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Showing 1-30 of 41 results for "343803" within Papers
Joonki Kim et al.
Journal of agricultural and food chemistry, 63(31), 6979-6988 (2015-07-29)
We found that an extract of Lycoris chejuensis and its three isolated active components, narciclasine, 7-deoxynarciclasine, and 7-deoxy-trans-dihydronarciclasine, each significantly reduced the formation of amyloid-β peptides in HeLa cells transfected with an amyloid precursor protein carrying the Swedish mutation up
Yueqiu Liu et al.
Journal of ethnopharmacology, 155(2), 1276-1283 (2014-07-22)
Bacterial infection is one of the main secondary infections caused by snakebite. The 88 plant species investigated in this study have been used as folk remedies for treatment of snakebite, and it is therefore the aim of this study to
Silke S Heinzmann et al.
Journal of proteome research, 14(5), 2267-2277 (2015-03-20)
Despite the gut's longitudinal specialization for digestion and microbiome organization, most studies focus on the analysis of its end product, feces. To determine the metabolic and physiological functions of different sections of the gut, we aimed to define a comprehensive
Nicholas Fowler et al.
Toxicon : official journal of the International Society on Toxinology, 101, 85-91 (2015-05-20)
One of the most widely studied organisms responsible for Harmful Algal Blooms (HABs) is the marine dinoflagellate Karenia brevis. This organism produces neurotoxic compounds known as brevetoxins. A related dinoflagellate, Karenia papilionacea, has been reported to occasionally co-bloom with K.
Akiko Takagaki et al.
Biological & pharmaceutical bulletin, 38(2), 325-330 (2015-03-10)
Four isoflavone-metabolizing bacteria were tested for their abilities to degrade (-)-epigallocatechin (EGC) and its isomer (-)-gallocatechin (GC). Biotransformation of both EGC and GC was observed with Adlercreutzia equolifaciens JCM 14793, Asaccharobacter celatus JCM 14811, and Slackia equolifaciens JCM 16059, but
Shufang Wang et al.
Journal of pharmaceutical and biomedical analysis, 117, 255-265 (2015-09-24)
There have been increasing works on identification of the chemical constituents in traditional Chinese medicines (TCMs) by liquid chromatography-mass spectrometry (LC-MS). However, isomers cannot be distinguished generally only by MS data, and the structures of unknown compounds cannot be confirmed.
Ana Margarida Araújo et al.
Archives of toxicology, 89(5), 757-771 (2014-06-07)
The world's status quo on recreational drugs has dramatically changed in recent years due to the rapid emergence of new psychoactive substances (NPS), represented by new narcotic or psychotropic drugs, in pure form or in preparation, which are not controlled
Toshikazu Yamaoka et al.
Journal of pharmacological and toxicological methods, 76, 83-95 (2015-09-01)
Glutathione (GSH) trapping assays are widely used to predict the post-marketing risk for idiosyncratic drug reactions (IDRs) in the pharmaceutical industry. Although several GSH derivatives have been introduced as trapping reagents for reactive intermediates, more sensitive and selective reagents are
Yunpeng Bai et al.
Journal of agricultural and food chemistry, 62(47), 11536-11546 (2014-11-06)
This study determined the fate of deoxyanthocyanidins in sorghum sourdoughs. Sourdoughs prepared from the red sorghum variety Town were fermented with the caffeic acid-decarboxylating strains Lactobacillus plantarum FUA3171 and the decarboxylase negative L. casei FUA3166. Deoxyanthocyanidins were analyzed by liquid
Alexis Lavaud et al.
Phytochemistry, 109, 103-110 (2014-12-04)
Ten tocotrienol derivatives, i.e., amplexichromanols (1-10), were isolated from stem bark of Garcinia amplexicaulis Vieill. ex Pierre collected in Caledonia. The structures of the compounds 1-5 were determined to be chromanol derivatives substituted by a polyprenyl chain oxidized in terminal
Iwona Kowalska et al.
Journal of agricultural and food chemistry, 62(46), 11200-11208 (2014-10-31)
Fourteen phenolic compounds (flavonoids and phenolic acids) were isolated and 19 were identified in the aerial parts of Triticum aestivum L. The structures of these compounds were established on the basis of the data obtained by electrospray ionization-mass spectrometry (ESI-MS)
Naoyuki Nakada et al.
Xenobiotica; the fate of foreign compounds in biological systems, 45(9), 757-765 (2015-04-15)
1. Here, we elucidated the structure of metabolites of novel oral Janus kinase inhibitor ASP015K in rats and humans and evaluated the predictability of human metabolites using chimeric mice with humanized liver (PXB mice). 2. Rat biological samples collected after oral dosing
Akiko Takagaki et al.
Archives of microbiology, 196(10), 681-695 (2014-06-21)
Two intestinal bacterial strains MT4s-5 and MT42 involved in the degradation of (-)-epigallocatechin (EGC) were isolated from rat feces. Strain MT4s-5 was tentatively identified as Adlercreutzia equolifaciens. This strain converted EGC into not only 1-(3, 4, 5-trihydroxyphenyl)-3-(2, 4, 6-trihydroxyphenyl)propan-2-ol (1)
Wenguang Wang et al.
Journal of chromatography. A, 1412, 100-111 (2015-08-25)
In order to solve the bottleneck of reference standards shortage for comprehensive quality control of traditional Chinese medicines (TCMs), a series of strategies, including one single reference standard to determine multi-compounds (SSDMC), quantitative analysis by standardized reference extract (QASRE), and
Zeyun Li et al.
Fitoterapia, 100, 187-194 (2014-12-17)
This paper utilized a quantitative (1)H nuclear magnetic resonance (qHNMR) method for assessing the purity of iridoids and secoiridoids. The method was fully validated, including specificity, linearity, accuracy, precision, reproducibility, and robustness. For optimization of experimental conditions, several experimental parameters
Ramesh Prasad Pandey et al.
Applied and environmental microbiology, 80(23), 7235-7243 (2014-09-23)
A UDP glucosyltransferase from Bacillus licheniformis was overexpressed, purified, and incubated with nucleotide diphosphate (NDP) d- and l-sugars to produce glucose, galactose, 2-deoxyglucose, viosamine, rhamnose, and fucose sugar-conjugated resveratrol glycosides. Significantly higher (90%) bioconversion of resveratrol was achieved with α-d-glucose
Seong-Hoon Kim et al.
The Journal of pharmacology and experimental therapeutics, 352(1), 175-184 (2014-11-06)
To date, many anticancer drugs have been developed by directly or indirectly targeting microtubules, which are involved in cell division. Although this approach has yielded many anticancer drugs, these drugs produce undesirable side effects. An alternative strategy is needed, and
Antithrombotic Phenolics from the Stems of Parthenocissus tricuspidata Possess Anti-inflammatory Effect.
Nguyen PH, et al.
Bull. Korean Chem. Soc., 35(6), 1763-1763 (2014)
Ram Jee Sharma et al.
Natural product communications, 10(6), 969-976 (2015-07-23)
Eugenia jambolana, commonly known as 'jamun' or Indian blackberry, is an important source of bioactive compounds. All parts of the plant like stem bark, leaves, flower, fruit pulp and seeds are traditionally used for many diseases. Metabolite profiling in medicinally
William L Scott et al.
Journal of combinatorial chemistry, 11(1), 34-43 (2008-12-25)
For the successful implementation of Distributed Drug Discovery (D(3)) (outlined in the accompanying Perspective), students, in the course of their educational laboratories, must be able to reproducibly make new, high quality, molecules with potential for biological activity. This article reports
Shi Shen et al.
Journal of pharmaceutical and biomedical analysis, 114, 190-199 (2015-06-13)
This study investigated the accuracy of the quantitative NMR method for purity determination of ACE inhibitors reference standards and the discovery of two pairs of new diastereoisomers. Six types of ACE inhibitors, imidapril hydrochloride, benazepril hydrochloride, lisinopril, enalapril maleate, quinapril
Zheng Pan et al.
Phytochemical analysis : PCA, 26(4), 247-252 (2015-02-20)
Lamiophlomis rotata (Duyiwei) is a folk herbal medicine that traditionally has been used in China as a hemostatic agent. Raw plant materials used for medicinal products from different geographical regions are often inconsistent in chemical composition. Metabolic fingerprinting provides a
Athina Dimopoulou et al.
Nucleosides, nucleotides & nucleic acids, 34(4), 289-308 (2015-03-17)
We report the synthesis of novel thiopurine pyranonucleosides. Direct coupling of silylated 6-mercaptopurine and 6-thioguanine with the appropriate pyranoses 1a-e via Vorbrüggen nucleosidation, gave the N-9 linked mercaptopurine 2a-e and thioguanine 4a-e nucleosides, while their N-7 substituted congeners 10a-e and
Jan Vicente et al.
Marine drugs, 13(8), 4682-4700 (2015-08-01)
During an investigation of new actinomycete species from Caribbean sponges for novel bioactive natural products, frigocyclinone (1), dimethyldehydrorabelomycin (3) and six new angucyclinone derivatives were isolated from Streptomyces sp. strain M7_15 associated with the sponge Scopalina ruetzleri. Of these, monacyclinones
Cheng-Kun Lin et al.
Organic & biomolecular chemistry, 13(7), 2100-2107 (2014-12-20)
A straightforward synthesis of novel, 2-heterocyclyl polyhydroxylated pyrrolidines is described. Stereocontrolled additions of nucleophiles to cyclic nitrones generated the corresponding 2,3-trans adducts, allowing the synthesis of the corresponding pyrrolidines via key intermediates bearing an alkyne and a nitrile oxide. Three
Jon Kapla et al.
Physical chemistry chemical physics : PCCP, 17(34), 22438-22447 (2015-08-08)
The disaccharide trehalose (TRH) strongly affects the physical properties of lipid bilayers. We investigate interactions between lipid membranes formed by 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) and TRH using NMR spectroscopy and molecular dynamics (MD) computer simulations. We compare dipolar couplings derived from DMPC/TRH
Prabhakar S Achanta et al.
Fitoterapia, 100, 166-173 (2014-12-08)
Ten malabaricane type triterpenes were isolated from the oleoresin of Ailanthus malabarica, out of which six (1-6) were new. For three of the known compounds (7-9), NMR assignments are being reported for the first time. Compound 10, a known one
Noemí Alarcos et al.
Physical chemistry chemical physics : PCCP, 17(25), 16257-16269 (2015-04-15)
We report on the steady-state, picosecond and femtosecond time-resolved studies of a charge and proton transfer dye 6-amino-2-(2'-hydroxyphenyl)benzoxazole (6A-HBO) and its methylated derivative 6-amino-2-(2'-methoxyphenyl)benzoxazole (6A-MBO), in different solvents. With femtosecond resolution and comparison with the photobehaviour of 6A-MBO, we demonstrate
Gang Fan et al.
Journal of pharmaceutical and biomedical analysis, 98, 364-370 (2014-07-06)
Swertia mussotii Franch. and Swertia chirayita Buch.-Ham. have been commonly used under the same name "Zangyinchen" for the treatment of liver and gallbladder diseases in traditional Tibetan medicine. Detailed characterization and comparison of the complete set of metabolites of these
Xijuan Chen et al.
The Science of the total environment, 505, 39-46 (2014-10-13)
Aerobic degradation experiments of Triclosan were performed in activated sludge to identify possible transformation products for this compound. During 7 days, the formation of biotransformation products such as 2,4-Dichlorophenol, 4-Chlorocatechol, 5-Hydroxy-Triclosan and other Monohydroxy-Triclosan derivatives as well as Dihydroxy-Triclosan-derivatives were
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