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Showing 1-30 of 5496 results for "733466" within Papers
Zhouen Zhang et al.
Journal of labelled compounds & radiopharmaceuticals, 57(8), 540-549 (2014-07-06)
The nucleosides zidovudine (AZT), stavudine (d4T), and telbivudine (LdT) are approved for use in the treatment of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) infections. To promote positron emission tomography (PET) imaging studies on their pharmacokinetics, pharmacodynamics, and
Youn Gee Seo et al.
Archives of pharmacal research, 38(2), 223-228 (2014-08-20)
The purpose of this study was to develop a novel tacrolimus-loaded solid self-emulsifying drug delivery system (SEDDS) using Labrafac as an oil phase. The ternary phase diagram was plotted with Labrafac, Labrasol and Lauroglycol used as an oil, surfactant and
Katherine A Rempe et al.
mBio, 6(4) (2015-08-27)
Glycosylation is a widespread mechanism employed by both eukaryotes and bacteria to increase the functional diversity of their proteomes. The nontypeable Haemophilus influenzae glycosyltransferase HMW1C mediates unconventional N-linked glycosylation of the adhesive protein HMW1, which is encoded in a two-partner
Sumit Kumar et al.
International journal of pharmaceutics, 486(1-2), 159-166 (2015-03-31)
The purpose of this study was to investigate the in vitro dissolution performance of the different sized spray-dried nano-crystalline powders of naproxen. A DoE approach was used to formulate and optimize nano-crystalline suspensions. The critical wet milling operation parameters were
Minjie Jiang et al.
PloS one, 10(2), e0116010-e0116010 (2015-02-26)
A rapid, sensitive and selective high-performance liquid chromatography-tandem mass spectrometric method (HPLC-MS) was developed and validated to determine the 14-(3-methylbenzyl)matrine (3MBM) and 14-(4-methylbenzyl)matrine (4MBM) levels in rat plasma in the present study. The analytes were separated using a C18 column
Dao-Jin Chen et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 969, 42-52 (2014-08-26)
Folk drug Gynostemma pentaphyllum (Thunb.) Makino contains many biologically active phytochemicals which have been demonstrated to be effective against chronic diseases. As in vivo anti-tumor experiments of G. pentaphyllum extract (GP) show much stronger antitumor activities than in vitro, it
Ting-Ting Jiang et al.
BMC complementary and alternative medicine, 15, 243-243 (2015-07-23)
Traditional Chinese Medicine (TCM) has been applied in treating tuberculosis (TB) based on the TCM syndromes with the effects of inhibiting Mycobacterium, strengthening the body immune system, and reducing the pulmonary toxicity. We used bioinformatic methods to study the clinical
Sara Hosseininasab et al.
Chemical biology & drug design, 84(3), 307-315 (2014-04-02)
Therapeutic proteins and peptides are corresponding to a major area of research in biotechnology companies and current pharmaceutical. Because of their natural instability, the enormous majority of these drugs require parentéral administration. Oral insulin delivery would be a highly attractive
Barbara Chiavarino et al.
Journal of the American Society for Mass Spectrometry, 24(10), 1603-1607 (2013-08-21)
The C - C bond formation activated under negative electrospray ionization of an acetonitrile solution of 1,3,5-trinitrobenzene is reported. The solvent function is to provide a source of cyanide ion, a highly problematic reagent, which is found to attack the
Johannes Bertsch et al.
Journal of bacteriology, 197(9), 1681-1689 (2015-03-04)
The methylenetetrahydrofolate reductase (MTHFR) of acetogenic bacteria catalyzes the reduction of methylene-THF, which is highly exergonic with NADH as the reductant. Therefore, the enzyme was suggested to be involved in energy conservation by reducing ferredoxin via electron bifurcation, followed by
Amit Kumar et al.
Bioconjugate chemistry, 26(4), 782-789 (2015-03-12)
We report a click-chemistry based modular strategy for antibody labeling with (64)Cu (t1/2 = 12.7 h; β(+) 0.656 MeV, 17.4%; β(-) 0.573 MeV, 39%; EC 43%) under ambient condition utilizing a cross-bridged tetraazamacrocyclic (CB-TE2A) analogue, which otherwise requires harsh conditions
Debjit Basu et al.
Bioorganic & medicinal chemistry, 23(12), 2767-2780 (2015-05-16)
The clinical success of covalent kinase inhibitors in the treatment of EGFR-dependent non-small cell lung cancer (NSCLC) has rejuvenated the appreciation of reactive small molecules. Acquired drug resistance against first-line EGFR inhibitors remains the major bottleneck in NSCLC and is
Sarah Afshordel et al.
Pharmacological research, 91, 69-77 (2014-12-17)
Alterations in small GTPase mediated signal transduction pathways have emerged as a central step in the molecular pathogenesis of glioblastoma (GBM), the most common malignant brain tumor in adults. Farnesylpyrophosphate (FPP) and geranylgeranylpyrophosphate (GGPP) are derived from mevalonate, whose production
Adam Byron et al.
Nature communications, 6, 6135-6135 (2015-01-23)
Integrin activation, which is regulated by allosteric changes in receptor conformation, enables cellular responses to the chemical, mechanical and topological features of the extracellular microenvironment. A global view of how activation state converts the molecular composition of the region proximal
Philipp S Weiss et al.
Bioorganic & medicinal chemistry, 23(17), 5856-5869 (2015-07-22)
Several (18)F-labeled aromatic amino acids have been developed primarily for tumor imaging with positron-emission-tomography (PET). Also, (18)F-labeled tryptophan derivatives were synthesized by electrophilic (18)F-fluorination or by introducing a [(18)F]fluoroalkyl group. Here, a 3-step method for a nucleophilic radiosynthesis of 4-[(18)F]fluoro-L-tryptophan
Lingzhi Li et al.
Oncotarget, 6(14), 12009-12019 (2015-05-07)
We had previously reported that trivalent arsenic (As(3+)), a well-known environmental carcinogen, induces phosphorylation of several putative Akt substrates. In the present report, we characterized one of these substrates by immunoprecipitation and proteomics analysis. The results indicate that a cytoskeleton
Wenzhuan Ma et al.
Journal of pharmaceutical and biomedical analysis, 111, 215-221 (2015-04-25)
A specific, sensitive and rapid liquid chromatography tandem mass spectrometry (LC-MS/MS) method has been developed and validated for simultaneous quantification of doxorubicin and curcumin in rat plasma after intravenous administration. The analytes of doxorubicin and curcumin were extracted with methanol
Mahmood M Alam et al.
Nature communications, 6, 7285-7285 (2015-07-08)
Our understanding of the key phosphorylation-dependent signalling pathways in the human malaria parasite, Plasmodium falciparum, remains rudimentary. Here we address this issue for the essential cGMP-dependent protein kinase, PfPKG. By employing chemical and genetic tools in combination with quantitative global
Jianhua Zheng et al.
Journal of proteomics, 126, 189-199 (2015-06-14)
Post-translational modifications regulate many aspects of protein behavior and provide options for expanding protein functionality in organisms. Protein phosphorylation is one of the major PTMs observed in bacteria, which are involved in regulating a myriad of physiological processes. Mycobacterium bovis
Giancarlo Vanini et al.
The European journal of neuroscience, 40(1), 2264-2273 (2014-03-29)
The oral part of the pontine reticular formation (PnO) contributes to the regulation of sleep, anesthesia and pain. The role of PnO γ-aminobutyric acid (GABA) in modulating these states remains incompletely understood. The present study used time to loss and
Chunlan Tang et al.
Biomedical chromatography : BMC, 29(12), 1913-1920 (2015-05-27)
Parishin is a dominant active ingredient originating from Gastrodia elata Blume, and has good neuroprotective effects against brain disorders. In the present study, the metabolic profile of parishin by in vitro and in vivo experiments was investigated using ultra-high performance
A T Hughes et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 963, 106-112 (2014-06-22)
Alkaptonuria (AKU) is a rare debilitating autosomal recessive disorder of tyrosine metabolism. Deficiency of homogentisate 1,2-dioxygenase results in increased homogentisic acid (HGA) which although excreted in gram quantities in the urine, is deposited as an ochronotic pigment in connective tissues
Raúl Pérez-Ortuño et al.
Analytical and bioanalytical chemistry, 407(28), 8463-8473 (2015-09-08)
A straightforward, high-throughput method was developed and fully validated for the simultaneous determination of the specific tobacco biomarkers nicotine and its main metabolite cotinine in a wide dynamic range and supporting the most common human biological matrices (urine, oral fluid
Mitsuru Tanaka et al.
Molecular nutrition & food research, 59(8), 1541-1549 (2015-03-27)
The basic dipeptide, Trp-His, was found to show an in vivo anti-atherosclerotic effect when orally administered to apo E-deficient mice. In addition, this dipeptide causes vasorelaxation in contracted rat aorta via suppression of intracellular Ca(2+) signaling cascades. In this study
Piergiorgio Gentile et al.
International journal of molecular sciences, 16(9), 20492-20510 (2015-09-08)
Biodegradable poly(lactide-co-glycolide) (PLGA) nanoparticles, containing human parathyroid hormone (PTH (1-34)), prepared by a modified double emulsion-solvent diffusion-evaporation method, were incorporated in porous freeze-dried chitosan-gelatin (CH-G) scaffolds. The PTH-loaded nanoparticles (NPTH) were characterised in terms of morphology, size, protein loading, release
Tony Antoniou et al.
Antiviral therapy, 19(6), 607-611 (2014-02-13)
We sought to determine the pharmacokinetic disposition of raltegravir in the blood and seminal plasma of HIV-infected men. We conducted a pharmacokinetic study using a staggered sampling approach. A total of 16 HIV-infected men receiving raltegravir-based therapy were recruited into
Yi Huang et al.
Pharmaceutical biology, 52(6), 681-687 (2014-05-16)
Alismatis rhizome (RA) (Water Plantain Family, also called "Zexie" in Chinese), one of the commonly used components of traditional Chinese medicines, is derived from the dried rhizomes of Alisma orientalis (Sam.) Juzep. (Alismataceae). This study explores the RA influences on
Roberto Stella et al.
Proteomics, 15(13), 2332-2341 (2015-03-12)
Despite the ban by the European Union, anabolic steroids might still be illicitly employed in bovine meat production. The surveillance of misuse of such potentially harmful molecules is necessary to guarantee consumers' health. Analytical methods for drug residue control are
Chunhao Yu et al.
Journal of ginseng research, 39(3), 230-237 (2015-07-23)
Colorectal cancer (CRC) is a leading cause of death worldwide. Chronic gut inflammation is recognized as a risk factor for tumor development, including CRC. American ginseng is a very commonly used ginseng species in the West. A genetically engineered Apc
Daniel G Beach et al.
Analytical and bioanalytical chemistry, 407(9), 2473-2484 (2015-01-27)
The analysis of paralytic shellfish toxins (PSTs) by liquid chromatography-mass spectrometry remains a challenge because of their high polarity, large number of analogues and the complex matrix in which they occur. Here we investigate the potential utility of high-field asymmetric
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