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https://www.readbyqxmd.com/read/28719476/a-rare-case-of-contact-urticaria-and-allergic-contact-dermatitis-to-maleic-and-fumaric-acids
#1
Franziska Raessler, Sibylle Schliemann, Peter Elsner
No abstract text is available yet for this article.
July 2017: Dermatitis
https://www.readbyqxmd.com/read/28712602/anaplerotic-therapy-in-propionic-acidemia
#2
Nicola Longo, Leisa B Price, Eduard Gappmaier, Nancy L Cantor, Sharon L Ernst, Carrie Bailey, Marzia Pasquali
BACKGROUND: Propionic acidemia is a rare metabolic disorder caused by a deficiency of propionyl- CoA carboxylase, the enzyme converting propionyl-CoA to methylmalonyl-CoA that subsequently enters the citric acid cycle as succinyl-CoA. Patients with propionic acidemia cannot metabolize propionic acid, which combines with oxaloacetate to form methylcitric acid. This, with the defective supply of succinyl-CoA, may lead to a deficiency in citric acid cycle intermediates. PURPOSE: The objective of this study was to determine whether supplements with glutamine (400mg/kg per day), citrate (7...
July 12, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28711999/erratum-to-progressive-multifocal-leukoencephalopathy-in-patients-treated-with-fumaric-acid-esters-a-review-of-19-cases
#3
Robbert-Jan Gieselbach, Annemarie H Muller-Hansma, Martijn T Wijburg, Marjolein S de Bruin-Weller, Bob W van Oosten, Dennis J Nieuwkamp, Frank E Coenjaerts, Mike P Wattjes, Jean-Luc Murk
No abstract text is available yet for this article.
July 15, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28708072/iron-fortified-complementary-foods-containing-a-mixture-of-sodium-iron-edta-with-either-ferrous-fumarate-or-ferric-pyrophosphate-reduce-iron-deficiency-anemia-in-12-to-36-month-old-children-in-a-malaria-endemic-setting-a-secondary-analysis-of-a-cluster-randomized
#4
Dominik Glinz, Rita Wegmüller, Mamadou Ouattara, Victorine G Diakité, Grant J Aaron, Lorenz Hofer, Michael B Zimmermann, Lukas G Adiossan, Jürg Utzinger, Eliézer K N'Goran, Richard F Hurrell
Iron deficiency anemia (IDA) is a major public health problem in sub-Saharan Africa. The efficacy of iron fortification against IDA is uncertain in malaria-endemic settings. The objective of this study was to evaluate the efficacy of a complementary food (CF) fortified with sodium iron EDTA (NaFeEDTA) plus either ferrous fumarate (FeFum) or ferric pyrophosphate (FePP) to combat IDA in preschool-age children in a highly malaria endemic region. This is a secondary analysis of a nine-month cluster-randomized controlled trial conducted in south-central Côte d'Ivoire...
July 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28700220/mechanistic-characterization-of-escherichia-coli-l-aspartate-oxidase-from-kinetic-isotope-effects
#5
Carmen Chow, Subray S Hegde, John S Blanchard
L-Aspartate oxidase, encoded by the nadB gene, is the first enzyme in the de novo synthesis of NAD+ in bacteria. This FAD-dependent enzyme catalyzes the oxidation of L-aspartate to generate iminoaspartate and reduced flavin. Distinct from most amino acid oxidases, it can use either molecular oxygen or fumarate to reoxidize the reduced enzyme. Primary sSequence alignments and the three-dimensional crystal structure have revealed that the overall fold and catalytic residues of NadB closely resemble those of the succinate dehydrogenase/fumarate reductase family rather than the prototypical D-amino acid oxidases...
July 12, 2017: Biochemistry
https://www.readbyqxmd.com/read/28690628/comparison-of-salt-tolerance-in-soja-based-on-metabolomics-of-seedling-roots
#6
Mingxia Li, Rui Guo, Yang Jiao, Xiaofei Jin, Haiyan Zhang, Lianxuan Shi
Soybean is an important economic crop that is continually threatened by abiotic stresses, especially salt stress. Wild soybean is an important germplasm resource for the breeding of cultivated soybean. The root system plays a very important role in plant salt tolerance. To explore the salt tolerance-related mechanisms among Soja, we have demonstrated the seedling roots' growth and metabolomics in wild soybean, semi-wild soybean, and cultivated soybean under two types of salt stress by using gas chromatography-mass spectrometry...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28674067/genome-scale-mutational-analysis-of-geobacter-sulfurreducens-reveals-distinct-molecular-mechanisms-for-respiration-and-sensing-of-poised-electrodes-vs-fe-iii-oxides
#7
Chi Ho Chan, Caleb E Levar, Fernanda Jiménez-Otero, Daniel R Bond
Geobacter sulfurreducens generates electrical current by coupling intracellular oxidation of organic acids to reduction of proteins on the cell surface that are able to interface with electrodes. This ability is attributed to the bacterium's capacity to respire other extracellular electron acceptors that require contact, such as insoluble metal oxides. To directly investigate the genetic basis of electrode-based respiration, we constructed Geobacter sulfurreducens transposon-insertion sequencing (Tn-Seq) libraries for growth with soluble fumarate or an electrode as the electron acceptor...
July 3, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28667200/quality-of-life-treatment-satisfaction-and-efficacy-of-non-biological-systemic-therapies-in-patients-with-plaque-psoriasis-study-protocol-for-a-prospective-observational-study
#8
Christine Fink, Timo E Schank, Nina Trenkler, Lorenz Uhlmann, Knut Schäkel
INTRODUCTION: Psoriasis vulgaris often leads to a significant impaired quality of life and dissatisfaction with the existing therapeutic approaches. However, patients' quality of life and treatment satisfaction are of utmost importance, since it is positively related to therapy adherence and encourages patient's compliance. The study described herein evaluates the quality of life, treatment satisfaction and efficacy during the initial 6 months of treatment with a non-biological systemic agent in a real-life clinical setting...
June 30, 2017: BMJ Open
https://www.readbyqxmd.com/read/28667082/new-hif2a-inhibitors-implications-for-pheochromocytomas-and-paragangliomas
#9
Rodrigo Almeida Toledo
Two recent independent studies published in Nature show robust responses of clear cell renal cell carcinoma (ccRCC) cell lines, preclinical ccRCC xenograft models and, remarkably, a patient with progressive ccRCC despite receiving multiple lines of treatment, to the long-awaited, recently developed inhibitors of hypoxia-inducible factor 2-alpha (HIF2α). This Commentary is based on the recognition of similar molecular drivers in ccRCC and the endocrine neoplasias pheochromocytomas and paragangliomas (PPGLs), ultimately leading to stabilization of HIFs...
June 30, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28662421/preparation-of-hydrolytic-liquid-from-dried-distiller-s-grains-with-solubles-and-fumaric-acid-fermentation-by-rhizopus-arrhizus-rh-7-13
#10
Huan Liu, Xuemin Yue, Yuhan Jin, Meng Wang, Li Deng, Fang Wang, Tianwei Tan
Fumaric acid production from lignocellulosic materials is an alternative chemicals production system. This work investigated the suitable conditions for hydrolysis of dried distiller's grains with solubles (DDGS). The hydrolytic liquid was subsequently used for the production of fumaric acid. After optimizing the hydrolysis conditions, the most suitable concentration of H2SO4 (2%), hydrolysis temperature (120 °C), hydrolysis time (100min) and solid/liquid ratio (1:10) were obtained. The yield of monosaccharides reached 258 mg/g DDGS and 15...
June 26, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28657473/vonoprazan-fumarate-for-the-management-of-acid-related-diseases
#11
Irene Martinucci, Corrado Blandizzi, Giorgia Bodini, Elisa Marabotto, Vincenzo Savarino, Santino Marchi, Nicola de Bortoli, Edoardo Savarino
Proton pump inhibitors (PPIs) display a number of limitations and unmet clinical needs that have prompted the development of novel drugs to improve the outcomes of acid-related diseases, including the eradication of H. pylori. In this context, a new synthesized potassium-competitive acid blocker (P-CAB), vonoprazan, showed higher suppression of gastric acid secretion. Areas covered: This review discusses the current knowledge regarding the efficacy of vonoprazan in the treatment of acid-related diseases, with a particular focus on its use in Helicobacter pylori eradication...
August 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28655216/phenotypic-and-genomic-survey-on-organic-acid-utilization-profile-of-pseudomonas-mendocina-strain-s5-2-a-vineyard-soil-isolate
#12
Teik Min Chong, Jian-Woon Chen, Wah-Seng See-Too, Choo-Yee Yu, Geik-Yong Ang, Yan Lue Lim, Wai-Fong Yin, Catherine Grandclément, Denis Faure, Yves Dessaux, Kok-Gan Chan
Root exudates are chemical compounds that are released from living plant roots and provide significant energy, carbon, nitrogen and phosphorus sources for microbes inhabiting the rhizosphere. The exudates shape the microflora associated with the plant, as well as influences the plant health and productivity. Therefore, a better understanding of the trophic link that is established between the plant and the associated bacteria is necessary. In this study, a comprehensive survey on the utilization of grapevine and rootstock related organic acids were conducted on a vineyard soil isolate which is Pseudomonas mendocina strain S5...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28653931/impact-of-different-organic-acids-on-solubility-enhancement-of-cefpodxime-proxetil-immediate-release-tablet-and-its-stability-studies
#13
Sabahat Jabeen, Fouzia Hassan, Rabia Ismail Yousuf, Muhammad Harris Shoaib, Fozia Israr, S M Farid Hasan, Rehana Saeed, Sadaf Farooqi
Cefpodoxime proxetil is a third generation cephalosporin antibiotic demonstrates pH dependent solubility and is highly soluble only in acidic pH. The purpose of this investigation was to design and develop immediate release tablets of cefpodoxime proxetil by direct compression method and determine the effect of different solid buffers (organic acids) such as fumaric acid (formulations F1-F4), maleic acid (formulations M1-M4) and citric acid (formulations C1-C4) by using cefpodoxime and acid in the ratios of 4:1, 2:1, 1:1 and 1:2 to achieve pH-independent release of the drug...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28652003/comprehensive-two-dimensional-gas-chromatography-mass-spectrometry-of-complex-mixtures-of-anaerobic-bacterial-metabolites-of-petroleum-hydrocarbons
#14
C M Aitken, I M Head, D M Jones, S J Rowland, A G Scarlett, C E West
Anaerobic biotransformation of petroleum hydrocarbons is an important alteration mechanism, both subsurface in geological reservoirs, in aquifers and in anoxic deep sea environments. Here we report the resolution and identification, by comprehensive two-dimensional gas chromatography-mass spectrometry (GC×GC-MS), of complex mixtures of aromatic acid and diacid metabolites of the anaerobic biodegradation of many crude oil hydrocarbons. An extended range of metabolites, including alkylbenzyl, alkylindanyl, alkyltetralinyl, alkylnaphthyl succinic acids and alkyltetralin, alkylnaphthoic and phenanthrene carboxylic acids, is reported in samples from experiments conducted under sulfate-reducing conditions in a microcosm over two years...
June 13, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28648298/slightly-acidic-electrolyzed-water-combined-with-chemical-and-physical-treatments-to-decontaminate-bacteria-on-fresh-fruits
#15
Charles Nkufi Tango, Imran Khan, Paul-François Ngnitcho Kounkeu, Rubab Momna, Mohammad Shakhawat Hussain, Deog-Hwan Oh
Effect of sequential combination of slightly acidic electrolyzed water (SAEW) with chemical and physical treatments on bacterial decontamination on fruits was investigated in this study. Effect of treatments on microbial and sensory quality was also analyzed after subsequent storage at 4 °C and room temperature (RT, 23 ± 0.15 °C). Whole apple and tomato fruits were inoculated with cocktail strains of Escherichia coli O157:H7 and Listeria monocytogenes. Uninoculated and inoculated fruits were washed first with distilled water (DW), calcium oxide (CaO), fumaric acid (FA), and SAEW at RT for 3 min...
October 2017: Food Microbiology
https://www.readbyqxmd.com/read/28644842/investigation-of-discriminant-metabolites-in-tamoxifen-resistant-and-choline-kinase-alpha-downregulated-breast-cancer-cells-using-1h-nuclear-magnetic-resonance-spectroscopy
#16
Hoe Suk Kim, Lianji Tian, Hyeonjin Kim, Woo Kyung Moon
Metabolites linked to changes in choline kinase-α (CK-α) expression and drug resistance, which contribute to survival and autophagy mechanisms, are attractive targets for breast cancer therapies. We previously reported that autophagy played a causative role in driving tamoxifen (TAM) resistance of breast cancer cells (BCCs) and was also promoted by CK-α knockdown, resulting in the survival of TAM-resistant BCCs. There is no comparative study yet about the metabolites resulting from BCCs with TAM-resistance and CK-α knockdown...
2017: PloS One
https://www.readbyqxmd.com/read/28638661/efficacy-and-tolerability-of-tenofovir-disoproxil-fumarate-based-regimen-as-compared-to-zidovudine-based-regimens-a-systematic-review-and-meta-analysis
#17
REVIEW
Tegene Legese Dadi, Adane Teshome Kefale, Teshale Ayele Mega, Muktar Sano Kedir, Habtamu Acho Addo, Tessema Tsehay Biru
BACKGROUND: Although tenofovir (TDF)/emtricitabine (FTC)/efavirenz (EFV) and zidovudine (ZDV)/lamivudine (3TC)/efavirenz (EFV) are used as preferred first line regimen, their head-to-head comparison in terms of their efficacy and tolerability was limited. This review aimed to synthesize the best available evidence on the comparative efficacy and tolerability of the two regimens. METHODS: Seven sites and databases in addition to Google search until August 20, 2016, were searched...
2017: AIDS Research and Treatment
https://www.readbyqxmd.com/read/28622795/desulfamplus-magnetovallimortis-gen-nov-sp-nov-a-magnetotactic-bacterium-from-a-brackish-desert-spring-able-to-biomineralize-greigite-and-magnetite-that-represents-a-novel-lineage-in-the-desulfobacteraceae
#18
Elodie C T Descamps, Caroline L Monteil, Nicolas Menguy, Nicolas Ginet, David Pignol, Dennis A Bazylinski, Christopher T Lefèvre
A magnetotactic bacterium, designated strain BW-1(T), was isolated from a brackish spring in Death Valley National Park (California, USA) and cultivated in axenic culture. The Gram-negative cells of strain BW-1(T) are relatively large and rod-shaped and possess a single polar flagellum (monotrichous). This strain is the first magnetotactic bacterium isolated in axenic culture capable of producing greigite and/or magnetite nanocrystals aligned in one or more chains per cell. Strain BW-1(T) is an obligate anaerobe that grows chemoorganoheterotrophically while reducing sulfate as a terminal electron acceptor...
May 31, 2017: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/28612342/effect-of-glycine-nitrogen-on-lettuce-growth-under-soilless-culture-a-metabolomics-approach-to-identify-the-main-changes-occurred-in-plant-primary-and-secondary-metabolism
#19
Xiao Yang, Lei Feng, Li Zhao, Xiaosong Liu, Danial Hassani, Danfeng Huang
BACKGROUND: Lettuce is a significant source of antioxidants and bioactive compounds. Nitrate is a cardinal fertilizer in horticulture and influences vegetable yield and quality; however, the negative effects of nitrate on the biosynthesis of flavonoids require further study. It is expected that using fertilizers containing organic N could promote the synthesis of health-promoting compounds. RESULTS: Lettuces were hydroponically cultured in media containing 9 mM nitrate or 9 mM glycine for 4 weeks...
June 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28605686/solid-state-cocrystal-formation-between-acyclovir-and-fumaric-acid-terahertz-and-raman-vibrational-spectroscopic-studies
#20
Qiang Cai, Jiadan Xue, Qiqi Wang, Yong Du
The vibrational spectra of solid-state acyclovir, fumaric acid and their cocrystal have been investigated by using terahertz time-domain spectroscopy (THz-TDS) and Raman spectroscopy at room temperature. In experimental THz spectra, the cocrystal has absorption peaks in 0.65, 0.94 and 1.10THz respectively, while the raw materials are absolutely different in this region. Raman spectra also show similar results about differences between the cocrystal and raw materials. Density functional theory (DFT) was performed to simulate vibrational modes of different theoretical forms between acyclovir and fumaric acid...
June 9, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
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