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Showing 1-30 of 2801 results for "34881" within Papers
Weixia Li et al.
Journal of chromatography. A, 1346, 49-56 (2014-05-06)
The compatibility of Angelicae Sinensis Radix (Danggui, DG) and Chuanxiong Rhizoma (Chuanxiong, CX), a famous herb pair Gui-Xiong (GX), can produce synergistic and complementary hematopoiesis. In present study, global metabolic profiling with ultra-high-performance liquid chromatography coupled to quadrupole time-of-flight mass
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
Paweł Kubica et al.
Analytical and bioanalytical chemistry, 407(5), 1505-1512 (2014-12-05)
The method for the determination of acesulfame-K, saccharine, cyclamate, aspartame, sucralose, alitame, neohesperidin dihydrochalcone, neotame and five common steviol glycosides (rebaudioside A, rebaudioside C, steviol, steviolbioside and stevioside) in soft and alcoholic beverages was developed using high-performance liquid chromatography and
Cordula Stillhart et al.
Pharmaceutical research, 31(12), 3426-3444 (2014-06-26)
In vitro lipolysis is widely utilized for predicting in vivo performance of oral lipid-based formulations (LBFs). However, evaluation of LBFs in the absence of an absorption sink may have limited in vivo relevance. This study aimed at employing biopharmaceutical modeling
Gaofei Zhang et al.
Journal of pharmaceutical and biomedical analysis, 94, 210-214 (2014-03-19)
A new tadalafil analogue was detected and isolated from a dietary supplement, the structure was elucidated by means of nuclear magnetic resonance (NMR) and mass spectroscopy. The compound was determined to be diethylaminopretadalafil, which might be derived from a precursor
Chenrong Huang et al.
Journal of chromatographic science, 52(7), 636-640 (2013-07-11)
A novel method has been developed for the determination of cefaclor in human plasma by ultra-performance liquid chromatography combined with tandem mass spectrometry (UPLC-MS-MS). The plasma was treated by a single step of protein precipitation with acetonitrile. The chromatographic separation
Naveen K Bejugam et al.
Drug development and industrial pharmacy, 41(2), 333-341 (2013-11-28)
To develop a tablet formulation for an active pharmaceutical ingredient for which sticking and filming problems occurred during tablet punching. Direct compression and dry granulation tableting techniques were evaluated using factorial experimental design. The effects of chrome-coated punch tips, filler
Timothy Paul Wood et al.
Environmental pollution (Barking, Essex : 1987), 199, 235-243 (2015-02-15)
The study and quantification of personal care products, such as pharmaceuticals, in surface water has become popular in recent years; yet very little description of these compounds' presence in South African surface water exists in the literature. Antiretrovirals (ARVs), used
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
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
Li Zhang et al.
Journal of chromatography. A, 1386, 22-30 (2015-02-24)
A new analytical method was established and validated for the analysis of 19 substances of very high concern (SVHCs) in textiles, including phthalic acid esters (PAEs), organotins (OTs), perfluorochemicals (PFCs) and flame retardants (FRs). After ultrasonic extraction in methanol, the
Fazel Shabanpoor et al.
Nucleic acids research, 43(1), 29-39 (2014-12-04)
The potential for therapeutic application of splice-switching oligonucleotides (SSOs) to modulate pre-mRNA splicing is increasingly evident in a number of diseases. However, the primary drawback of this approach is poor cell and in vivo oligonucleotide uptake efficacy. Biological activities can
Yi Chen Lu et al.
Journal of agricultural and food chemistry, 63(1), 92-103 (2014-12-17)
This study investigated the herbicide isoproturon (IPU) residues in soil, where wheat was cultivated and sprayed with salicylic acid (SA). Provision of SA led to a lower level of IPU residues in rhizosphere soil compared to IPU treatment alone. Root
Li-hua Fan et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 986-987, 18-22 (2015-02-24)
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 acacetin in rat plasma. Sample preparation was accomplished through a simple one-step deproteinization procedure with 0.2 mL
Norie Inukai et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(46), 15159-15168 (2014-09-23)
This work demonstrates a selection criteria that determines whether molecular assembly occurs through a one-step or stepwise manner in ligand-bridged dinuclear zinc(II) (Zn(2+)) complex formation, which is associated with the π stacking of building blocks. The building blocks of carbazole
Andreas Lauterbach et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 88(3), 614-624 (2014-12-03)
A novel adapalene-loaded solid lipid microparticle (SLMA) dispersion as a topical drug delivery system (TDDS) for follicular penetration has been introduced. The objective of the present study was to investigate the rheological properties, the follicular penetration with differential tape stripping
Marco Pistolozzi et al.
Drug metabolism and disposition: the biological fate of chemicals, 43(3), 344-352 (2014-12-17)
This work describes the sequential hydrolysis of bambuterol enantiomers and their monocarbamate metabolites (MONO) catalyzed by human butyrylcholinesterase (BChE) as well as the enzyme inhibition resulting from this process. Particular emphasis is given to the contribution given by MONO to
Astrid Milić et al.
European journal of drug metabolism and pharmacokinetics, 39(4), 263-276 (2013-10-12)
The purpose of this study was to evaluate the impact of structural modifications on the 15-membered macrolactone ring and/or substituents on the in vitro ADME properties and in vivo pharmacokinetic (PK) profile for selected derivatives in rodents in comparison to
Keisuke Ohsumi et al.
The Journal of antibiotics, 67(10), 707-711 (2014-05-29)
A novel antifungal agent, AS2077715, was isolated from the fermentation broth of a fungal strain (339855) identified as a new Capnodium species based on morphological characteristics and large-subunit ribosomal DNA sequencing. AS2077715 was isolated as a white powder via solvent
Jeong-Yong Cho et al.
Bioscience, biotechnology, and biochemistry, 79(2), 260-270 (2014-10-29)
Changes in chemical constituent contents and DPPH radical-scavenging activity in fruits of pear (Pyrus pyrifolia) cultivars during the development were investigated. The fruits of seven cultivars (cv. Niitaka, Chuhwangbae, Wonhwang, Hwangkeumbae, Hwasan, Manpungbae, and Imamuraaki) were collected at 15-day intervals
Hector H F Koolen et al.
Journal of the American Society for Mass Spectrometry, 25(7), 1181-1191 (2014-05-02)
Chemical cross-linking is an attractive low-resolution technique for structural studies of protein complexes. Distance constraints obtained from cross-linked peptides identified by mass spectrometry (MS) are used to construct and validate protein models. Amidinating cross-linkers such as diethyl suberthioimidate (DEST) have
Olgica Trenchevska et al.
Journal of proteomics, 116, 15-23 (2015-01-01)
The chemokine RANTES plays a key role in inflammation, cell recruitment and T cell activation. RANTES is heterogenic and exists as multiple variants in vivo. Herein we describe the development and characterization of a fully quantitative mass spectrometric immunoassay (MSIA)
Patrick C Dolder et al.
Analytical and bioanalytical chemistry, 407(6), 1577-1584 (2014-12-30)
Lysergic acid diethylamide (LSD) is a widely used recreational drug. The aim of the present study is to develop a quantitative turboflow LC-MS/MS method that can be used for rapid quantification of LSD and its main metabolite 2-oxo-3-hydroxy LSD (O-H-LSD)
Total inhibition of (1)O2-induced oxidative damage to guanine bases of DNA/RNA by turmeric extracts.
Prakash C Joshi et al.
Biochemical and biophysical research communications, 452(3), 515-519 (2014-09-03)
The guanine base of nucleic acids is known to be very reactive towards degradation by (1)O2-induced oxidative stress. Oxidative reactions of DNA are linked to many human diseases including cancer. Among the various forms of reactive O2 species (OH, (1)O2
Rui Liu et al.
Autophagy, 10(7), 1241-1255 (2014-06-07)
Glioblastoma is one of the most aggressive human cancers with poor prognosis, and therefore a critical need exists for novel therapeutic strategies for management of glioblastoma patients. Itraconazole, a traditional antifungal drug, has been identified as a novel potential anticancer
Eric J Lanni et al.
Journal of the American Society for Mass Spectrometry, 25(11), 1897-1907 (2014-09-04)
We describe a hybrid MALDI/C(60)-SIMS Q-TOF mass spectrometer and corresponding sample preparation protocols to image intact biomolecules and their fragments in mammalian spinal cord, individual invertebrate neurons, and cultured neuronal networks. A lateral spatial resolution of 10 μm was demonstrated
Róbert Kormány et al.
Journal of pharmaceutical and biomedical analysis, 94, 188-195 (2014-03-08)
In this contribution, the possibility to automatically transfer RPLC methods between different column dimensions and instruments was evaluated using commercial modelling software. The method transfer reliability was tested with loratadine and its 7 related pharmacopeial impurities. In this study, state-of-the-art
Martin Lau Christiansen et al.
Journal of pharmaceutical sciences, 104(1), 135-143 (2014-11-25)
This study investigated the oral absorption of drugs in minipigs to predict food effects in man. The protocol was based on a previously described model in dogs and further investigated the food source (i.e., US FDA breakfast or a nutritional
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