Search Results
Results 201 - 250 of 3458
< 1 2 3 4 5 6 7 8 9 10 >
Yuanhai Zhang Z 1Zhejiang Quhua Hospital, Quzhou, - - 2014
Hydrofluoric acid, a highly dangerous substance, can cause tissue damage and systemic toxicity by its unique mechanisms. Many cases of severe faciocervical burns due to hydrofluoric acid exposure are lethal. Herein, we present a case of 37-year-old man who suffered from hydrofluoric acid burns to his face, anterior neck, lips, ...
Liao Li-Ting LT Department of Laboratory Medicine, Wan Fang Hospital, Taipei Medical University, No. 111, Section 3, Hsing-Long Rd., Taipei 116, - - 2014
Uric acid measurement has become increasingly important, and electrochemical modified detection method based portable devices hold a dominate position in the market for point of care and self-monitoring of uric acid blood levels. However, there has been a lack of detailed performance evaluation of the electrochemical detection devices that are ...
Yokoi Toshiyuki T Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan. - - 2014
Treatment of the zeolitic layered precursor of Al-MWW, so-called Al-MWW(P), with diethoxydimethylsilane (DEDMS) in acidic media leads to the formation of an aluminosilicate-type interlayer-expanded zeolite MWW (Al-IEZ-MWW) with expanded 12-membered ring (12-MR) micropores. However, the silylation process under acidic conditions simultaneously causes dealumination from the MWW framework, resulting in a ...
Han Lianshu L Department of Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiaotong University School of Medicine, Shanghai, - - 2014
Information concerning inherited metabolic diseases in China is scarce. We investigated the prevalence and age distributions of amino acid, organic acid, and fatty acid oxidation disorders in Chinese patients. Blood levels of amino acids and acylcarnitines (tandem mass spectrometry) were measured in 18,303 patients with suspected inherited metabolic diseases. Diagnosis ...
Grijalvo Santiago S Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), and Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Department of Chemical and Biomolecular Nanotechnology , Jordi Girona 18-26, 08034 Barcelona , Spain +34 934006145 ; +34 932045904 ; - - 2014
Introduction: The use of aptamers, antisense technology and RNA interference has allowed nucleic acids to be considered as promising alternatives to classical drugs. However, nucleic acids face several obstacles in the creation of effective nucleic acid drugs. The development of these approaches has strengthened the pipeline with an increasing number ...
Mustafa Hussein H HH School of Chemistry, Bangor University, Bangor, Gwynedd, LL57 - - 2014
Ozonolysis of Z,Z,Z-cylonona-1,4,7-triene leads to a 1,9-difunctionalised Z,Z-3,6-nonadiene which is readily converted into a range of polyunsaturated pheromones and fatty acids.
Kesebir Sermin S Erenköy Psychiatry Education and Research Hospital, Istanbul, - - 2014
The aim of this study was to investigate whether uric acid levels are different between patients with remission period of bipolar disorder type I (BD) and patients with remission period of major depressive disorder (MDD). For this aim 41 patients diagnosed with BD and 30 patients diagnosed with recurrent MDD ...
Huerlimann Roger R School of Marine and Tropical Biology, James Cook University, Townsville 4811, Australia; Centre for Sustainable Tropical Fisheries and Aquaculture, Townsville 4811, Australia; James Cook University, Comparative Genomics Centre, Townsville, Queensland 4811, - - 2014
Very long-chain polyunsaturated fatty acids (VLC-PUFAs) are important dietary requirements for maintaining human health. Many marine microalgae are naturally high in ω-3 VLC-PUFAs, however, the molecular mechanisms underpinning fatty acid (FA) desaturation and elongation in algae are poorly understood. An advanced molecular understanding would facilitate improvements of this nascent industry. ...
Liu Bingjie B College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China. changjunbiao@zzu.edu.cn - - 2014
A straightforward and efficient copper(i)/amino acid-catalyzed intramolecular Ullmann-type C-O coupling reaction has been developed. This protocol affords a facile methodology for the synthesis of a series of novel 2,4,5-substituted oxazoles from readily accessible N-acyl-2-bromo enamides under mild conditions.
Liu Ming - - 2014
Imine cage molecules can be reduced to amines to improve their chemical stability, but this introduces molecular flexibility. Hence, amine cages tend not to exhibit permanent, solid-state porosity. We report a synthetic strategy to achieve shape per-sistence in amine cages by tying the cage vertices with carbonyls such as formaldehyde. ...
Fonseca-Madrigal Jorge J Universidad Michoacana de San Nicolas de Hidalgo, - - 2014
Currently existing data show that the capability for long-chain polyunsaturated fatty acids (LC-PUFA) biosynthesis in teleost fish is more diverse than in other vertebrates. Such diversity has been primarily linked to the subfunctionalization that teleostei Fads2 desaturases have undergone during evolution. We previously showed that Chirostoma estor, one of the ...
Tang Zhenchen Z State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (PR - - 2014
The transformation of cellulose or cellulose-derived carbohydrates into platform chemicals is the key to establish biomass-based sustainable chemical processes. The systems able to catalyze the conversion of cellulose into key chemicals in water without the consumption of hydrogen are limited. We report that simple vanadyl (VO(2+) ) cations catalyze the ...
Vecino X X Chemical Engineering Department, School of Industrial Engineering (EEI), University of Vigo., Campus As Lagoas-Marcosende., 36310, Vigo-Pontevedra, - - 2014
There is currently much interest in the use of natural biosurfactants and bioemulsifiers, mainly in the cosmetic, pharmaceutical and food industries. However, there are no studies about the optimization of the extraction conditions of cell bound biosurfactants. In this work, a biosurfactant with emulsifier properties was extracted from L. pentosus ...
Procentese Alessandra A Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le V. Tecchio 80, 80125 Napoli, - - 2014
The paper reports the assessment of the growth kinetics of Clostridium acetobutylicum DSM 792 adopting xylose as carbon source. Xylose is the fundamental component of hemicellulose hydrolysis, a relevant fraction of lignocellulosic feedstocks for biofuel production. Tests were carried out in a CSTR operated under controlled pH. The effects of ...
Gao Bifen - - 2014
Anatase TiO2 microspheres with a high percentage of exposed (001) facets were synthesized by a template-free hydrothermal method without using concentrated hydrofluoric acid. The influence of various experiment conditions, such as hydrothermal temperature, acid condition, reaction time, etc., on the morphology of the final products was investigated in detail. The ...
Budak Nilgün H NH Dept. of Food Technology, Egirdir Vocational School, Süleyman Demirel Univ., Isparta, - - 2014
A variety of natural vinegar products are found in civilizations around the world. A review of research on these fermented products indicates numerous reports of health benefits derived by consumption of vinegar components. Therapeutic effects of vinegar arising from consuming the inherent bioactive components including acetic acid, gallic acid, catechin, ...
Weaver Karen - - 2014
Lipid is an essential macronutrient in parenteral nutrition (PN) support. intravenous (IV) lipid provides essential fatty acids and a concentrated calorie source. Preterm infants are at risk for essential fatty deficiency early in life. Lipid administration is associated with some risks, and there are guidelines for administration to minimize complications. ...
- - 2014
A short-cut review was carried out to establish whether topical tranexamic acid can be used to treat spontaneous epistaxis. Thirty-three papers were found, of which two presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results ...
Desideri G G Geriatric Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy. - - 2014
The actual reference range of serum uric acid has been assessed according to its variations among healthy individuals. i.e. those without clinical evidence of gout. By this approach, serum uric acid values between 3.5 and 7.2 mg/dL in adult males and postmenopausal women and between 2.6 and 6.0 mg/dL in ...
Ng'ong'ola-Manani Tinna A - - 2014
[This corrects the article on p. 114 in vol. 2, PMID: 24804070.].
Germani A A Departmentpt of Experimental Medicine, RU of Food Science and Human Nutrition, Sapienza University of Rome, - - 2014
To analyze the yogurt amino acid profile starting from marketing through the whole shelf-life. The evaluation of the proteolytic activity of Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus salivarius subsp. thermophilus, allows to deduce their vitality during the shelf-life period and within 45 days. Three types of full fats yogurts have ...
Yu Yi - - 2014
Fabry disease (FD) is an X-linked lysosomal storage disorder caused by mutations in the GLA gene often leading to missense α-galactosidase A (α-Gal A) variants that undergo premature endoplasmic reticulum-associated degradation due to folding defects. We have conceived a new family of neutral amphiphilic pharmacological chaperones, namely 1-deoxygalactonojirimycin-arylthioureas (DGJ-ArTs), capable ...
Tenca Andrea A Gastroenterology Unit 2, Università degli Studi di Milano and Fondazione IRCCS "Ca' Granda" - Ospedale Maggiore Policlinico, Milan, - - 2014
Symptom reflux association analysis is especially helpful for evaluation and management of proton pump inhibitor (PPI) re-fractory patients. An accurate calculation requires manual editing of 24-hour multichannel intraluminal impedance-pH (MII-pH) tracings after automatic analysis. Intra- and inter-observer agreement as well as reliability of rapid editing confined to the time around ...
Malcher Jakub - - 2014
Peptide Nucleic Acids (PNAs) are molecules combining structural features of proteins and nucleic acid. They resemble DNA or RNA by forming helical polyamides containing nitrogen bases attached to the backbone consisting of N-(2-aminoethyl)-glycine monomers, which mimics the alternating ribose-phosphodiester-backbone of a nucleic acid. Because PNAs bind exceptionally strong to complementary ...
Clausen Morten R - - 2014
Genetic variation is the most influential factor for carrot (Daucus carota L.) composition. However, difference in metabolite content between carrot varieties has not been described by NMR although primary metabolites are important for human health and sensory properties. The aim of the present study was to investigate the effect of ...
Mee Michael T MT Department of Biomedical Engineering, Boston University, Boston, MA - - 2014
Metabolic crossfeeding is an important process that can broadly shape microbial communities. However, little is known about specific crossfeeding principles that drive the formation and maintenance of individuals within a mixed population. Here, we devised a series of synthetic syntrophic communities to probe the complex interactions underlying metabolic exchange of ...
Kovash Curtiss S CS Jr Department of Coatings and Polymeric Materials, North Dakota State University, PO Box 6050, Dept 2760, Fargo, ND 58108 - - 2014
A new 100 % bio-based thermosetting coating system was developed from epoxidized sucrose soyate crosslinked with blocked bio-based dicarboxylic acids. A solvent-free, green method was used to block the carboxylic acid groups and render the acids miscible with the epoxy resin. The thermal reversibility of this blocking allowed for the formulation ...
Leskey Tracy C - - 2014
Plum curculio, Conotrachelus nenuphar (Herbst), one of the most important pests of apple in eastern and central North America, is usually managed in New England apple orchards by multiple full-block insecticide applications. Efforts to reduce insecticide inputs against plum curculio include using an "attract and kill" approach: odor-baited trap trees ...
Diesendruck Charles E CE 1] Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA [2] Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, - - 2014
Biological systems rely on recyclable materials resources such as amino acids, carbohydrates and nucleic acids. When biomaterials are damaged as a result of aging or stress, tissues undergo repair by a depolymerization-repolymerization sequence of remodelling. Integration of this concept into synthetic materials systems may lead to devices with extended lifetimes. ...
Ng Carla A CA Safety and Environmental Technology Group, Institute for Chemical and Bioengineering, ETH Zurich , Zurich 8093, - - 2014
In this review, we consider the two prevailing hypotheses for the mechanisms that control the bioaccumulation of perfluorinated alkyl acids (PFAAs). The first assumes that partitioning to membrane phospholipids, which have a higher affinity for charged species than neutral storage lipids, can explain the high bioaccumulation potential of these compounds. ...
Ottosson N N FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands. ottosson@amolf.nl - - 2014
We study the conformation and reorientation dynamics of the inhibitory neurotransmitter γ-aminobutyric acid (GABA) under neutral and acidic conditions using a combination of broadband dielectric relaxation spectroscopy and polarization-resolved femtosecond mid-infrared pump-probe spectroscopy. We find that both zwitterionic and cationic GABA adopt nearly linear conformations in aqueous solution, meaning that ...
Dydio PaweĊ‚ P van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The - - 2014
This protocol describes how to prepare 2-(2-formylalkyl)-arenecarboxylic acid derivatives, common building blocks for the synthesis of various valuable chemicals (e.g., anti-obesity and Alzheimer's disease treatment pharmaceuticals), by using the fully regioselective hydroformylation of vinyl arene derivatives. This catalytic reaction proceeds cleanly with 100% regioselectivity and chemoselectivity. The procedure is reliably ...
Xu Jiacui J Ernst Moritz Arndt Universität Greifswald, Institut für Biochemie, Felix Hausdorff Strasse 4, 17487 Greifswald (Germany); Current address: Department of Biochemistry, University of Wisconsin, 433 Babcock Drive, Madison, WI 53706 - - 2014
In the transition from the RNA world to the modern DNA/protein world, RNA-catalyzed aminoacylation might have been a key step towards early translation. A number of ribozymes capable of aminoacylating their own 3' termini have been developed by in vitro selection. However, all of those catalysts require a previously activated ...
Le Tien Xuan TX Université Paris-Sud and CNRS, Laboratoire de Synthèse de Biomolécules, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182, 91405 Orsay (France); Department of Chemical Engineering, HCMC University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City - - 2014
The umpolung of glycals with samarium diiodide offers a simple route to novel carbohydrate-derived nucleophilic reagents in a single step using a readily available reductant. The corresponding allyl samarium reagent that arises from the hexose series reacts with ketones at the C3 position with high stereoselectivity; carbon-carbon bond formation takes ...
Chandra Suman - - 2014
Two new chemically stable functional crystalline COFs (Tp-Azo and Tp-Stb) were synthesized using the Schiff base reaction between triformylphloroglucinol (Tp) and 4,4'-azodianiline (Azo) or 4,4'-diaminostilbene (Stb), respectively. Both COFs show the expected keto-enamine form, and high stability towards boiling water, strong acidic and basic media. H3PO4 doping in Tp-Azo leads ...
Escudero-Casao Margarita - - 2014
In recent years, peptidomimetics have gained enormous importance in drug design aiming to achieve increased drug metabolic stability and higher selectivity. In the field of peptidomimetics, β-peptides incorporating β2- and β3-amino acids (the higher homologs of natural β-amino acids) provide a powerful method for the synthesis of peptidomimetics with particular ...
Gangidi Rahul Reddy RR Lipid Science and Traditional Foods Dept, CSIR Central Food Technological Research Inst. (CFTRI), Mysore, Karnataka, 570020, - - 2014
Conjugated linoleic acid (CLA) that is commonly found in dairy and ruminant fats, is geometrical and positional isomer of linoleic acid (LA). Edible oils are not good sources of CLA. Attempts have been made to generate CLA in edible oils through photoisomerization procedures. CLA isomers have several proven health benefits. ...
Alonso Saúl S Department of Chemical Engineering and Environmental Technology, Faculty of Chemistry, University of Oviedo , Oviedo , - - 2014
Abstract Microbial production of organic acids has become a fast-moving field due to the increasing role of these compounds as platform chemicals. In recent years, the portfolio of specialty fermentation-derived carboxylic acids has increased considerably, including the production of glyceric, glucaric, succinic, butyric, xylonic, fumaric, malic, itaconic, lactobionic, propionic and ...
Sbihi Hassen Mohamed HM King Saud Univ, College of Science, Chemistry Dept, P.O. BOX 2454, Riyadh 1145, Saudi - - 2014
Seed oils with high polyunsaturated fatty acid content are used in various industries including the food and pharmaceutical industries. White mahlab (Prunus mahaleb L.) seed was found to contain 31% oil. The oil was highly polyunsaturated and abundant in α-eleostearic (38.32%), oleic (31.29%), and linoleic (22.96%) acids, which together comprised ...
Badenhorst Christoffel Petrus Stephanus CP Biochemistry Division, Centre for Human Metabonomics, North-West University , Potchefstroom , South - - 2014
Abstract A number of endogenous and xenobiotic organic acids are conjugated to glycine, in animals ranging from mosquitoes to humans. Glycine conjugation has generally been assumed to be a detoxification mechanism, increasing the water solubility of organic acids in order to facilitate urinary excretion. However, the recently proposed glycine deportation ...
Astakhova I Kira IK Nucleic Acid Center, Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense M, - - 2014
Conspectus Incorporation of chemically modified nucleotide scaffolds into nucleic acids to form assemblies rich in function is an innovative area with great promise for nanotechnology and biomedical and material science applications. The intrinsic biorecognition potential of nucleic acids combined with advanced properties of the locked nucleic acids (LNAs) provide opportunities ...
Lorente José J IBMC-JBT Corp., FoodTech R&D Alliance, Instituto de Biología Molecular y Celular, Universidad Miguel Hernández (UMH) - Campus de Orihuela, Carretera de Beniel km 3.2, 03312 Orihuela, Alicante, - - 2014
To contribute for setting reference guideline for commercial juice extracted from the Spanish lemon varieties, chemical composition of 92 direct and 92 reconstituted samples were investigated. In direct lemon juice, titratable acidity was 52.4g/L, being the citric acid the main component. Glucose, fructose and sucrose concentrations were 7.9, 7.3 and ...
Sun Li-Jun LJ Institute of Analytical Chemistry for Life Science, School of Public Health, Nantong University, 9 Seyuan Rd., Nantong, Jiangsu 226019, People's Republic of - - 2014
Detection of phytohormones in situ has gained significant attention due to their critical roles in regulating developmental processes and signaling for defenses in plants at low concentration. As one type of plant hormones, salicylic acid has recently been found to be one of pivotal signal molecules for physiological behaviors of ...
Tiboni Marcela M Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, PR, 80210-170, - - 2014
Ligno(hemi)cellulosics (L(h)Cs) as sugarcane bagasse and loblolly pine sawdust are currently being used to produce biofuels such as bioethanol and biobutanol through fermentation of free sugars that are often obtained enzymatically. However, this bioconversion requires a pretreatment to solubilize the hemicellulose fractions, thus facilitating the action of the cellulolytic enzymes. ...
Xie Neng-Zhong NZ State Key Laboratory of Non-food Biomass Energy and Enzyme Technology, National Engineering Research Center for Non-food Biorefinery, Guangxi Academy of Sciences, Nanning 530007, Guangxi, People's Republic of - - 2014
Muconic acid (MA), a high value-added bio-product with reactive dicarboxylic groups and conjugated double bonds, has garnered increasing interest owing to its potential applications in the manufacture of new functional resins, bio-plastics, food additives, agrochemicals, and pharmaceuticals. At the very least, MA can be used to produce commercially important bulk ...
Calce Enrica E Institute of Biostructures and Bioimaging, National Research Council, 80134 Naples, - - 2014
Several pectin derivatives were prepared by chemical modifications of the polysaccharide with natural fatty acids. The obtained biodegradable pectin-based materials, pectin-linoleate, pectin-oleate and pectin-palmitate, were investigated for their antimicrobial activity against several bacterial strains, Staphylococcus aureus and Escherichia coli. Good results were obtained for pectin-oleate and pectin-linoleate, which inhibit the ...
López Garzón Camilo S CS Delft University of Technology, Department of Biotechnology, Julianalaan 67, 2628 BC Delft, the - - 2014
Carboxylic acids such as citric, lactic, succinic and itaconic acid are useful products and are obtained on large scale by fermentation. This review describes the options for recovering these and other fermentative carboxylic acids. After cell removal, often a primary recovery step is performed, using liquid-liquid extraction, adsorption, precipitation or ...
Neerathilingam Muniasamy M Institute of Molecular Medicine, The University of Texas Health Sciences Centre at Houston, 1825 Pressler Street, Houston, TX 77030, U.S.A; Centre for Cellular and Molecular Platforms, NCBS-TIFR, GKVK Post, Bellary Road, Bangalore 560065, India. Electronic address: - - 2014
Inclusion bodies (IBs) are commonly formed in E.coli during over expression of recombinant proteins in non-native state. Isolation, denaturation and refolding of these IBs is generally practiced to obtain functional protein. However, along this process IBs tend to form non-specific interactions with sheared nucleic acids from the genome, thus getting ...
Pradhan Tuhin T Department of Chemistry, Korea University, Seoul 130-701, Korea. - - 2014
In the past few decades, the development of chemosensors for neurotransmitters has emerged as a research area of significant importance, which attracted a tremendous amount of attention due to its high sensitivity and rapid response. This current review focuses on various neurotransmitter detection based on fluorescent or colorimetric spectrophotometry published ...
Napora-Wijata Kamila K ACIB GmbH, Graz, - - 2014
An increasing demand for non-petroleum-based products is envisaged in the near future. Carboxylic acids such as citric acid, succinic acid, fatty acids, and many others are available in abundance from renewable resources and they could serve as economic precursors for bio-based products such as polymers, aldehyde building blocks, and alcohols. ...
< 1 2 3 4 5 6 7 8 9 10 >