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https://www.readbyqxmd.com/read/29166003/hydrogenation-properties-of-laves-phases-lnmg2-ln-la-ce-pr-nd-sm-eu-gd-tb-ho-er-tm-yb
#1
Anton Werwein, Florian Maaß, Leonhard Y Dorsch, Oliver Janka, Rainer Pöttgen, Thomas C Hansen, Justin Kimpton, Holger Kohlmann
The hydrogenation properties of Laves phases LnMg2 (Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Ho, Er, Tm, Yb) were investigated by thermal analysis, X-ray, synchrotron, and neutron powder diffraction. At 14.0 MPa hydrogen gas pressure and 393 K, PrMg2 and NdMg2 take up hydrogen and form the colorless, ternary hydrides PrMg2H7 (P41212, a = 632.386(6) pm, c = 945.722(11) pm) and NdMg2H7 (P41212, a = 630.354(9) pm, c = 943.018(16) pm). The crystal structures were refined by the Rietveld method from neutron powder diffraction data on the deuterides (PrMg2D7, P41212, a = 630...
November 22, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29165404/benefits-of-nut-consumption-on-insulin-resistance-and-cardiovascular-risk-factors-multiple-potential-mechanisms-of-actions
#2
REVIEW
Yoona Kim, Jennifer B Keogh, Peter M Clifton
Epidemiological and clinical studies have indicated that nut consumption could be a healthy dietary strategy to prevent and treat type 2 diabetes (T2DM) and related cardiovascular disease (CVD). The objective of this review is to examine the potential mechanisms of action of nuts addressing effects on glycemic control, weight management, energy balance, appetite, gut microbiota modification, lipid metabolism, oxidative stress, inflammation, endothelial function and blood pressure with a focus on data from both animal and human studies...
November 22, 2017: Nutrients
https://www.readbyqxmd.com/read/29165310/serum-trace-elements-and-heavy-metal-levels-in-patients-diagnosed-with-chronic-otitis-media-and-their-association-with-surgical-treatment-outcomes
#3
Nazım Bozan, Mehmet Emre Dinç, Halit Demir, Abdulaziz Yalınkılıç, Edip Gönüllü, Mahfuz Turan, Canan Demir, Ayşe Arslan, Hüseyin Özkan, Pınar Kundi, Ahmet Faruk Kıroğlu
OBJECTIVE: To determine the serum iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), magnesium (Mg), cobalt (Co), and lead (Pb) levels in patients with chronic otitis media (COM) and to evaluate the association of the serum levels of these elements with treatment outcomes. MATERIALS AND METHODS: Thirty-one healthy volunteers and 31 patients with COM were prospectively included in this study. Serum levels of Fe, Zn, Mn, Mg, Cu, Co, and Pb were determined by an atomic absorption UNICAM-929 spectrophotometer...
November 21, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29163958/systematic-review-and-meta-analysis-sodium-picosulphate-with-magnesium-citrate-as-bowel-preparation-for-colonoscopy
#4
REVIEW
Ilvy van Lieshout, Isabelle D Munsterman, Anne M Eskes, Jolanda M Maaskant, René van der Hulst
Background: An effective and tolerable bowel preparation is important to secure quality of colonoscopies. It remains unclear if sodium picosulphate with magnesium citrate (SPMC), which is considered a tolerable bowel preparation agent, is also an effective alternative for polyethylene glycol (PEG) and sodium phosphate (NaP). Aim: The aim of this article is to compare effectiveness of SPMC to PEG and NaP through assessment of quality of bowel cleansing measured by validated tools...
November 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29163622/transcriptome-and-metabolome-analyses-provide-insights-into-the-occurrence-of-peel-roughing-disorder-on-satsuma-mandarin-citrus-unshiu-marc-fruit
#5
Xiao-Peng Lu, Fei-Fei Li, Jiang Xiong, Xiong-Jun Cao, Xiao-Chuan Ma, Zi-Mu Zhang, Shang-Yin Cao, Shen-Xi Xie
Roughing disorder (RD) is a significant quality barrier in citrus fruit, prevalent on easy-peeling mandarins. As RD is not yet well-understood, this study aimed to examine the changes and synergic molecular processes involved in peel RD. Peel with RD was induced by severely defruiting Satsuma mandarin trees. Morphology observations, RNA-sequencing, and targeted and untargeted metabolic analyses were conducted. The results showed that the primary metabolites of sugars, organic acids and amino acids are dramatically changed in RD peel...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29163197/variation-in-enamel-formation-genes-influences-enamel-demineralization-in-vitro-in-a-streptococcus-mutans-biofilm-model
#6
Liangyue Pang, Qinghui Zhi, Peilin Zhuang, Lixia Yu, Ye Tao, Huancai Lin
Genetic studies have shown that variations in enamel formation genes are associated with caries susceptibility. The aim of this study was to test in vitro whether variants in these genes are associated with dental enamel demineralization in a Streptococcus mutans biofilm model. DNA and enamel samples were obtained from 213 individuals. DNA was extracted from saliva, and 16 single nucleotide polymorphisms were analyzed. The physical and chemical properties of sound enamel samples and the mineral loss and the lesion depth of the demineralized enamel samples under cariogenic challenge were analyzed...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29161895/editorial-comment-on-end-2017-0436-or-r1
#7
Michael Grasso
A central component of percutaneous nephrostolithotomy is an endoscopic lithotrite that safely and efficiently clears stone of all compositions from the intrarenal collecting system. The current multicenter trial studied 3 lithotrite combinations employing both mechanical ballistic and ultrasonic energy to fragment and evacuate with suction stone debris. What is clear from this work is that, with regard to the timely clearance of the stone burden and peri-operative complications, there is minimal difference between the devices studied, nothing special and nothing new...
November 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29161496/ion-transport-across-biological-membranes-by-carborane-capped-gold-nanoparticles
#8
Marcin P Grzelczak, Stephen P Danks, Robert C Klip, Domagoj Belic, Adnana Zaulet, Casper Kunstmann-Olsen, Dan F Bradley, Tatsuya Tsukuda, Clara Viñas, Francesc Teixidor, Jonathan J Abramson, Mathias Brust
2-3 nm carborane-capped gold nanoparticles (Au/carborane NPs) can act as artificial ion transporters across biological membranes. The particles themselves are large hydrophobic anions that have the ability to disperse in aqueous media and to partition over both sides of a phospholipid bilayer membrane. Their presence therefore causes a membrane potential that is determined by the relative concentrations of particles on each side of the membrane according to the Nernst-Equation. The particles tend to adsorb to both sides of the membrane and can flip across if changes in membrane potential require their repartitioning...
November 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/29160809/evaluation-of-dietary-intakes-and-supplement-use-in-paralympic-athletes
#9
Robyn F Madden, Jane Shearer, Jill A Parnell
Dietary intakes and supplement use in Paralympic athletes remains largely unexplored, and specialized recommendations are lacking. The aim of this study was to evaluate nutrient intakes and supplement use in high-performance athletes with physical disabilities using three-day food records and a validated dietary supplement use questionnaire. A secondary aim examined gender differences in nutrient and supplement intakes. Male (n = 18) and female (n = 22) athletes were recruited from nine Paralympic sports through sporting organizations, coaches, and social media...
November 21, 2017: Nutrients
https://www.readbyqxmd.com/read/29159228/data-on-water-quality-index-for-the-groundwater-in-rural-area-neyshabur-county-razavi-province-iran
#10
Mahmood Yousefi, Hossein Najafi Saleh, Ali Akbar Mohammadi, Amir Hossein Mahvi, Mansour Ghadrpoori, Hamed Suleimani
Public health is at risk from physical and chemical contaminants in the drinking water which may have immediate health consequences. The data from the current study was evaluated for groundwater quality in the rural villages of Neyshabur County in Iran. For determination of the essential physicochemical parameters, water samples were collected from 30 randomly-selected water wells during 2013 and 2014. The samples were tested in situ to measure physical parameters of pH and electrical conductivity and chemical parameters of total dissolved solids, total hardness and levels of calcium, magnesium, carbonates, bicarbonates, sodium, potassium, chloride and sulfates...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29158734/a-study-of-the-importance-of-clonus-symptoms-in-patients-with-tramadol-poisoning
#11
Fares Najari, Anahita Alizadeh-Ghamsari, Maryam Vahabzadeh, Bita Dadpour, Seyed Reza Mousavi, Ideh Baradaran Kayal
Objectives: Clinical studies to reduce the side effects of tramadol, such as seizure, are necessary. Owing to the high prevalence of tramadol consumption and subsequent complications that result from seizures, the aim of the present study was to find a relationship between clonus and prediction of seizure outcome in patients with tramadol overdose. This can be used to determine the need for essential actions if a significant indicator of preventive medical measures is observed. Methods: In this case-control study, three groups of patients poisoned with tramadol and with marked ankle clonus were evaluated...
2017: Journal of Toxicology
https://www.readbyqxmd.com/read/29158115/trace-elements-cause-oxidative-damage-in-the-brain-of-rats-with-induced-hypotension
#12
David Calderón Guzmán, Maribel Ortiz Herrera, Norma Osnaya Brizuela, Gerardo Barragán Mejía, Hugo Juárez Olguín, Armando Valenzuela Peraza
Hypertension causes neuronal damage and apoptosis in the brain. Diazoxide is a drug used in the treatment of hypertension however, its effect on 5-hydroxyindole acetic acid (5-HIAA) and dopamine amines in adult animal models remains unclear. The purpose of this study was to determine the effect of oligoelements on 5-HIAA and dopamine in the brain of adult rats treated with diazoxide METHODS: Male Fisher rats (weight 250g) were treated as follows: Group I, NaCl 0.9% (control); group II, tracefusin® (1.5mL/rat); group III, diazoxide (20mg/rat) and group IV, tracefusin® (1...
November 3, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/29156525/esomeprazole-ameliorates-ccl4-induced-liver-fibrosis-in-rats-via-modulating-oxidative-stress-inflammatory-fibrogenic-and-apoptotic-markers
#13
Heba M Eltahir, Maiiada H Nazmy
BACKGROUND: Hepatic fibrosis is a major health problem that requires further medical attention. Proton pump inhibitors are proven to possess other therapeutic potentials apart of their acid anti-secretory actions. AIM OF THE WORK: To test possible anti-fibrotic effect of esomeprazole magnesium trihydrate in management of liver fibrosis compared to silymarin, the well-known hepatoprotective agent. MATERIALS & METHODS: 40 male albino rats were divided into 4 groups: normal control group; CCl4-treated group (1 mL/kg 40% CCl4, diluted in olive oil) I...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156417/the-effect-of-magnesium-hydroxide-containing-dentifrice-using-an-extrinsic-and-intrinsic-erosion-cycling-model
#14
Vanara Florêncio Passos, Lidiany Karla Azevedo Rodrigues, Sérgio Lima Santiago
OBJECTIVE: To evaluate, in vitro, the effect of Mg(OH)2 dentifrice, and the influence of the number of experimental days, on the extrinsic (citric acid -CA) and intrinsic (hydrochloric acid -HCl) enamel erosion models. DESIGN: Human enamel slabs were selected according to surface hardness and randomly assigned to 3 groups (n=9) as follows: non-fluoridated (negative control), NaF (1450ppm F- positive control) and Mg(OH)2 (2%) dentifrices. The slabs were daily submitted to a 2-h period of pellicle formation and, over a period of 5days, submitted to cycles (3×/day) of erosive challenge (CA 0...
November 14, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29156336/magnesium-lithospermate-b-loaded-pegylated-solid-lipid-nanoparticles-for-improved-oral-bioavailability
#15
Xuqi Kang, Hui Chen, Shujuan Li, Liyong Jie, Jingbo Hu, Xiaojuan Wang, Jing Qi, Xiaoying Ying, Yongzhong Du
Magnesium lithospermate B (MLB) is an active polyphenol acid with multiple pharmacological activities and poor oral bioavailability. The present research aimed to construct MLB loaded solid lipid nanoparticles (MLB-SLNs) for oral delivery to enhance its bioavailability. MLB-SLNs were prepared by solvent diffusion method and subsequently modified with polyethylene glycol monostearate (PEG-SA) superficially. The particle sizes of MLB-SLNs varied from 82.57 to 53.50nm with an improved drug loading capacity (up to 16...
November 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29156038/reply-to-does-intraoperative-magnesium-lessen-pain-after-knee-replacement-surgery
#16
H-J Shin, S-H Do
No abstract text is available yet for this article.
December 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29156037/does-intraoperative-magnesium-lessen-pain-after-knee-replacement-surgery
#17
V R Buswell, T Fregene
No abstract text is available yet for this article.
December 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29155229/particle-agglomeration-of-chitosan-magnesium-aluminum-silicate-nanocomposites-for-direct-compression-tablets
#18
Rapee Khlibsuwan, Thaned Pogjanyakul
Exfoliated nanocomposites of chitosan-magnesium aluminum silicate (CS-MAS) particles are characterized by good compressibility but poor flowability. Thus, the aims of this study were to investigate agglomerates of CS-MAS nanocomposites prepared using the agglomerating agents water, ethanol, or polyvinylpyrrolidone (PVP) for flowability enhancement and to evaluate the agglomerates obtained as direct compression fillers for tablets. The results showed that the addition of agglomerating agents did not affect crystallinity, but slightly influenced thermal behavior of the CS-MAS nanocomposites...
November 16, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29153650/performance-of-phosphogypsum-and-calcium-magnesium-phosphate-fertilizer-for-nitrogen-conservation-in-pig-manure-composting
#19
Yun Li, Wenhai Luo, Guoxue Li, Kun Wang, Xiaoyan Gong
This study investigated the performance of phosphogypsum and calcium magnesium phosphate fertilizer for nitrogen conservation during pig manure composting with cornstalk as the bulking agent. Results show that phosphogypsum increased nitrous oxide (N2O) emission, but significantly reduced ammonia (NH3) emission and thus enhanced the mineral and total nitrogen (TN) contents in compost. Although N2O emission could be reduced by adding calcium magnesium phosphate fertilizer, NH3 emission was considerably increased, resulting in an increase in TN loss during composting...
August 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29152984/preparation-of-polyfunctional-naphthyridines-by-cobalt-catalyzed-cross-couplings-of-halogenated-naphthyridines-with-magnesium-and-zinc-organometallics
#20
Robert Greiner, Dorothée S Ziegler, Denise Cibu, Andreas C Jakowetz, Florian Auras, Thomas Bein, Paul Knochel
CoCl2 (5%) catalyzes cross-couplings of various halogenated naphthyridines with alkyl- and arylmagnesium halides. Also, arylzinc halides undergo smooth cross-couplings with various naphthyridines in the presence of CoCl2·2LiCl (5%) and sodium formate (50%), leading to polyfunctional arylated naphthyridines. Two of these arylated naphthyridines are highly fluorescent, with quantum efficiencies reaching 95% and long excited-state lifetimes of up to 12 ns.
November 20, 2017: Organic Letters
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