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A1542

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Yueping Bao et al.
Chemosphere, 134, 550-556 (2015-01-07)
A systematic study on photolysis of tetrabromobisphenol A (2,2',6,6'-tetrabromo-4,4'-isopropylidendiphenol, TBBPA) in water was investigated under simulated sunlight irradiation. The results showed that the photolysis of TBBPA followed apparent pseudo-first-order kinetics. The photolysis rate constants (k) changed from 2.80 × 10(-2)...
Foon Yin Lai et al.
Journal of pharmaceutical and biomedical analysis, 114, 355-375 (2015-06-27)
Phenethylamine-based designer drugs are prevalent within the new psychoactive substance market. Characterisation of their metabolites is important in order to identify suitable biomarkers which can be used for better monitoring their consumption. Careful design of in vitro metabolism experiments using...
Maaike Welling et al.
EMBO reports, 16(7), 791-802 (2015-06-17)
Embryonic stem cell (ESC) cultures display a heterogeneous gene expression profile, ranging from a pristine naïve pluripotent state to a primed epiblast state. Addition of inhibitors of GSK3β and MEK (so-called 2i conditions) pushes ESC cultures toward a more homogeneous...
Jihye Kim et al.
Analytical and bioanalytical chemistry, 407(29), 8745-8752 (2015-09-26)
Single-drop microextraction (SDME) was in-line coupled with capillary electrophoresis-mass spectrometry to provide sample cleanup and enrichment simultaneously. Since there is no outlet vial in a conventional capillary electrophoresis-electrospray ionization-mass spectrometry (CE-ESI-MS) configuration, it is not easy to hang a single...
Andreas Bornø et al.
Journal of mass spectrometry : JMS, 49(10), 980-988 (2014-10-11)
The present study describes a new liquid chromatography tandem mass spectrometry method for high-throughput quantification of glucose and glycerol in human plasma using stable isotopically labeled internal standards and is suitable for simultaneous measurements of glucose and glycerol enrichments in...
Mei Liu et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1006, 8-15 (2015-11-01)
A rapid and sensitive liquid chromatography-tandem mass spectrometric (LC-MS/MS) assay method was developed and validated for simultaneous quantification of simvastatin (SV), its metabolite simvastatin hydroxy acid (SVA) and berberine (BBR) in rat plasma. Separation was performed on Poroshell 120 EC-C18...
Jan Soukup et al.
Journal of chromatography. A, 1374, 102-111 (2014-12-30)
Excess adsorption of water from aqueous acetonitrile mobile phases was investigated on 16 stationary phases using the frontal analysis method and coulometric Karl-Fischer titration. The stationary phases include silica gel and silica-bonded phases with different polarities, octadecyl and cholesterol, phenyl...
Chang-Er Chen et al.
Environment international, 85, 284-291 (2015-10-10)
The occurrence of antibiotics in the environment has raised much concern in recent years. Understanding their release, fate and behaviour in the environment is vital to assess potential risks. In this study, a novel passive water sampler - diffusion gradients...
Zbynek Dzuman et al.
Analytica chimica acta, 863, 29-40 (2015-03-04)
A new reliable and highly sensitive method based on high performance liquid chromatographic (HPLC) separation and high resolution tandem mass spectrometric detection (HRMS/MS) has been developed and validated for determination of 323 pesticide residues, 55 mycotoxins, and 11 plant toxins...
Yoshiaki Ohtsu et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 997, 56-63 (2015-06-21)
We developed and validated bioanalytical methods for a potent helicase-primase inhibitor ASP2151 that has two conformers. These conformers elute as unseparated broad peaks under ordinary high-performance liquid chromatographic conditions, indicating discernable differences in hydrophobicity. We observed that column temperature and...
Lauriane Goldwirt et al.
Journal of neuro-oncology, 122(2), 273-281 (2015-03-22)
Glioblastoma (GBM) is the most common primary malignant brain tumour in adults. Prognosis of GBM patients is poor with median overall survival around 15 months. Temozolomide is the chemotherapeutic agent used in the standard of care of newly diagnosed GBM...
Kyounghwan Lee et al.
Journal of molecular biology, 427(2), 274-286 (2014-12-03)
Myosin binding protein C is a thick filament protein of vertebrate striated muscle. The cardiac isoform [cardiac myosin binding protein C (cMyBP-C)] is essential for normal cardiac function, and mutations in cMyBP-C cause cardiac muscle disease. The rod-shaped molecule is...
Harriet Mörtstedt et al.
Journal of proteome research, 14(2), 860-873 (2014-12-30)
Hairdressers have an increased risk for developing airway symptoms, for example, asthma and rhinitis. Persulfates, which are oxidizing agents in bleaching powder, are considered important causal agents for these symptoms. However, the underlying mechanisms are unclear. The aim was therefore...
Srinivas Rao Chennamaneni et al.
Pharmaceutical research, 31(11), 3179-3190 (2014-06-21)
To advance therapy for the treatment of concurrent uveitis and post-cataract surgical inflammation; we evaluated pharmacokinetics and pharmacodynamics of Bioerodible Dexamethasone Implant (BDI) containing 0.3 mg of dexamethasone (DXM) in Concanavalin A (Con A) induced uveitis followed by phacoemulsification in...
Wenyi Hua et al.
Bioanalysis, 7(12), 1471-1482 (2015-07-15)
Quantitation of CAM H4 in biological matrix has been a challenge due to low concentrations, instability and the existence of four CAM diastereomers. Historically, either inactive clopidogrel acid or CAM diastereomers without separation were measured for exposure and PK parameters....
Liyun Ma et al.
Journal of separation science, 38(7), 1082-1089 (2015-02-03)
In the present study, one of the new generation of host molecules, cucurbit(6)uril (CB(6)), was immobilized onto silica (CB(6)/SiO2 ) by a sol-gel approach. CB(6)/SiO2 was characterized by NMR spectroscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, and elemental analysis. It...
Jana Paulsen et al.
Phytochemistry, 111, 149-153 (2015-02-11)
The genuine major benzylisoquinoline alkaloid occurring in the traditional medicinal plant greater celandine (Chelidonium majus L.) is 13,14-dihydrocoptisine and not - as described previously - coptisine. Structure of 13,14-dihydrocoptisine was elucidated. The discrepancy between the alkaloid pattern of the living...
Le Ngoc Tran et al.
Journal of chromatography. A, 1356, 289-293 (2014-07-20)
An organic-inorganic silica/zirconia hybrid monolithic capillary column was prepared by sol-gel process in a fused-silica capillary by using triethoxysilylpropylcarbamate (TEOSPC) derivative of clindamycin phosphate (CLIP) as a chiral selector. A sol solution consisting of 6 × 10(-3)M of polyethylene glycol...
Alberto Sánchez-Guijo et al.
Journal of lipid research, 56(2), 403-412 (2014-12-17)
Steroid sulfatase (STS) deficiency is the underlying cause of the skin condition known as recessive X-linked ichthyosis (RXLI). RXLI patients show scales on their skin caused by high concentrations of cholesterol sulfate (CS), as they are not capable of releasing...
Walid M Ebeid et al.
Analytical and bioanalytical chemistry, 406(26), 6701-6712 (2014-09-06)
A RP-LC method was developed and validated for simultaneous determination of the active components, azilsartan medoxomil (AZL) and chlorthalidone (CLT), in their novel antihypertensive combined recipe. The chromatographic separation was achieved on an Eclipse XDB-C18 (4.6 × 150 mm, 5 μm) column using a mobile...
Danilo Donnarumma et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 29(6), 2260-2267 (2015-02-26)
Bexsero, a new vaccine against Neisseria meningitidis serogroup B (MenB), is composed of 3 main recombinant proteins and an outer membrane vesicle component. One of the main bactericidal antigens, neisseria heparin binding antigen (NHBA), is present as a fusion protein...
Sridhar Veeraraghavan et al.
Journal of pharmaceutical and biomedical analysis, 94, 125-131 (2014-02-25)
Efficacy assessments using a combination of ruxolitinib and nilotinib necessitate the development of a high precision analytical method for determination of both drugs in plasma. A high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the simultaneous determination...
J Y Liew et al.
Nutrition, metabolism, and cardiovascular diseases : NMCD, 25(3), 274-279 (2015-02-03)
To investigate the association between vitamin D levels, angiographic severity of coronary artery disease, arterial stiffness and degree of peripheral arterial disease (PAD) as assessed by ankle brachial index (ABI). 375 patients undergoing coronary angiography from November 2012 to September...
Morten S Opstrup et al.
Contact dermatitis, 72(1), 55-58 (2014-09-12)
Chlorhexidine may cause type I and type IV allergy. Some chlorhexidine-allergic individuals have been exposed in the healthcare setting as patients or healthcare workers, but for others the source of sensitization is unknown. Chlorhexidine may be used as a preservative...
Li Jiao et al.
Digestive diseases and sciences, 60(12), 3590-3602 (2015-07-18)
Inflammatory bowel disease results from a combination of dysfunction of intestinal epithelial barrier and dysregulation of mucosal immune system. iPLA2β has multiple homeostatic functions and shown to play a role in membrane remodeling, cell proliferation, monocyte chemotaxis, and apoptosis. The...
Yunus Emre Unsal et al.
Journal of AOAC International, 97(4), 1034-1038 (2014-08-26)
Total concentration of metal ions at trace levels does not give sufficient information about toxicity and biological availability of these elements in fertilizer samples. In the presented work, a sequential extraction procedure modified by the European Community Bureau of Reference...
Yuwei Tian et al.
Analytical chemistry, 87(22), 11509-11515 (2015-10-17)
Monoclonal antibodies (mAbs) are among the fastest growing class of therapeutics due to their high specificity and low incidence of side effects. Unlike most drugs, mAbs are complex macromolecules (∼150 kDa), leading to a host of quality control and characterization...
Iva Kulic et al.
The Journal of experimental medicine, 212(1), 37-52 (2014-12-17)
Aberrant Notch activity is oncogenic in several malignancies, but it is unclear how expression or function of downstream elements in the Notch pathway affects tumor growth. Transcriptional regulation by Notch is dependent on interaction with the DNA-binding transcriptional repressor, RBPJ...
Pavla Pantůčková et al.
Journal of chromatography. A, 1389, 1-7 (2015-03-10)
Enhanced sensitivity for determination of basic drugs in body fluids was achieved by in-line coupling of extraction across supported liquid membrane (SLM) to large electrokinetic injection and transient isotachophoresis-capillary zone electrophoresis (tITP-CZE) in commercial CZE instrument. Twelve cm long tITP...
Chris L Schaich et al.
Journal of cardiovascular pharmacology, 65(5), 473-479 (2015-01-31)
As they age, Sprague-Dawley (SD) rats develop elevated systolic blood pressure associated with impaired baroreflex sensitivity (BRS) for control of heart rate. We previously demonstrated in young hypertensive (mRen2)27 rats that impaired BRS is restored by CB1 cannabinoid receptor blockade...
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