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Showing 1-30 of 467 results for "78314" within Papers
Jessica Momb et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(2), 549-554 (2012-12-26)
Maternal supplementation with folic acid is known to reduce the incidence of neural tube defects (NTDs) by as much as 70%. Despite the strong clinical link between folate and NTDs, the biochemical mechanisms through which folic acid acts during neural
Christian Sattler et al.
Molecular genetics and genomics : MGG, 288(9), 413-424 (2013-06-27)
Methane is a key intermediate in the carbon cycle and biologically produced by methanogenic archaea. Most methanogens are able to conserve energy by reducing CO2 to methane using molecular hydrogen as electron donor (hydrogenotrophic methanogenesis), but several hydrogenotrophic methanogens can
Mauro Serricchio et al.
Biology open, 4(9), 1143-1153 (2015-08-16)
The observation that the membranes of flagella are enriched in sterols and sphingolipids has led to the hypothesis that flagella might be enriched in raft-forming lipids. However, a detailed lipidomic analysis of flagellar membranes is not available. Novel protocols to
Eva Csuhai et al.
Journal of pharmaceutical sciences, 104(3), 1087-1098 (2015-01-07)
Despite extensive study of liposomal drug formulations, reliable predictive models of release kinetics in vitro and in vivo are still lacking. Progress in the development of robust, predictive release models has been hindered by a lack of systematic, quantitative characterization
Roberto Pontarolo et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 965, 133-141 (2014-07-13)
The objective of this work was to develop and validate a HILIC-MS/MS method for the simultaneous determination of metformin and vildagliptin in human plasma. Chromatographic separation was achieved using an Atlantis HILIC Silica 150-mm × 2.1-mm, 3-μm particle size column
Joseph J Russell et al.
Journal of chromatography. A, 1405, 72-84 (2015-06-21)
The performance of the charged aerosol detector (CAD) was investigated using a diverse set of 29 solutes, including acids, bases and neutrals, over a range of mobile phase compositions, particularly with regard to its suitability for use in hydrophilic interaction
Tejia Zhang et al.
ACS chemical biology, 10(6), 1398-1403 (2015-03-31)
BCL-2 proteins are key regulators of programmed cell death. The interplay between pro and antiapoptotic BCL-2 members has important roles in many cancers. In addition to their apoptotic function, recent evidence supports key nonapoptotic roles for several BCL-2 proteins. We
Jixia Wang et al.
Journal of chromatography. A, 1398, 29-46 (2015-05-04)
Nowadays more and more hydrophilic interaction liquid chromatography (HILIC) columns with diverse functional groups have become commercially available, which pose a challenge to select an appropriate one. However, there is no universal model to provide guidance for selecting HILIC columns.
Élida Alechaga et al.
Analytical and bioanalytical chemistry, 406(20), 4941-4953 (2014-06-03)
A novel LC-MS/MS method has been developed for the determination of 13 aminoglycoside antibiotics in meat products. Among the chromatographic columns tested, the mixed-mode Obelisc R provided the best performance. Electrospray has been used for the coupling of the LC
Julie Maublanc et al.
International journal of legal medicine, 129(2), 259-268 (2014-04-30)
Despite a non-invasive sampling, hair samples are generally collected in limited amounts for an obvious esthetic reason. In order to reduce the required quantity of samples, a multianalytes method allowing simultaneous identification and quantification of 35 psychoactive drugs was developed.
Thomas Bock et al.
Nucleic acids research, 42(22), 13525-13533 (2014-11-16)
The thermophilic fungus Chaetomium thermophilum holds great promise for structural biology. To increase the efficiency of its biochemical and structural characterization and to explore its thermophilic properties beyond those of individual proteins, we obtained transcriptomics and proteomics data, and integrated
João Cleverson Gasparetto et al.
PloS one, 10(3), e0118922-e0118922 (2015-03-11)
For decades guaco species have been empirically used for the treatment of respiratory diseases. However, studies have shown that the toxic and therapeutic effects of the main guaco metabolites are dose-dependent, and none clinical study was done to evaluate the
Darshan V Chaudhary et al.
Biomedical chromatography : BMC, 29(10), 1527-1534 (2015-03-13)
A simple, rapid and sensitive ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method has been developed and validated for the determination of alosetron (ALO) in human plasma. The assay method involved solid-phase extraction of ALO and ALO 13C-d3 as internal standard
Kathrin Cordts et al.
Amino acids, 47(9), 2015-2022 (2015-07-15)
Homoarginine (hArg) is a non-essential amino acid that was identified as a risk marker for cardiovascular disease. Several analytical methods have been described for the quantification of hArg in biological samples. The aim of this study was to compare a
Clara Coscollà et al.
Journal of chromatography. A, 1368, 132-142 (2014-10-15)
A comprehensive strategy for the analysis of current airborne pesticides has been developed using liquid chromatography coupled to high resolution mass spectrometry. The methodology includes both quantitative target analysis and post-run target screening analysis. The quantitative method was validated after
Shuang-Qing Zhang
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 978-979, 24-28 (2014-12-23)
Icaritin (ICT), a bioactive metabolite of prenylflavonoids from genus Epimedium, has displayed potential benefits for the treatment of osteoporosis, prostate cancer, liver cancer, renal cancer and breast cancer. To investigate the quantity of ICT in bones in vivo, a simple
Richie Khanna et al.
PloS one, 9(7), e102092-e102092 (2014-07-19)
Pompe disease is an inherited lysosomal storage disorder that results from a deficiency in acid α-glucosidase (GAA) activity due to mutations in the GAA gene. Pompe disease is characterized by accumulation of lysosomal glycogen primarily in heart and skeletal muscles
Dasheng Lu et al.
Chemosphere, 114, 327-336 (2014-08-13)
A novel method was developed for the analysis of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in human hair samples. External contaminants of hair were extracted with acetone under sonication, while washed hair was further hydrolyzed
Laurent Imbert et al.
Journal of analytical toxicology, 38(9), 676-680 (2014-09-05)
A liquid chromatography coupled with electrospray tandem mass spectrometry method was developed for the analysis of ethylene glycol, diethylene glycol, triethylene glycol, 1,4-butanediol, 1,2-butanediol, 2,3-butanediol, 1,2-propanediol and 1,3-propanediol, in serum after a Schotten-Baumann derivatization by benzoyl chloride. Usual validation parameters
Vendula Pernikářová et al.
Journal of proteomics, 125, 68-75 (2015-05-16)
FerB is a cytoplasmic flavoprotein from the soil bacterium Paracoccus denitrificans with a putative role in defense against oxidative stress. To further explore this hypothesis, we compared protein variations upon methyl viologen treatment in wild-type and FerB mutant strains by
Alexandre Grand-Guillaume Perrenoud et al.
Journal of chromatography. A, 1360, 275-287 (2014-08-19)
Superficially porous particles (SPP), or core shell particles, which consist of a non-porous silica core surrounded by a thin shell of porous silica, have gained popularity as a solid support for chromatography over the last decade. In the present study
Lulu Dai et al.
Journal of chromatography. A, 1408, 87-92 (2015-07-18)
A sensitive analytical method using mixed mode HPLC separation coupled with charged aerosol detection (CAD) was developed for quantitative analysis of lithium. The method is capable of separating lithium ion from different drug matrices and other ions in a single
Fernando Andrade et al.
Journal of chromatographic science, 53(5), 787-792 (2014-09-28)
Asymmetric dimethylarginine (ADMA) is a competitive inhibitor of nitric oxide synthase, which is responsible for most of the vascular nitric oxide (NO) produced. NO is an important physiological mediator of vascular tone and structure in normally functioning endothelial cells. We
Daniela Salas et al.
Analytical and bioanalytical chemistry, 407(15), 4277-4285 (2014-11-28)
Artificial sweeteners are food additives employed as sugar substitutes which are now considered to be emerging organic contaminants. In the present study, a method is developed for the determination of a group of artificial sweeteners in environmental waters. Considering the
Rambabu Maddela et al.
Journal of pharmaceutical and biomedical analysis, 98, 68-73 (2014-06-03)
Eltrombopag is a thrombopoietin receptor agonist, used in the treatment of thrombocytopenia. This paper describes a liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay method for the determination of eltrombopag in human plasma samples using eltrombopag 13C4 as internal standard (IS). Analyte
Deborah Montenarh et al.
Analytical and bioanalytical chemistry, 406(24), 5939-5953 (2014-07-16)
In the present study, a liquid chromatography-mass spectrometry (LC-MS/MS) multi-analyte approach based on a simple liquid-liquid extraction was developed for fast target screening and quantification of 33 antidepressants in whole blood, plasma, and serum. The method was validated with respect
Carol L Cheatham et al.
Nutrients, 7(11), 9079-9095 (2015-11-06)
The aim was to explore the relation of human milk lutein; choline; and docosahexaenoic acid (DHA) with recognition memory abilities of six-month-olds. Milk samples obtained three to four months postpartum were analyzed for fatty acids, lutein, and choline. At six
Khaled M Mohamed et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 997, 1-6 (2015-06-16)
In some developing countries, p-phenylenediamine (PPD) is used in combination with Henna as hair dye or skin decoration. A sensitive LC-MS/MS method was developed and validated for the simultaneous determination of p-phenylenediamine (PPD) and its metabolites N-acetyl-p-phenylenediamine (MAPPD) and N,N-diacetyl-p-phenylenediamine
Charlotte Sy et al.
Marine drugs, 13(11), 7020-7039 (2015-11-28)
Recently isolated spore-forming pigmented marine bacteria Bacillus indicus HU36 are sources of oxygenated carotenoids with original structures (about fifteen distinct yellow and orange pigments with acylated d-glucosyl groups). In this study, we evaluated the stability (sensitivity to iron-induced autoxidation) and
A Hafeez et al.
Poultry science, 93(7), 1754-1763 (2014-05-28)
Minerals play an important role for growth and bone stability in broilers. Thermal treatment and inclusion of organic acids in feed may affect the mineral absorption and tibial quality in broilers. The study was conducted to investigate the effect of
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