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https://www.readbyqxmd.com/read/28727036/supplementation-of-glycerol-or-fructose-via-drinking-water-to-grazing-lambs-on-tissue-glycogen-level-and-lipogenesis
#1
G Volpi-Lagreca, S K Duckett
Lambs ( = 18; 40.1 ± 7.4 kg BW) were used to assess supplementation of glycerol or fructose via drinking water on growth, tissue glycogen levels, postmortem glycolysis, and lipogenesis. Lambs were blocked by BW and allocated to alfalfa paddocks (2 lambs/paddock and 3 paddocks/treatment). Each paddock within a block was assigned randomly to drinking water treatments for 30 d: 1) control (CON), 2) 120 g fructose/L of drinking water (FRU), or 3) 120 g glycerol/L of drinking water (GLY). Lambs grazed alfalfa with free access to water treatments for 28 d and then were fasted in indoor pens for a final 2 d with access to only water treatments...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28725644/pesticides-curbing-soil-fertility-effect-of-complexation-of-free-metal-ions
#2
Sukhmanpreet Kaur, Vijay Kumar, Mohit Chawla, Luigi Cavallo, Albert Poater, Niraj Upadhyay
Researchers have suggested that the reason behind infertility is pernicious effect of broad spectrum pesticides on non target, beneficial microorganism of soil. Here, studying the chelating effect of selective organophosphate and carbamate pesticides with essential metal ions, at all possible combinations of three different pH (4 ± 0.05, 7 ± 0.05 and 9 ± 0.05) and three different temperatures (15 ± 0.5°C, 30 ± 0.5°C and 45 ± 0.5°C), shows very fast rate of reaction which further increases with increase of pH and temperature...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28724042/hyperglycemia-in-critical-patients-determinants-of-insulin-dose-choice
#3
Aline Klitzke Paliosa, Cassiano Teixeira, Regis Goulart Rosa, Carine Raquel Blatt
Objective: To identify factors that can determine the choice of intermittent subcutaneous regular insulin dose in critically ill patients with hyperglycemia. Method: Cross-sectional study in a general adult ICU with 26 beds, data collected between September and October 2014. The variables analyzed were: sex, age, previous diagnosis of diabetes mellitus, use of corticosteroids, use of lactulose, sepsis, fasting, enteral nutrition, use of dextrose 5% in water, NPH insulin prescription and blood glucose level...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28722398/fractionation-and-concentration-of-high-salinity-textile-wastewater-using-an-ultra-permeable-sulfonated-thin-film-composite
#4
Meng Li, Yujian Yao, Wen Zhang, Junfeng Zheng, Xuan Zhang, Lianjun Wang
A sulfonated thin-film composite (TFC) nanofiltration membrane was fabricated using 2,2'-benzidinedisulfonic acid (BDSA) and trimesoyl chloride (TMC) on a polyether sulfone substrate by conventional interfacial polymerization. Due to a nascent barrier layer with a loose architecture, the obtained TFC-BDSA-0.2 membrane showed an ultra-high pure water permeability of 48.1 ± 2.1 L-1 m-2 h-1 bar-1, and a considerably low NaCl retention ability of <1.8% over a concentration range of 10-100 g L-1. The membrane, which possesses a negatively charged surface, displayed an excellent rejection of over 99% towards Congo red (CR), and allowed the fast fractionation of high-salinity textile wastewater...
July 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28716542/on-the-lateral-dose-profile-of-4-he-beams-in-water
#5
A Embriaco, V E Bellinzona, A Fontana, A Rotondi
PURPOSE: We investigate the possibility to improve the accuracy of the lateral dose profile for (4)He beams with a novel approach, by extending an already validated model for proton beams to heavier ions. METHODS: The full Molière theory for the Coulomb multiple scattering is applied to the case of (4)He beams, with a complete separation of the electromagnetic and of the nuclear contributions in the calculation of the total dose. The latter is described with only three free parameters...
July 14, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28712549/determination-of-trace-amounts-of-g-type-nerve-agents-in-aqueous-samples-utilizing-in-vial-instantaneous-derivatization-and-liquid-chromatography-tandem-mass-spectrometry
#6
Avi Weissberg, Moran Madmon, Maor Elgarisi, Shai Dagan
A methodology for sensitive determination of sarin (GB), soman (GD) and cyclosarin (GF) chemical warfare agents in aqueous media was developed. The method incorporates direct derivatization with 2-[(dimethylamino)methyl]phenol (2-DMAMP), a commercially available, water-soluble reagent, followed by LC-ESI-MS/MS analysis in the positive ion mode. Five derivatization agents were characterized for their MS/MS fragmentation pattern, and their reaction time, temperature and derivatization-reagent amount were optimized...
July 4, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28702205/association-of-arsenobetaine-with-beta-cell-function-assessed-by-homeostasis-model-assessment-homa-in-nondiabetic-koreans-data-from-the-fourth-korea-national-health-and-nutrition-examination-survey-knhanes-2008-2009
#7
Kiook Baek, Namhoon Lee, Insung Chung
BACKGROUND: Arsenic is known as an endocrine disruptor that people are exposed to through various sources such as drinking water and indigestion of marine products. Although some epidemiological and animal studies have reported a correlation between arsenic exposure and diabetes development, there are limited studies regarding the toxic effects of organic arsenic including arsenobetaine on the human body. Here, we analyzed the association between urine arsenobetaine and the homeostasis model assessment of β-cell function (HOMA-β), which is an index for predicting diabetes development and reflecting the function of pancreatic β-cells...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28699228/facilitating-active-species-generation-by-amorphous-nife-bi-layer-formation-on-nife-ldh-nanoarray-for-efficient-electrocatalytic-oxygen-evolution-at-alkaline-ph
#8
Xuping Sun
Searching for a simple and fast strategy to effectively enhance the oxygen evolution reaction (OER) performance of non-noble-metal electrocatalysts in alkaline media remains a significant challenge. Herein, we demonstrate that the OER activity of NiFe-LDH nanoarray on carbon cloth (NiFe-LDH/CC) in alkaline media is greatly boosted by amorphous NiFe-Borate (NiFe-Bi) layer formation on NiFe-layered double hydroxide (NiFe-LDH) surface. Such NiFe-LDH@NiFe-Bi/CC catalyst electrode only needs overpotential of 294 mV to drive 50 mA cm-2 in 1...
July 11, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28694819/assessment-of-vegetation-indices-derived-by-uav-imagery-for-durum-wheat-phenotyping-under-a-water-limited-and-heat-stressed-mediterranean-environment
#9
Angelos C Kyratzis, Dimitrios P Skarlatos, George C Menexes, Vasileios F Vamvakousis, Andreas Katsiotis
There is growing interest for using Spectral Vegetation Indices (SVI) derived by Unmanned Aerial Vehicle (UAV) imagery as a fast and cost-efficient tool for plant phenotyping. The development of such tools is of paramount importance to continue progress through plant breeding, especially in the Mediterranean basin, where climate change is expected to further increase yield uncertainty. In the present study, Normalized Difference Vegetation Index (NDVI), Simple Ratio (SR) and Green Normalized Difference Vegetation Index (GNDVI) derived from UAV imagery were calculated for two consecutive years in a set of twenty durum wheat varieties grown under a water limited and heat stressed environment...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28686446/theoretical-insights-on-solvent-control-of-intramolecular-and-intermolecular-proton-transfer-of-2-2-hydroxyphenyl-benzimidazole
#10
Chanatkran Prommin, Narissa Kanlayakan, Warinthon Chansen, Rusrina Salaeh, Khanittha Kerdpol, Rathawat Daengngern, Nawee Kungwan
Excited-state proton transfer (ESPT) processes of 2-(2'-hydroxyphenyl)benzimidazole (HBI) and its complexation with protic solvents (H2O, CH3OH, and NH3) have been investigated both static calculations and dynamics simulations using density function theory (DFT) at B3LYP/TZVP theoretical level for ground state (S0) and time dependent (TD)-DFT at TD-B3LYP/TZVP for excited-state (S1). For static calculations, absorption and emission spectra, infrared (IR) vibrational spectra, frontier molecular orbitals (MOs) of O ̶ H mode, and potential energy curves (PECs) of proton transfer coordinate were analyzed...
July 7, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28686024/a-pyridin-spiropyran-derivative-as-persistent-reversible-photoacid-in-water
#11
Thomas Halbritter, Christoph Kaiser, Josef Wachtveitl, Alexander Heckel
A highly versatile water-soluble pyridine-spiropyran photoswitch is reported which functions as photoacid in a wide pH range. Under neutral conditions, the open-ring merocyanine (MC-) exists to 48% and closes quantitatively by irradiation with visible light while the reverse reaction occurs rapidly in the dark or by irradiation at 340 nm. The different pKa of the pyridine nitrogen in the closed spiropyran (4.8) and open merocyanine form (6.8) leads to a reversible proton release in a pH range of 3-7. Only negligible hydrolytic decomposition was observed in the pH range from 1-12...
July 7, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28679284/comparison-of-glucose-values-of-blood-samples-taken-in-three-different-ways
#12
Tulay Sagkal Midilli, Eda Ergın, Ebru Baysal, Zeki Arı
The purpose of the study was to determine differences and correlations between the blood glucose values of venous blood and the first and second drops of capillary blood samples taken in three different ways. Blood samples were (a) venous blood, (b) the first and second drops of capillary blood from the middle finger of the right hand (only washed with soap and water), and (c) the first and second drops of capillary blood from the middle finger of the left hand (washed with soap and water and cleaned with alcohol)...
June 1, 2017: Clinical Nursing Research
https://www.readbyqxmd.com/read/28674481/pre-microporation-improves-outcome-of-pancreatic-islet-labelling-for-optical-and-19-f-mr-imaging
#13
Vít Herynek, Andrea Gálisová, Mangala Srinivas, Eric A W van Dinther, Lucie Kosinová, Jiri Ruzicka, Markéta Jirátová, Jan Kriz, Daniel Jirák
BACKGROUND: In vitro labelling of cells and small cell structures is a necessary step before in vivo monitoring of grafts. We modified and optimised a procedure for pancreatic islet labelling using bimodal positively charged poly(lactic-co-glycolic acid) nanoparticles with encapsulated perfluoro crown ethers and indocyanine green dye via microporation and compared the method with passive endocytosis. RESULTS: Pancreatic islets were microporated using two pulses at various voltages...
2017: Biological Procedures Online
https://www.readbyqxmd.com/read/28670699/the-desert-plant-phoenix-dactylifera-closes-stomata-via-nitrate-regulated-slac1-anion-channel
#14
Heike M Müller, Nadine Schäfer, Hubert Bauer, Dietmar Geiger, Silke Lautner, Jörg Fromm, Markus Riederer, Amauri Bueno, Thomas Nussbaumer, Klaus Mayer, Saleh A Alquraishi, Ahmed H Alfarhan, Erwin Neher, Khaled A S Al-Rasheid, Peter Ache, Rainer Hedrich
Date palm Phoenix dactylifera is a desert crop well adapted to survive and produce fruits under extreme drought and heat. How are palms under such harsh environmental conditions able to limit transpirational water loss? Here, we analysed the cuticular waxes, stomata structure and function, and molecular biology of guard cells from P. dactylifera. To understand the stomatal response to the water stress phytohormone of the desert plant, we cloned the major elements necessary for guard cell fast abscisic acid (ABA) signalling and reconstituted this ABA signalosome in Xenopus oocytes...
July 3, 2017: New Phytologist
https://www.readbyqxmd.com/read/28659624/alcohol-recognition-by-flexible-transparent-and-highly-sensitive-graphene-based-thin-film-sensors
#15
Xuezhu Xu, Jian Zhou, Yangyang Xin, Gilles Lubineau, Qian Ma, Long Jiang
Chemical sensors detect a variety of chemicals across numerous fields, such as automobile, aerospace, safety, indoor air quality, environmental control, food, industrial production and medicine. We successfully assemble an alcohol-sensing device comprising a thin-film sensor made of graphene nanosheets (GNs) and bacterial cellulose nanofibers (BCNs). We show that the GN/BCN sensor has a high selectivity to ethanol by distinguishing liquid-phase or vapor-phase ethanol (C2H6O) from water (H2O) intelligently with accurate transformation into electrical signals in devices...
June 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28656120/the-circadian-rhythm-of-copeptin-the-c-terminal-portion-of-arginine-vasopressin
#16
Svetlana Beglinger, Jürgen Drewe, Mirjam Christ-Crain
BACKGROUND: Several studies have investigated copeptin as a prognostic marker of different acute diseases and as a diagnostic marker in disorders of water and salt homeostasis. However, no data of the normal circadian rhythm of copeptin in healthy subjects are available. AIM: To investigate the circadian rhythm of copeptin in healthy subjects under standardized conditions. METHODS: 19 healthy volunteers aged 18 to 53 years, male and female, were studied in a prospective observational study...
2017: Journal of Biomarkers
https://www.readbyqxmd.com/read/28652537/current-knowledge-of-ghrelin-in-amphibians
#17
Hiroyuki Kaiya, Kenji Kangawa, Mikiya Miyazato
We are exploring physiological importance of the ghrelin system in vertebrates. This review summarizes current knowledge of the ghrelin system in amphibians. Our study on ghrelin precursor in various amphibians revealed that the third amino acid with acyl modification has changed to threonine (Thr-3) instead of serine (Ser-3) only in the genus, Rana. Functional analyses of the ghrelin receptor in three species of amphibians, Japanese fire belly newt, American bullfrog and Japanese tree frog revealed that ghrelin and GHS-R1a agonists increase intracellular Ca(2+) concentration in HEK293 cells expressing each receptor, and that ligand selectivity of ghrelin with Ser-3 and Thr-3 that expected to see in the bullfrog receptor was not found in the two frog receptors, but in the newt receptor...
2017: Endocrine Journal
https://www.readbyqxmd.com/read/28648070/magnetic-resonance-imaging-quantification-of-fasted-state-colonic-liquid-pockets-in-healthy-humans
#18
Kathryn Murray, Caroline L Hoad, Deanna M Mudie, Jeff Wright, Khaled Heissam, Nichola Abrehart, Susan E Pritchard, Salem Al Atwah, Penny A Gowland, Martin C Garnett, Gregory E Amidon, Robin C Spiller, Gordon L Amidon, Luca Marciani
The rate and extent of drug dissolution and absorption from solid oral dosage forms is highly dependent on the volume of liquid in the gastrointestinal tract (GIT). However, little is known about the time course of GIT liquid volumes after drinking a glass of water (8 oz), particularly in the colon, which is a targeted site for both locally and systemically acting drug products. Previous magnetic resonance imaging (MRI) studies offered novel insights on GIT liquid distribution in fasted humans in the stomach and small intestine, and showed that freely mobile liquid in the intestine collects in fairly distinct regions or "pockets"...
July 6, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28620853/effects-of-ozonation-powdered-activated-carbon-adsorption-and-coagulation-on-the-removal-of-disinfection-by-product-precursors-in-reservoir-water
#19
Feng Wang, Baoyu Gao, Qinyan Yue, Fan Bu, Xue Shen
Effects of ozonation and powdered activated carbon on removal of dissolved organic matter (DOM) and disinfection by-product (DBP) in reservoir water were intensively investigated in this study. Both the formation of carbonaceous DBP (C-DBP) and nitrogenous DBP (N-DBP) as well as their speciation were analyzed. Results exhibited that the addition of powdered activated carbon (PAC) greatly improved the removal of aromatic protein. Trihalomethanes (THMs) and haloacetonitriles (HANs) were the dominant species in C-DBP and N-DBP...
June 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28608684/antioxidant-vitamin-e-cyclodextrin-inclusion-complex-electrospun-nanofibers-enhanced-water-solubility-prolonged-shelf-life-and-photostability-of-vitamin-e
#20
Asli Celebioglu, Tamer Uyar
Here, we demonstrated the electrospinning of polymer-free nanofibrous webs from inclusion complex (IC) between hydroxypropyl-β-cyclodextrin (HPβCD) and Vitamin E (Vitamin E/HPβCD-IC NF). The inclusion complexation between HPβCD and Vitamin E was prepared by using two different molar ratios (Vitamin E/HPβCD; 1:2 and 1:1), which correspond to theoretical value of ∼13% (w/w) and 26% (w/w) loading of Vitamin E in the nanofiber (NF) matrix. After electrospinning and storage, a very high loading of Vitamin E (up to ∼11% w/w, with respect to fiber matrix) was preserved in Vitamin E/HPβCD-IC NF...
July 5, 2017: Journal of Agricultural and Food Chemistry
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