-water-quality-index-in-lake-taihu-basin-china
#17
Zhaoshi Wu, Xiaolong Wang, Yuwei Chen, Yongjiu Cai, Jiancai Deng
Lake Taihu Basin, one of the most developed regions in China, has received considerable attention due to its severe pollution. Our study provides a clear understanding of the water quality in the rivers of Lake Taihu Basin based on basin-scale monitoring and a water quality index (WQI) method. From September 2014 to January 2016, four samplings across four seasons were conducted at 96 sites along main rivers. Fifteen parameters, including water temperature, pH, dissolved oxygen (DO), conductivity, turbidity (tur), permanganate index (CODMn), total nitrogen, total phosphorus, ammonium (NH4-N), nitrite, nitrate (NO3-N), calcium, magnesium, chloride, and sulfate, were measured to calculate the WQI...
September 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28882031/a-multiregional-italian-cohort-of-24-hour-urine-metabolic-evaluation-in-renal-stone-formers
#18
Francesco Esperto, Martino Marangella, Alberto Trinchieri, Michele Petrarulo, Roberto Miano
BACKGROUND: Nephrolithiasis is a common condition with several studies documenting an increased prevalence over the past four decades. EAU and AUA guidelines recommend 24-hour urine metabolic evaluation in high-risk stone formers. Aim of this study is to retrospectively evaluate the first three years of experience with Lithotest® (Biohealth Italia Srl, Turin, Italy) through the analysis of demographic, clinical and biochemical data collected from a large cohort of patients with kidney stones...
September 7, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28879543/apex-predatory-mammals-as-bioindicator-species-in-environmental-monitoring-of-elements-in-dinaric-alps-croatia
#19
Maja Lazarus, Ankica Sekovanić, Tatjana Orct, Slaven Reljić, Josip Kusak, Jasna Jurasović, Đuro Huber
Tissue element investigations of apex terrestrial mammals are very scarce in Europe. We quantified 16 essential and nonessential elements in the kidney cortex, liver, and muscle tissue of 467 brown bears (Ursus arctos), 125 gray wolves (Canis lupus), one Eurasian lynx (Lynx lynx), and three golden jackals (Canis aureus) from Croatia by inductively coupled plasma mass spectrometry (ICP-MS). Renal cadmium (0.6% of animals) and lead (1%) and hepatic lead (5%) were found in toxicologically relevant levels for mammals only in bears, while the other elements were within normal range...
September 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28876916/molecular-routes-to-group-iv-magnesium-and-calcium-nanocrystalline-ceramics
#20
Rafał Petrus, Anna Drąg-Jarząbek, Józef Utko, Dominik Bykowski, Tadeusz Lis, Piotr Sobota
The effect of alkaline-earth-metal alkoxides on the protonolysis of Cp2M'Cl2 (M' = Ti, Zr, Hf; Cp = cyclopentadiene) was investigated. This approach enabled the design of compounds with well-defined molecular structures to generate high-purity binary metal oxides. Single-source molecular precursors with structures of [M2M'2(μ3-OEt)2(μ-OEt)4(OEt)6(EtOH)4] with M = Mg and M' = Ti (1), Zr (2), and Hf (3), [Ca6Ti4(μ6-O)2(μ4-O)2(μ3-OEt)12(OEt)12(EtOH)6Cl4] (4), and [M2M'2(μ4-O)(μ-OEt)5(OEt)4(EtOH)4Cl]n with M = Ca and M' = Zr (5) and Hf (6) were prepared via elimination of the cyclopentadienyl ring from Cp2M'Cl2 as CpH in the presence of M(OEt)2 and ethanol (EtOH) as a source of protons...
September 6, 2017: Inorganic Chemistry
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