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显示 31-60 共 2802 条结果 关于 "34888" 范围 论文
Francisca O Gbormittah et al.
Journal of proteome research, 13(11), 4889-4900 (2014-09-04)
Clear cell renal cell carcinoma is the most prevalent of all reported kidney cancer cases, and currently there are no markers for early diagnosis. This has stimulated great research interest recently because early detection of the disease can significantly improve
Martin Bachman et al.
Nature chemistry, 6(12), 1049-1055 (2014-11-21)
5-Hydroxymethylcytosine (hmC) is an oxidation product of 5-methylcytosine which is present in the deoxyribonucleic acid (DNA) of most mammalian cells. Reduction of hmC levels in DNA is a hallmark of cancers. Elucidating the dynamics of this oxidation reaction and the
Atsuki Matsubara et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 969, 199-204 (2014-09-03)
The potential of supercritical fluid extraction (SFE) as a preparation method for mass spectrometry of dried blood spots (DBS) was examined. SFE is generally used for the extraction of hydrophobic compounds, but hydrophilic metabolites such as amino acids, amines, and
B S Lopez et al.
Journal of veterinary pharmacology and therapeutics, 38(2), 123-129 (2014-09-17)
The objectives of this study were to investigate the pharmacokinetics of danofloxacin and its metabolite N-desmethyldanofloxacin and to determine their concentrations in synovial fluid after administration by the intravenous, intramuscular or intragastric routes. Six adult mares received danofloxacin mesylate administered
Wenjing Guo et al.
Antonie van Leeuwenhoek, 107(4), 1017-1027 (2015-01-30)
Carotenoids are a naturally occurring and widely distributed group of pigments that provide protection against photooxidation and inactivate free radicals due to their highly conjugated double-bond systems. Phytoene dehydrogenation is the first rate-limiting step in the carotenoid biosynthetic pathway. Phytoene
Jun He et al.
Biomedical chromatography : BMC, 28(10), 1418-1422 (2014-04-02)
A sensitive and rapid LC-MS/MS method has been developed and validated for quantifying swertianolin in rat plasma using rutin as an internal standard (IS). Following liquid-liquid extraction with ethyl acetate, chromatographic separation for swertianolin was achieved on a C18 column
Lei Shi et al.
Journal of the science of food and agriculture, 94(9), 1879-1885 (2013-12-03)
Ochratoxin A (OTA) is a mycotoxin produced by some Aspergillus and Penicillium species. In this study a strain of Bacillus subtilis was tested for its effects on OTA-producing Aspergillus and OTA degradation. The mechanisms of the effects were also investigated.
Wei-Min Zhang et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 965, 107-111 (2014-07-11)
A rapid, sensitive and selective ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) was developed and validated for the determination and pharmacokinetic investigation of avicularin in rat plasma. Sample preparation was accomplished through a simple one-step deproteinization procedure with 0.2 mL
Julia Dinger et al.
Toxicology letters, 230(1), 28-35 (2014-08-12)
Drugs of abuse are not tested for cytochrome P450 (CYP) inhibition potential before distribution. Therefore, a cocktail assay should be developed for testing the inhibition potential for all relevant CYPs. The following CYP test substrates and selective inhibitors were incubated
Lan Ma et al.
Journal of proteomics, 112, 63-82 (2014-09-03)
This study presents an analysis of leave and rood morphology, biochemical and proteomics approach as adaptation strategies of the alpine plant Potentilla saundersiana in an altitude gradient. Several plant physiological parameter, including root and leaf architecture, leaf photosynthesis capacity, specific
Alice Pedrali et al.
Journal of pharmaceutical and biomedical analysis, 107, 125-130 (2015-01-16)
N-Acetylglucosamine is an ingredient in pharmaceuticals, nutritional supplements and in cosmetics. N-Acetylglucosamine in cosmetics is expected to improve skin hydration, reparation, and to contribute as anti-wrinkle agent. This study reports on the validation and application of an HPLC method based
Yogini Jaiswal et al.
European journal of mass spectrometry (Chichester, England), 20(5), 383-393 (2015-02-25)
Curcuma longa L. is recognized for its therapeutic and culinary uses both in Ayurveda and traditional Chinese medicine and is considered to be a boon to mankind. It has been extensively studied for its benefits and still continues to be
A Marechal et al.
Journal of chromatography. A, 1365, 140-147 (2014-09-25)
This paper presents a photografting process of monolithic silica capillary columns based on the ene-thiol click chemistry. This study is performed on a "generic" vinyl-functionalized silica monolith (Hmin 6±1μm). The photoclick reaction is investigated using different thiol monomers (octadecanethiol, cysteine
Kay Marquardt et al.
International journal of pharmaceutics, 479(1), 150-158 (2014-12-30)
RNA-cleaving DNAzymes are a potential novel class of nucleic acid-based active pharmaceutical ingredients (API). However, developing an appropriate drug delivery system (DDS) that achieves high bioavailability is challenging. Especially in a dermal application, DNAzymes have to overcome physiological barriers composed
Zeyou Wang et al.
Oncotarget, 6(5), 3147-3164 (2015-01-22)
MicroRNA-381 (miR-381) is a highly expressed onco-miRNA that is involved in malignant progression and has been suggested to be a good target for glioblastoma multiforme (GBM) therapy. In this study, we employed two-dimensional fluorescence differential gel electrophoresis (2-D DIGE) and
Nayara Cristina Perez de Albuquerque et al.
Journal of pharmaceutical and biomedical analysis, 109, 192-201 (2015-03-18)
Zopiclone (ZO) is a chiral drug that undergoes extensive metabolism to N-desmethylzopiclone (N-Des-ZO) and zopiclone-N-oxide (N-Ox-ZO). Pharmacological studies have shown (S)-N-Des-ZO metabolite presents anxiolytic activity and a patent for this metabolite was requested for anxiety treatment and related disorders. In
Swen Langer et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 960, 73-81 (2014-05-06)
Water-soluble vitamins are an important class of compounds that require quantification from food sources to monitor nutritional value. In this study we have analysed six water-soluble B vitamins ([thiamine (B1), riboflavin (B2), nicotinic acid (B3, NAc), nicotinamide (B3, NAm), pyridoxal
Miina Ruokolainen et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 65, 45-55 (2014-09-16)
The aim of this study was to investigate the feasibility of titanium dioxide (TiO2) photocatalysis for oxidation of anabolic steroids and for imitation of their phase I metabolism. The photocatalytic reaction products of five anabolic steroids were compared to their
Erica L Unger et al.
Experimental neurology, 261, 462-468 (2014-07-08)
Iron deficiency (ID) in rodents leads to decreased ventral midbrain (VMB) iron concentrations and to changes in the dopamine (DA) system that mimic many of the dopaminergic changes seen in RLS patient where low substantia nigra iron is a known
Ying Zhang et al.
Journal of the American Society for Mass Spectrometry, 26(3), 526-529 (2014-12-19)
Unlike small-molecule drugs, the size and dynamics of protein therapeutics challenge existing methods for assessing their high order structures (HOS). To extend fast photochemical oxidation of proteins (FPOP) to protein therapeutics, we modified its platform by introducing a mixing step
Ru-Xin Luo et al.
Fa yi xue za zhi, 28(6), 422-425 (2013-03-15)
To establish the method for measurement of acetonitrile in blood and urine by head-space gas chromatography. DB-ALC1 (30 m x 320 microm x 1.8 microm) and DB-ALC2 (30 m x 320 microm x 1.2 microm) capillary column were used to
Mahavir B Chougule et al.
Journal of drug targeting, 22(6), 498-508 (2014-04-16)
The purpose of this study was to investigate the permeation of Noscapine (Nos) across the Caco-2 and Madin-Darby canine kidney (MDCK) cell monolayers and to evaluate the influence of absorption enhancers on in vitro and in vivo absorption of Nos.
Amy Wong et al.
Journal of lipid research, 55(9), 1902-1913 (2014-07-27)
We describe a novel LC method for the simultaneous and quantitative profiling of 43 oxylipins including eicosanoids, endocannabinoids, and structurally related bioactive lipids with modified acyl groups. The LC-MS/MS method uses switching at a defined time between negative and positive
Xiaobai Li et al.
International journal of molecular sciences, 15(11), 19877-19897 (2014-11-05)
The labellum in orchids shares homology with the inner lateral petals of the flower. The labellum is a modified petal and often distinguished from other petals and sepals due to its large size and irregular shape. Herein, we combined two-dimensional
M Sałaga et al.
Naunyn-Schmiedeberg's archives of pharmacology, 387(11), 1069-1078 (2014-08-01)
Oenothera paradoxa (EP) preparations are commonly used in folk medicine to treat skin diseases, neuralgia, and gastrointestinal (GI) disorders. Several reports suggested that EP preparations exhibit potent anti-inflammatory and antioxidant activities both in vitro and in vivo. Here, we aimed
Tugba Olmez-Hanci et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 70(6), 1056-1064 (2014-09-27)
Photo-Fenton-like treatment of the commercially important naphthalene sulphonate K-acid (2-naphthylamine-3,6,8-trisulphonic acid) was investigated using UV-C, UV-A and visible light irradiation. Changes in toxicity patterns were followed by the Vibrio fischeri bioassay. Rapid and complete degradation of K-acid accompanied with nearly
QingMing Kong et al.
Molecular bioSystems, 11(5), 1400-1409 (2015-03-31)
Artesunate (ART) has high prophylactic efficacy against Schistosoma japonicum infections and has been used to treat and prevent schistosomiasis in China since 1995. However, the molecular mechanism of ART's effects on S. japonicum remains unclear. Herein, we applied isobaric tagging
Wanyuan Gui et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(3), 607-613 (2014-12-11)
A pH-controlled delivery system based on mesoporous silica nanoparticles (MSNs) was constructed for dual-cargo selective release. To achieve a better controlled-release effect, a modified sol-gel method was employed to obtain MSNs with tunable particle and pore sizes. The systems selectively
Andreas Bimpilas et al.
Food chemistry, 178, 164-171 (2015-02-24)
Changes in the principal phenolic compounds and metal content during the vinification process and storage under modified atmosphere (50% N2, 50% CO2) of Merlot and Syrah wines, from grapes cultivated in Greece, have been investigated. Comparing the variation of metals
Carina S D Wink et al.
Analytical and bioanalytical chemistry, 407(6), 1545-1557 (2015-01-13)
Lefetamine (N,N-dimethyl-1,2-diphenylethylamine, L-SPA) was marketed as an opioid analgesic in Japan and Italy. After being widely abused, it became a controlled substance. It seems to be a pharmaceutical lead for designer drugs because N-ethyl-1,2-diphenylethylamine (NEDPA) and N-iso-propyl-1,2-diphenylethylamine (NPDPA) were confiscated
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