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Ortiz-Muñiz B B Instituto Tecnológico de Veracruz, Unidad de Investigación y Desarrollo en Alimentos (UNIDA), Av. Miguel A. de Quevedo 2779, Col. Formando Hogar, C.P. 91860, Veracruz, - - 2014
The use of lignocellulosic residues for ethanol production is limited by toxic compounds in fermenting yeasts present in diluted acid hydrolysates like acetic acid and 2-furaldehyde. The respiratory deficient phenotype gives the cell the ability to resist several toxic compounds. So the aim of this work was to evaluate the ...
Drago Lorenzo L Laboratory of Clinical Chemistry and Microbiology, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy; Laboratory of Technical Medical Sciences, Department of Biomedical Science for Health, University of Milan, Milan, - - 2014
To address the problem of limited efficacy of existing antibiotics in the treatment of bacterial biofilm, it is necessary to find alternative remedies. One candidate could be hyaluronic acid; this study therefore aimed to evaluate the in vitro antiadhesive and antibiofilm activity of hyaluronic acid toward bacterial species commonly isolated ...
Zuo Zhiwei Z Merck Center for Catalysis, Princeton University , Princeton, New Jersey 08544, United - - 2014
The direct decarboxylative arylation of α-amino acids has been achieved via visible light-mediated photoredox catalysis. This method offers rapid entry to prevalent benzylic amine architectures from an abundant biomass, specifically α-amino acid precursors. Significant substrate scope is observed with respect to both the amino acid and arene components.
Wang Wei W Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China; Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA. Electronic address: - - 2014
Short-chain acyl-CoA dehydrogenase (SCAD) deficiency is an autosomal recessive inborn error of metabolism that leads to the impaired mitochondrial fatty acid β-oxidation of short chain fatty acids. It is heterogeneous in clinical presentation including asymptomatic in most patients identified by newborn screening. Multiple mutations have been identified in patients; however, ...
Fu Juan-Juan JJ Department of Infectious Diseases, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, - - 2014
Amino acid variations in several HCV genomic regions have been reported to be associated with response to IFN plus ribavirin combination therapy. However, the results remained controversial. In this study, we further investigated the amino acid variation of full-length HCV genome and its correlation to the response to peginterferon-alpha (PEG-IFNα) ...
Harauma Akiko A School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Sagamihara, Kanagawa 252-5201, Japan; Human Life Science Research and Development Center, Nippon Suisan Kaisha Ltd., 2-6-2, Otemachi, Chiyoda-ku, Tokyo 100-8686, - - 2014
The purpose of this study was to determine the change in tear volume, as a predominant symptom of dry eye syndrome, in dietary n-3 fatty acid deficient mice compared with n-3 fatty acid adequate mice. The tear volume in n-3 fatty acid deficient mice was significantly lower than that in ...
Sun Yuehong Y No. 99 Haike Road, Pudong, Shanghai, PR - - 2014
2-Ketogluconic acid production by Klebsiella pneumoniae is a pH-dependent process, strictly proceeding under acidic conditions. Unfortunately, cell growth is inhibited by acidic conditions, resulting in low productivity of 2-ketogluconic acid. To overcome this deficiency, a two-stage fermentation strategy was exploited in the current study. During the first stage, the culture ...
Pougovkina Olga O Laboratory Genetic Metabolic Diseases, Department of Clinical Chemistry, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The - - 2014
Inherited disorders of acyl-CoA metabolism, such as defects in amino acid metabolism and fatty acid oxidation can present with severe clinical symptoms either neonatally or later in life, but the pathophysiological mechanisms are often incompletely understood. We now report the discovery of a novel biochemical mechanism that could contribute to ...
Pride Aaron C AC Department of Molecular Biosciences, The University of Texas at Austin, TX - - 2014
Bacterial lipases play important roles in bacterial metabolism and environmental response. Our laboratory recently discovered that a novel lipoprotein lysophospholipase - VolA - localizes on the surface of the Gram-negative aquatic pathogen Vibrio cholerae. VolA functions to cleave exogenous lysophosphatidylcholine, freeing the fatty acid moiety for use by V. cholerae. ...
Pang Jing J School of Medicine and Pharmacology, University of Western Australia, Perth, - - 2014
Statins are the cornerstone of lipid-modifying therapy for dyslipidemias and reducing cardiovascular events. Recent US guidelines have shifted away from the concept of cholesterol targets and are encouraging moderate-to-high statin intensity. However, residual risk and statin intolerance remains a significant challenge. Therapies beyond the statins, for combination or monotherapy, include ...
Scaglione Francesco F Department of Medical Biotechnology and Translational Medicine, University of Milan , Milan , - - 2014
Abstract 1.  Folate, an essential micronutrient, is a critical cofactor in one-carbon metabolism. Mammals cannot synthesize folate and depend on supplementation to maintain normal levels. Low folate status may be caused by low dietary intake, poor absorption of ingested folate and alteration of folate metabolism due to genetic defects or ...
Ezebor Francis F School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, - - 2014
The use of pseudo-infinite methanol in increasing the rate of esterification and transesterification reactions was studied using oil palm trunk (OPT) and sugarcane bagasse (SCB) derived solid acid catalysts. The catalysts were prepared by incomplete carbonisation at 400°C for 8h, followed by sulfonation at 150°C for 15h and characterised using ...
Gallego-Delgado Julio J New York University School of Medicine, 341 E. 25th St., New York, NY, 10010, USA, - - 2014
Malaria, which is caused by Plasmodium parasite erythrocyte infection, is a highly inflammatory disease with characteristic periodic fevers caused by the synchronous rupture of infected erythrocytes to release daughter parasites. Despite the importance of inflammation in the pathology and mortality induced by malaria, the parasite-derived factors inducing the inflammatory response ...
Saludes Jonel P JP Department of Chemistry, Washington State University, Pullman, Washington 99164, - - 2014
We developed a simple, rapid and efficient microwave irradiation-assisted protocol that is 1- to 2-orders of magnitude faster than conventional techniques, providing an expedient access to the sialic acid congeners Neu5Ac1Me (1), Neu5Acβ1,2Me2 (2), Neu5Ac1Me O-peracetate (3) and 4,5-oxazoline of Neu5Ac2en1Me O-peracetate (4).
Viswambharan Baby B Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO-UMR 8182), Univ. Paris-Sud , CNRS, Bât 410, Orsay F-91405 - - 2014
An asymmetric aldol reaction by memory of chirality is reported with a substrate control of stereoselectivity by aldehyde and rationalized. Starting from l-alanine, several diastereopure and enantioenriched β-hydroxy quaternary α-amino acids have been obtained in three steps. The initial chirality of l-alanine is memorized through the dynamic axial chirality of ...
Abe Yuichi Y Department of Biology, Faculty of Sciences, Kyushu University Graduate School, Fukuoka 812-8581, - - 2014
Peroxisomes are subcellular organelles that function in multiple anabolic and catabolic processes, including β-oxidation of very-long-chain fatty acids (VLCFA) and biosynthesis of ether phospholipids. Peroxisomal disorders caused by defects in peroxisome biogenesis or peroxisomal β-oxidation manifest as severe neural disorders of the central nervous system. Abnormal peroxisomal metabolism is thought ...
Fuchs Silke S Department of Life Sciences, Imperial College London, London, United - - 2014
The blood meal of the female malaria mosquito is a pre-requisite to egg production and also represents the transmission route for the malaria parasite. The proper and rapid assimilation of proteins and nutrients in the blood meal creates a significant metabolic challenge for the mosquito. To better understand this process ...
Gharekhani Afshin - - 2014
Anemia is a common complication among hemodialysis (HD) patients. Although intravenous iron and erythropoiesis-stimulating agents revolutionized anemia treatment, about 10% of HD patients show suboptimal response to these agents. Systemic inflammation and increased serum hepcidin level may contribute to this hyporesponsiveness. Considering the anti-inflammatory properties of omega-3 fatty acids, this ...
Hafandi Ahmad A School of Psychological Science, La Trobe University, Victoria, Australia; Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, University Putra Malaysia, Serdang, Selangor Malaysia. - - 2014
Dietary deficiency of ω3 fatty acid during development leads to impaired cognitive function. However, the effects of multiple generations of ω3 fatty-acid deficiency on cognitive impairment remain unclear. In addition, we sought to test the hypothesis that the cognitive impairments of ω3 fatty-acid-deficient mice are mediated through the arachidonic acid-cyclooxygenase ...
Tamura Asako A Department of Neurology, Mie University Graduate School of - - 2014
A 35-year-old woman was admitted with subacute intellectual deterioration. Laboratory studies showed elevated total homocysteine and decreased folic acid. MRI revealed leukoencephalopathy with a posterior predominance, and hyperintensity in the pyramidal tracts on T2-weighted and FLAIR images. The enzyme assay showed a deficiency of methylenetetrahydrofolate reductase (MTHFR) activity with low ...
Soreze Yohan - - 2013
Synthesis and apoenzyme attachment of lipoic acid have emerged as a new complex metabolic pathway. Mutations in several genes involved in the lipoic acid de novo pathway have recently been described, but no mutation was found so far in genes involved in the specific process of attachment of lipoic acid ...
Moretti Diego D Laboratory of Human Nutrition, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, ETH Zürich, Zürich, - - 2013
Several strategies appear suitable to improve iron and zinc bioavailability from fortified maize, and fortification per se will increase the intake of bioavailable iron and zinc. Corn masa flour or whole maize should be fortified with sodium iron ethylenediaminetetraacetate (NaFeEDTA), ferrous fumarate, or ferrous sulfate, and degermed corn flour should ...
Lee L T - - 2013
We describe a patient with clinical, radiological and pathological features of bronchiolitis obliterans organizing pneumonia. Investigation showed that this was likely to have been a delayed consequence of inhalation of nitric acid fumes (containing nitrogen dioxide) after a fire. This case shows that thorough investigation of the aetiology is important ...
Xavier Acasigua Gerson Arisoly - - 2013
Bacterial cellulose (BC) has become established as a remarkably versatile biomaterial and can be used in a wide variety of applied scientific applications, especially for medical devices. In this work, the bacterial cellulose fermentation process is modified by the addition of hyaluronic acid and gelatin (1% w/w) to the culture ...
Xu Mo - - 2013
Intracellular lipid-binding proteins (LBPs) impact fatty acid homeostasis in various ways, including fatty acid transport into mitochondria. However, the physiological consequences caused by mutations in genes encoding LBPs remain largely uncharacterized. Here, we explore the metabolic consequences of lbp-5 gene deficiency in terms of energy homeostasis in Caenorhabditis elegans. In ...
Kreutzer Martin F - - 2013
Micacocidin is a promising natural product for the treatment of Mycoplasma pneumoniae infections. In the biosynthesis of this antibiotic, a fatty acid-AMP ligase (FAAL) activates the starter unit hexanoic acid as acyl-adenylate and forwards it to an iteratively acting polyketide synthase. Biochemical analysis of the FAAL revealed an extended substrate ...
Cobbold Simon A - - 2013
The malaria parasite P. falciparum depends on glucose to meet its energy requirements during blood-stage development. Although glycolysis is one of the best understood pathways in the parasite, it is unclear if glucose metabolism appreciably contributes to the acetyl-CoA pools required for tricarboxylic acid metabolism (TCA) and fatty acid biosynthesis. ...
Nouws Jessica - - 2013
Oxidative phosphorylation and fatty acid oxidation are two major metabolic pathways in mitochondria. Acyl-CoA dehydrogenase 9 (ACAD9), an enzyme assumed to play a role in fatty acid oxidation, was recently identified as a factor involved in complex I biogenesis. Here we further investigated the role of ACAD9's enzymatic activity in ...
Komatsuya Keisuke - - 2013
Heme biosynthesis appeared to be a target of malaria therapy because 5-aminolevulinic acid (ALA), a heme biosynthesis starting material, with light exposure or a high amount of ALA alone reduced Plasmodium falciparum growth to undetectable level. However, the administration of a high dose of ALA is unrealistic for clinical therapy. ...
Kong Aiguo - - 2013
Iron ORR: An ordered, mesoporous, Fe-porphyrin-like material was created through the nanocasting and pyrolysis of traditional Fe-N4 porphyrins. The resulting nonprecious metal electrocatalyst was used for the oxygen reduction reaction in both alkaline and acidic media.
Sheet Debobrata - - 2013
Immobilized biomimetic iron complex: An iron(II)-benzoylformate complex of a thiol-appended N4 ligand immobilized on gold nanoparticles has been shown to activate dioxygen to carry out oxidative decarboxylation of benzoylformic acid to benzoic acid catalytically.
Jeon Sangjun - - 2013
This study presents a new and effective downstream process to recover 2,3-butanediol (2,3-BD) from fermentation broth which is produced by a recombinant Klebsiella pneumoniae strain. The ldhA-deficient K. pneumoniae strain yielded about 90 g/L of 2,3-BD, along with a number of by-products, such as organic acids and alcohols, in a 65 h ...
Chen Lijuan - - 2013
In order to study the effective mechanism of a traditional Chinese medicine (TCM), modified Jiu Wei Qiang Huo decoction (MJWQH), against H1N1-induced pneumonia in mice, we chose a holistic approach. A reverse-phase liquid chromatography with quadruple time-of-flight mass spectrometry (LC-Q-TOF-MS) was developed to determine metabolomic biomarkers in mouse serum for ...
Sriboonvorakul Natthida - - 2013
Acidosis is an important cause of mortality in severe falciparum malaria. Lactic acid is a major contributor to metabolic acidosis, but accounts for only one-quarter of the strong anion gap. Other unidentified organic acids have an independent strong prognostic significance for a fatal outcome. In this study, a simultaneous bio-analytical ...
Bruckert William M - - 2013
Upon entry of Legionella pneumophila into amoeba and macrophages, host-mediated farnesylation of the AnkB effector enable its anchoring to the Legionella-containing vacuole (LCV) membrane. On the LCV, AnkB triggers docking of K(48)-linked polyubiquitinated proteins that are degraded by the host proteasomes to elevate cellular levels of amino acids needed for ...
Jørgensen Anna S - - 2013
Herein we describe fluorescent oligonucleotides prepared by click chemistry between novel alkyne-modified locked nucleic acid (LNA) strands and a series of fluorescent azides for homogeneous (all-in-solution) detection of nucleic acids and autoimmune antibodies.
Fechtner Tim - - 2013
In a previous study we reported that the OmcB protein from Chlamydia pneumoniae mediates adhesion of the infectious elementary body to human HEp-2 cells by interacting with heparin/heparan sulfate-like glycosaminoglycans (GAGs) via basic amino acids located in the first of a pair of XBBXBX heparin-binding motifs. In the present study ...
Arnoux Jean-Baptiste - - 2013
Objective/Context:Long-fasting hypoglycemia in children may be induced by neurotransmitter disorders.Case Report:A 5-year-old girl with a medical history of chronic diarrhea presented three episodes of severe hypoglycemia (20 mg/dL) between ages 3 and 5 years. She became pale and sweaty with hypothermia (33.5°C), bradycardia (45 bpm), and acidosis and presented a ...
Miao Tao - - 2013
The rapid and efficient direct C2-arylation of free (NH)-indoles with arylsulfinic acids proceeded through a microwave-accelerated palladium-catalyzed desulfitation reaction. By using PdCl2 as a catalyst, silver acetate as an oxidant, and H2 SO4 as an additive, arylsulfinic acids with both electron-donating and electron-withdrawing groups underwent desulfitative coupling with an array ...
Barman Barun Kumar - - 2013
We report a new protocol for the synthesis of M@rGO (M = Au, Pt, Pd, Ag and rGO = reduced graphene oxide) hybrid nanostructures at room temperature in Zn-acid medium. The roles of Zn-acid are to reduce the GO by generated hydrogen and the deposition of metal nanoparticles on rGO ...
Leber Christopher - - 2013
Carbon feedstocks from fossilized sources are being rapidly depleted due to rising demand for industrial and commercial applications. Many petroleum-derived chemicals can be directly or functionally substituted with chemicals derived from renewable feedstocks. Several short chain organic acids may fulfill this role using their functional groups as a target for ...
Zhang Lihong - - 2013
Sulfur and iron co-doped titanoniobate nanosheets were prepared and evaluated in alcoholysis of styrene epoxide. The resultant co-doped catalyst exhibited excellent catalytic performance (yield of 99% with methanol as the nucleophile in only 1 h at room temperature) and may act as a promising candidate in many acid-catalyzed reactions.
Ma Weiguang - - 2013
A novel photoelectrochemical sensor has been designed with polyaniline-reduced graphene oxide-titanium dioxide, which was further applied to sense gallic acid and exhibited extraordinary rapid response, high sensitivity and excellent anti-inference. Meanwhile, the mechanism has been elaborately explored.
Bernard C - - 2013
The World Health Organization has advised that light-emitting diode (LED) fluorescent microscopes replace mercury vapor lamp (MVL) fluorescent microscopes for detection of acid-fast bacilli (AFB) stained with auramine (1).…
Violante Sara - - 2013
Fatty acid β-oxidation may occur in both mitochondria and peroxisomes. While peroxisomes oxidize specific carboxylic acids such as very long-chain fatty acids, branched-chain fatty acids, bile acids, and fatty dicarboxylic acids, mitochondria oxidize long-, medium-, and short-chain fatty acids. Oxidation of long-chain substrates requires the carnitine shuttle for mitochondrial access ...
Lu Liang-Qiu - - 2013
Two irons for a smoother finish: An NAD(P)H model was regenerated readily in situ by iron-catalyzed reduction with molecular hydrogen. The subsequent biomimetic reduction of α-keto-/ α-iminoesters proceeded smoothly in the presence of an iron-based Lewis acid (LA) to provide α-hydroxyesters and amino acid esters in good to excellent yields ...
He Wan-Ling - - 2013
Abstract Genotypic variation of iron bioavailability and the relationship between iron bioavailability and nutrient composition in polished rice among 11 rice genotypes were assessed using an in vitro digestion/Caco-2 cell model. The results indicated that significant differences in iron bioavailability were detected among tested rice genotypes, with a 3-fold range, ...
Tan Jiajing - - 2013
Silyl superpowers: The supersilyl group was investigated as a superior carboxylic acid protecting group. Supersilyl esters were also utilized as stable carboxylic acid synthetic equivalents in highly stereoselective aldol and Mannich reactions. The value of this method lies in easy photodeprotection and in the rapid synthesis of polyketide subunits.
Wu Zhe - - 2013
In the biotechnological process, insufficient cofactor NADH and multiple by-products restrain the final titer of 1,3-propanediol (1,3-PD). In this study, 1,3-PD production was improved by engineering the 2,3-butanediol (2,3-BD) and formic acid pathways in integrative recombinant Klebsiella pneumoniae. The formation of 2,3-BD is catalysed by acetoin reductase (AR). An inactivation ...
Xu Yongqian - - 2013
The first "off-on" and ratiometric fluorescent method based on ICT mechanism for picric acid (PA) recognition in the near infrared region was constructed. Key advantages of the unique molecular architecture can fulfil the ratiometric response to electron-deficient featured PA which inclines to quench fluorescence of all reported sensors for PA.
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