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Calcium magnesium

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https://www.readbyqxmd.com/read/28647292/risk-factors-of-refeeding-syndrome-in-malnourished-older-hospitalized-patients
#1
Maryam Pourhassan, Ingeborg Cuvelier, Ilse Gehrke, Christian Marburger, Mirja Katrin Modreker, Dorothee Volkert, Hans-Peter Willschrei, Rainer Wirth
BACKGROUND & AIMS: Despite the high prevalence of malnutrition among older hospitalized persons, it is unknown how many of these malnourished patients are at risk of developing the refeeding syndrome (RFS). In this study, we sought to compare the prevalence and severity of malnutrition among older hospitalized patients with prevalence of known risk factors of RFS. METHODS: This cross-sectional multicenter-study investigated older participants who were consecutively admitted to the geriatric acute care ward...
June 10, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28647239/fluoride-removal-by-al-ti-and-fe-hydroxides-and-coexisting-ion-effect
#2
Jianfeng Zhang, Timothy E Brutus, Jiemin Cheng, Xiaoguang Meng
Batch experiments were conducted to evaluate fluoride removal by Al, Fe, and Ti-based coagulants and adsorbents, as well as the effects of coexisting ions and formation of aluminum-fluoride complexes on fluoride removal by co-precipitation with alum (Al2(SO4)3·18H2O). Aluminum sulfate was more efficient than the other coagulants for fluoride removal in the pH range between 6 and 8. Nano-crystalline TiO2 was more effective for fluoride removal than Al and Fe hydroxides in a pH range of 3-5. Coexisting anions in water decreased the removal of fluoride in the order: phosphate (2...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28643161/nonlinear-biotic-ligand-model-for-assessing-alleviation-effects-of-ca-mg-and-k-on-cd-toxicity-to-soybean-roots
#3
Bo-Ching Chen, Pin-Jie Wang, Pei-Chi Ho, Kai-Wei Juang
Developing a nonlinear biotic ligand model (BLM) that considers the geometrical constraints for binding of different cations on biotic ligands will provide more reliable details about the hypothetical mechanism governing the alleviation of cadmium (Cd) toxicity by coexistent cations. Soybean seedlings under Cd stress produced by various activities of coexistent cations such as calcium (Ca(2+)), magnesium (Mg(2+)), and potassium (K(+)) were hydroponically assayed for Cd toxicity to soybean roots. The Cd(2+) activity resulting in 50% reduction of root elongation (RE), EA 50, was used for assessing the Cd toxicity to the soybean seedling...
June 22, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28643123/study-of-the-interactions-of-dissolved-organic-matter-with-zinc-ion-and-the-impact-of-competitive-metal-ions-ca-2-and-mg-2-by-in-situ-absorbance
#4
Tianyu Zhang, Tao Wang, Yujuan Lu
The bioavailability and toxicity of zinc to aquatic life depend on dissolved organic matter (DOM), such as Suwannee River Fulvic Acid (SRFA), which plays an important role in the speciation of zinc. This study examined reactions of SRFA with zinc at different concentrations from pH 3.0 to 9.0, and competitive binding of calcium/magnesium and zinc to SRFA at pH 6.0, using in situ absorbance. Interactions of Zn(2+) with SRFA chromophores were evidenced by the emergence of features in Zn-differential spectra. Among all Zn(2+)-SRFA systems, dominant peaks, located at 235, 275 and 385 nm, and the highest intensity at 235 nm indicated the replacement of protons by the bound Zn(2+)...
June 22, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28642473/predicting-effects-on-oxaliplatin-clearance-in-vitro-kinetic-and-clinical-studies-of-calcium-and-magnesium-mediated-oxaliplatin-degradation
#5
Catherine H Han, Prashannata Khwaounjoo, Andrew G Hill, Gordon M Miskelly, Mark J McKeage
This study evaluated the impact of calcium and magnesium on the in vitro degradation and in vivo clearance of oxaliplatin. Intact oxaliplatin and Pt(DACH)Cl2 were measured in incubation solutions by HPLC-UV. A clinical study determined changes in plasma concentrations of calcium and magnesium in cancer patients and their impact on oxaliplatin clearance. Kinetic analyses modelled oxaliplatin degradation reactions in vitro and contributions to oxaliplatin clearance in vivo. Calcium and magnesium accelerated oxaliplatin degradation to Pt(DACH)Cl2 in chloride-containing solutions in vitro...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28641222/theoretical-evaluation-on-selective-adsorption-characteristics-of-alkali-metal-based-sorbents-for-gaseous-oxidized-mercury
#6
Hongjian Tang, Yufeng Duan, Chun Zhu, Tianyi Cai, Chunfeng Li, Liang Cai
Alkali metal-based sorbents are potential for oxidized mercury (Hg(2+)) selective adsorption but show hardly effect to elemental mercury (Hg(0)) in flue gas. Density functional theory (DFT) was employed to investigate the Hg(0) and HgCl2 adsorption mechanism over alkali metal-based sorbents, including calcium oxide (CaO), magnesium oxide (MgO), potassium chloride (KCl) and sodium chloride (NaCl). Hg(0) was found to weakly interact with CaO (001), MgO (001), KCl (001) and NaCl (001) surfaces while HgCl2 was effectively adsorbed on top-O and top-Cl sites...
June 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28640639/alkaline-earth-centered-co-homologation-reduction-and-amine-carbonylation
#7
Mathew D Anker, Christos E Kefalidis, Yan Yang, Jian Fang, Michael S Hill, Mary F Mahon, Laurent Maron
Reactions of -diketiminato magnesium and calcium hydrides with 1 atmosphere of CO result in a reductive coupling process to produce the corresponding derivatives of the cis-ethenediolate dianion. Computational (DFT) analysis of this processes mediated by Ca, Sr and Ba highlight a common mechanism and a facility for the reaction that increases with increasing alkaline earth (Ae) atomic weight. Reaction of CO with PhSiH3 in the presence of the magnesium or calcium hydrides results in catalytic reduction to methylsilane and methylene silylether products respectively...
June 22, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28635075/salts-influence-cathechins-and-flavonoids-encapsulation-in-liposomes-a-molecular-dynamics-investigation
#8
Emiliano Laudadio, Giovanna Mobbili, Cristina Minnelli, Luca Massaccesi, Roberta Galeazzi
Cathechins and flavonoids are responsible of numerous health benefits. Two of the most representatives' compounds for their antioxidant and therapeutic effects are Epigallocatechin 3-Gallate (EGCG), from green tea extracts, and morelloflavone (MF), from Garcinia dulcis. Here we explore, by atomistic Molecular Dynamics simulations, how EGCG and MF interact with lipid bilayers and we show the salts' influence on their encapsulation degree in neutral liposomes. As a result, we found out that EGCGs naturally bind to the hydrophilic regions of phospholipids, positioning themselves mostly at the interface between water and lipid phases...
June 21, 2017: Molecular Informatics
https://www.readbyqxmd.com/read/28634410/climate-response-to-the-8-2-ka-event-in-coastal-california
#9
Jessica L Oster, Warren D Sharp, Aaron K Covey, Jansen Gibson, Bruce Rogers, Hari Mix
A fast-growing stalagmite from the central California coast provides a high-resolution record of climatic changes synchronous with global perturbations resulting from the catastrophic drainage of proglacial Lake Agassiz at ca. 8.2 ka. High frequency, large amplitude variations in carbon isotopes during the 8.2 ka event, coupled with pulsed increases in phosphorus concentrations, indicate more frequent or intense winter storms on the California coast. Decreased magnesium-calcium ratios point toward a sustained increase in effective moisture during the event, however the magnitude of change in Mg/Ca suggests this event was not as pronounced on the western North American coast as anomalies seen in the high northern latitudes and monsoon-influenced areas...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28627554/group-2-metal-mg-ca-sr-silylamides-supported-by-a-cyclen-derived-macrocyclic-polyamine
#10
Debabrata Mukherjee, Satoru Shirase, Klaus Beckerle, Thomas P Spaniol, Kazushi Mashima, Jun Okuda
Heteroleptic bis(silyl)amides of magnesium and calcium [(L)M{N(SiMe3)2}] [M = Mg, Ca; LH = 1,4,7-trimethyl-1,4,7,10-tetraazacyclododecane; (Me3TACD)H] were previously synthesized from LH and [M{N(SiMe3)2}2]. Strontium bis(silyl)amides [Sr{N(SiMe3)2}2(thf)2] and [Sr{N(SiHMe2)2}2(thf)2/3] reacted with LH to give different types of products, depending on the presence of the β-SiH function. While the former underwent protonolysis to give the amido-bridged dimer [(L)Sr{N(SiMe3)2}]2 (1), the latter gave the adduct [(LH)Sr{N(SiHMe2)2}2] (2) as a stable solid...
June 19, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28627205/a-low-fermentable-oligo-di-mono-saccharides-and-polyols-fodmap-diet-is-a-balanced-therapy-for-fibromyalgia-with-nutritional-and-symptomatic-benefits
#11
Ana Paula Marum, Cátia Moreira, Pablo Tomas-Carus, Fernando Saraiva, Catarina Sousa Guerreiro
INTRODUCTION: Fibromyalgia is a chronic rheumatic disease producing widespread pain, associated to a major comorbidity -irritable bowel syndrome. Low FODMAPS diet (low fermentable oligo-di-mono-saccharides and polyols diet) has been effective in controlling irritable bowel syndrome symptoms. Overweight is an aggravating factor for fibromyalgia. We studied effects of low fermentable oligo-di-mono-saccharides and polyols diets on fibromyalgia symptoms and weight status. METHODS: A longitudinal study was performed on 38 fibromyalgia patients using a four-week, repeated assessment as follow: M1 = first assessments/presentation of individual low fermentable oligo-di-mono-saccharides and polyols diet; M2 = second assessments/reintroduction of FODMAPs; M3 = final assessments/nutritional counselling...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28627057/vitamin-d-metabolism-in-growing-pigs-influence-of-uvb-irradiation-and-dietary-vitamin-d-supply-on-calcium-homeostasis-its-regulation-and-bone-metabolism
#12
E Kolp, M R Wilkens, W Pendl, B Eichenberger, A Liesegang
The aim of this study was to prove whether pigs are able to synthesize vitamin D (vitD) in the skin and to investigate the influence of ultraviolet irradiation (UVB) on vitD status and calcium (Ca) homeostasis of growing pigs. Thirty-two 11-week-old pigs were kept without access to sunlight and divided into four groups receiving the following treatment in a 2 × 2 factorial design: (i) UVB irradiation or not and (ii) vitD in feed or not. Blood, urine and faeces were sampled every third week. In serum, vitD metabolites, Ca, phosphorus (P), magnesium (Mg) and bone markers were analysed...
June 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28624948/metal-release-from-contaminated-leaf-litter-and-leachate-toxicity-for-the-freshwater-crustacean-gammarus-fossarum
#13
Florence Maunoury-Danger, Vincent Felten, Clément Bojic, Fabrice Fraysse, Mar Cosin Ponce, Odile Dedourge-Geffard, Alain Geffard, François Guérold, Michael Danger
Industrialization has left large surfaces of contaminated soils, which may act as a source of pollution for contiguous ecosystems, either terrestrial or aquatic. When polluted sites are recolonized by plants, dispersion of leaf litter might represent a non-negligible source of contaminants, especially metals. To evaluate the risks associated to contaminated leaf litter dispersion in aquatic ecosystems, we first measured the dynamics of metal loss from leaf litter during a 48-h experimental leaching. We used aspen (Populus tremula L...
June 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28621786/alkali-and-alkaline-earth-metal-salts-of-tetrazolone-structurally-interesting-and-excellently-thermostable
#14
Piao He, Le Wu, Jin-Ting Wu, Xin Yin, Michael Gozin, Jian-Guo Zhang
Tetrazolone (5-oxotetrazole) was synthesized by a moderate strategy through three steps (addition, cyclization and catalytic hydrogenation) avoiding the unstable intermediate diazonium, as reported during the previous preparation. Alkali and alkaline earth metal salts with lithium (1), sodium (2), potassium (3), rubidium (4) caesium (5), magnesium (6), calcium (7), strontium (8) and barium (9) were prepared and fully characterized using elemental analysis, IR and NMR spectroscopy, DSC and TG analysis. All metal salts were characterized via single-crystal X-ray diffraction...
June 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28620360/cytr-homolog-of-pectobacterium-carotovorum-subsp-carotovorum-controls-air-liquid-biofilm-formation-by-regulating-multiple-genes-involved-in-cellulose-production-c-di-gmp-signaling-motility-and-type-iii-secretion-system-in-response-to-nutritional-and-environmental
#15
M M Haque, M M H Oliver, Kamrun Nahar, Mohammad Z Alam, Hisae Hirata, Shinji Tsuyumu
Pectobacterium carotovorum subsp. carotovorum [Pcc (formerly Erwinia carotovora subsp. carotovora)] PC1 causes soft-rot disease in a wide variety of plant species by secreting multiple pathogenicity-related traits. In this study, regulatory mechanism of air-liquid (AL) biofilm formation was studied using a cytR homolog gene deletion mutant (ΔcytR) of Pcc PC1. Compared to the wild type (Pcc PC1), the ΔcytR mutant produced fragile and significantly (P < 0.001) lower amounts of AL biofilm on salt-optimized broth plus 2% glycerol (SOBG), yeast peptone dextrose adenine, and also on King's B at 27°C after 72 h incubation in static condition...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28618760/changes-in-the-serum-liver-and-renal-cortical-lipids-and-electrolytes-in-rabbits-with-cisplatin-induced-nephrotoxicity
#16
Abdelgayoum Ahmed Abdel-Gayoum, Mohamed Hamza Sulaiman Ahmida
BACKGROUND/AIM: Cisplatin is an anticancer drug that can induce nephrotoxicity. Its toxicity is associated with dyslipidemia and disturbed electrolyte balance. In the present study we investigated the changes in serum lipid profile and electrolyte levels and their contents in kidney and liver tissues of rabbits treated with cisplatin. MATERIALS AND METHODS: Twenty-eight adult male New Zealand White rabbits were used in the experiment. Animals of groups C, P1, and P2 were injected with saline, cisplatin (4...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28613261/identifying-eating-occasion-based-opportunities-to-improve-the-overall-diets-of-australian-adolescents
#17
Flavia Fayet-Moore, Andrew McConnell, Jean Kim, Kevin C Mathias
Adolescents in Australia have a poor dietary intake, leading to large numbers of them being at risk for inadequate intake of micronutrients, and excessive intake of less healthful dietary components. This study examined dietary intakes at multiple eating occasions to identify opportunities for more targeted recommendations and strategies to improve dietary intakes among adolescents. Data from the first 24-h recall of 14-18 years old in the 2011-2012 National Nutrition and Physical Activity Survey were analysed (n = 772)...
June 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28612063/bioelements-in-hair-of-children-with-selected-neurological-disorders
#18
Jan Józefczuk, Wiktoria Kasprzycka, Rafał Czarnecki, Alfreda Graczyk, Paweł Józefczuk, Magda Krzysztof, Urszula Lampart, Ewa Mrozowska-Ząbek, Weronika Surdy, Róża Kwiatkowska-Graczyk
We have analyzed concentrations of magnesium (Mg), calcium (Ca), copper (Cu), zinc (Zn) and iron (Fe) in hair of a group of 82 children with mental retardation, in which 9 patients suffered from epilepsy, 18 from the Down's syndrome and 55 from cerebral palsy. Girls comprised little over 50% of the patients. In the group of boys with epilepsy, we found Mg, Ca, Cu and Fe deficiency, and normal level of Zn. In the group of girls with epilepsy, apart from low Fe concentration, a high level of Ca, Mg, Zn, and Cu was noted...
2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28606572/effect-of-dietary-fatty-acid-and-micronutrient-intake-energy-ratio-on-serum-diamine-oxidase-activity-in-healthy-women
#19
Makoto Miyoshi, Manami Ueno, Mari Matsuo, Yasuhiro Hamada, Michiko Takahashi, Masashi Yamamoto, Ikuko Yamamoto, Reiko Mikajiri, Satoko Tabuchi, Kumiko Wakida, Misa Yamanishi, Midori Hirai, Makoto Usami
OBJECTIVE: Serum diamine oxidase (DAO) activity varies to a greater extent in women than in men. DAO activity during the luteal phase was higher than that during the follicular phase in healthy women. Recent reports have indicated that duodenal lipid infusion increased DAO activity in the intestinal lymph in rats. The aim of this study was to elucidate the effect of dietary nutrient intake on serum DAO activity in healthy women. METHODS: Thirty-four healthy Japanese women were recruited...
July 2017: Nutrition
https://www.readbyqxmd.com/read/28604516/mineral-intake-and-status-of-cow-s-milk-allergic-infants-consuming-an-amino-acid-based-formula
#20
B M Harvey, S R B M Eussen, Lucien F Harthoorn, A W Burks
Data on the mineral status of infants with cow's milk allergy (CMA) consuming an amino acid-based formula (AAF) have not been published. The present study aims to assess mineral status of term infants aged 0-8 months diagnosed with CMA receiving an AAF for 16 weeks. Serum concentrations of calcium, phosphorus, chloride, sodium, potassium, magnesium and ferritin were determined in 82 subjects at baseline and in 66 subjects after 16 weeks on AAF using standard methods and evaluated against age-specific reference ranges...
June 9, 2017: Journal of Pediatric Gastroenterology and Nutrition
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