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https://www.readbyqxmd.com/read/28820711/molecular-epidemiology-of-cholera-outbreaks-during-the-rainy-season-in-mandalay-myanmar
#1
Amonrattana Roobthaisong, Kazuhisa Okada, Nilar Htun, Wah Wah Aung, Warawan Wongboot, Watcharaporn Kamjumphol, Aye Aye Han, Yi Yi, Shigeyuki Hamada
Cholera, caused by Vibrio cholerae, remains a global threat to public health. In Myanmar, the availability of published information on the occurrence of the disease is scarce. We report here that cholera incidence in Mandalay generally exhibited a single annual peak, with an annual average of 312 patients with severe dehydration over the past 5 years (since 2011) and was closely associated with the rainy season. We analyzed cholera outbreaks, characterized 67 isolates of V. cholerae serogroup O1 in 2015 from patients from Mandalay, and compared them with 22 V...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820200/statistical-thermodynamics-unveils-the-dissolution-mechanism-of-cellobiose
#2
Thomas W J Nicol, Noriyuki Isobe, James H Clark, Seishi Shimizu
In the study of the cellulose dissolution mechanism opinion is still divided. Here, the solution interaction components of the most prominent hypotheses for the driving force of cellulose dissolution were evaluated quantitatively. Combining a rigorous statistical thermodynamic theory and cellobiose solubility data in the presence of chloride salts, whose cations progress in the Hofmeister series (KCl, NaCl, LiCl and ZnCl2), we have shown that cellobiose solubilization is driven by the preferential accumulation of salts around the solutes which is stronger than cellobiose hydration...
August 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28819976/interrupting-base-mediated-benzofuran-ring-transformation-with-michael-acceptors
#3
Kolluru Srinivas, Rashmi Sharma, Chepuri V Ramana
Simple two-stage approach for the synthesis of 3-(2-arylbenzofuran-3-yl)propanoates and propanamides has been developed employing simple acrylates and acrylamides and readily available 3-aroylbenzofurans. The key step of this process involves a base-mediated ring opening of the 3-aroylbenzofurans and subsequent Michael addition of the resulting 1,3-dicarbonyl intermediate with acrylate/acrylamide followed by the deformylation in one-pot. The resulting products undergo an acid-mediated dehydrative cyclization to arrive at these targets...
August 18, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28819783/factors-associated-with-hospital-readmission-following-diverting-ileostomy-creation
#4
W Li, L Stocchi, D Cherla, G Liu, A Agostinelli, C P Delaney, S R Steele, E Gorgun
BACKGROUND: The creation of a diverting loop ileostomy is associated with the risk of readmission due to stoma-related complications. We hypothesized that the assessment of our institution-specific readmissions following ileostomy creation would help identifying at-risk groups which should be the focus of future preventative strategies. METHODS: Patients who underwent loop ileostomy formation from 2009 to 2013 were reviewed. We evaluated readmissions within 30 days after discharge following loop ileostomy construction...
August 17, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28817822/predictors-of-postoperative-non-chylous-massive-discharge-after-pancreaticoduodenectomy-for-pancreatic-ductal-adenocarcinoma
#5
Kyoji Ito, Yoshikuni Kawaguchi, Yoshihiro Sakamoto, Junichi Arita, Kiyoshi Hasegawa, Norihiro Kokudo
BACKGROUND: Pancreaticoduodenectomy (PD) is performed for pancreatic ductal adenocarcinoma (PDA) located at the pancreas head/body. Non-chylous massive discharge after PD is frequently encountered and can cause a vicious cycle of complications associated with severe dehydration and protein loss. METHODS: From August 2008 to June 2015, 102 patients who underwent PD for PDA were retrospectively reviewed. High non-chylous discharge was defined as postoperative daily serous discharge exceeding 10 mL/kg...
August 18, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/28817614/development-of-a-technique-for-psyllium-husk-mucilage-purification-with-simultaneous-microencapsulation-of-curcumin
#6
André Álvares Monge Neto, Rita de Cássia Bergamasco, Flávio Faria de Moraes, Antônio Medina Neto, Rosane Marina Peralta
This study focused on evaluating a technique for the psyllium husk mucilage (PHM) purification with simultaneous microencapsulation of curcumin. PHM was extracted with water and purified with ethanol. For the mucilage purification and simultaneous microencapsulation, an ethanolic solution of curcumin was used. After dehydration, the samples were analysed by instrumental techniques and evaluated for thermal stability. The presence of curcumin in the solution did not impair the yield of precipitated polysaccharide...
2017: PloS One
https://www.readbyqxmd.com/read/28816032/high-order-in-a-self-assembled-iridium-iii-complex-gelator-towards-nanostructured-iro2-thin-films
#7
Francesca Scarpelli, Andreea Ionescu, Iolinda Aiello, Massimo La Deda, Alessandra Crispini, Mauro Ghedini, Elvira Brunelli, Settimio Sesti, Nicolas Godbert
The preparation and characterization of a new metallogelator based on the Ir(III) discrete cyclometallated complex [(ppy)2Ir(bpy)](CH3CH2OCH2CO2) are reported, where H(ppy) is 2-phenylpiridine and bpy is 2,2'-bipyridine, used as ancillary ligand. The compound is able to self-assemble in water in a range of concentrations between 3% and 6 % w/w, creating a luminescent ordered supramolecular gel. The gel and xerogel architectures were investigated through POM, SEM and TEM microscopies coupled with Powder X-Ray Diffraction...
August 16, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28815763/does-low-energy-collision-induced-dissociation-of-lithiated-and-sodiated-carbohydrates-always-occur-at-anomeric-carbon-of-reducing-end
#8
Shang-Ting Tsai, Jien-Lian Chen, Chi-Kung Ni
RATIONALE: Collision-induced dissociation (CID) tandem mass spectrometry is one of the major methods in the structural determination of carbohydrates. Previous experimental studies and theoretical investigation of lithiated and sodiated underivatized carbohydrates seem to indicate that dehydration reaction and cross ring dissociation of low-energy CID mainly occur at the anomeric carbon of reducing end. However, these studies only investigated few carbohydrates. METHODS: ESI-MS/MS spectra of [M+Li](+) and [M+Na](+) ions of several (18) O1-labeled monosaccharides and disaccharides at O1 of reducing end were studied using linear ion trap mass spectrometer...
August 16, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28815648/direct-uptake-of-hco3-in-the-marine-angiosperm-posidonia-oceanica-l-delile-driven-by-a-plasma-membrane-h-economy
#9
Lourdes Rubio, Delia García, María J García-Sánchez, F Xavier Niell, Hubert H Felle, José A Fernández
Seagrasses access HCO3(-) for photosynthesis by two mechanisms, apoplastic carbonic anhydrase-mediated dehydration of HCO3(-) to CO2 , and direct HCO3(-) uptake. Here we have studied plasma membrane energization and the mechanism for HCO3(-) import in Posidonia oceanica. Classical electrophysiology and ion selective microelectrodes were used to measure the membrane potential, cytosolic pH and the cytosolic concentrations of Na(+) and Cl(-) upon the addition of HCO3(-) . The photosynthetic response to HCO3(-) and to inhibitors was also measured...
August 16, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28814845/texture-modified-food-and-fluids-in-dementia-and-residential-aged-care-facilities
#10
REVIEW
Virginia Painter, David G Le Couteur, Louise M Waite
INTRODUCTION: Dysphagia is common in people living with dementia and associated with increased risk of aspiration pneumonia, dehydration, malnutrition, and death. Treatment options are limited and the use of texture-modified food and fluids (TMF) is a widespread clinical practice. This review aimed to evaluate the evidence for TMF in dementia. METHODS: A literature search using terms "dysphagia," "texture-modified food and fluids," "dementia," and "aged care" was performed by using three electronic databases from 1990 to March 2017...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28813504/effect-of-co2-induced-seawater-acidification-on-growth-photosynthesis-and-inorganic-carbon-acquisition-of-the-harmful-bloom-forming-marine-microalga-karenia-mikimotoi
#11
Shunxin Hu, Bin Zhou, You Wang, Ying Wang, Xinxin Zhang, Yan Zhao, Xinyu Zhao, Xuexi Tang
Karenia mikimotoi is a widespread, toxic and non-calcifying dinoflagellate, which can release and produce ichthyotoxins and hemolytic toxins affecting the food web within the area of its bloom. Shifts in the physiological characteristics of K. mikimotoi due to CO2-induced seawater acidification could alter the occurrence, severity and impacts of harmful algal blooms (HABs). Here, we investigated the effects of elevated pCO2 on the physiology of K. mikimotoi. Using semi-continuous cultures under controlled laboratory conditions, growth, photosynthesis and inorganic carbon acquisition were determined over 4-6 week incubations at ambient (390ppmv) and elevated pCO2 levels (1000 ppmv and 2000 ppmv)...
2017: PloS One
https://www.readbyqxmd.com/read/28813061/indole-synthesis-by-palladium-catalyzed-tandem-allylic-isomerization-furan-diels-alder-reaction
#12
Jie Xu, Peter Wipf
A Pd(0)-catalyzed elimination of an allylic acetate generates a π-allyl complex that is postulated to initiate a novel intramolecular Diels-Alder cycloaddition to a tethered furan (IMDAF). Under the reaction conditions, this convergent, microwave-accelerated cascade process provides substituted indoles in moderate to good yields after Pd-hydride elimination, aromatization by dehydration, and in situ N-Boc cleavage.
August 16, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28812076/a-hydrophilic-inorganic-framework-based-on-a-sandwich-polyoxometalate-unusual-chemoselectivity-for-aldehydes-ketones-with-in-situ-generated-hydroxylamine
#13
Songzhu Xing, Qiuxia Han, Zhuolin Shi, Shugai Wang, PeiPei Yang, Qiang Wu, Mingxue Li
A hydrophilic inorganic porous catalyst was prepared via the hydrothermal method. The combination of [WZn3(H2O)2(ZnW9O34)2](12-) and Co(ii) provides a synergistical catalytic way to promote oximation of aldehyde/ketone with in situ generated hydroxylamine that initially produces an oxime, which further either dehydrates into a nitrile or undergoes a Beckmann rearrangement to form an amide.
August 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28809817/synthesis-and-physicochemical-characterization-of-the-process-related-impurities-of-eplerenone-an-antihypertensive-drug
#14
Iwona Dams, Agata Białońska, Piotr Cmoch, Małgorzata Krupa, Anita Pietraszek, Anna Ostaszewska, Michał Chodyński
Two unknown impurities were observed during the process development for multigram-scale synthesis of eplerenone (Inspra(®)). The new process-related impurities were identified and fully characterized as the corresponding (7β,11α,17α)-11-hydroxy- and (7α,11β,17α)-9,11-dichloroeplerenone derivatives 12a and 13. Seven other known but poorly described in the literature eplerenone impurities, including four impurities A, B, C and E listed in the European Pharmacopoeia 8.4 were also detected, identified and fully characterized...
August 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28807987/use-of-noninvasive-ventilation-during-feeding-tube-placement
#15
REVIEW
Paolo Banfi, Eleonora Volpato, Chiara Valota, Salvatore D'Ascenzo, Chiara Bani Alunno, Agata Lax, Antonello Nicolini, Nicola Ticozzi, Vincenzo Silani, John R Bach
Parenteral nutrition is indicated in amyotrophic lateral sclerosis (ALS) when dysphagia, loss of appetite, and difficulty protecting the airways cause malnutrition, severe weight loss, dehydration, and increased risk of aspiration pneumonia. The aim of this review is to compare percutaneous endoscopic gastrostomy (PEG), radiologically inserted G-tube (RIG), and percutaneous radiologic gastrostomy (PRG) in patients with ALS, performed with or without noninvasive ventilation (NIV). We searched PubMed, MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL), the EBSCO Online Research Database, and Scopus up to December 2015...
August 14, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28807662/a-preliminary-study-of-osmotic-dehydration-in-zebrafish-embryos-implications-for-vitrification-and-ultra-fast-laser-warming
#16
Michelle H Connolly, Estefania Paredes, Peter Mazur
To date, traditional cryopreservation techniques have not been amenable to zebrafish (Danio rerio) embryos, due in part to their large yolky eggs, which have a low surface to volume ratio and limited permeability to water and cryoprotectants. However, recent vitrification and ultra-rapid warming studies in mice have demonstrated successful preservation by dehydrating 85% or more of their total water content. We hypothesized that this approach may help overcome the barriers to embryo cryopresrvation among D...
August 11, 2017: Cryobiology
https://www.readbyqxmd.com/read/28806075/reversible-on-off-switching-of-a-single-molecule-magnet-via-a-crystal-to-crystal-chemical-transformation
#17
Dong-Qing Wu, Dong Shao, Xiao-Qin Wei, Fu-Xing Shen, Le Shi, David Kempe, Yuan-Zhu Zhang, Kim R Dunbar, Xin-Yi Wang
Dynamic molecular crystals are of great interest due to their potential applications. Herein we report the reversible on-off switching of single-molecule magnet (SMM) behavior in a [Mo(CN)7](4-) based molecular compound. Upon dehydration and rehydration, the trinuclear Mn2Mo molecule [Mn(L)(H2O)]2[Mo(CN)7]·2H2O (1) undergoes reversible crystal-to-crystal transformation to a hexanuclear Mn4Mo2 compound [Mn(L)(H2O)]2[Mn(L)]2[Mo(CN)7]2 (2). This structural transformation involves the breaking and reforming of coordination bonds which leads to significant changes in the color and magnetic properties...
August 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28806049/electrolytes-oral-electrolyte-solutions
#18
Lisa Harris
Oral electrolyte solutions are used widely for rehydration in diarrheal illness and to maintain hydration during vigorous exercise. In diarrheal illness, an oral rehydration solution (ORS) typically is preferred over intravenous fluids except for patients with severe dehydration. The preferred ORS is one similar to the glucose-containing reduced osmolarity World Health Organization ORS. There also are polymer-based solutions that use rice or wheat as the source of carbohydrates but these are not widely recommended...
August 2017: FP Essentials
https://www.readbyqxmd.com/read/28805916/the-reduction-of-starch-in-finishing-diets-supplemented-with-oil-does-not-prevent-the-accumulation-of-trans-10-18-1-in-lamb-meat
#19
M Costa, S P Alves, A Francisco, J Almeida, C M Alfaia, S V Martins, J A M Prates, J Santos-Silva, O Doran, R J B Bessa
The experiment was conducted to test the hypothesis that the replacement of cereal with low-starch feed ingredients in lambs' finishing diets supplemented with oils could prevent the accumulation of -10-18:1 in meat. Forty lambs were fed 1 of 4 diets supplemented with soybean oil (5.9%) and fish oil (1%) for 6 wk before slaughter. The control (CON) diet contained 43% barley, and in the other diets, barley was completely replaced by dehydrated citrus pulp (DCP), dehydrated sugar beet pulp (DBP), or soybean hulls (SH)...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805732/the-mechanistic-links-between-insulin-and-cystic-fibrosis-transmembrane-conductance-regulator-cftr-cl-channel
#20
REVIEW
Yoshinori Marunaka
The cystic fibrosis transmembrane conductance regulator (CFTR) Cl(-) channel belongs to the ATP-binding cassette (ABC) transporter superfamily and regulates Cl(-) secretion in epithelial cells for water secretion. Loss-of-function mutations to the CFTR gene cause dehydrated mucus on the apical side of epithelial cells and increase the susceptibility of bacterial infection, especially in the airway and pulmonary tissues. Therefore, research on the molecular properties of CFTR, such as its gating mechanism and subcellular trafficking, have been intensively pursued...
August 14, 2017: International Journal of Molecular Sciences
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