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73594

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Nicola Mastroianni et al.
Journal of chromatography. A, 1360, 93-99 (2014-08-12)
The increasing, generalized consumption of alcohol, especially among young people, generates great concern in our society due to its negative consequences on public health and safety. Besides the traditional, official methods employed for estimation of alcohol consumption, the monitoring of...
Jin Woo Park et al.
Archives of pharmacal research, 37(12), 1560-1569 (2013-11-21)
Risedronate is widely used clinically to treat osteoporosis, Paget's disease, hypercalcemia, bone metastasis, and multiple myeloma. However, its oral efficacy is restricted due to its low bioavailability and severe gastrointestinal adverse effects. This study was designed to evaluate the effect...
Haoyue Zhang et al.
Molecular genetics and metabolism, 114(2), 123-128 (2014-12-03)
Mucopolysaccharidoses (MPS) are complex storage disorders that result in the accumulation of glycosaminoglycans (GAGs) in urine, blood, brain and other tissues. Symptomatic patients are typically screened for MPS by analysis of GAG in urine. Current screening methods used in clinical...
Lakkireddy Prakash et al.
Journal of chromatographic science, 53(1), 122-126 (2014-05-20)
Nicorandil is a potent drug with a dual mechanism of action which results in its wide application in treating angina patients. Since the literature review showed no single preparative method for isolation and liquid chromatography-mass spectrometry (LC-MS) compatible [high-performance liquid...
James E McGuffey et al.
PloS one, 9(7), e101816-e101816 (2014-07-12)
Tobacco use is a major contributor to premature morbidity and mortality. The measurement of nicotine and its metabolites in urine is a valuable tool for evaluating nicotine exposure and for nicotine metabolic profiling--i.e., metabolite ratios. In addition, the minor tobacco...
J Scott Boone et al.
Journal of chromatography. A, 1345, 68-77 (2014-05-06)
A trace analytical method was developed for the determination of seventeen specific perfluorinated chemicals (PFCs) in environmental and drinking waters. The objectives were to optimize an isotope-dilution method to increase the precision and accuracy of the analysis of the PFCs...
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...
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...
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...
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...
Marcello Locatelli et al.
Journal of chromatography. A, 1388, 79-86 (2015-02-24)
This paper reports the validation of a quantitative high performance liquid chromatography-photodiode array (HPLC-PDA) method for the simultaneous analysis, in mouse plasma, of eperisone hydrochloride and paracetamol by protein precipitation using zinc sulphate-methanol-acetonitrile. The analytes were resolved on a Gemini...
Karl B Scheidweiler et al.
Analytical and bioanalytical chemistry, 407(3), 883-897 (2014-09-17)
Clandestine laboratories constantly produce new synthetic cannabinoids to circumvent legislative scheduling efforts, challenging and complicating toxicological analysis. Sundstrom et al. (Anal Bioanal Chem 405(26):8463-8474, [9]) and Kronstrand et al. (Anal Bioanal Chem 406(15):3599-3609, [10]) published nontargeted liquid chromatography, high-resolution, quadrupole/time-of-flight...
Kuniko Mitamura et al.
Steroids, 85, 18-29 (2014-04-12)
A liquid chromatography (LC)/electrospray ionization (ESI)-mass spectrometry (MS) method for the direct determination of eighteen tetrahydrocorticosteroid sulfates in human urine has been developed. The analytes were 3- and 21-monosulfates and 3,21-disulfates of tetrahydrocortisol (THF), tetrahydrocortisone (THE), tetrahydro-11-deoxycortisol (THS), and their...
Ann-Charlotte Almstrand et al.
Analytical biochemistry, 474, 50-58 (2015-01-13)
Chemical reactions with unsaturated phospholipids in the respiratory tract lining fluid have been identified as one of the first important steps in the mechanisms mediating environmental ozone toxicity. As a consequence of these reactions, complex mixtures of oxidized lipids are...
He Zhu et al.
Journal of pharmaceutical and biomedical analysis, 107, 119-124 (2015-01-16)
Polyphyllin I (PPI), one of the steroidal saponins in Paris polyphylla, is a promising natural anticancer candidate. Although the anticancer activity of PPI has been well demonstrated, information regarding the pharmacokinetics and bioavailability is limited. In this study, a series...
K Maráková et al.
Die Pharmazie, 69(9), 663-668 (2014-10-03)
The advanced hyphenated method based on capillary electrophoresis (CE) on-line combined with electrospray ionization (ESI) and tandem mass spectrometry (MS/MS, here triple quadrupole, QqQ) was developed and applied in pharmaceutical analysis in this work. Under the optimized CE separation (background...
Albert Barroso et al.
Analytica chimica acta, 854, 169-177 (2014-12-07)
In this study, the classical semiempirical relationships between the electrophoretic mobility and the charge-to-mass ratio (me vs. q/M(α)) were used to model the migration behaviour of peptides and glycopeptides originated from the digestion of recombinant human erythropoietin (rhEPO), a biologically...
Lucie Nováková et al.
Analytica chimica acta, 853, 637-646 (2014-12-04)
The conditions for the analysis of selected doping substances by UHPSFC-MS/MS were optimized to ensure suitable peak shapes and maximized MS responses. A representative mixture of 31 acidic and basic doping agents was analyzed, in both ESI+ and ESI- modes....
K Puzio et al.
Journal of chromatography. A, 1361, 1-8 (2014-08-26)
Three molecularly imprinted polymers (MIPs) have been synthesized in order to bind efficiently glyphosate (GLY) in natural waters (mineral and underground). Since the target analyte is polar and hydrophilic, electrostatic interactions and hydrogen bonds have been favored with two templates...
Darina Lankova et al.
Analytica chimica acta, 854, 61-69 (2014-12-07)
In the present study, a novel analytical approach for the simultaneous determination of 27 brominated flame retardants (BFRs), namely polybrominated diphenyl ethers (PBDEs), isomers of hexabromocyclododecane (HBCD), tetrabromobisphenol A (TBBPA) and several novel BFRs (NBFRs), together with 18 perfluoroalkyl substances...
Sophie Lissalde et al.
The Science of the total environment, 488-489, 188-196 (2014-05-17)
This study focuses on how Polar Organic Chemical Integrative Samplers (POCIS) work in real environmental conditions. A selection of 23 polar pesticides and 8 metabolites were investigated by exposure of triplicates of integrative samplers in two rivers in France for...
S J Lupton et al.
Journal of agricultural and food chemistry, 62(30), 7577-7585 (2014-07-16)
Heavy sows (n = 126) were treated with penicillin G procaine at a 5× label dose (33 000 IU/kg) for 3 consecutive days by intramuscular (IM) injection using three patterns of drug administration. Treatments differed by injection pattern and injection volume....
Lucas Willmann et al.
Analytical and bioanalytical chemistry, 407(13), 3555-3566 (2015-03-05)
Modified nucleosides derived from the RNA metabolism constitute an important chemical class, which are discussed as potential biomarkers in the detection of mammalian breast cancer. Not only the variability of modifications, but also the complexity of biological matrices such as...
Nagappanpillai Adarsh et al.
Analytical chemistry, 86(18), 9335-9342 (2014-08-26)
With an objective to develop optical probes for biologically important anions and neutral molecules, we synthesized three novel NIR absorbing aza-BODIPY derivatives, 3a-3c, and have systematically tuned their photophysical properties by changing the peripheral substitution. A profound red-shift was observed...
Eshwar Jagerdeo et al.
Journal of analytical toxicology, 39(2), 83-88 (2014-11-30)
The abuse of gamma-hydroxybutyric acid (GHB) and its suspicion in cases of suspected drug-facilitated sexual assault is of keen interest to forensic toxicology laboratories. This paper reports an extraction, separation and detection procedure for GHB in hair utilizing a combination...
Nils Tore Vethe et al.
Therapeutic drug monitoring, 36(1), 108-118 (2013-09-26)
The development of biomarkers describing the individual responses to the immunosuppressant mycophenolic acid (MPA) has focused on the target enzyme activity [inosine 5'-monophosphate dehydrogenase (IMPDH)]. An extended strategy is to quantify the metabolic consequences of IMPDH inhibition. The aim of...
Jessica Oenarto et al.
Archives of biochemistry and biophysics, 560, 59-72 (2014-07-09)
This study characterizes the expression of the osmolyte transporters betaine/γ-amino-n-butyric acid (GABA) transporter (BGT-1), the taurine transporter (TauT) and the sodium-dependent myo-inositol transporter (SMIT) in various rat brain cells in culture and in rat and human cerebral cortex in situ....
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...
Taylor A Choi et al.
Journal of pharmaceutical sciences, 104(5), 1832-1838 (2015-03-03)
The hydroxypyridinonate ligand 3,4,3-LI(1,2-HOPO) is currently under development for radionuclide chelation therapy. The preclinical characterization of this highly promising ligand comprised the evaluation of its in vitro properties, including microsomal, plasma, and gastrointestinal fluid stability, cytochrome P450 inhibition, plasma protein...
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