keyword
MENU ▼
Read by QxMD icon Read
search

Water only fasting

keyword
https://www.readbyqxmd.com/read/28428822/in-muro-deacetylation-of-xylan-affects-lignin-properties-and-improves-saccharification-of-aspen-wood
#1
Prashant Mohan-Anupama Pawar, Marta Derba-Maceluch, Sun-Li Chong, Madhavi Latha Gandla, Shamrat Shafiul Bashar, Tobias Sparrman, Patrik Ahvenainen, Mattias Hedenström, Merve Özparpucu, Markus Rüggeberg, Ritva Serimaa, Martin Lawoko, Maija Tenkanen, Leif J Jönsson, Ewa J Mellerowicz
BACKGROUND: Lignocellulose from fast growing hardwood species is a preferred source of polysaccharides for advanced biofuels and "green" chemicals. However, the extensive acetylation of hardwood xylan hinders lignocellulose saccharification by obstructing enzymatic xylan hydrolysis and causing inhibitory acetic acid concentrations during microbial sugar fermentation. To optimize lignocellulose for cost-effective saccharification and biofuel production, an acetyl xylan esterase AnAXE1 from Aspergillus niger was introduced into aspen and targeted to cell walls...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28425700/reaction-of-the-tricyanoborate-dianion-b-cn-3-2-with-hgcl2
#2
Eduard Bernhardt, Vera Bernhardt-Pitchougina, Carsten Jenne
The very reactive [B(CN)3](2-) dianion has a strongly nucleophilic boron atom and can be used for the synthesis of tricyanoborates, which otherwise are difficult to access. Herein the reaction of this anion with HgCl2 is reported. The main product is the anionic mercury complex [Hg(B(CN)3)2](2-). Heteronuclear NMR spectroscopic experiments shows that the reaction proceeds via the intermediate [ClHgB(CN)3](2-). Even though [Hg(B(CN)3)2](2-) is the main product, it is difficult to obtain it in pure form, because it slowly decomposes in the presence of water and air to [(NC)HgB(CN)3](-)...
April 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28422569/preparation-of-a-novel-antibacterial-chitosan-poly-ethylene-glycol-cryogel-silver-nanoparticles-composites
#3
Xueqing Zou, Pengpeng Deng, Changjiang Zhou, Yulin Hou, Rongsheng Chen, Liang Feng, Liqiong Liao
Cryogel was synthesized through cryogelation of methacrylated carboxymethyl chitosan (mCMC) and poly(ethylene glycol) diacrylate (PEGDA) precursors by photopolymerization. Due to its excellent properties, such as fast swelling behavior, inter-connective porous structure, high water absorbing capacity, especially the presence of abundant carboxylmethyl groups on its backbone, the cryogel not only favored the absorption of silver ions but also was proved to be a good matrix for the incorporation of silver nanoparticles (AgNPs) by in situ chemical reduction...
April 19, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28421317/effect-of-oral-carbohydrate-with-amino-acid-solution-on-serum-oxidative-anti-oxidative-status-in-healthy-volunteers
#4
Yasuo M Tsutsumi, Takuro Oyama, Nami Kakuta, Yousuke T Horikawa, Katsuyoshi Kume, Yoko Sakai, Rie Tsutsumi, Katsuya Tanaka
The aim of this work was to investigate the effect of oral carbohydrate with amino acid [oral nutritional supplement (ONS)] solution on oxidative stress in healthy persons. Fourteen healthy volunteers were segregated into control and ONS groups. Volunteers in the ONS group ingested 250 ml of Arginaid Water (Nestle Japan, Tokyo, Japan) in the evening before the experiment and at 7:00 am on the day of the experiment. Volunteers in the control group fasted after dinner and drank only water until 7:00 am on the day of the experiment...
April 18, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28406081/ecotoxicological-analysis-of-acrylamide-using-a-microalga-as-an-indicator-organism
#5
Bárbara Werle Nunes Keila Fernanda Hedlund Maria Angelica Oliveira And Elvis Carissimi
Aquatic ecosystems are very prone to contamination. The fast and accurate assessment of the toxicity of the water is animportant tool for environmental safety. The aim of this study was to assess the possible toxic effects of acrylamide on physiological parameters of the ChlorophyceaeandDesmodesmus quadricauda. Cells in exponential growth phase were exposed for 72 hours to different concentrations of acrylamide. Light microscopy analysis documented cell density, number of cells per coenobia, cell dimensions, and biovolume; chlorophyll "a" concentration was also determined...
April 12, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28400101/overcoming-the-exacerbating-effects-of-ranitidine-on-nsaid-induced-small-intestinal-toxicity-with-quercetin-providing-a-complete-gi-solution
#6
Devendra Pratap Singh, Swapnil P Borse, Manish Nivsarkar
There is a need to find/discover novel leads to treat complex and/or multi-factorial-pathogenic disease(s) like Nonsteroidal anti-inflammatory drugs (NSAID)-induced gastroenteropathy or gastrointestinal (GI) toxicity as it has emerged as an important medical and socioeconomic problem. There is no approved therapeutic strategy to prevent NSAID-induced small intestinal toxicity and highly effective gastro-protective drugs such as ranitidine hydrochloride (RAN) exacerbate it. In this purview, the multi target drug discovery approach (MTDD), combination approach and hit to lead strategies based on the foundation of ethnopharmacology and/or reverse pharmacology holds strong potential...
April 8, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28395829/thermal-analysis-methods-for-the-rapid-identification-and-authentication-of-swiftlet-aerodramus-fuciphagus-edible-bird-s-nest-a-mucin-glycoprotein
#7
Eric K S Shim, Gleen F Chandra, Soo-Y Lee
Edible bird's nest of the swiftlet Aerodramus fuciphagus, is an unusual dried mucin glycoprotein, which has been used, particularly by Asians, as a premium food and wide spectrum health supplement for centuries. For the first time, thermogravimetry, differential thermogravimetry, and differential scanning calorimetry methods are used for the rapid identification and authentication of edible bird's nest. It is shown that edible bird's nest has a total moisture content of 12.6% which is removed below 200°C, followed by two major decomposition steps on heating under nitrogen gas...
May 2017: Food Research International
https://www.readbyqxmd.com/read/28355155/dispersed-dynamics-of-solvation-in-g-quadruplex-dna-comparison-of-dynamic-stokes-shifts-of-probes-in-parallel-and-antiparallel-quadruplex-structures
#8
Moirangthem Kiran Singh, Him Shweta, Sobhan Sen
G-quadruplex DNA (GqDNA) structures play an important role in many specific cellular functions and are promising anti-tumor targets for small molecules (ligands). Here, we measured the dynamic Stokes shift of a ligand (Hoechst) bound to parallel c-Myc (mPu22) GqDNA over five decades of time from 100 fs to 10 ns, and compared it with the previously reported dynamics of DAPI bound to antiparallel human telomeric (hTelo22) GqDNA (Pal et al 2015 J. Phys. Chem. Lett. 6 1754). Stokes shift data from fluorescence up-conversion and time-correlated single photon counting experiments was combined to cover the broad dynamic range...
September 6, 2016: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28351642/inter-laboratory-validation-of-a-thin-film-microextraction-technique-for-determination-of-pesticides-in-surface-water-samples
#9
Hamed Piri-Moghadam, Emanuela Gionfriddo, Angel Rodriguez-Lafuente, Jonathan J Grandy, Heather L Lord, Terry Obal, Janusz Pawliszyn
The primary goal of the present study is the inter-laboratory evaluation of a thin film microextraction (TFME) technique to be used as an alternative approach to liquid-liquid extraction (LLE). Polydimethylsiloxane/divinylbenzene (PDMS/DVB) and PDMS/DVB-carbon mesh supported membranes were used for the extraction of 23 targeted pesticides, while a thermal desorption unit (TDU) was employed to transfer these analytes to a GC/MS instrument for separation and detection. After optimization of the most critical parameters, both membranes were capable of achieving limits of detection (LOD) in the low ng L(-1) range while demonstrating excellent robustness, withstanding up to 100 extractions/desorption cycles...
April 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28350747/short-article-small-intestinal-mucosal-injury-in-patients-taking-chemotherapeutic-agents-for-solid-cancers
#10
Maria P Dore, Giovanni M Pes, Alberto Murino, Bianca Quarta Colosso, Marco Pennazio
OBJECTIVE: Chemotherapy for cancer is a systemic treatment often associated with side effects than can be debilitating and, in some cases, life-threatening. Few data are available on intestinal enterotoxicity. Wireless video capsule endoscopy (VCE) is a noninvasive method of imaging the small intestine. This study presents the results of VCE in patients with solid tumors undergoing antineoplastic regimens with agents, notably for toxicity for the gastrointestinal mucosa (i.e. carboplatin, cyclophosphamide, 5-fluorouracil, methotrexate, and cisplatin)...
May 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28347724/metabolic-effects-of-intermittent-access-to-caloric-or-non-caloric-sweetened-solutions-in-mice-fed-a-high-caloric-diet
#11
Marion Soto, Catherine Chaumontet, Patrick C Even, Dalila Azzout-Marniche, Daniel Tomé, Gilles Fromentin
Human consumption of obesogenic diets and soft drinks, sweetened with different molecules, is increasing worldwide, and increases the risk of metabolic diseases. We hypothesized that the chronic consumption of caloric (sucrose, high-fructose corn syrup (HFCS), maltodextrin) and non-caloric (sucralose) solutions under 2-hour intermittent access, alongside the consumption of a high-fat high-sucrose diet, would result in differential obesity-associated metabolic abnormalities in mice. Male C57BL/6 mice had ad libitum access to an HFHS diet and to water (water control group)...
March 24, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28345877/direct-analysis-of-metal-ions-in-solutions-with-high-salt-concentrations-by-total-reflection-x-ray-fluorescence
#12
Mercedes Regadío, Sofía Riaño, Koen Binnemans, Tom Vander Hoogerstraete
Total reflection X-ray fluorescence (TXRF) is becoming more and more popular for elemental analysis in academia and industry. However, simplification of the procedures for analyzing samples with complex compositions and residual matrix effects is still needed. In this work, the effect of an inorganic (CaCl2) and an organic (tetraalkylphosphonium chloride) matrix on metals quantification by TXRF was investigated for liquid samples. The samples were spiked with up to 20 metals at concentrations ranging from 3 to 50 mg L(-1) per element, including elements with spectral peaks near the peaks of the matrix elements or near the Raleigh and Compton scattering peaks of the X-ray source (molybdenum anode)...
April 6, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28323423/bioinspired-layer-by-layer-microcapsules-based-on-cellulose-nanofibers-with-switchable-permeability
#13
Thomas Paulraj, Anastasia V Riazanova, Kun Yao, Richard L Andersson, Anette Müllertz, Anna J Svagan
Green, all-polysaccharide based microcapsules with mechanically robust capsule walls and fast, stimuli-triggered, and switchable permeability behavior show great promise in applications based on selective and timed permeability. Taking a cue from nature, the build-up and composition of plant primary cell walls inspired the capsule wall assembly, because the primary cell walls in plants exhibit high mechanical properties despite being in a highly hydrated state, primarily owing to cellulose microfibrils. The microcapsules (16 ± 4 μm in diameter) were fabricated using the layer-by-layer technique on sacrificial CaCO3 templates, using plant polysaccharides (pectin, cellulose nanofibers, and xyloglucan) only...
March 28, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28322210/mycolactone-producing-mycobacterium-marinum-infection-in-captive-hong-kong-warty-newts-and-pathological-evidence-of-impaired-host-immune-function
#14
Wen-Ta Li, Hui-Wen Chang, Victor Fei Pang, Fun-In Wang, Chen-Hsuan Liu, Ting-Yu Chen, Jun-Cheng Guo, Takayuki Wada, Chian-Ren Jeng
A mass mortality event of captive Hong Kong warty newts Paramesotriton hongkongensis with non-granulomatous necrotic lesions occurred in Taipei Zoo, Taiwan, in 2014. Clinically, the sick newts were lethargic and often covered with water mold Saprolegnia sp. on the skin of the body trunk or extremities. Predominant pathological findings were multifocal non-granulomatous necrotic lesions in the liver, spleen, and kidneys and severe skin infection with Saprolegnia sp., with deep invasion and involvement of underlying muscles...
March 21, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28317258/centrifugeless-ultrasound-assisted-emulsification-microextraction-based-on-salting-out-phenomenon-followed-by-high-performance-liquid-chromatography-for-the-simple-determination-of-phthalate-esters-in-aqueous-samples
#15
Ehsan Mirparizi, Maryam Rajabi, Mohammad Bazregar, Alireza Asghari
A fast, sensitive, and centrifugeless ultrasound-assisted emulsification microextraction followed by high performance liquid chromatography method is developed for the determination of some phthalate esters in aqueous samples. In this method, a simple approach is followed for elimination of the centrifugation step in dispersive liquid-liquid microextraction using an organic solvent whose melting point is near the ambient temperature, consumption of the extracting solvent is efficiently reduced, and the overall extraction time was found to be only 7 min...
March 20, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28315236/detection-of-ketones-by-a-novel-technology-dipolar-proton-transfer-reaction-mass-spectrometry-dp-ptr-ms
#16
Yue Pan, Qiangling Zhang, Wenzhao Zhou, Xue Zou, Hongmei Wang, Chaoqun Huang, Chengyin Shen, Yannan Chu
Proton transfer reaction mass spectrometry (PTR-MS) has played an important role in the field of real-time monitoring of trace volatile organic compounds (VOCs) due to its advantages such as low limit of detection (LOD) and fast time response. Recently, a new technology of proton extraction reaction mass spectrometry (PER-MS) with negative ions OH(-) as the reagent ions has also been presented, which can be applied to the detection of VOCs and even inorganic compounds. In this work, we combined the functions of PTR-MS and PER-MS in one instrument, thereby developing a novel technology called dipolar proton transfer reaction mass spectrometry (DP-PTR-MS)...
March 17, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28304077/alternative-electron-transport-mediated-by-flavodiiron-proteins-is-operational-in-organisms-from-cyanobacteria-up-to-gymnosperms
#17
Petr Ilík, Andrej Pavlovič, Roman Kouřil, Alessandro Alboresi, Tomas Morosinotto, Yagut Allahverdiyeva, Eva-Mari Aro, Hiroshi Yamamoto, Toshiharu Shikanai
Photo-reduction of O2 to water mediated by flavodiiron proteins (FDPs) represents a safety valve for the photosynthetic electron transport chain in fluctuating light. So far, the FDP-mediated O2 photo-reduction has been evidenced only in cyanobacteria and the moss Physcomitrella; however, a recent phylogenetic analysis of transcriptomes of photosynthetic organisms has also revealed the presence of FDP genes in several nonflowering plant groups. What remains to be clarified is whether the FDP-dependent O2 photo-reduction is actually operational in these organisms...
March 17, 2017: New Phytologist
https://www.readbyqxmd.com/read/28303707/assessment-of-nutritional-habits-and-preferences-among-secondary-school-students
#18
Paulina Duma-Kocan, Barbara Barud, Elżbieta Głodek, Marian Gil
Background: Appropriate nutrition is one of the most important factors affecting the proper development of man, nutritional status and maintaining good health. Adolescence is a period of development of skills of self-determination and self-realization, also in the case of nutrition. Children and school-age youth are the group most vulnerable to the effects of incorrect nutrition. The way of nutrition during this period determines psychophysical and emotional development, effectiveness in learning process and has influence on health in adulthood...
2017: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/28282160/fast-dynamics-of-water-droplets-freezing-from-the-outside-in
#19
Sander Wildeman, Sebastian Sterl, Chao Sun, Detlef Lohse
A drop of water that freezes from the outside in presents an intriguing problem: the expansion of water upon freezing is incompatible with the self-confinement by a rigid ice shell. Using high-speed imaging we show that this conundrum is resolved through an intermittent fracturing of the brittle ice shell and cavitation in the enclosed liquid, culminating in an explosion of the partially frozen droplet. We propose a basic model to elucidate the interplay between a steady buildup of stresses and their fast release...
February 24, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28277954/physiological-responses-to-fasting-and-estivation-for-the-three-toed-amphiuma-amphiuma-tridactylum
#20
Matthew E Smith, Stephen M Secor
Species of Amphiuma enter a state of subterranean estivation with the drying of their aquatic habitat. Characteristic of amphibian fasting and estivation is an initial depression of metabolism and tissue mass and function with fasting, followed by a more pronounced adaptive decrease in metabolism and tissue function with estivation. We hypothesized that Amphiuma likewise experiences a two-stage set of responses to estivation. Therefore, we examined the physiological responses of the three-toed amphiuma (Amphiuma tridactylum) to fasting and estivation treatments...
March 2017: Physiological and Biochemical Zoology: PBZ
keyword
keyword
92703
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"