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Jef Stappaerts et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 90, 1-7 (2015-01-17)
The aim of this study was to evaluate the intestinal disposition of abiraterone acetate, an ester prodrug of the anticancer agent abiraterone. Stability of the prodrug and solubility and dissolution characteristics of both abiraterone and abiraterone acetate were monitored in
Joanne D Du et al.
International journal of pharmaceutics, 471(1-2), 358-365 (2014-06-01)
Targeted drug delivery to the buccal mucosa offers distinct advantages over oral delivery to the gastrointestinal tract including by-passing hepatic first-pass metabolism. However, the buccal route is often limited by low bioavailability, low drug loading and reduced residence time due
Paweł Kubica et al.
Analytical and bioanalytical chemistry, 407(5), 1505-1512 (2014-12-05)
The method for the determination of acesulfame-K, saccharine, cyclamate, aspartame, sucralose, alitame, neohesperidin dihydrochalcone, neotame and five common steviol glycosides (rebaudioside A, rebaudioside C, steviol, steviolbioside and stevioside) in soft and alcoholic beverages was developed using high-performance liquid chromatography and
Wei Liu et al.
PloS one, 10(4), e0122366-e0122366 (2015-04-08)
Vasicine (VAS), a potential natural cholinesterase inhibitor, exhibited promising anticholinesterase activity in preclinical models and has been in development for treatment of Alzheimer's disease. This study systematically investigated the in vitro and in vivo metabolism of VAS in rat using
Tae-Kang Kim et al.
Molecular and cellular endocrinology, 404, 1-8 (2014-08-30)
Melatonin and its metabolites including 6-hydroxymelatonin (6(OH)M), N(1)-acetyl-N(2)-formyl-5-methoxykynuramine (AFMK) and 5-methoxytryptamine (5MT) are endogenously produced in human epidermis. This production depends on race, gender and age. The highest melatonin levels are in African-Americans. In each racial group they are highest
R M de Ferrars et al.
British journal of pharmacology, 171(13), 3268-3282 (2014-03-08)
Anthocyanins are phytochemicals with reported vasoactive bioactivity. However, given their instability at neutral pH, they are presumed to undergo significant degradation and subsequent biotransformation. The aim of the present study was to establish the pharmacokinetics of the metabolites of cyanidin-3-glucoside
Yu Liang et al.
Analytica chimica acta, 900, 83-89 (2015-11-18)
The poly (glycidyl methacrylate-co-poly (ethylene glycol) diacrylate) monoliths modified with gold nanoparticles, with advantages of enhanced reactive sites, good hydrophilicity and facile modification, were prepared as the matrix, followed by variable functionalization with cysteine and PNGase F for glycopeptide enrichment
Toraj Ahmadi-Jouibari et al.
Journal of pharmaceutical and biomedical analysis, 94, 145-151 (2014-03-04)
A novel, rapid, simple and sensitive dispersive liquid-liquid microextraction method based on the solidification of floating organic drop (DLLME-SFO) combined with high-performance liquid chromatography-ultraviolet detection (HPLC-UV) was used to determine amphetamine and methamphetamine in urine samples. The factors affecting the
Triana Lobatón et al.
Inflammatory bowel diseases, 21(1), 71-78 (2014-12-18)
The role of Aeromonas species as an enteropathogen in patients with and without inflammatory bowel disease (IBD) is still debated. The aim was to explore the significance of positive Aeromonas stool cultures in IBD and patients without IBD. Observational retrospective
Tarek S Belal et al.
Journal of AOAC International, 97(6), 1514-1518 (2015-01-30)
A novel, simple, direct, and selective stability- indicating GC/MS procedure was developed for the determination of the anti-ischemic drug trimetazidine dihydrochloride (TMZ) in the presence of two of its related substances (potential impurities), namely, 2,3,4-trimethoxybenzyl alcohol (T1) and 2,3,4-trimethoxybenzaldehyde (T2).
Gaofei Zhang et al.
Journal of pharmaceutical and biomedical analysis, 94, 210-214 (2014-03-19)
A new tadalafil analogue was detected and isolated from a dietary supplement, the structure was elucidated by means of nuclear magnetic resonance (NMR) and mass spectroscopy. The compound was determined to be diethylaminopretadalafil, which might be derived from a precursor
Chenrong Huang et al.
Journal of chromatographic science, 52(7), 636-640 (2013-07-11)
A novel method has been developed for the determination of cefaclor in human plasma by ultra-performance liquid chromatography combined with tandem mass spectrometry (UPLC-MS-MS). The plasma was treated by a single step of protein precipitation with acetonitrile. The chromatographic separation
Cristiano S Funari et al.
Journal of chromatography. A, 1354, 34-42 (2014-06-24)
It is now recognized that analytical chemistry must also be a target for green principles, in particular chromatographic methods which typically use relatively large volumes of hazardous organic solvents. More generally, high performance liquid chromatography (HPLC) is employed routinely for
Péter Vajda et al.
Journal of chromatography. A, 1308, 139-143 (2013-08-21)
The surface excess isotherms of methanol, ethanol, 2-propanol and acetonitrile from liquid carbon dioxide on a silica adsorbent were measured, using the minor disturbance method. The minor disturbance peaks - or system peaks - of each organic modifier were recorded
Gina M Hilton et al.
Toxicology, 329, 80-87 (2015-01-20)
Toxicoproteomics is a developing field that utilizes global proteomic methodologies to investigate the physiological response as a result of adverse toxicant exposure. The aim of this study was to compare the protein secretion profile in lung bronchoalveolar lavage fluid (BALF)
Alberto De Petris et al.
The journal of physical chemistry. B, 119(5), 1919-1929 (2015-01-13)
The iron(III) protoporphyrin IX complex with imidazole, a biologically relevant ligand, occupying an axial position, has been studied by infrared multiple photon dissociation (IRMPD) spectroscopy. The complex has been delivered in gas-phase by electrospray ionization (ESI), mass selected in an
Liang Ma et al.
Cell research, 25(1), 24-38 (2014-10-25)
Cells communicate with each other through secreting and releasing proteins and vesicles. Many cells can migrate. In this study, we report the discovery of migracytosis, a cell migration-dependent mechanism for releasing cellular contents, and migrasomes, the vesicular structures that mediate
Elaine Marley et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 32(12), 2131-2137 (2015-10-31)
A method is reported for the analysis of sterigmatocystin in various food and feed matrices using a commercial sterigmatocystin immunoaffinity column (IAC) for sample clean-up prior to HPLC analysis by UV with mass spectrometric detection (LC-MS/MS). Cereals (wheat, oats, rye
Vinod Kumar Vashistha et al.
Bioanalysis, 7(19), 2477-2488 (2015-10-13)
L-carnitine is an over the counter drug, used to treat disorders like cardiomyopathy, skeletal myopathy, hypoglycemia and hyperammonemia. Preparations containing D-carnitine should be avoided by dialysis patients because it has toxic influence on biochemical processes by inhibiting the carnitine acetyltransferase.
Jie Liu et al.
Virus genes, 49(3), 400-416 (2014-08-12)
Porcine circovirus type 2 (PCV2) has been identified as the essential causal agent of post-weaning multisystemic wasting syndrome, which has spread worldwide. To discover cellular protein responses of PK-15 cells to PCV2 infection, two-dimensional liquid chromatography-tandem mass spectrometry (MS) coupled
Yuanhong Shan et al.
Journal of chromatography. A, 1375, 101-109 (2014-12-17)
To develop a novel hybrid monolithic column based on pentafluorobenzyl imidazolium bromide ionic liquid, a new ionic liquid monomer was synthesized from 1-vinylimidazole and pentafluorobenzyl bromide. By employing a facile one-step copolymerization of polyhedral-oligomeric-silsesquioxane-type (POSS) cross-linking agent and the home-made
Ellen P Preece et al.
Environmental monitoring and assessment, 187(2), 12-12 (2015-01-27)
Ingestion of water contaminated with the cyanotoxin, microcystin (MC), can pose serious health risks to humans. MC is also known to accumulate in seafood; however, this exposure pathway is much less understood. A fundamental element of this uncertainty is related
Julieta Gradinaru et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 71, 35-45 (2015-02-17)
A rapid method for the simultaneous determination of the in vitro activity of the 10 major human liver UDP-glucuronosyltransferase (UGT) enzymes was developed based on the cocktail approach. Specific substrates were first selected for each UGT: etoposide for UGT1A1, chenodeoxycholic
Judit Marsillach et al.
PloS one, 9(10), e110054-e110054 (2014-10-22)
Homocysteinylation of lysine residues by homocysteine thiolactone (HCTL), a reactive homocysteine metabolite, results in protein aggregation and malfunction, and is a well-known risk factor for cardiovascular, autoimmune and neurological diseases. Human plasma paraoxonase-1 (PON1) and bleomycin hydrolase (Blmh) have been
Xiangjun Qiu et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 980, 16-19 (2015-01-16)
A sensitive and rapid ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method was developed to determine glimepiride (GPD) and fluoxetine (FLU) in human plasma using diazepam as the internal standard (IS) simultaneously. The presented method used an Acquity UPLC
Di Xiao et al.
Journal of clinical microbiology, 52(8), 3038-3043 (2014-06-13)
The typing of Mycoplasma pneumoniae mainly relies on the detection of nucleic acid, which is limited by the use of a single gene target, complex operation procedures, and a lengthy assay time. Here, matrix-assisted laser desorption ionization-time of flight mass
A Patnaik et al.
British journal of cancer, 111(2), 272-280 (2014-06-06)
Ficlatuzumab, a humanised hepatocyte growth factor (HGF) IgG1κ inhibitory monoclonal antibody, was evaluated for recommended phase II dose (RP2D), safety, pharmacokinetics (PKs), antidrug antibody (ADA), pharmacodynamics (PDs) and antitumour activity as monotherapy or combined with erlotinib. Patients with solid tumours
Rafael Deminice et al.
The Journal of nutritional biochemistry, 26(4), 391-397 (2015-02-05)
To examine the effects of creatine (Cr) supplementation on liver fat accumulation in rats fed a choline-deficient diet. Twenty-four rats were divided into 3 groups of 8 based on 4 weeks of feeding an AIN-93 control diet (C), a choline-deficient
Gustavo Arruda Bezerra et al.
PloS one, 9(5), e97015-e97015 (2014-05-29)
Plant lectins, especially those purified from species of the Leguminosae family, represent the best-studied group of carbohydrate-binding proteins. Lectins purified from seeds of the Diocleinae subtribe exhibit a high degree of sequence identity notwithstanding that they show very distinct biological
Tatsuyuki Kanamori et al.
Drug testing and analysis, 7(4), 341-345 (2015-01-21)
The metabolism of (1-(5-fluoropentyl)-1H-indol-3-yl)(2,2,3,3-tetramethylcyclopropyl)methanone (XLR-11), a novel synthetic cannabinoid, was studied using a HepaRG cell culture. The HepaRG cells were incubated with the drug for 48 hours and the metabolites were extracted from the culture medium by liquid-liquid extraction. The
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