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https://www.readbyqxmd.com/read/29146231/is-hungry-bone-syndrome-a-cause-of-postoperative-hypocalcemia-after-total-thyroidectomy-in-thyrotoxicosis-a-prospective-study-with-bone-mineral-density-correlation
#1
Poongkodi Karunakaran, Chandrasekaran Maharajan, Srinivasan Ramalingam, Suresh Venkatesh Rachmadugu
BACKGROUND: Hungry bone syndrome is a well-established cause of postoperative hypocalcemia in thyrotoxicosis. To date, the incidence of hungry bone syndrome after total thyroidectomy is unclear. This prospective study examined the incidence of postthyroidectomy hungry bone syndrome and its correlation with preoperative bone mineral density. METHODS: Forty thyrotoxic subjects (Group A; age: mean ± SD; 36.5 ± 9.8 years) and 40 euthyroid controls with benign thyroid nodules (Group B) undergoing total thyroidectomy were evaluated for preoperative bone mineral density and serum calcium, magnesium, phosphorus, parathyroid hormone, alkaline phosphatase, and 25-Hydroxy Vitamin D serially...
November 14, 2017: Surgery
https://www.readbyqxmd.com/read/29141585/transcriptome-analysis-in-petals-and-leaves-of-chrysanthemums-with-different-chlorophyll-levels
#2
Akemi Ohmiya, Katsutomo Sasaki, Kenji Nashima, Chihiro Oda-Yamamizo, Masumi Hirashima, Katsuhiko Sumitomo
BACKGROUND: Chlorophylls (Chls) are magnesium-containing tetrapyrrole macromolecules responsible for the green color in plants. The Chl metabolic pathway has been intensively studied and nearly all the enzymes involved in the pathway have been identified and characterized. Synthesis and activity of these enzymes are tightly regulated in tissue- and developmental stage-specific manners. Leaves contain substantial amounts of Chls because Chls are indispensable for photosynthesis. In contrast, petals generally contain only trace amounts of Chls, which if present would mask the bright petal color...
November 15, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29136831/rapid-method-for-determination-of-90-sr-in-seawater-by-liquid-scintillation-counting-with-an-extractive-scintillator
#3
Masaki Uesugi, Ryosuke Watanabe, Hiroaki Sakai, Akihiko Yokoyama
A rapid determination method of (90)Sr is developed for the monitoring of seawater around the Fukushima Daiichi Nuclear Power Plant (FDNPP). Three ideas of chemical separation and measurements to accelerate (90)Sr analysis are investigated. Strontium is co-precipitated in a two-step procedure with hydroxyapatite after the removal of magnesium phosphate in the presence of citric acid. The purification process of strontium is in combination with solid phase extraction disks. One or two sheets of Sr Rad disk and cyclic operations are examined to eliminate interfering substances and secure the exchange capacity...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29134805/ion-pairing-and-diffusion-in-magnesium-electrolytes-based-on-magnesium-borohydride
#4
Devon Samuel, Carl Steinhauser, Jeffrey G Smith, Aaron Kaufman, Maxwell D Radin, Junichi Naruse, Hidehiko Hiramatsu, Donald J Siegel
One obstacle to realizing a practical, rechargeable magnesium-ion battery is the development of efficient Mg electrolytes. Electrolytes based on simple Mg(BH4)2 salts suffer from poor salt solubility and/or low conductivity, presumably due to strong ion pairing. Understanding the molecular-scale processes occurring in these electrolytes would aid in overcoming these performance limitations. Toward this goal, the present study examines the solvation, agglomeration, and transport properties of a family of Mg electrolytes based on the Mg(BH4)2 salt using classical molecular dynamics...
November 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29132740/effects-of-using-symbiotics-in-the-clinical-nutritional-evolution-of-patients-with-chronic-pancreatitis-study-prospective-randomized-controlled-double-blind
#5
Patricia Quadros Dos Santos, Jorge C Guedes, Rosangela P de Jesus, Raquel Rocha Dos Santos, Rosemeiri L Fiaconne
Patients with chronic pancreatitis (CP) present malabsorption and changes in nutritional status. In this prospective, randomized, controlled, double-blinded, intervention study, developed at the Clinic of Pancreas, we aimed to assess whether the use of symbiotics changes the nutritional status, the biochemical data and the intestinal rate of these patients. The intervention consisted of administering 12 g/day of symbiotics composed of Lactobacillus casei, Lactobacillus rhamnosus, Lactobacillus acidophilus, Bifidobacterium bifidum and fructooligosaccharides to the intervention group and 12 g/day of medium absorption complex carbohydrate to the control group...
April 2017: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29130577/factors-affecting-the-patency-of-arteriovenous-fistulas-for-hemodialysis-single-center-experience
#6
Radojica V Stolic, Goran Z Trajkovic, Mirjana M Kostic, Branko Mihailovic, Aleksandar N Jovanovic, Bratislav D Lazic, Ivana R Matijasević, Maša D Jaksić, Zlatica M Mirkovic, Tanja N Smilic, Javorka S Mitic
INTRODUCTION: Arteriovenous fistulas (AVFs) are the preferred form vascular access for hemodialysis (HD), as they have a low rate of complications and durable function. The aim of our investigation was to analyze the factors that might influence the function of AVFs. METHODS: Data were taken from the computerized patient record system in the Clinic of Urology and Nephrology, Clinical Center, Kragujevac, Serbia, for a 2-year period. We analyzed patients who had requested re-creation of AVFs as a secondary procedure...
November 12, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/29124638/foliar-application-with-nano-silicon-reduced-cadmium-accumulation-in-grains-by-inhibiting-cadmium-translocation-in-rice-plants
#7
Rui Chen, Changbo Zhang, Yanling Zhao, Yongchun Huang, Zhongqi Liu
Nano-silicon (Si) may be more effective than regular fertilizers in protecting plants from cadmium (Cd) stress. A field experiment was conducted to study the effects of nano-Si on Cd accumulation in grains and other organs of rice plants (Oryza sativa L. cv. Xiangzaoxian 45) grown in Cd-contaminated farmland. Foliar application with 5~25 mM nano-Si at anthesis stage reduced Cd concentrations in grains and rachises at maturity stage by 31.6~64.9 and 36.1~60.8%, respectively. Meanwhile, nano-Si application significantly increased concentrations of potassium (K), magnesium (Mg), and iron (Fe) in grains and rachises, but imposed little effect on concentrations of calcium (Ca), zinc (Zn), and manganese (Mn) in them...
November 9, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29123461/intestinal-absorption-and-factors-influencing-bioavailability-of-magnesium-an-update
#8
REVIEW
Jan Philipp Schuchardt, Andreas Hahn
Background: Information on the bioavailability of the essential mineral Mg2+ is sparse. Objective/Method: Evaluation of the present knowledge on factors influencing the bioavailability and intestinal absorption of Mg2+. Results: Mg2+ is absorbed via a paracellular passive and a transcellular active pathway that involves TRPM6/7 channel proteins. The bioavailability of Mg2+ varies within a broad range, depending on the dose, the food matrix, and enhancing and inhibiting factors...
November 2017: Current Nutrition and Food Science
https://www.readbyqxmd.com/read/29123221/unlocking-the-biomineralization-style-and-affinity-of-paleozoic-fusulinid-foraminifera
#9
Zofia Dubicka, Przemysław Gorzelak
Fusulinids are the most diverse, abundant and geographically widespread Paleozoic foraminifera which are widely considered to possess a "homogeneously microgranular" test microstructure composed of subangular grains of several micrometers in size. However, this texture appears to be a diagenetic artifact. Here we describe well-preserved Devonian calcareous fusulinids (Nanicella) from the Holy Cross Mountains (HCM) in central Poland. Foraminifera from Poland in which the primary nature of tests have not been masked by diagenesis are composed of low magnesium calcite spherical grains up to about 100 nanometers in diameter, identical to those observed in Recent and fossil hyaline foraminifera (Rotaliida, Globothalamea)...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29122714/diethanolamine-modified-pectin-based-core-shell-composites-as-dual-working-gastroretentive-drug-cargo
#10
Hriday Bera, Sanoj Kumar
The current study aimed at developing diethonolamine-modified high-methoxyl pectin (DMP)-alginate (ALG) based core-shell composites for controlled intragastric delivery of metformin HCl (MFM) by combined approach of floating and bioadhesion. DMP with degree of amidation of 48.72% was initially accomplished and characterized by FTIR, DSC and XRD analyses. MFM-loaded core matrices were then fabricated by ionotropic gelation technique employing zinc acetate as cross-linker. The core matrices were further coated by fenugreek gum (FG)-ALG gel membrane via diffusion-controlled interfacial complexation method...
November 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29122367/stabilization-of-arsenic-and-lead-by-magnesium-oxide-mgo-in-different-seawater-concentrations
#11
Kentaro Kameda, Yohey Hashimoto, Yong Sik Ok
Ongoing sea level rise will have a major impact on mobility and migration of contaminants by changing a number of natural phenomena that alter geochemistry and hydrology of subsurface environment. In-situ immobilization techniques may be a promising remediation strategy for mitigating contaminant mobility induced by sea level rise. This study investigated the reaction mechanisms of magnesium oxide (MgO) with aqueous Pb and As under freshwater and seawater using XAFS spectroscopy. Initial concentrations of Pb and As in freshwater strongly controlled the characteristics of the reaction product of MgO...
November 6, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29119879/magnesium-and-zinc-borate-enhance-osteoblastic-differentiation-of-stem-cells-from-human-exfoliated-deciduous-teeth-in-vitro
#12
Yao-Jen Liu, Wen-Ta Su, Po-Hung Chen
Various biocompatible and biodegradable scaffolds blended with biochemical signal molecules with adequate osteoinductive and osteoconductive properties have attracted significant interest in hard tissue engineering regeneration. We evaluated the distinct effects of magnesium borate, zinc borate, and boric acid blended into chitosan scaffold for osteogenic differentiation of stem cells from exfoliated deciduous teeth. Stem cells from exfoliated deciduous teeth cells are a potential source of functional osteoblasts for applications in bone tissue engineering, but the efficiency of osteoblastic differentiation is low, thereby significantly limiting their clinical applications...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/29112048/results-of-a-community-based-randomized-study-comparing-a-clear-liquid-diet-with-a-low-residue-diet-using-a-magnesium-citrate-preparation-for-screening-and-surveillance-colonoscopies
#13
Chandrashekhar Thukral, Sumeet K Tewani, Adam J Lake, Aaron J Shiels, Kathy Geissler, Sara Popejoy, Megan Stafford, Joseph J Vicari
BACKGROUND: Current bowel preparations for colonoscopy include a clear liquid diet (CLD) along with consumption of a laxative. This dietary restriction along with large volume bowel preparations are barriers to compliance and willingness among patients in scheduling screening examinations. The aim of our study was to compare the efficacy and tolerability of a low-volume split dose magnesium citrate bowel preparation in patients on a low-residue diet (LRD) with those on a CLD. METHODS: In this single center, single blinded, randomized controlled trial, patients scheduled for outpatient colonoscopies were assigned to either a CLD or a LRD 1 day before the examination...
November 3, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29109962/micronutrient-intake-in-a-cohort-of-italian-adults-with-type-1-diabetes-adherence-to-dietary-recommendations
#14
Marisa Giorgini, Marilena Vitale, Lutgarda Bozzetto, Ornella Ciano, Angela Giacco, Anna Rivieccio, Ilaria Calabrese, Gabriele Riccardi, Angela A Rivellese, Giovanni Annuzzi
Micronutrients are of fundamental importance in maintaining health status. However, data on their dietary intake are few particularly in persons with diabetes. The aim of this study was to evaluate in adults with type 1 diabetes (T1DM) attending a tertiary-level diabetes center in Southern Italy the intake of micronutrients (both vitamins and minerals) and the adherence to recommendations. Seven-day food records of 60 T1DM patients were analyzed. Micronutrient intake was evaluated based on the Italian food composition tables and expressed as amount per 1000 kcal of energy intake to adjust for possible underreporting...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29102524/the-optimal-bowel-preparation-intervals-before-colonoscopy-a-randomized-study-comparing-polyethylene-glycol-and-low-volume-solutions
#15
Vladimir Kojecky, Jan Matous, Radan Keil, Milan Dastych, Zdena Zadorova, Michal Varga, Radek Kroupa, Jiri Dolina, Miroslav Misurec, Ales Hep, Martin Griva
BACKGROUND & AIMS: The optimal duration of bowel preparation has only been assessed for polyethylene glycol (PEG). The aim of the study was to determine the intervals for achieving a satisfactory quality/tolerability of the preparation using PEG/ascorbic acid (PEGA) and sodium picosulphate/magnesium citrate (SPMC), and to compare them with 4L of PEG. METHODS: A randomized, endoscopist-blinded, multicentre study. The 612 outpatients referred to a colonoscopy, were prepared using PEG, SPMC, PEGA...
November 1, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29101428/composition-of-urinary-calculi-in-infants-a-report-from-an-endemic-country
#16
Mirza Naqi Zafar, Salma Ayub, Hafsa Tanwri, Syed Ali Anwar Naqvi, Syed Adibul Hasan Rizvi
Pediatric urolithiasis remains endemic in low-resource countries where infants constitute 17-40% of all children with urolithiasis. This study reports socio-economic factors, medical history and chemical composition of urinary stones in 976 infants of up to 2 years of age. Between 1992 and 2016, 976 infants presented to our institute with 1038 stones. Chemical composition of stones was analyzed by Fourier transformation infrared spectroscopy (FTIR). The mean age of infants was 19.5 ± 5.74 months with a M:F ratio of 5...
November 3, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29078008/high-precision-determination-of-lithium-and-magnesium-isotopes-utilising-single-column-separation-and-mc-icpms
#17
Madeleine S Bohlin, Sambuddha Misra, Nicholas Lloyd, Henry Elderfield, Mike J Bickle
RATIONALE: Li and Mg isotopes are increasingly used as a combined tool within the geosciences. However, established methods require separate sample purification protocols utilising several column separation procedures. This study presents a single-step cation exchange method for quantitative separation of trace levels of Li and Mg from multiple sample matrices. METHODS: The column method utilises the macro-porous AGMP-50 resin and a high aspect ratio column, allowing quantitative separation of Li and Mg from natural waters, sediments, rocks and carbonate matrices following the same elution protocol...
October 27, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29077944/association-of-serum-magnesium-with-all-cause-mortality-in-patients-with-and-without-chronic-kidney-disease-in-the-dallas-heart-study
#18
Silvia Ferrè, Xilong Li, Beverley Adams-Huet, Naim M Maalouf, Khashayar Sakhaee, Robert D Toto, Orson W Moe, Javier A Neyra
Background: Low serum magnesium (SMg) has been linked to increased mortality and cardiovascular disease (CVD) in the general population. We examined whether this association is similar in participants with versus without prevalent chronic kidney disease (CKD) in the multiethnic Dallas Heart Study (DHS) cohort. Methods: SMg was analyzed as a continuous variable and divided into tertiles. Study outcomes were all-cause death, cardiovascular (CV) death or event, and CVD surrogate markers, evaluated using multivariable Cox regression models adjusted for demographics, comorbidity, anthropometric and biochemical parameters including albumin, phosphorus and parathyroid hormone, and diuretic use...
October 25, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29072368/promoting-photocatalytic-overall-water-splitting-by-controlled-mg-incorporation-in-srtio3-photocatalysts
#19
Kai Han, Yen-Chun Lin, Chia-Min Yang, Ronald Jong, Guido Mul, Bastian Mei
SrTiO3 is a well-known photocatalyst inducing overall water splitting when exposed to UV irradiation of wavelengths < 370 nm. However, the apparent quantum efficiency of SrTiO3 is typically low, even when functionalized with nanoparticles of Pt or Ni@NiO. Here, we introduce a simple solid state preparation method to control the incorporation of magnesium into the perovskite structure of SrTiO3. After deposition of Pt or Ni@NiO, the photocatalytic water splitting efficiency of the Mg:SrTiOx composites is up to 20 times higher as compared to SrTiO3 containing similar catalytic nanoparticles, and an apparent quantum yield (AQY) of 10 % can be obtained in the wavelength range of 300 - 400 nm...
October 26, 2017: ChemSusChem
https://www.readbyqxmd.com/read/29072257/therapeutic-effects-of-a-taurine-magnesium-coordination-compound-on-experimental-models-of-type-2-short-qt-syndrome
#20
Meng-Yao An, Kai Sun, Yan Li, Ying-Ying Pan, Yong-Qiang Yin, Yi Kang, Tao Sun, Hong Wu, Wei-Zhen Gao, Jian-Shi Lou
Short QT syndrome (SQTS) is a genetic arrhythmogenic disease that can cause malignant arrhythmia and sudden cardiac death. The current therapies for SQTS have application restrictions. We previously found that Mg· (NH2CH2CH2SO3)2· H2O, a taurine-magnesium coordination compound (TMCC) exerted anti-arrhythmic effects with low toxicity. In this study we established 3 different models to assess the potential anti-arrhythmic effects of TMCC on type 2 short QT syndrome (SQT2). In Langendorff guinea pig-perfused hearts, perfusion of pinacidil (20 μmol/L) significantly shortened the QT interval and QTpeak and increased rTp-Te (P<0...
October 26, 2017: Acta Pharmacologica Sinica
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