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439193

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Zoltán-István Szabó et al.
Journal of pharmaceutical and biomedical analysis, 117, 398-404 (2015-10-07)
The enantiomers of asenapine maleate (ASN), a novel antipsychotic against schizophrenia and mania with bipolar I disorder have been separated by cyclodextrin (CD) modified capillary zone electrophoresis for the first time. 15 different CDs were screened as complexing agents and...
Matías Butler et al.
Journal of mass spectrometry : JMS, 50(1), 136-144 (2015-01-21)
A series of 11 pairs of substituted pyrazine N-oxides, differing in the substituent position, were examined using electrospray ionization mass spectrometry (ESI-MS) in order to use spectra to assess the differentiation of positional isomers. For each compound, mass spectra were...
Amandeep Kaur et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 69(3-4), 110-116 (2014-05-31)
The antileishmanial activity of extracts and phytoconstituents of Moringa oleifera Lam. was investigated in vitro against promastigotes of Leishmania donavani. The 70% ethanolic extract of roots and the methanolic extract of leaves showed moderate inhibitory activity with IC50 values of...
Tânia Petta et al.
Enzyme and microbial technology, 58-59, 36-43 (2014-04-16)
Lipid mediators such as the leukotrienes, resolvins and protectins have been considered excellent models for the development of new anti-inflammatory drugs, due to their high potentiality. Nevertheless, only tiny amounts are available from natural sources and they have to be...
Samantha A Radford et al.
Journal of agricultural and food chemistry, 62(29), 7085-7091 (2014-06-10)
A solid phase extraction method was developed to isolate four insecticide degradates from baby food that were measured subsequently using high-performance liquid chromatography-tandem mass spectrometry. The degradates [parent insecticide] measured were malathion dicarboxylic acid [malathion], 3,5,6-trichloro-2-pyridinol [chlorpyrifos, chlorpyrifos methyl] (TCPy)...
Ottmar Golf et al.
Journal of the American Society for Mass Spectrometry, 26(1), 44-54 (2014-11-09)
Here we present a proof of concept cross-platform normalization approach to convert raw mass spectra acquired by distinct desorption ionization methods and/or instrumental setups to cross-platform normalized analyte profiles. The initial step of the workflow is database driven peak annotation...
Dafni Dimakopoulou-Papazoglou et al.
Food microbiology, 53(Pt B), 76-81 (2015-12-19)
The effect of pH and water activity (aw) on the formation of biofilm by Salmonella enterica ser. Newport, previously identified as a strong biofilm producer, was assessed. Biofilm formation was evaluated in tryptone soy broth at 37 °C and at different...
Mohammad Asif Iqbal et al.
Journal of chromatography. A, 1373, 149-158 (2014-12-04)
In the analysis of biogenic volatile organic compounds (BVOCs) in ambient air, preparation of a sub-ppb level standard is an important factor. This task is very challenging as most BVOCs (e.g., monoterpenes) are highly volatile and reactive in nature. As...
Laura Jaime et al.
Journal of the science of food and agriculture, 95(4), 722-729 (2014-06-17)
In this work three different techniques were applied to extract dry leaves of spinach (Spinacia oleracea): solid-liquid extraction (SLE), pressurised liquid extraction (PLE) and supercritical fluid extraction (SFE) to investigate the influence of extraction solvent and technique on extracts composition...
Bin Xu et al.
Talanta, 132, 245-251 (2014-12-06)
A new isotope-dilution liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for determination of sulfur mustard (SM) has been developed using a direct chemical derivatization method by nucleophile potassium thioacetate (PTA) in aqueous solution. The reaction conditions for derivatization, such as reaction...
Zhiming Xiao et al.
Journal of chromatography. A, 1418, 29-35 (2015-10-05)
Subcritical water extraction was investigated as a novel and alternative technology for the separation of trace amounts of chloramphenicol, thiamphenicol, florfenicol and its major metabolite florfenicol amine from poultry tissues and its results were compared with those of conventional shaking...
Mark E Lobatto et al.
ACS nano, 9(2), 1837-1847 (2015-01-27)
Atherosclerosis is a major cause of global morbidity and mortality that could benefit from novel targeted therapeutics. Recent studies have shown efficient and local drug delivery with nanoparticles, although the nanoparticle targeting mechanism for atherosclerosis has not yet been fully...
Chang-Seob Seo et al.
Molecular medicine reports, 12(5), 7789-7795 (2015-09-24)
Aucklandia lappa Decne, a well-known traditional herbal medicine, is used for the treatment of asthma, rheumatism, coughs, tuberculosis and numerous other diseases. The present study evaluated the inhibitory effects of the three sesquiterpene lactones costunolide, dehydrocostus lactone, and alantolactone, isolated...
S Nath et al.
International journal of impotence research, 27(6), 215-220 (2015-08-28)
Ricinus communis L. has ethnopharmacological contraceptive reputation but its stem bark has unexplored mechanisms of action in female reproductive system. In the present study, the effect of methanolic and aqueous extracts from the stem bark of the plant was examined...
Tatjana Peskan-Berghöfer et al.
The New phytologist, 208(3), 873-886 (2015-06-16)
Root colonization by the beneficial fungus Piriformospora indica is controlled by plant innate immunity, but factors that channel this interaction into a mutualistic relationship are not known. We have explored the impact of abscisic acid (ABA) and osmotic stress on...
Yuanyuan Shi et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 986-987, 100-107 (2015-03-01)
Picrasma quassioides (D. Don) Benn. is used in traditional Chinese medicine for the treatment of inflammation. Characteristic components of the medicinal extract are canthinone alkaloids. In this study, a sensitive and rapid liquid chromatography with tandem mass spectrometry method has...
Tam T T N Nguyen et al.
Analytical and bioanalytical chemistry, 407(28), 8497-8503 (2015-09-04)
An analytical method based on capillary electrophoresis (CE) and inductively coupled plasma mass spectrometry (ICP-MS) detection was developed for studies on the interaction of gold-containing drugs and plasma proteins using auranofin as example. A detection limit of 18 ng/mL of...
Milena M Madry et al.
Bioanalysis, 6(23), 3183-3196 (2014-12-23)
Toenails were assessed as an alternative matrix to hair for retrospective monitoring of cocaine consumption of recreational and dependent users. Results/methodology: Toenail clippings, scrapings and hair samples from recreational and dependent cocaine users were analyzed for cocaine and metabolites. Dependent...
Jiangbin Ye et al.
Cancer discovery, 4(12), 1406-1417 (2014-09-05)
The de novo synthesis of the nonessential amino acid serine is often upregulated in cancer. In this study, we demonstrate that the serine catabolic enzyme, mitochondrial serine hydroxymethyltransferase (SHMT2), is induced when MYC-transformed cells are subjected to hypoxia. In mitochondria...
Masazumi Tamura et al.
Nature communications, 6, 8580-8580 (2015-10-06)
Multidentate materials formed by simply mixing heterogeneous and homogeneous components are promising for construction of versatile active sites on the surface of heterogeneous compounds, however, to the best of our knowledge, there are no reports on such materials. Self-assembly of...
D Q Li et al.
Journal of chromatography. A, 1345, 50-56 (2014-05-06)
Xanthine oxidase (XO) can catalyze hypoxanthine and xanthine to generate uric acid and reactive oxygen species (ROS), including superoxide anion radical (O₂(•-)) and hydrogen peroxide. XO inhibitors and free radical scavengers are beneficial to the treatment of gout and many...
Dapeng Yan et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(48), 14942-14947 (2015-12-03)
FoxP3(+) T regulatory (Treg) cells have a fundamental role in immunological tolerance, with transcriptional and functional phenotypes that demarcate them from conventional CD4(+) T cells (Tconv). Differences between these two lineages in the signaling downstream of T-cell receptor-triggered activation have...
Francesca Catenia et al.
Natural product communications, 10(11), 1833-1838 (2016-01-12)
The phytochemical investigation of the methanolic extract of the white rot fungus Meripilus giganteus resulted in the isolation and identification of complex mixtures of free fatty acids (1), monoacylglycerols (2), cerebrosides (3), ergosterol (4) and ergosterol peroxide (5). The structures...
Chengcheng Peng et al.
Biomedical chromatography : BMC, 29(3), 425-436 (2014-07-22)
Shexiang Baoxin pills (SBP) are a traditional Chinese medicine that are used for treating coronary heart disease. Ginsenosides are the main effective components of SBP, but a comprehensive and deep pharmacokinetic study of ginsenosides in SBP, including multiple dosing and...
Yi Liang et al.
Biomedical chromatography : BMC, 28(10), 1378-1383 (2014-03-22)
A simple, rapid and sensitive ultra-performance liquid chromatography-tandem mass spectrometry method was developed and validated for the determination of honokiol in beagle dog plasma after intravenous guttae. With addition of the internal standard magnolol, plasma samples were precipitated with methanol...
Rajib Ghosh et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 15(18), 4126-4131 (2014-09-25)
Understanding the excited-state properties of thioflavin-T (ThT) has been of immense importance, because of its efficient amyloid-sensing ability related to neurodegenerative disorders. The excited-state dynamics of ThT is studied by using sub-pico- and nanosecond time-resolved transient absorption techniques as well...
M Anbarasu et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 135, 536-539 (2014-08-16)
Polyethylene glycol (PEG) coated Fe3O4 nanoparticles were synthesized by chemical co-precipitation method. With polyethylene glycol (PEG) as a stabilizer and dispersant. The X-ray diffraction and selected area electron diffraction (SAED) results show that the cubic inverse spinel structure of pure...
Seon-Mi Yu et al.
International journal of molecular medicine, 35(2), 325-332 (2014-12-02)
Dedifferentiation and inflammation are major features of cartilage degeneration during the pathogenesis of osteoarthritis (OA). Thymoquinone (TQ) is the major compound of black seed oil isolated from Nigella sativa with various beneficial or harmful effects on several diseases; however, its...
Anja Hortemo Høie et al.
Mutagenesis, 30(5), 643-649 (2015-04-24)
Furfuryl alcohol (FFA) is present in many heat-treated foods as a result of its formation via dehydration of pentoses. It is also used legally as a flavouring agent. In an inhalation study conducted in the National Toxicology Program, FFA showed...
Marie-Clotilde Bernard et al.
PloS one, 10(4), e0121518-e0121518 (2015-04-04)
HSV-2 vaccine is needed to prevent genital disease, latent infection, and virus transmission. A replication-deficient mutant virus (dl5-29) has demonstrated promising efficacy in animal models of genital herpes. However, the immunogenicity, protective efficacy, and non-replicative status of the highly purified...
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