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fumaric acid

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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
#1
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
#2
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
#3
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
https://www.readbyqxmd.com/read/28602832/fumarate-decreases-edema-volume-and-improves-functional-outcome-after-experimental-stroke
#4
Bettina Hjelm Clausen, Louise Lundberg, Minna Yli-Karjanmaa, Nellie Anne Martin, Martina Svensson, Maria Zeiler Alfsen, Simon Bertram Flæng, Kristina Lyngsø, Antonio Boza-Serrano, Helle H Nielsen, Pernille B Hansen, Bente Finsen, Tomas Deierborg, Zsolt Illes, Kate Lykke Lambertsen
BACKGROUND: Oxidative stress and inflammation exacerbate tissue damage in the brain after ischemic stroke. Dimethyl-fumarate (DMF) and its metabolite monomethyl-fumarate (MMF) are known to stimulate anti-oxidant pathways and modulate inflammatory responses. Considering these dual effects of fumarates, we examined the effect of MMF treatment after ischemic stroke in mice. METHODS: Permanent middle cerebral artery occlusion (pMCAO) was performed using adult, male C57BL/6 mice...
June 8, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28589165/effects-of-fumarates-on-inflammatory-human-astrocyte-responses-and-oligodendrocyte-differentiation
#5
Dylan A Galloway, John B Williams, Craig S Moore
OBJECTIVE: Dimethyl fumarate (DMF) is a fumaric acid ester approved for the treatment of relapsing-remitting multiple sclerosis (RRMS). In both the brain and periphery, DMF and its metabolite monomethyl fumarate (MMF) exert anti-inflammatory and antioxidant effects. Our aim was to compare the effects of DMF and MMF on inflammatory and antioxidant pathways within astrocytes, a critical supporting glial cell in the central nervous system (CNS). Direct effects of fumarates on neural progenitor cell (NPC) differentiation toward the oligodendrocyte lineage were also assessed...
June 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28580992/phosphine-functionalized-nhc-ni-ii-and-ni-0-complexes-synthesis-characterization-and-catalytic-properties
#6
S G Rull, R J Rama, E Álvarez, M R Fructos, T R Belderrain, M C Nicasio
Two families of nickel complexes bearing chelating diphenylphosphine-functionalized NHC ligands [Ni(II)(ArNHCPPh2)(allyl)]Cl 1a (Ar = Mes); 1b, (Ar = 2,6-iPr2-C6H3) and [Ni(0)(ArNHCPPh2)(alkene)] 2a (Ar = 2,6-iPr2-C6H3, alkene = styrene); 2b (Ar = 2,6-iPr2-C6H3, alkene = diethyl fumarate) have been prepared and fully characterized. VT-NMR experiments in solution reveal that the allyl derivatives 1a-b are stereochemically nonrigid. The solid-state structure of the Ni(0) derivative 2b is also reported. These complexes display interesting catalytic properties in various cross-coupling reactions...
June 13, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28580646/secukinumab-is-superior-to-fumaric-acid-esters-in-treating-subjects-with-moderate-to-severe-plaque-psoriasis-who-are-na%C3%A3-ve-to-systemic-treatments-results-from-the-randomized-controlled-prime-trial
#7
M Sticherling, U Mrowietz, M Augustin, D Thaçi, N Melzer, C Hentschke, J Kneidl, C Sieder, K Reich
BACKGROUND: Secukinumab is a fully human antibody that neutralizes IL-17A and has significant efficacy and a favorable safety profile in moderate to severe plaque psoriasis and psoriatic arthritis. METHODS: In this 24-week, randomized, open-label, multicenter study with blinded assessment, subjects with moderate to severe plaque psoriasis, naïve to systemic treatments, were randomized to receive secukinumab 300 mg subcutaneously or oral fumaric acid esters (FAE)...
June 5, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28578848/study-on-pharmacokinetics-and-bioequivalence-of-vonoprazan-pyroglutamate-in-rats-by-liquid-chromatography-with-tandem-mass-spectrometry
#8
Yuan Qiao, Jun Zhao, Xuanfeng Yue, Yang Zhang, Ruitao Zhang, Yuan Xu, Xiuling Tang, Xueying Liu, Qingwei Wang
Vonoprazan Fumarate (TAK-438F) is a new and effective drug approved in Japan in 2014 for treatment and prevention of acid-related diseases (ARDs), which exhibits many advantages compared with traditional proton-pump inhibitors (PPIs). However, the clinical applications of TAK0-438F suffers limitation due to the lack of injection dosage form. Efforts to overcome this limitation lead to the systhesis of Vonoprazan pyroglutamate (TAK-438P) for its high water solubility and more potent antisecretory effect. This was the first report to establish and validate a reliable and sensitive LC-MS/MS method for the quantification of TAK-438P in rat plasma and tissues (heart, liver, spleen, liver, kidney, rain, stomach and small intestine)...
August 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28574825/dimethyl-fumarate-reduces-the-risk-of-mycotoxins-via-improving-intestinal-barrier-and-microbiota
#9
Ning Ma, Yi Wu, Fei Xie, Kexin Du, Yuan Wang, Linxin Shi, Linbao Ji, Tianyi Liu, Xi Ma
The effects of dimethyl fumarate (DMF) on mycotoxins and animal growth performance are well documented. However, its mechanism of anti-mildew effects is still unknown. The current study investigated how DMF detoxified the mycotoxin and improved the growth performance using BALB/c mice model, especially its effects on intestinal barrier function and gut micro-ecology. Our study also compared with the ultraviolet radiation (UR) treatment, a traditional anti-mildew control (TC). The results indicated that the DMF treatment had a lower contents of mycotoxin, better growth performance and improved mucosal morphology (P < 0...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28557008/influence-of-tnf-alpha-inhibitors-and-fumaric-acid-esters-on-male-fertility-in-psoriasis-patients
#10
F Heppt, A Colsman, A Maronna, U Uslu, M V Heppt, F Kiesewetter, M Sticherling
OBJECTIVE: Is there any influence of a therapy with TNF alpha inhibitors or fumaric acid esters and of disease activity status on male fertility and sperm quality in psoriasis patients?. METHODS: In this monocentric, open-label, prospective study, semen samples were collected from patients receiving either TNF alpha inhibitors or fumaric acid esters for moderate to severe plaque psoriasis. Semen was analysed at baseline before onset of the systemic therapy and monitored every three months under therapy...
May 30, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28543042/the-ntcp-inhibitor-myrcludex-b-effects-on-bile-acid-disposition-and-tenofovir-pharmacokinetics
#11
A Blank, A Eidam, M Haag, N Hohmann, J Burhenne, M Schwab, Sfj van de Graaf, M R Meyer, H H Maurer, K Meier, J Weiss, T Bruckner, A Alexandrov, S Urban, G Mikus, W E Haefeli
Myrcludex B acts as a hepatitis B and D virus entry inhibitor blocking the sodium taurocholate cotransporting polypeptide (SLC10A1). We investigated the effects of myrcludex B on plasma bile acid disposition, tenofovir pharmacokinetics, and perpetrator characteristics on cytochrome P450 (CYP) 3A. Twelve healthy volunteers received 300 mg tenofovir disoproxil fumarate orally and 10 mg subcutaneous myrcludex B. Myrcludex B increased total plasma bile acid exposure 19.2-fold without signs of cholestasis. The rise in conjugated bile acids was up to 124-fold (taurocholic acid)...
May 24, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28538198/protein-and-metabolic-engineering-for-the-production-of-organic-acids
#12
Jingjing Liu, Jianghua Li, Hyun-Dong Shin, Long Liu, Guocheng Du, Jian Chen
Organic acids are natural metabolites of living organisms. They have been widely applied in the food, pharmaceutical, and bio-based materials industries. In recent years, biotechnological routes to organic acids production from renewable raw materials have been regarded as very promising approaches. In this review, we provide an overview of current developments in the production of organic acids using protein and metabolic engineering strategies. The organic acids include propionic acid, pyruvate, itaconic acid, succinic acid, fumaric acid, malic acid and citric acid...
September 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28538181/malate-and-aspartate-increase-l-arginine-and-nitric-oxide-and-attenuate-hypertension
#13
Entai Hou, Na Sun, Fuchang Zhang, Chenyang Zhao, Kristie Usa, Mingyu Liang, Zhongmin Tian
Fumarase catalyzes the interconversion of fumarate and L-malate in the tricarboxylic acid cycle. The Dahl salt-sensitive (SS) rat, a model of salt-sensitive hypertension, exhibits fumarase insufficiencies. To investigate the mechanism mediating the effect of fumarase-related metabolites on hypertension, we considered the pathway in which L-malate can be converted to oxaloacetate, aspartate, argininosuccinate, and L-arginine, the substrate of nitric oxide (NO) synthase. The levels of aspartate, citrulline, L-arginine, and NO were significantly decreased in the kidneys of SS rats compared to salt-insensitive consomic SS...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28536921/progressive-multifocal-leukoencephalopathy-in-patients-treated-with-fumaric-acid-esters-a-review-of-19-cases
#14
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
Progressive multifocal leukoencephalopathy (PML) is a rare and potentially fatal condition caused by a brain infection with JC polyomavirus (JCV). PML develops almost exclusively in immunocompromised patients and has recently been associated with use of fumaric acid esters (FAEs), or fumarates. We reviewed the literature and the Dutch and European pharmacovigilance databases in order to identify all available FAE-associated PML cases and distinguish possible common features among these patients. A total of 19 PML cases associated with FAE use were identified...
June 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28535757/intracellular-product-recycling-in-high-succinic-acid-producing-yeast-at-low-ph
#15
S Aljoscha Wahl, Cristina Bernal Martinez, Zheng Zhao, Walter M van Gulik, Mickel L A Jansen
BACKGROUND: The metabolic engineering of Saccharomyces cerevisiae for the production of succinic acid has progressed dramatically, and a series of high-producing hosts are available. At low cultivation pH and high titers, the product transport can become bidirectional, i.e. the acid is reentering the cell and is again exported or even catabolized. Here, a quantitative approach for the identification of product recycling fluxes is developed. RESULTS: The metabolic flux distributions at two time-points of the fermentation process were analyzed...
May 23, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28532060/design-and-characterization-of-biodegradable-macroporous-hybrid-inorganic-organic-polymer-for-orthopedic-applications
#16
Sunita PremVictor, Jibin Kunnumpurathu, M G Gayathri Devi, K Remya, Vineeth M Vijayan, Jayabalan Muthu
We have engineered hybrid polymer products based on a hybrid inorganic-organic comacromer consisting of hydroxyapatite (HA), carboxyl terminated polypropylene fumarate (CTPPF), PEG300 and ascorbic acid (AA) as a bone graft material. The integration and the spatial distribution of HA in the polymer backbone were facilitated by silanisation and 1-ethyl-3-(-3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) coupling technique. These comacromers and crosslinked polymer products were characterized by Fourier transform infrared spectroscopy (FTIR), Nuclear magnetic resonance (NMR), Scanning electron microscopy (SEM) and Raman mapping techniques...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28530207/fabrication-of-biomimetic-bone-grafts-with-multi-material-3d-printing
#17
Nicholas Sears, Prachi Dhavalikar, Michael Whitely, Elizabeth Cosgriff-Hernandez
Extrusion deposition is a versatile method for the 3D printing of biomaterials such as hydrogels, ceramics, and suspensions. Recently, a new class of emulsion inks were developed that can be used to create tunable, hierarchically porous materials with a cure-on-dispense method. Propylene fumarate dimethacrylate (PFDMA) was selected to fabricate bone grafts using this technology due to its established biocompatibility, osteoconductivity, and good compressive properties. Scaffolds fabricated from PFDMA emulsion inks displayed compressive modulus and yield strength of approximately 15 and 1 MPa, respectively...
May 22, 2017: Biofabrication
https://www.readbyqxmd.com/read/28520815/metabolic-profiling-by-gas-chromatography-mass-spectrometry-of-energy-metabolism-in-high-fat-diet-fed-obese-mice
#18
Daxesh P Patel, Kristopher W Krausz, Cen Xie, Diren Beyoğlu, Frank J Gonzalez, Jeffrey R Idle
A novel, selective and sensitive single-ion monitoring (SIM) gas chromatography-mass spectrometry (GCMS) method was developed and validated for the determination of energy metabolites related to glycolysis, the tricarboxylic acid (TCA) cycle, glutaminolysis, and fatty acid β-oxidation. This assay used N-tert-butyldimethylsilyl-N-methyltrifluoroacetamide (MTBSTFA) containing 1% tert-butyldimethylchlorosilane (TBDMCS) as derivatizing reagent and was highly reproducible, sensitive, specific and robust. The assay was used to analyze liver tissue and serum from C57BL/6N obese mice fed a high-fat diet (HFD) and C57BL/6N mice fed normal chow for 8 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28512002/cell-surface-g-protein-coupled-receptors-for-tumor-associated-metabolites-a-direct-link-to-mitochondrial-dysfunction-in-cancer
#19
REVIEW
Bojana Ristic, Yangzom D Bhutia, Vadivel Ganapathy
Mitochondria are the sites of pyruvate oxidation, citric acid cycle, oxidative phosphorylation, ketogenesis, and fatty acid oxidation. Attenuation of mitochondrial function is one of the most significant changes that occurs in tumor cells, directly linked to oncogenesis, angiogenesis, Warburg effect, and epigenetics. In particular, three mitochondrial enzymes are inactivated in cancer: pyruvate dehydrogenase (PDH), succinate dehydrogenase (SDH), and 3-hydroxy-3-methylglutaryl CoA synthase-2 (HMGCS2). These enzymes are subject to regulation via acetylation/deacetylation...
May 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28510485/metabolomic-response-to-huanglongbing-role-of-carboxylic-compounds-in-citrus-sinensis-response-to-candidatus-liberibacter-asiaticus-and-its-vector-diaphorina-citri
#20
Nabil Killiny, Yasser Nehela
Huanglongbing, a destructive disease of citrus, is caused by the fastidious bacterium, Candidatus Liberibacter asiaticus (CLas), and transmitted by Asian citrus psyllid, Diaphorina citri. The impact of CLas-infection and/or D. citri-infestation on Valencia sweet orange (Citrus sinensis) leaf metabolites was investigated using GC-MS, followed by gene expression analysis for 37 genes involved in jasmonic acid (JA), salicylic acid (SA), and proline-glutamine pathways. The total amino acid abundance increased after CLas-infection, while the total fatty acids increased dramatically after infestation with D...
May 16, 2017: Molecular Plant-microbe Interactions: MPMI
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