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Rebecca Beveridge et al.
Analytical chemistry, 86(22), 10979-10991 (2014-10-30)
In the past decade, mass spectrometry (MS) coupled with electrospray ionization (ESI) has been extensively applied to the study of intact proteins and their complexes, often without the requirement of labels. Solvent conditions (for example, pH, ionic strength, and concentration)
Robyn D Warner et al.
Meat science, 108, 155-164 (2015-07-15)
The aim of this experiment was to use metabolomic techniques to investigate the energy metabolism in lamb M. longissimus thoracis et lumborum subjected to very fast chilling (VFC) post-mortem. The tissue was prepared by 2 different operators and subjected to
Christine Li Ling Lau et al.
Fundamental & clinical pharmacology, 29(4), 404-416 (2015-05-27)
Tyrosine kinase inhibitor sunitinib (used in GIST, advanced RCC, and pancreatic neuroendocrine tumors) undergoes CYP3A4 metabolism and is an ABCB1B and ABCG2 efflux transporters substrate. We assessed the pharmacokinetic interaction with ibuprofen (an NSAID used by patients with cancer) in
Justyna A Wojdyla et al.
The Journal of biological chemistry, 290(44), 26675-26687 (2015-09-12)
TolR is a 15-kDa inner membrane protein subunit of the Tol-Pal complex in Gram-negative bacteria, and its function is poorly understood. Tol-Pal is recruited to cell division sites where it is involved in maintaining the integrity of the outer membrane.
Timur Baygildiev et al.
European journal of mass spectrometry (Chichester, England), 21(5), 733-738 (2015-11-19)
A new sensitive rapid-separation liquid chromatography tandem mass spectrometry approach for the determination of thiodiglycolic acid (TDGA) in urine has been developed. The use of the "dilute-and-shoot" method helps to shorten the sample preparation stage and provides a sensitive and
Sharon Lai-Fung Chan et al.
Current Alzheimer research, 12(5), 434-438 (2015-05-06)
We report herein the synthesis and application of a novel tetradentate ruthenium(II) complex 1 containing a tris(2-pyridylmethyl)amine (tpa) ligand as an inhibitor of β-amyloid fibrillogenesis. [Ru(tpa)(bt)]ClO(4) 1 (bt =2-acetylbenzo[b]thiophene-3-olate) showed significant inhibition of Aβ(1-40) peptide aggregation in vitro, which was
Yan Gao et al.
Marine pollution bulletin, 96(1-2), 226-234 (2015-06-02)
In this study, 54 sediment samples were collected from the Pearl River Estuary (PRE) in Southern China to study the spatial distribution and patterns of PFASs in this region. PFAS concentrations in the sediment samples ranged from nd (below detection
Marion Girod et al.
The Analyst, 139(21), 5523-5530 (2014-09-10)
Improvement of the fragmentation specificity may streamline data processing of bottom-up proteomic experiments by drastically reducing either the amount of MS/MS data to process in the discovery phase or the detection of interfering signals in targeted quantification. Photodissociation at appropriate
Adrian Weisz et al.
Journal of chromatography. A, 1380, 120-129 (2015-01-17)
Three low-level subsidiary color impurities (A, B, and C) often present in batches of the color additive D&C Red No. 33 (R33, Acid Red 33, Colour Index No. 17200) were separated from a portion of R33 by spiral high-speed counter-current
Kui Yang et al.
Analytical and bioanalytical chemistry, 407(17), 5199-5210 (2015-03-31)
Diglycerides play a central role in lipid metabolism and signaling in mammalian cells. Although diacylglycerol molecular species comprise the majority of cellular diglycerides that are commonly measured using a variety of approaches, identification of extremely low abundance vinyl ether diglycerides
Simon Puttick et al.
Molecular imaging, 14, 385-399 (2015-07-29)
Noninvasive imaging is a critical technology for diagnosis, classification, and subsequent treatment planning for patients with glioblastoma. It has been shown that the EphA2 receptor tyrosine kinase (RTK) is overexpressed in a number of tumors, including glioblastoma. Expression levels of
Rushd Khalaf et al.
Journal of chromatography. A, 1397, 11-18 (2015-05-03)
The purification of therapeutic peptides is most often performed using one or more reversed phase chromatography steps. This ensures high purities while keeping the costs of purification under control. In this paper, a doped reversed phase chromatographic material is tested
Jelena Maksić et al.
Journal of chromatographic science, 53(5), 680-686 (2014-10-11)
In this paper, chromatographic analysis of active substance olopatadine hydrochloride, which is used in eye drops as antihistaminic agent, and its impurity E isomer by hydrophilic interaction liquid chromatography (HILIC) and application of design of experiments (DoE) methodology are presented.
Simone Palini et al.
Reproductive biomedicine online, 29(1), 65-71 (2014-05-13)
Ovarian stimulation is used with IVF/intracytoplasmic sperm injection (ICSI) cycles to obtain multiple oocytes and improve pregnancy rates; however, it also induces perturbation in the oxidant-antioxidant balance leading to oxidation stress. The present study monitored the plasma antioxidant status in
Xiao-Lin Hou et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 962, 20-29 (2014-06-03)
A simple, sensitive and reliable analytical method was developed for the simultaneous determination of 38 veterinary drugs (18 sulfonamides, 11 quinolones and 9 benzimidazoles) and 8 metabolites of benzimidazoles in bovine milk by ultra high performance liquid chromatography-positive electrospray ionization
Christopher A Quinto et al.
Nanoscale, 7(29), 12728-12736 (2015-07-15)
Superparamagnetic iron oxide (SPIO) nanoparticles have the potential for use as a multimodal cancer therapy agent due to their ability to carry anticancer drugs and generate localized heat when exposed to an alternating magnetic field, resulting in combined chemotherapy and
Stefan Neubauer et al.
Analytical and bioanalytical chemistry, 407(22), 6681-6688 (2015-07-15)
Absolute quantification of intracellular coenzyme A (CoA), coenzyme A disulfide, and short-chain acyl-coenzyme A thioesters was addressed by developing a tailored metabolite profiling method based on liquid chromatography in combination with tandem mass spectrometric detection (LC-MS/MS). A reversed phase chromatographic
Jeanne Mendell et al.
Clinical drug investigation, 35(7), 447-453 (2015-06-13)
The oral direct factor Xa inhibitor edoxaban is a P-glycoprotein (P-gp) substrate metabolized via carboxylesterase-1 and cytochrome P450 (CYP) 3A4/5. The effect of rifampin-induced induction of P-gp and CYP3A4/5 on transport and metabolism of edoxaban through the CYP3A4/5 pathway was
Frederik Lermyte et al.
Journal of the American Society for Mass Spectrometry, 26(7), 1068-1076 (2015-04-12)
Non-dissociative charge reduction, typically considered to be an unwanted side reaction in electron transfer dissociation (ETD) experiments, can be enhanced significantly in order to reduce the charge state of intact protein complexes to as low as 1+ on a commercially
Xiaomei Yang et al.
The Science of the total environment, 512-513, 406-414 (2015-02-04)
Repeated applications of glyphosate may contaminate the soil and water and threaten their quality both within the environmental system and beyond it through water erosion related processes and leaching. In this study, we focused on the transport of glyphosate and
Annika Kasten et al.
PloS one, 9(9), e108055-e108055 (2014-09-23)
Magnetic resonance imaging (MRI) using measurement of the transverse relaxation time (R2*) is to be considered as a promising approach for cell tracking experiments to evaluate the fate of transplanted progenitor cells and develop successful cell therapies for tissue engineering.
Sema Demirci Çekiç et al.
Analytica chimica acta, 865, 60-70 (2015-03-04)
A colourimetric sensor capable of simultaneously measuring oxidative status (OS) in terms of the hazard produced by reactive oxygen species (ROS) and antioxidant activity (AOA) in regard to ROS-scavenging ability of antioxidant compounds was developed. The coloured cationic semi-quinone derivatives
Ann Ran-Ran Qin et al.
Bioanalysis, 7(9), 1069-1079 (2015-06-04)
In early drug-discovery research, traditional techniques to analyze drug concentrations in tissues for bioanalytical needs include bead beaters and probe homogenization devices, but are not as effective for tough fibrous tissues. To prepare these tissues, the enzyme collagenase was used
Anita Aranyi et al.
Journal of chromatography. A, 1387, 123-133 (2015-02-18)
The direct separation of the enantiomers of 1-(α-aminoarylmethyl)-2-naphthol, 1-(α-aminoalkyl)-2-naphthol, 2-(α-aminoarylmethyl)-1-naphthol analogues and 2-(1-amino-2-methylpropyl)-1-naphthol) was investigated in supercritical fluid chromatography. Five commercially available chiral stationary phases based on immobilized polysaccharide chiral selectors (Chiralpak IA, IB, IC, ID and IE) were evaluated.
Sabine Navis et al.
Aquatic toxicology (Amsterdam, Netherlands), 159, 176-183 (2014-12-30)
Although Daphnia magna is a key species in many lentic freshwater ecosystems and is commonly used as model organism in ecology and ecotoxicology, very little is known about the effects of chemicals on their dormant life stages. Dormant eggs (ephippia)
Zdenka Veprikova et al.
Journal of agricultural and food chemistry, 63(29), 6633-6643 (2015-07-15)
Mycotoxin contamination of dietary supplements represents a possible risk for human health, especially in the case of products intended for people suffering from certain health conditions. The aim of this study was to assess the extent of this problem based
Yuchao Xie et al.
Xenobiotica; the fate of foreign compounds in biological systems, 45(10), 921-929 (2015-04-15)
1. It has been suggested that acetaminophen (APAP)-protein adducts can be measured in circulation to diagnose APAP-induced liver injury. However, the full-time course of plasma adducts has not been studied specifically in early-presenting overdose patients. In fact, surprisingly little work
Ningfeng Tang et al.
Alcoholism, clinical and experimental research, 38(11), 2722-2730 (2014-11-26)
Fetal alcohol spectrum disorder, the leading known cause of mental retardation, is caused by alcohol exposure during pregnancy. One mechanism of ethanol (EtOH) teratogenicity is the disruption of the functions of L1 cell adhesion molecule (L1). These functions include enhancement
Nuno M M Moura et al.
Chemical communications (Cambridge, England), 48(49), 6142-6144 (2012-05-12)
The reaction of 2-formyl-5,10,15,20-tetraphenylporphyrin with aryl methyl ketones and ammonium acetate, in the presence of La(OTf)(3), affords benzoporphyrins and 2-(2,6-diarylpyridin-4-yl)porphyrins. This methodology was used to prepare, for the first time, a 2-(2,2':6',2''-terpyridin-4'-yl)porphyrin. The structures of two 2-(2,6-diarylpyridin-4-yl)porphyrins were confirmed by
Joanna Hajduk et al.
Clinica chimica acta; international journal of clinical chemistry, 448, 174-181 (2015-07-15)
An alternative bioinformatics approach based on fuzzy theory statistics and linear discriminant analysis is proposed for the interpretation of MALDI MS spectra in peptide profiling. When applied, the methodology enables the establishment of a reproducible plasma preparation protocol appropriate for
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