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Daniel M Kulakowski et al.
Journal of chromatography. A, 1364, 74-82 (2014-09-15)
This study presents a strategy based on repeatable reversed-phase LC-TOF-MS methods and chemometric statistical tools, including untargeted PCA and supervised OPLS-DA models, to identify low-yielding compounds with potent immunostimulant activity in Phaleria nisidai (Thymelaeaceae), a plant with a history of
Rosa Ana Pérez et al.
Analytical and bioanalytical chemistry, 407(7), 1913-1924 (2015-02-04)
Two magnetic solid-phase extraction methods (mSPE) were developed and compared for the extraction and preconcentration of polychlorinated biphenyls (PCBs) from water and soil leachates. Analyses were carried out by gas chromatography coupled to triple quadrupole mass spectrometry. The mSPE extraction
Thiloka C Ariyasena et al.
Journal of chromatography. A, 1361, 240-254 (2014-08-30)
Retention factors on several columns and at various temperatures using gas chromatography and from reversed-phase liquid chromatography on a SunFire C18 column with various mobile phase compositions containing acetonitrile, methanol and tetrahydrofuran as strength adjusting solvents are combined with liquid-liquid
Jin Liu et al.
Biomedical and environmental sciences : BES, 26(9), 735-741 (2013-10-09)
This study was aimed to determine the effects of n-hexane on the maturation of mouse oocytes. Cell culture was used to observe the maturation of mouse oocytes and CLSM was employed to determine their apoptosis. Germinal vesicle breakdown (GVBD) and
Anna Hallmann et al.
Journal of pharmaceutical and biomedical analysis, 117, 311-315 (2015-09-26)
The aim of this study was to identify and quantify natural steroid hormones (17β-estradiol E2, estriol E3, estrone E1, testosterone T) and xenoestrogen (17α-ethinylestradiol EE2) in gills and gonads of Mytilus trossulus from the Gulf of Gdańsk, Poland, using the
Francesco Menichini et al.
Journal of enzyme inhibition and medicinal chemistry, 29(5), 677-685 (2013-10-10)
Cardiospermum halicacabum is widely used in traditional medicine. Previous studies have focused on the aerial parts, while the seeds have been poorly investigated. This work aimed to analyse the chemical composition of extracts from aerial parts and seeds obtained using
Ahmad Aqel et al.
Journal of chromatographic science, 52(3), 201-210 (2013-02-21)
This paper describes the comprehensive fabrication of monolithic materials for use as stationary phases in capillary liquid chromatography. Several columns were synthesized in the confines of 320 µm i.d. fused-silica capillaries by single-step in situ copolymerization of benzyl methacrylate and
Hwanmi Lim et al.
Environmental science & technology, 49(5), 3101-3109 (2015-01-28)
Benz[j]aceanthrylene (B[j]A) is a cyclopenta-fused polycyclic aromatic hydrocarbon with strong mutagenic and carcinogenic effects. We have identified B[j]A in air particulate matter (PM) in samples collected in Stockholm, Sweden and in Limeira, Brazil using LC-GC/MS analysis. Determined concentrations ranged between
Shannon L Haughney et al.
Nanoscale, 6(22), 13770-13778 (2014-10-07)
Acute respiratory infections represent a significant portion of global morbidity and mortality annually. There is a critical need for efficacious vaccines against respiratory pathogens. To vaccinate against respiratory disease, pulmonary delivery is an attractive route because it mimics the route
Josué A Velázquez-Moyado et al.
Journal of ethnopharmacology, 174, 403-409 (2015-09-01)
The rhizome of Ligusticum porteri Coulter& Rose (LP) has been traditionally used by the ethnic group Raramuri in the North of México for treatment of diabetes, tuberculosis, stomachaches, diarrhea and ritual healing ceremonies. It is use as antiulcer remedy has
Ingebjørg H Nymo et al.
Comparative immunology, microbiology and infectious diseases, 37(3), 195-204 (2014-02-19)
Brucellosis, a worldwide zoonosis, is linked to reproductive problems in primary hosts. A high proportion of Brucella-positive hooded seals (Cystophora cristata) have been detected in the declined Northeast Atlantic stock. High concentrations of polychlorinated biphenyls (PCBs) have also been discovered
Naghmeh Soltani et al.
The Science of the total environment, 505, 712-723 (2014-12-03)
This study investigates trace elements and PAHs content in road dust of Isfahan metropolis, central Iran. The mean concentrations of As, Cd, Cu, Ni, Pb, Sb and Zn are 22.15, 2.14, 182.26, 66.63, 393.33, 6.95 and 707.19 mg kg(-1), respectively.
Cristiane Effting et al.
Therapeutic drug monitoring, 37(1), 66-70 (2015-01-15)
Busulfan is an alkylating agent used for conditioning patients undergoing hematopoietic stem cell transplantation with a narrow therapeutic range and highly variable pharmacokinetics. High concentrations induce toxicity, especially hepatic veno-occlusive disease, also referred to as sinusoidal obstruction syndrome. This study
D Pasupuleti et al.
Journal of chromatography. A, 1421, 162-170 (2015-10-03)
Alkyl esters of fatty acids (FAAEs) with carbon numbers from 8 to 20 formed protonated monomers and proton bound dimers through atmospheric pressure chemical ionization reactions and these gas ions were characterized for their field dependent mobility coefficients using differential
Jun Zhou et al.
Journal of pharmaceutical and biomedical analysis, 94, 30-35 (2014-02-18)
A new and fast sample preparation technique based on two-phase hollow fiber liquid phase microextraction (HF-LPME) with magnetofluid was developed to quantitate and determine the four phenylethanoid glycosides (PhGs) (Echinacoside, Tubuloside B, Acteoside and Isoacteoside) in plasma after oral administration
Masayuki Sugimoto et al.
Biochimica et biophysica acta, 1851(12), 1554-1565 (2015-09-24)
Sphingomyelin (SM) is synthesized by SM synthase (SMS) from ceramide (Cer). SM regulates signaling pathways and maintains organ structure. SM comprises a sphingoid base and differing lengths of acyl-chains, but the importance of its various forms and regulatory synthases is
Serkan Koldaş et al.
Journal of the science of food and agriculture, 95(4), 786-798 (2014-09-10)
A detailed phytochemical analysis of Origanum vulgare L. ssp. viride (Boiss.) Hayek was carried out and the antioxidant activities of five different crude extracts were determined. The antiproliferative activities of the extracts were determined using the xCELLigence system (Real Time
Robert J Cannon et al.
Journal of agricultural and food chemistry, 63(7), 1915-1931 (2015-02-03)
Lemons (Citrus limon) are a desirable citrus fruit grown and used globally in a wide range of applications. The main constituents of this sour-tasting fruit have been well quantitated and characterized. However, additional research is still necessary to better understand
Mohammed Anwar et al.
International journal of pharmaceutics, 468(1-2), 158-164 (2014-04-22)
Nano-sized curcumin-loaded super-paramagnetic iron oxide nanoparticles (CUR-OA-SPIONs) were synthesized chemically by co-precipitation method using oleic acid as a stabilizer and Myrj 52 as a surfactant. The synthesized nanoparticles were characterized for their shape, size, surface morphology, electrokinetic potential, magnetic properties
Tomáš Řezanka et al.
Phytochemistry, 104, 95-104 (2014-05-17)
Structured triacylglycerols (TAGs) were isolated from nine cultivated strains of microalgae belonging to different taxonomic groups, i.e. Audouinella eugena, Balbiania investiens, Myrmecia bisecta, Nannochloropsis limnetica, Palmodictyon varium, Phaeodactylum tricornutum, Pseudochantransia sp., Thorea ramosissima, and Trachydiscus minutus. They were separated and
Marwa Ahmed et al.
Journal of chromatography. A, 1360, 100-109 (2014-08-19)
Single-walled carbon nanotubes were encapsulated into different polymer-based monolithic backbones. The polymer monoliths were prepared via the copolymerization of 20% monomers, glycidyl methacrylate, 20% ethylene glycol dimethacrylate and 60% porogens (36% 1-propanol, 18% 1,4-butanediol) or 16.4% monomers (16% butyl methacrylate
Milka Todorova et al.
Phytochemistry, 110, 140-149 (2014-12-30)
Ten new sesquiterpene alcohols of which seven germacranes, a eudesmane, a guaiane and an oplopane were isolated from the aerial parts of Artemisia alba Turra. Their structures and relative stereochemistry were elucidated by spectral methods ((1)H and (13)C NMR, COSY
Kai Yu et al.
Environmental technology, 36(5-8), 1008-1015 (2014-10-18)
The polycyclic aromatic hydrocarbons (PAHs) in crumb tyre rubber were firstly degraded under UV irradiation in the presence of rutile TiO2 and hydrogen peroxide. The effects of light intensity, catalyst amount, oxidant amount, initial pH value, co-solvent content, and reaction
Shuai Zhang et al.
Analytical and bioanalytical chemistry, 407(30), 8971-8977 (2015-10-03)
Reliably detecting nitrofurazone (NFZ) residues in farmed crab and shrimp was previously hindered by lack of appropriately specific analytical methodology. Parent NFZ rapidly breaks down in meat, and the commonly used side-chain metabolite, semicarbazide (SEM), is non-specific as it occurs
Amy Wong et al.
Journal of lipid research, 55(9), 1902-1913 (2014-07-27)
We describe a novel LC method for the simultaneous and quantitative profiling of 43 oxylipins including eicosanoids, endocannabinoids, and structurally related bioactive lipids with modified acyl groups. The LC-MS/MS method uses switching at a defined time between negative and positive
Eveline Dischkaln Stolz et al.
The Journal of pharmacy and pharmacology, 66(12), 1774-1785 (2014-08-15)
Investigate the involvement of monoaminergic and glutamatergic systems on the antinociceptive and ataxic effects of uliginosin B, which we have already demonstrated to be a promising molecular scaffold to develop new analgesic drugs. Uliginosin B was obtained from hexane extract
Dawei Qi et al.
Journal of chromatography. A, 1374, 273-277 (2014-12-06)
In this study, a novel fully automated on-line coupled liquid chromatography-gas chromatography (LC-GC) technique was reported and applied for the determination of organochlorine pesticide residues (OCPs) in tobacco and tobacco products. Using a switching valve to isolate the capillary pre-column
Anna Zadlo et al.
Chembiochem : a European journal of chemical biology, 16(4), 677-682 (2015-02-05)
Mixed carbonates of 7-hydroxy-4-methylcoumarin were shown to be a new class of probe for fluorogenic assays. They are promising substrates for fingerprinting enzyme hydrolytic activity, and proved particularly useful because of the low level of nonspecific degradation and ease of
Yu Zhang et al.
Environmental science and pollution research international, 21(16), 9468-9476 (2013-08-15)
Nonylphenol ethoxylates (NPEOs) with low ethoxylation degree (NPav₂EO; containing two ethoxy units on average) and estrogenic properties are the intermediate products of nonionic surfactant NPEOs. To better understand the environmental fate of low-ethoxylated NPEOs, phylogenetically diverse low-ethoxylated NPEO-degrading bacteria were
Fenja Siotto et al.
Virology, 466-467, 103-111 (2014-12-03)
Phycodnaviruses are dsDNA viruses, which infect algae. Their large genomes encode many gene products, like small K(+) channels, with homologs in prokaryotes and eukaryotes. Screening for K(+) channels revealed their abundance in viruses from fresh-water habitats. Recent sequencing of viruses
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