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139386

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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
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.
Wei Sun et al.
International immunopharmacology, 23(1), 247-253 (2014-09-15)
Resolvin D1 (RvD1), an endogenous lipid mediator derived from docosahexaenoic acid, has been reported to promote a biphasic activity in anti-inflammatory response and regulate inflammatory resolution. The present study aimed to determine the endogenous expression pattern of RvD1 in a
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, 110, 37-45 (2015-01-08)
This study describes the identification of regioisomers and enantiomers of triacylglycerols of C20 polyunsaturated fatty acids (PUFAs) in the alga Trachydiscus minutus cultivated at different temperatures using reversed- and chiral-phase liquid chromatography-mass spectrometry. The use of the two different phases
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
Kabo Masisi et al.
Journal of agricultural and food chemistry, 63(10), 2715-2724 (2015-02-24)
The antioxidant potential of carotenoids from aleurone, germ, and endosperm fractions of barley, corn, and wheat has been evaluated. HPLC analysis confirmed the presence of lutein and zeaxanthin carotenoids (nd-15139 μg/kg) in extracts of cereal grain fractions. The antioxidant properties
Occurrence, mechanisms and analytical applications of electrogenerated chemiluminescence. A review
Knight.WA and Greenway.MG et al.
Analyst, 119(5), 879- 890 (1994)
D Draganescu et al.
International journal of biological macromolecules, 72, 614-623 (2014-09-23)
Flaxseed lignans are a natural source of useful biologically active components that show a diverse spectrum of health-promoting properties. The valuable effects of the phenolic molecules are mainly due to their antioxidant activity by preventing oxidative stress and stimulate collagen
Toyotaka Sato et al.
The Journal of veterinary medical science, 76(7), 937-945 (2014-03-22)
Understanding the prevalence of antimicrobial-resistance and the relationship between emergence of resistant bacteria and clinical treatment can facilitate design of effective treatment strategies. We here examined antimicrobial susceptibilities of Escherichia coli isolated from dogs admitted to a university hospital (University
V Scott Sharp et al.
Journal of chromatography. A, 1363, 183-190 (2014-04-15)
Using HPLC chiral separation screening, various columns representing the polysaccharide, macrocyclic antibiotic and brush classes were assessed in multiple chromatographic modes for the separation of evacetrapib, a potential cardiovascular drug, from its enantiomer, two diastereomers and several impurities. Screening data
Stanley S Chou et al.
Nature communications, 6, 8311-8311 (2015-10-08)
Establishing processing-structure-property relationships for monolayer materials is crucial for a range of applications spanning optics, catalysis, electronics and energy. Presently, for molybdenum disulfide, a promising catalyst for artificial photosynthesis, considerable debate surrounds the structure/property relationships of its various allotropes. Here
Ruchi Singh et al.
Journal of pharmaceutical and biomedical analysis, 105, 150-155 (2015-01-03)
Mangifera indica, commonly called mango or amra belonging to a family of Anacardiaceae, is an important medicinal plant widely used in a variety of Ayurvedic preparations. Extract of its bark, leaves, flowers and kernels are being extensively used for curing
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
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
Kathene C Johnson-Henry et al.
The Journal of nutrition, 144(11), 1725-1733 (2014-08-22)
Few studies have focused on the ability of prebiotics to prevent pathogen-induced cellular changes or alter the composition of the intestinal microbiota in complimentary relevant cell and animal models of inflammatory bowel disease. The objective of this study was to
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
Ben C L Chan et al.
The Journal of pharmacy and pharmacology, 67(1), 107-116 (2014-09-13)
The aims of this study were to identify the active ingredients from Portulaca oleracea L. (PO) that could provide synergism with antibiotics against methicillin-resistant Staphylococcus aureus (MRSA) and their possible mechanisms of resistance inhibition. High-speed counter-current chromatography (HSCCC) coupled with gas
Ching-Chang Lee et al.
The Science of the total environment, 502, 417-425 (2014-10-01)
Fish populations constitute an important part of aquatic ecosystems. Thus, their accumulation of nonylphenol (NP) and bisphenol A (BPA) may pose risks to ecosystems and human health. This study analyzed the concentrations of NP and BPA in four types 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
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
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
Panagiota Nikolaou et al.
Journal of pharmaceutical and biomedical analysis, 102, 25-32 (2014-09-23)
A sensitive and accurate gas chromatography-mass spectrometric method was developed and validated for the simultaneous determination of levetiracetam and lamotrigine in whole blood. A solid-phase extraction (SPE) procedure using HF Bond Elut C18 columns followed by derivatization using N-methyl-N-tert-butyldimethylsilyl-trifluoroacetamide (MTBSTFA)
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
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
Luiz G Maturana et al.
Brain and behavior, 3(4), 417-430 (2014-01-02)
The purpose of this study was to investigate the influence of implanting collagen with a supramolecular organization on peripheral nerve regeneration, using the sciatic nerve tubulization technique. For this purpose, adult female Sprague Dawley rats were divided into five groups:
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
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
Seongjin Hong et al.
Environmental pollution (Barking, Essex : 1987), 199, 110-118 (2015-02-04)
The major AhR-active PAHs were identified in crude oil and oil-contaminated sediments by use of effect-directed analysis. As part of the study, an enhanced potency balance analysis was conducted by establishing the novel relative potency values of (alkyl)-PAHs from the
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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