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Calcium magnesium

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https://www.readbyqxmd.com/read/29785603/trace-and-macro-elements-in-the-femoral-bone-as-indicators-of-long-term-environmental-exposure-to-toxic-metals-in-european-brown-bear-ursus-arctos-from-croatia
#1
Maja Lazarus, Tatjana Orct, Slaven Reljić, Marija Sedak, Nina Bilandžić, Jasna Jurasović, Đuro Huber
We explored the long-term accumulation of aluminium, strontium, cadmium and lead in the compact and trabecular bone of the femoral epiphysis, metaphysis and diaphysis in 41 brown bears (Ursus arctos) from Croatia. Also, we assessed their influence on macro and trace elements (sodium, magnesium, phosphorus, potassium, calcium, manganese, iron, cobalt, copper, zinc and barium) in bears' bone. There were no sex differences in element levels in general, while age was associated with bone length and levels of all elements, except for cadmium...
May 21, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29784349/monitoring-glucose-calcium-and-magnesium-levels-in-saliva-as-a-non-invasive-analysis-by-sequential-injection-multi-parametric-determination
#2
Ana Machado, Rui Maneiras, Adriano A Bordalo, Raquel B R Mesquita
The use of saliva for diagnose and surveillance of systemic illnesses, and general health has been arousing great interest worldwide, emerging as a highly desirable goal in healthcare. The collection is non-invasive, stress-free, inexpensive, and simple representing a major asset. Glucose, calcium, and magnesium concentration are three major parameters evaluated in clinical context due to their essential role in a wide range of biochemical reactions, and consequently many health disorders. In this work, a spectrophotometric sequential injection method is described for the fast screening of glucose, calcium, and magnesium in saliva samples...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29784303/simple-icp-oes-based-method-for-determination-of-selected-elements-in-brewed-ground-and-soluble-coffees-prior-to-evaluation-of-their-intake-and-chemical-fractionation
#3
Pawel Pohl, Anna Szymczycha-Madeja, Maja Welna
A simple method of simultaneous determination of aluminum (Al), barium (Ba), calcium (Ca), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), nickel (Ni), strontium (Sr) and zinc (Zn) in brews of ground and soluble coffees was proposed. It relied on acidification of brews with HNO3 to 1.3 mol L-1 and their analysis by inductively coupled plasma optical emission spectrometry. Precision of 0.1-9% and detection limits from 0.07 ng mL-1 (Sr) to 3 ng mL-1 (Ni) were achieved. Trueness of the method was verified by comparison of results with those achieved with wet digestion and by the recovery study, and was better than 5%...
October 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29784017/investigating-aquifer-contamination-and-groundwater-quality-in-eastern-terai-region-of-nepal
#4
Sanjay Mahato, Asmita Mahato, Pankaj Kumar Karna, Nisha Balmiki
OBJECTIVE: This study aims at assessing the groundwater quality of the three districts of Eastern Terai region of Nepal viz. Morang, Jhapa, Sunsari using physicochemical characteristics and statistical approach so that possible contamination of water reservoir can be understood. pH, temperature, conductivity, turbidity, color, total dissolved solids, fluorides, ammonia, nitrates, chloride, total hardness, calcium hardness, calcium, magnesium, total alkalinity, iron, manganese, arsenic have to be analyzed to know the present status of groundwater quality...
May 21, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29783873/current-and-potential-treatment-options-for-hyperphosphatemia
#5
Fabio Carfagna, Lucia Del Vecchio, Giuseppe Pontoriero, Francesco Locatelli
Hyperphosphatemia is common in late stages of chronic kidney disease and is often associated with elevated parathormone levels, abnormal bone mineralization, extra-osseous calcification, and increased risk of cardiovascular events and death. Several classes of oral phosphate binders are available to help control plasma phosphorus levels. Although effective at lowering serum phosphorus, they all have safety, tolerability, and compliance issues that need to be considered when selecting which one to use. Areas covered: This paper reviews the most established treatment options for hyperphosphatemia, in patients with chronic kidney disease, focusing on the new inhibitors of active phosphate absorption...
May 21, 2018: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/29781031/spectroscopic-evidence-for-hydration-and-dehydration-of-lipid-bilayers-upon-interaction-with-metal-ions-a-new-physical-insight
#6
Soumya Kanti De, Nishu Kanwa, Mirajuddin Ahamed, Anjan Chakraborty
In this manuscript, we investigate the interactions of different metal ions with zwitterionic phospholipid bilayers of different chain lengths using the well-known membrane probe PRODAN and steady state and time resolved fluorescence spectroscopy. We used three zwitterionic lipids that are widely different in their phase transition temperature, namely, dipalmitoylphosphatidylcholine (DPPC), 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC), and 2-oleoyl-1-palmitoyl-sn-glycero-3-phosphocholine (POPC) and salts of zinc (Zn), calcium (Ca) and magnesium (Mg)...
May 21, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29780355/therapeutic-interference-with-vascular-calcification-lessons-from-klotho-hypomorphic-mice-and-beyond
#7
REVIEW
Florian Lang, Christina Leibrock, Lisann Pelzl, Meinrad Gawaz, Burkert Pieske, Ioana Alesutan, Jakob Voelkl
Medial vascular calcification, a major pathophysiological process associated with cardiovascular disease and mortality, involves osteo-/chondrogenic transdifferentiation of vascular smooth muscle cells (VSMCs). In chronic kidney disease (CKD), osteo-/chondrogenic transdifferentiation of VSMCs and, thus, vascular calcification is mainly driven by hyperphosphatemia, resulting from impaired elimination of phosphate by the diseased kidneys. Hyperphosphatemia with subsequent vascular calcification is a hallmark of klotho-hypomorphic mice, which are characterized by rapid development of multiple age-related disorders and early death...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29778760/electrochemical-disinfection-of-groundwater-for-civil-use-an-example-of-an-effective-endogenous-advanced-oxidation-process
#8
Achille De Battisti, Paolo Formaglio, Sergio Ferro, Mustafa Al Aukidy, Paola Verlicchi
Lab-scale experiments using real groundwater were carried out using the CabECO® reactor system in order to evaluate its suitability for producing safe water, acceptable for civil purposes. Trials were carried out in discontinuous and in continuous mode, analyzing the influence of electrical and hydraulic process parameters on the quality of treated water. The use of highly boron-doped diamond electrodes in the reactor allowed the electrosynthesis of considerable amounts of ozone. Because of the relatively high amount of chloride in the groundwater samples, a mixture of HOCl/ClO- was also synthesized...
May 12, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778168/development-of-a-novel-myconanomining-approach-for-the-recovery-of-agriculturally-important-elements-from-jarosite-waste
#9
Ankita Bedi, Braj Raj Singh, Sunil K Deshmukh, Nisha Aggarwal, Colin J Barrow, Alok Adholeya
In this study, an ecofriendly and economically viable waste management approach have been attempted towards the biosynthesis of agriculturally important nanoparticles from jarosite waste. Aspergillus terreus strain J4 isolated from jarosite (waste from Debari Zinc Smelter, Udaipur, India), showed good leaching efficiency along with nanoparticles (NPs) formation under ambient conditions. Fourier-transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM) confirmed the formation of NPs...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29775933/observing-hno-3-release-dependent-upon-metal-complexes-in-malonic-acid-nitrate-droplets
#10
Xu Shao, Feng-Min Wu, Hui Yang, Shu-Feng Pang, Yun-Hong Zhang
Although the dicarboxylic acid has been reported to react with nitrate for aged internally mixed aerosols in atmosphere, the quantitative nitrate depletion dependent upon composition in particles is still not well constrained. The chemical composition evolutions for malonic acid/sodium nitrate (MA/SN), malonic acid/magnesium nitrate (MA/MN) and malonic acid/calcium nitrate (MA/CN) particles with the organic to inorganic molar ratio (OIR) of 1:1 are investigated by vacuum Fourier transform infrared spectroscopy (FTIR)...
May 9, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29773179/some-bottled-water-may-be-salubrious
#11
Leslie M Klevay
Hard drinking water seems protective against cardiovascular disease compared to soft water. Published data on calcium and magnesium in bottled water products were evaluated to determine water hardness. Data on water chemistry of thirty-three products were obtained from the internet and hardness, as calcium carbonate, was calculated. Approximately two thirds of the products were soft according to criteria of the US Geological Survey; only one fifth were very hard. Beer and wine also were found to be very hard...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29773011/antibacterial-activity-of-novel-strains-of-bacteriophages-an-experimental-approach
#12
Muhammad Imran Qadir, Zunera Chauhdary
The evolution of antibiotic resistance in bacteria has increased research in the development of alternative therapies to conventional drugs. In this study, isolated phages were characterized and antibacterial activity was determined by standard agar disc diffusion method. The phages showed maximum propagation at 37°C to 40°C and highest viability at pH 7. Sugars influenced the bacteriophage viability. Sodium chloride decreased the phage propagation. Calcium chloride and magnesium chloride increased the phage propagation up to a certain limit...
2018: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/29772019/the-effect-of-abandonment-on-vegetation-composition-and-soil-properties-in-molinion-meadows-sw-poland
#13
Grzegorz Swacha, Zoltán Botta-Dukát, Zygmunt Kącki, Daniel Pruchniewicz, Ludwik Żołnierz
Intermittently wet meadows of the Molinion alliance, as with many other grasslands of high-nature value, have become increasingly exposed to abandonment due to their low economic value. The potential consequences of land abandonment are the decrease in species diversity and environmental alterations. The issue of land-use induced changes in plant species composition and soil physico-chemical parameters have been rarely studied in species-rich intermittently wet grasslands. In this study we attempt to i) to identify determinants of plant species composition patterns and ii) to investigate the effect of cessation of mowing on vegetation composition and soil properties...
2018: PloS One
https://www.readbyqxmd.com/read/29767557/polycystin-1-dysfunction-impairs-electrolyte-and-water-handling-in-a-renal-pre-cystic-mouse-model-for-adpkd
#14
Eric H J Verschuren, Sami G Mohammed, Wouter N Leonhard, Caro Overmars-Bos, Kimberly A M Veraar, Joost G J Hoenderop, René J M Bindels, Dorien J M Peters, Francisco J Arjona
The PKD1 gene encodes polycystin-1 (PC1), a mechanosensor triggering intracellular responses upon urinary flow sensing in kidney tubular cells. Mutations in PKD1 lead to autosomal dominant polycystic kidney disease (ADPKD). The involvement of PC1 in renal electrolyte handling remains unknown since renal electrolyte physiology in ADPKD patients has only been characterized in cystic ADPKD. We thus studied the renal electrolyte handling in inducible kidney-specific Pkd1 knockout (iKsp-Pkd1-/-) mice manifesting a pre-cystic phenotype...
May 16, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29766690/garden-nasturtium-tropaeolum-majus-l-a-source-of-mineral-elements-and-bioactive-compounds
#15
Karolina Jakubczyk, Katarzyna Janda, Katarzyna Watychowicz, Jagoda Łukasiak, Jolanta Wolska
The garden nasturtium (Tropaeolum majus L.) belongs to the family Tropaeolaceae. Native to South America it was brought to Europe in XVI century. It is a plant with numerous healing properties. Medicinal plants such as the garden nasturtium contain trace elements and bioactive compounds which can be easily absorbed by the human body. The flowers and other parts of the garden nasturtium are a good source of micro elements such as potassium, phosphorus, calcium and magnesium, and macro elements, especially of zinc, copper and iron...
2018: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/29766422/migration-and-leaching-characteristics-of-base-cation-indicating-environmental-effects-on-soil-alkalinity-in-a-karst-area
#16
Mingzhen Ma, Yang Gao, Xianwei Song, Sophie M Green, Bailian Xiong, Jennifer A J Dungait, Tao Peng, Timothy A Quine, Xuefa Wen, Nianpeng He
In karst areas, rock dissolution often results in the development of underground networks, which act as subterranean pathways for rapid water and nutrient (and possibly soil) loss during precipitation events. Loss of soluble nutrients degrades surface soils and decreases net primary productivity, so it is important to establish flow pathways and quantify nutrient loss during rainfall events of different magnitudes. We conducted a simulated rainfall experiment in karst and nonkarst areas to compare the concentration of nutrients in surface and subsurface flow water and effects on soil alkalinity in three lithologic soil formations under five different rainfall intensity treatments...
May 15, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29765167/the-mineral-content-of-the-hard-dental-tissue-of-mesiodens
#17
Sanja Tanaskovic-Stankovic, Irena Tanaskovic, Nemanja Jovicic, Marina Miletic-Kovacevic, Tatjana Kanjevac, Zoran Milosavljevic
OBJECTIVE: Mesiodens is the most common form of supernumerary tooth mainly located between the maxillary central incisors. Its etiology is not completely understood but both genetic and environmental factors are assumed. The degree of mineralization and inorganic element content in hard tooth tissues is poorly understood as well as is the durability and suitability for allo- and auto-transplantation. Therefore aim of this study was to examine the content of inorganic elements. MATERIALS AND METHODS: This study included 26 mesiodens teeth and 26 normal central incisor teeth as controls...
May 15, 2018: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29764268/magnesium-as-an-intrinsic-component-of-human-otoconia
#18
Leif Erik Walther, Jana Wulfes, Alexander Blödow, Rüdiger Kniep
OBJECTIVES: To investigate morphology changes of artificial otoconia (CGC) in the presence of magnesium during growth under in vitro conditions. METHODS: Investigating human otoconia by environmental scanning electron microscope and determining their magnesium content by energy-dispersive X-ray microanalysis (EDX). Comparing structural and morphological data of human and artificial otoconia (CGC, Ca1 Mg0 ) without and with magnesium substitution (Ca1-x Mgx ). RESULTS: EDX- and X-ray data reveals that the inorganic component in human otoconia consists of calcite containing a minor amount of magnesium substitution (Ca1-x Mgx )...
May 15, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29761226/renal-stone-composition-does-not-affect-the-outcome-of-percutaneous-nephrolithotomy-in-children
#19
Onur Kaygısız, Fethi Ahmet Türegün, Nihat Satar, Ender Özen, Serdar Toksöz, Hasan Serkan Doğan, Mehmet Mesut Pişkin, Volkan İzol, Şaban Sarıkaya, Hakan Kılıçarslan, Tufan Çiçek, Ahmet Öztürk, Serdar Tekgül, Bülent Önal
PURPOSE: We sought to investigate the association between renal stone composition and percutaneous nephrolithotomy outcomes in pediatric patients and define the characterization of the stone composition. METHODS: The data of 1157 children who underwent percutaneous nephrolithotomy between 1991 and 2012 were retrieved from the multicenter database of the Turkish Pediatric Urology Society. The study population comprised 359 children (160 girls, 199 boys) with stone analyses...
May 14, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29759248/qualitative-and-quantitative-analysis-of-human-nails-to-find-correlation-between-nutrients-and-vitamin-d-deficiency-using-libs-and-icp-aes
#20
M A Almessiere, R Altuwiriqi, M A Gondal, R K AlDakheel, H F Alotaibi
In this work, we analysed human fingernails of people who suffer from vitamin D deficiency using the laser-induced breakdown spectroscopy(LIBS) and inductively coupled plasma atomic emission spectroscopy (ICP-AES)techniques. The measurements have been conducted on 71 nail samples collected randomly from volunteers of different genders and ages ranged between 20 and 50 years. The main aim of this study is to find the correlation between vitamin D deficiency and the intensity of some dominated lines in the LIBS spectra...
August 1, 2018: Talanta
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