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Shahid Ullah et al.
Analytical chemistry, 87(22), 11553-11560 (2015-10-28)
An analytical method based on high-performance liquid chromatography coupled to quadrupole tandem mass spectrometry was developed for the quantitative determination of four phosphatidylcholines (PCs) in human exhaled breath particles. Analytes were conveniently collected on an electrostatic polymer filter and extracted
Sandra Varum et al.
Cell stem cell, 24(4), 637-653 (2019-04-06)
Increasing evidence suggests that cancer cells highjack developmental programs for disease initiation and progression. Melanoma arises from melanocytes that originate during development from neural crest stem cells (NCSCs). Here, we identified the transcription factor Yin Yang 1 (Yy1) as an
Gilles Provencher et al.
Journal of chromatography. A, 1348, 97-104 (2014-05-20)
Bisphenol A (BPA) and triclosan (TCS) are ubiquitous environmental phenols exhibiting endocrine disrupting activities that may be involved in various health disorders in humans. There is a need to measure separately free forms and conjugated metabolites because only the former
Ahilanandan Dushianthan et al.
Respiratory research, 15, 128-128 (2014-11-08)
Acute respiratory distress syndrome (ARDS) is a life-threatening critical illness, characterised by qualitative and quantitative surfactant compositional changes associated with premature airway collapse, gas-exchange abnormalities and acute hypoxic respiratory failure. The underlying mechanisms for this dysregulation in surfactant metabolisms are
Holly D Cox et al.
Drug testing and analysis, 7(1), 31-38 (2014-09-12)
AOD9604 is a peptide consisting of the C-terminal fragment of human growth hormone from amino acids 177-191 with an additional tyrosine residue at the N-terminus of the peptide. It is reported to mimic the lipolytic properties of growth hormone without
Luise Oemisch et al.
Journal of chromatography. A, 1370, 17-24 (2014-12-03)
Many studies in pharmacology, toxicology and environmental science require a method for determining the freely dissolved concentration of a target substance. A recently developed tool for this purpose is equilibrium passive sampling with polymeric materials. However, this method has rarely
Rachel Y Barnett et al.
Journal of analytical toxicology, 38(8), 589-591 (2014-09-14)
Designer drugs appear to be increasing in popularity because of the ease of obtaining these constituents, the lack of ability to identify the substance(s) in routine drug screening, the appeal of the drug(s) being 'safe' due to them being marketed
Przemyslaw Mielczarek et al.
Journal of chromatography. A, 1389, 96-103 (2015-03-10)
The metabolic pathways of selegiline (a drug used for the treatment of early-stage Parkinson's disease) were analyzed by electrochemical oxidation with application of the flow electrochemical cell consisting of three electrodes (ROXY™, Antec, the Netherlands). Two types of working electrodes
Christiane Auray-Blais et al.
Clinica chimica acta; international journal of clinical chemistry, 436, 249-255 (2014-06-10)
Creatine synthesis and transport disorders, Triple H syndrome and ornithine transcarbamylase deficiency are treatable inborn errors of metabolism. Early screening of patients was found to be beneficial. Mass spectrometry analysis of specific urinary biomarkers might lead to early detection and
Janet Sze-Jing Cheung et al.
International journal of hygiene and environmental health, 230, 113623-113623 (2020-09-16)
There are concerns in Yellowknife, Northwest Territories, Canada, about arsenic exposure due to past mining operations, particularly the former Giant Mine. The objective of this study was to characterize the risk of arsenic exposure and associated risk factors among the
Erin Gemperline et al.
Analytical methods : advancing methods and applications, 6(16), 6389-6396 (2015-02-11)
(RS)-3-(2-carboxypiperazin-4-yl)-propyl-1-phosphonic acid (CPP) is a competitive antagonist of the N-methyl-D-aspartate (NMDA) receptor and is routinely used with rodent models to investigate the role of NMDA receptors in brain function. This highly polar compound is difficult to separate from biological matrices.
Shuang Yang et al.
Journal of pharmaceutical and biomedical analysis, 109, 177-183 (2015-03-18)
Fagomine, 1-deoxynojirimycin (DNJ) and 1,4-dideoxy-1,4-imino-d-arabinitol (DAB) are the major bioactive constituents in the active fraction of alkaloids from the traditional Chinese medicine mulberry twig (Ramulus Mori, Chinese name Sang Zhi), which has a strong activity on α-glucosidase in vitro and
Ayman M Atta et al.
Molecules (Basel, Switzerland), 20(1), 1244-1261 (2015-01-17)
This work presents a new method to prepare poly(sodium acrylate) magnetite composite nanoparticles. Core/shell type magnetite nanocomposites were synthesized using sodium acrylate as monomer and N,N-methylenebisacrylamide (MBA) as crosslinker. Microemulsion polymerization was used for constructing core/shell structures with magnetite nanoparticles
Bhavin J Shastri et al.
Scientific reports, 6, 19126-19126 (2016-01-13)
Novel materials and devices in photonics have the potential to revolutionize optical information processing, beyond conventional binary-logic approaches. Laser systems offer a rich repertoire of useful dynamical behaviors, including the excitable dynamics also found in the time-resolved "spiking" of neurons.
Alexandre Janel et al.
Stem cells and development, 23(24), 2972-2982 (2014-07-24)
The systematic localization of chronic lymphocytic leukemia (CLL) B-cells in the bone marrow (BM), together with the ex vivo protective effect of stromal cells on their spontaneous apoptosis, both indicate a specific role of the BM microenvironment. In vivo, the
Yu Winston Wang et al.
Journal of biomedical optics, 23(4), 1-8 (2018-04-17)
Surface-enhanced Raman scattering (SERS) nanoparticles (NPs) are increasingly being engineered for a variety of disease-detection and treatment applications. For example, we have previously developed a fiber-optic Raman-encoded molecular imaging (REMI) system for spectral imaging of biomarker-targeted SERS NPs topically applied
Cheng-Kang Chiang et al.
PLoS genetics, 10(10), e1004695-e1004695 (2014-10-21)
The suprachiasmatic nucleus (SCN) acts as the central clock to coordinate circadian oscillations in mammalian behavior, physiology and gene expression. Despite our knowledge of the circadian transcriptome of the SCN, how it impacts genome-wide protein expression is not well understood.
Pengfei Jin et al.
Journal of pharmaceutical and biomedical analysis, 70, 151-157 (2012-07-13)
A simple, isocratic, and stability-indicating high-performance liquid chromatography (HPLC) method has been developed for the rapid determination of thiamine (VB(1)), niacinamide (VB(3)), pyridoxine (VB(6)), ascorbic acid (VC), pantothenic acid (VB(5)), riboflavin (VB(2)) and folic acid (VB(9)) in Vitamins with Minerals
Weihong Xu et al.
Applied and environmental microbiology, 80(14), 4153-4161 (2014-05-06)
The vast majority of microscopic life on earth consists of microbes that do not grow in laboratory culture. To profile the microbial diversity in environmental and clinical samples, we have devised and employed molecular probe technology, which detects and identifies
Hongxu Lu et al.
Journal of biomedical materials research. Part A, 100(9), 2507-2516 (2012-05-25)
Extracellular matrix (ECM) scaffolds derived from cultured cells have drawn increasing attention for use in tissue engineering. We have developed a method to prepare cultured cell-derived ECM scaffolds by combining three-dimensional cell culture, decellularization, and selective template removal. Cell-ECM-template complexes
Alan K Jarmusch et al.
Journal of pharmaceutical and biomedical analysis, 117, 11-17 (2015-09-05)
Ergot alkaloids are mycotoxins with an array of biological effects. With this study, we investigated for the first time the application of atmospheric pressure photoionization (APPI) as an ionization method for LC-MS analysis of ergot alkaloids, and compared its performance
Hasmik Keshishian et al.
Nature protocols, 12(8), 1683-1701 (2017-07-28)
Proteomic characterization of blood plasma is of central importance to clinical proteomics and particularly to biomarker discovery studies. The vast dynamic range and high complexity of the plasma proteome have, however, proven to be serious challenges and have often led
Ciceron Ayala-Orozco et al.
ACS nano, 8(6), 6372-6381 (2014-06-04)
Au nanoparticles with plasmon resonances in the near-infrared (NIR) region of the spectrum efficiently convert light into heat, a property useful for the photothermal ablation of cancerous tumors subsequent to nanoparticle uptake at the tumor site. A critical aspect of
Matt Hrapchak et al.
Journal of labelled compounds & radiopharmaceuticals, 57(12), 687-694 (2014-10-22)
Empagliflozin, (2S,3R,4R,5S,6R)-2-[4-chloro-3-[[4-[(3S)-oxolan-3-yl]oxyphenyl]methyl]phenyl]-6-(hydroxymethyl)oxane-3,4,5-triol was recently approved by the FDA for the treatment of chronic type 2 diabetes mellitus. Herein, we report the synthesis of carbon-13 and carbon-14 labeled empagliflozin. Carbon-13 labeled empagliflozin was prepared in five steps and in 34% overall
Brigitte Buscher et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1005, 30-38 (2015-10-16)
The aim of the presented investigation was to document challenges encountered during implementation and qualification of a method for bisphenol A (BPA) analysis and to develop and discuss precautions taken to avoid and to monitor contamination with BPA during sample
Neva B Watson et al.
Journal of immunology (Baltimore, Md. : 1950), 194(6), 2796-2809 (2015-02-15)
Virus-induced myositis is an emerging global affliction that remains poorly characterized with few treatment options. Moreover, muscle-tropic viruses often spread to the CNS, causing dramatically increased morbidity. Therefore, there is an urgent need to explore genetic factors involved in this
Stefan Harmsen et al.
Nature protocols, 12(7), 1400-1414 (2017-07-08)
The unique spectral signatures and biologically inert compositions of surface-enhanced resonance Raman scattering (SERRS) nanoparticles make them promising contrast agents for in vivo cancer imaging. Our SERRS nanoparticles consist of a 60-nm gold nanoparticle core that is encapsulated in a
Zheng Wang et al.
Analytica chimica acta, 725, 81-86 (2012-04-17)
A modified SBA-15 mesoporous silica material NH(2)-SBA-15 was synthesized successfully by grafting γ-aminopropyl-triethoxysilane. The material was characterized using transmission electron microscopy (TEM) and Fourier transform infrared/Raman (FT-IR/Raman) spectroscopy, and used for the first time in a flow injection on-line solid
F Munarin et al.
International journal of biological macromolecules, 72, 199-209 (2014-08-12)
Pectin-based biocomposite hydrogels were produced by internal gelation, using different hydroxyapatite (HA) powders from commercial source or synthesized by the wet chemical method. HA possesses the double functionality of cross-linking agent and inorganic reinforcement. The mineralogical composition, grain size, specific
Tejia Zhang et al.
Nature protocols, 11(4), 747-763 (2016-03-18)
Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are a recently discovered class of endogenous mammalian lipids with antidiabetic and anti-inflammatory effects. We previously identified 16 different FAHFA families, such as branched palmitic acid esters of hydroxy stearic acids
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