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606723

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M C Cela-Pérez et al.
Talanta, 135, 58-66 (2015-02-03)
A water compatible molecularly imprinted polymer (MIP), synthesized using theophylline (TPH) as dummy-template and acrylamide (AM) as functional monomer, has been employed as supporting material in matrix solid-phase dispersion combined with ultra performance liquid chromatography-photodiode array detection (MSPD-UPLC-PDA) for selective
Cormac McElhinney et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 32(12), 2101-2112 (2015-09-17)
An ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) multi-mycotoxin analytical method was developed to simultaneously identify and quantify 20 mycotoxins in grass silages, inclusive of mycotoxins that are currently regulated in European Union feeds. Extraction of mycotoxins from dried grass silages
Fang-fang Xu et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 990, 125-131 (2015-04-13)
In this study, a sensitive and rapid liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated to simultaneously determinate andrographolide (AP), dehydroandrographolide (DP), and neoandrographolide (NP) in plasma of beagle dogs after oral administration of Andrographis paniculata tablet (A.
Katayoun Mahdavi Ara et al.
Journal of food science and technology, 52(7), 4450-4458 (2015-07-04)
Essential oils and fatty acids of Descurainia sophia L. seed were obtained by supercritical CO2 extraction and steam distillation methods. The effect of different parameters such as pressure, temperature, modifier volume, dynamic and static extraction timeon the extraction yield were
V K Marothu et al.
Annales pharmaceutiques francaises, 73(4), 289-296 (2015-05-20)
Forced degradation study of paliperidone under hydrolytic, oxidative, thermal and photolytic stress conditions was conducted using HPLC. The drug was found to be labile under hydrolytic, oxidative and photolytic stress conditions; whereas, it was stable under dry heat stress conditions.
Alberto Martin et al.
The EMBO journal, 34(8), 1090-1109 (2015-03-12)
Lysyl oxidase-like 2 (LOXL2) is involved in a wide range of physiological and pathological processes, including fibrosis and tumor progression, implicating intracellular and extracellular functions. To explore the specific in vivo role of LOXL2 in physiological and tumor contexts, we
Eglal A Abdelaleem et al.
Journal of pharmaceutical and biomedical analysis, 114, 22-27 (2015-05-23)
Two chromatgraphic methods were developed for determination of Paracetamol (PCM) and Pamabrom (PAM) in presence of P-aminophenol (PAP) and Theophylline (THEO) as potential impurities of both drugs respectively. First method is HPTLC which depends on separation and quantitation of the
Yubin Li et al.
Nanotoxicology, 9(3), 344-355 (2014-07-02)
Toxicity of nanomaterials is one of the biggest challenges in their medicinal applications. Although toxicities of nanomaterials have been widely reported, the exact mechanisms of toxicities are still not well elucidated. Consequently, the exploration of approaches to attenuate toxicities of
Barbara Crone et al.
Metallomics : integrated biometal science, 7(7), 1189-1195 (2015-05-23)
cis-Diamminedichloroplatinum(II) (Cisplatin) is one of the most important and frequently used cytostatic drugs for the treatment of various solid tumors. Herein, a laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) method incorporating a fast and simple sample preparation protocol was developed for
Garrett R Ainslie et al.
The Journal of pharmacology and experimental therapeutics, 351(3), 576-584 (2014-09-26)
Dietary substances, including herbal products and citrus juices, can perpetrate interactions with conventional medications. Regulatory guidances for dietary substance-drug interaction assessment are lacking. This deficiency is due in part to challenges unique to dietary substances, a lack of requisite human-derived
Arumugam Parthasarathy et al.
Life sciences, 118(1), 15-26 (2014-12-03)
Aminoguanidine (AG), a well known inhibitor of advanced glycation end products, has been reported to attenuate cardiac hypertrophy and fibrosis. However, the underlying mechanism by which AG exerts its anti-fibrotic activity is not well understood. Reactive oxygen species (ROS) and
Kelsey Brooks et al.
Biology of reproduction, 92(2), 47-47 (2014-12-17)
Interferon tau (IFNT) is produced by the elongating conceptus in ruminants and is the maternal recognition of the pregnancy signal. Available evidence supports the idea that IFNT acts in a paracrine and autocrine manner to modulate expression of genes in
M J Hilhorst et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 965, 45-53 (2014-07-06)
A liquid chromatography-tandem mass spectrometry method is described for the quantitative determination of artemether (ART) and its metabolite dihydroartimisinin (DHA) in human plasma samples. Quantitation of ART and DHA in plasma is challenging due to the presence of malaria related
Levana G Amrock et al.
Anesthesiology, 122(1), 87-95 (2014-10-08)
Neonatal exposure to general anesthetics may pose significant neurocognitive risk. Human epidemiological studies demonstrate higher rates of learning disability among children with multiple, but not single, exposures to anesthesia. The authors employ a rat model to provide a histological correlate
C Preston Pugh et al.
Archives of biochemistry and biophysics, 564, 244-253 (2014-12-03)
The widely used anticoagulant Coumadin (R/S-warfarin) undergoes oxidation by cytochromes P450 into hydroxywarfarins that subsequently become conjugated for excretion in urine. Hydroxywarfarins may modulate warfarin metabolism transcriptionally or through direct inhibition of cytochromes P450 and thus, UGT action toward hydroxywarfarin
Renata Tupinambá Branquinho et al.
Journal of chromatographic science, 52(1), 19-26 (2012-12-19)
Simple and sensitive methods using high-performance liquid chromatography-diode array detection (HPLC-DAD) and ultraviolet (UV)-spectrophotometry were developed and compared to quantify lychnopholide (LYC) in poly-ε-caprolactone nanocapsules and to study its release kinetics. Both methods were validated concerning their specificity, linearity, limits
Yeonsue Jang et al.
In vitro cellular & developmental biology. Animal, 51(2), 142-150 (2014-11-02)
Bone marrow concentration (BMC) is the most recognized procedure to prepare mesenchymal stem cells for cartilage regeneration. However, bone marrow aspiration is highly invasive and results in low stem cell numbers. Recently, adipose tissue-derived stromal vascular fraction (AT-SVF) was studied
Naoyuki Nakada et al.
Xenobiotica; the fate of foreign compounds in biological systems, 45(9), 757-765 (2015-04-15)
1. Here, we elucidated the structure of metabolites of novel oral Janus kinase inhibitor ASP015K in rats and humans and evaluated the predictability of human metabolites using chimeric mice with humanized liver (PXB mice). 2. Rat biological samples collected after oral dosing
Na Liu et al.
Journal of agricultural and food chemistry, 63(28), 6297-6303 (2015-07-01)
A simple and sensitive method for the enantioselective determination of tebuconazole enantiomers in water and zebrafish has been established using supercritical fluid chromatography (SFC)-MS/MS. The effects of the chiral stationary phases, mobile phase, auto back pressure regulator (ABPR) pressure, column
Y G Zhao et al.
Marine pollution bulletin, 83(1), 148-154 (2014-04-30)
Surface sediment and biota were collected from 12 sampling sites - seven along the Pearl River Delta and five along the Hong Kong coastline. Perfluorinated compound (PFC) concentrations were detected using a high-performance-liquid-chromatogram-tandem-mass-spectrometry system. Analytical results indicated that the total
Hiroyasu Sakai et al.
Cell cycle (Georgetown, Tex.), 13(6), 1015-1029 (2014-02-21)
Wip1 (protein phosphatase Mg(2+)/Mn(2+)-dependent 1D, Ppm1d) is a nuclear serine/threonine protein phosphatase that is induced by p53 following the activation of DNA damage response (DDR) signaling. Ppm1d(-/-) mouse embryonic fibroblasts (MEFs) exhibit premature senescence under conventional culture conditions; however, little
Christian Görgens et al.
Analytical and bioanalytical chemistry, 407(18), 5365-5379 (2015-05-01)
In the field of LC-MS, reversed phase liquid chromatography is the predominant method of choice for the separation of prohibited substances from various classes in sports drug testing. However, highly polar and charged compounds still represent a challenging task in
Minjie Jiang et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 974, 126-130 (2014-12-03)
A rapid, sensitive and selective high-performance liquid chromatography-tandem mass spectrometric method (HPLC-MS) has been developed and validated for the simultaneous determination of 14-thienyl methylene matrine (TMM) and matrine (MT) in rat plasma in the present study. The analytes were separated
Kaliyaperumal Rekha et al.
Acta biologica Hungarica, 66(2), 179-191 (2015-06-18)
Phenolic contents, antioxidant and antimicrobial activities were determined by two samples from summer (June) and winter (December) seasons of Ligularia fischeri var. spiciformis Nakai. A total of 24 phenolic compounds were identified by ultra-performance liquid chromatography (UPLC) analysis. Myricetin (1964.35
Daniil Karnaushenko et al.
Advanced materials (Deerfield Beach, Fla.), 27(42), 6582-6589 (2015-09-24)
A novel method relying on strain engineering to realize arrays of on-chip-integrated giant magneto-impedance (GMI) sensors equipped with pick-up coils is put forth. The geometrical transformation of an initially planar layout into a tubular 3D architecture stabilizes favorable azimuthal magnetic
Ryo Kojima et al.
International journal of pharmaceutics, 492(1-2), 20-27 (2015-07-15)
The objective of this study was to elucidate the release and absorption mechanisms of tacrolimus loaded into microspheres composed of poly(lactic-co-glycolic acid) (PLGA) and/or polylactic acid (PLA). Tacrolimus-loaded microspheres were prepared by the o/w emulsion solvent evaporation method. The entrapment
Bart Claeys et al.
International journal of pharmaceutics, 477(1-2), 244-250 (2014-12-03)
The influence of several dicarboxylic acids on the release characteristics of polyurethane tablets with a high drug load was investigated. Mixtures of diprophylline (Dyph) and thermoplastic polyurethane (TPUR) (ratio: 50/50, 65/35 and 75/25 wt.%) were hot-melt extruded and injection molded
Hai-Lian Shi et al.
World journal of gastroenterology, 21(16), 4852-4863 (2015-05-07)
To determine the molecular mechanisms of Shugan decoction (SGD) in the regulation of colonic motility and visceral hyperalgesia (VHL) in irritable bowel syndrome (IBS). The chemical compounds contained in SGD were measured by high-performance liquid chromatography. A rat model of
Dan Lin et al.
Journal of pharmaceutical and biomedical analysis, 117, 173-177 (2015-09-12)
To establish a rapid and sensitive ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method for the determination of concentration of nintedanib and its metabolite BIBF 1202 in rat plasma. The nintedanib and its metabolite and the internal standard (diazepam)
Ala A A Al-Subeihi et al.
Toxicology and applied pharmacology, 283(2), 117-126 (2015-01-01)
The present study aims at predicting the level of formation of the ultimate carcinogenic metabolite of methyleugenol, 1'-sulfooxymethyleugenol, in the human population by taking variability in key bioactivation and detoxification reactions into account using Monte Carlo simulations. Depending on the
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