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494518

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Matthäus Mlynek et al.
Journal of chromatography. A, 1284, 112-117 (2013-03-08)
The behaviour of PMMA standards in mixtures composed of two binary critical eluents was investigated. It was found that combinations of two critical eluents do not result in a molar mass independent elution (critical conditions). When mixing two binary critical
Hannelore Rücker et al.
Organic & biomolecular chemistry, 13(10), 3040-3047 (2015-01-27)
Inflammatory signaling pathways orchestrate the cellular response to infection and injury. These pathways are known to be modulated by compounds that alkylate cysteinyl thiols. One class of phytochemicals with strong thiol alkylating activity is the chalcones. In this study we
John Suberu et al.
Journal of pharmaceutical and biomedical analysis, 117, 522-531 (2015-10-18)
An improved liquid chromatography-tandem mass spectrometry (LC-MS/MS) protocol for rapid analysis of co-metabolites of A. annua in raw extracts was developed and extensively characterized. The new method was used to analyse metabolic profiles of 13 varieties of A. annua from
Q Q He et al.
Organic & biomolecular chemistry, 13(13), 4070-4079 (2015-03-05)
This study investigated the unexpected decomposition and associated intermediates of compound 1, a specific member of a drug discovery library based on a monosaccharide scaffold. LC/MS and NMR spectroscopic analyses indicated that, under acidic conditions, 1 can be converted into
Nicolas Chevalier et al.
Human reproduction (Oxford, England), 30(2), 447-453 (2014-12-21)
Does a relationship exist between insulin-like peptide 3 (INSL3) and selected environmental endocrine disruptors (EEDs) in human cord blood (cb)? In the whole population (cryptorchid and control boys) cbINSL3 correlated negatively with cb free bisphenol A (BPA) providing indirect evidence
Gustavo D Mendes et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 969, 19-28 (2014-08-26)
A rapid, sensitive and specific method for quantifying propylthiouracil in human plasma using methylthiouracil as the internal standard (IS) is described. The analyte and the IS were extracted from plasma by liquid-liquid extraction using an organic solvent (ethyl acetate). The
Nađa Kostić et al.
Journal of pharmaceutical and biomedical analysis, 109, 79-84 (2015-03-15)
In this paper, novel LC-MS/MS methods for the determination of antiepileptic drug pregabalin in dried matrix spots (DMS) are presented. This attractive technique of sample collection in micro amount was utilized in the form of dried blood spots (DBS) and
Eunice Molinar-Toribio et al.
PloS one, 9(8), e104637-e104637 (2014-08-15)
SHROB rats have been suggested as a model for metabolic syndrome (MetS) as a situation prior to the onset of CVD or type-2 diabetes, but information on descriptive biochemical parameters for this model is limited. Here, we extensively evaluate parameters
Dilek Battal et al.
Therapeutic drug monitoring, 37(6), 805-811 (2015-05-21)
Mescaline, the primary psychoactive chemical in peyote cactus, has been consumed for thousands of years in ancient religious ceremonies. The US military wanted to determine if mescaline intake was a problem for personnel readiness. Twenty thousand seventeen urine specimens negative
Laishram Shantikumar Singh et al.
BMC microbiology, 14, 278-278 (2014-11-20)
Actinomycetes have provided a wealth of bioactive secondary metabolites with interesting activities such as antimicrobial, antiviral and anticancer. The study aims at isolation, characterization and the antimicrobial potentiality of Streptomyces sannanensis SU118 obtained from Phoomdi, a unique habitat of Loktak
Cristiane dos Santos Giuberti et al.
Journal of liposome research, 23(3), 220-227 (2013-05-11)
Recent studies using long-circulating and pH-sensitive liposomes containing cisplatin (SpHL-CDDP) have resulted in a formulation with improved pharmacokinetic, toxicity and tumor localization properties. In this study, SpHL-CDDP were prepared in both laboratory and pilot scales. This study evaluated the possibility
Christy Echakachi Manyi-Loh et al.
Pakistan journal of pharmaceutical sciences, 26(5), 897-906 (2013-09-17)
The growing problem of antibiotic resistance by Helicobacter pylori demands the search for novel compounds, especially from natural sources. We evaluated the anti-H. pylori activity of six local honeys at different concentrations as well as their solvent extracts by the
Susana Grimalt et al.
Analytical and bioanalytical chemistry, 407(11), 3083-3091 (2015-01-30)
The feasibility of the production of a reference material for pesticide residue analysis in a cucumber matrix was investigated. Cucumber was spiked at 0.075 mg/kg with each of the 15 selected pesticides (acetamiprid, azoxystrobin, carbendazim, chlorpyrifos, cypermethrin, diazinon, (α + β)-endosulfan, fenitrothion, imazalil
Katherine Chulvi et al.
Molecules (Basel, Switzerland), 20(11), 20688-20698 (2015-11-28)
The crystal structure of two neutral triarylmethane dyes with a p-quinone methide core was determined by X-ray diffraction analysis. The spectroscopic characteristics of both compounds in 23 solvents with different polarities or hydrogen-bonding donor (HBD) abilities has been studied as
Yung-Chih Kuo et al.
International journal of pharmaceutics, 479(1), 138-149 (2015-01-07)
Lactoferrin (Lf) and folic acid (FA) were crosslinked on poly(lactide-co-glycolide) (PLGA) nanoparticles (NPs) for transporting etoposide across the blood-brain barrier (BBB) and treating human brain malignant glioblastoma. Lf- and FA-grafted PLGA NPs (Lf/FA/PLGA NPs) were employed to permeate the monolayer
Laura Trabalón et al.
Environmental research, 143(Pt B), 116-122 (2015-04-29)
The occurrence of ten synthetic musks in samples of 10 widely consumed fish and shellfish species from Tarragona (Catalonia, Spain) was determined. The most used nitro and polycyclic musks, as well as a well-known transformation product in tissues, were analyzed.
Huimei Huang et al.
Journal of ethnopharmacology, 161, 175-185 (2014-09-10)
Shexiang Baoxin Pill (SBP) is a well-known composite formula of traditional Chinese medicine (TCM), widely used to treat cardiovascular diseases such as angina pectoris and myocardial infarction. Bufadienolides are major active compounds of Venenum Bufonis, which is one of the
Lorraine Aparecida Pinto et al.
Naunyn-Schmiedeberg's archives of pharmacology, 388(3), 305-317 (2014-11-25)
The purpose of the present study was to evaluate the gastroprotective and healing effects of the methanolic extract of the seed of the papaya Carica papaya L. (MECP) in rats. Models of acute gastric ulcer induction by ethanol and indomethacin
Kalaiselvi Senthil et al.
PloS one, 10(4), e0123360-e0123360 (2015-04-16)
Free radical scavenging activity (FRSA), total phenolic content (TPC), and total flavonoid content (TFC) of in vitro cultured and field grown Withania somnifera (Ashwagandha) roots were investigated. Withanolides analysis and comprehensive metabolic profiling between 100% methanol extracts of in vitro
Rosa María González Paredes et al.
Journal of chromatography. A, 1359, 52-59 (2014-08-13)
A method based on the coupling of in situ extraction and derivatization of chlorophenols (CPs) (2-chlorophenol, 4-chloro-3-methylphenol, 2,4-dichlorophenol, and 2,4,6-trichlorophenol) from soils, accomplishing their preconcentration by means of automated microextraction by packed sorbent (MEPS), is proposed. After extraction and acylation
Matthew Fankhauser et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 20(21), 5547-5557 (2014-04-29)
It has been recognized for almost a decade that concentrations of signaling androgens sufficient to activate the androgen receptor are present in castration-resistant prostate cancer tissue. The source of these androgens is highly controversial, with three competing models proposed. We
Marianne de Villiers et al.
The FEBS journal, 281(20), 4731-4753 (2014-08-27)
N-substituted pantothenamides are analogues of pantothenic acid, the vitamin precursor of CoA, and constitute a class of well-studied bacterial growth inhibitors that show potential as new antibacterial agents. Previous studies have highlighted the importance of pantothenate kinase (PanK; EC 2.7.1.33)
Maarit Neuvonen et al.
PloS one, 9(8), e103743-e103743 (2014-08-27)
Bacterial cholesterol oxidase is commonly used as an experimental tool to reduce cellular cholesterol content. That the treatment also generates the poorly degradable metabolite 4-cholesten-3-one (cholestenone) has received less attention. Here, we investigated the membrane partitioning of cholestenone using simulations
Yosie Andriani et al.
Molecules (Basel, Switzerland), 20(3), 4410-4429 (2015-03-12)
In vitro and in vivo studies of the activity of Phaleria macrocarpa Boerl (Thymelaeaceae) leaves against the therapeutic target for hypercholesterolemia were done using the HDL receptor (SR-BI) and hypercholesterolemia-induced Sprague Dawley rats. The in vitro study showed that the
Valentina Manzo et al.
Talanta, 128, 486-492 (2014-07-26)
In this study, six non-steroidal anti-inflammatory drugs (NSAIDs) were extracted from water samples using the rotating-disk sorptive extraction (RDSE) technique. The extraction disk device contains a central cavity that allows for the incorporation of a powdered sorbent phase (Oasis™ HLB).
Fotini A Trikka et al.
BMC genomics, 16, 935-935 (2015-11-18)
Salvia diterpenes have been found to have health promoting properties. Among them, carnosic acid and carnosol, tanshinones and sclareol are well known for their cardiovascular, antitumor, antiinflammatory and antioxidant activities. However, many of these compounds are not available at a
Jun Yang et al.
American journal of respiratory cell and molecular biology, 52(1), 46-55 (2014-06-13)
Control of airway inflammation is critical in asthma treatment. Soluble epoxide hydrolase (sEH) has recently been demonstrated as a novel therapeutic target for treating inflammation, including lung inflammation. We hypothesized that pharmacological inhibition of sEH can modulate the inflammatory response
Yared Merdassa et al.
Journal of AOAC International, 98(1), 192-200 (2015-04-11)
A rapid, efficient, and simple one-step ultrasound-assisted extraction (UAE) method was developed for the analysis of seven fungicides (cymoxanil, metalaxyl, mandipropamid, folpet, chlorothalonil, kresoxim-methyl, and famoxadone) in horticultural soils. Analytes in the samples were determined by HPLC with variable wavelength
Navin Gopinathan et al.
International journal of pharmaceutics, 469(1), 146-158 (2014-04-15)
PLGA/PLA polymeric nanoparticles could potentially enhance the effectiveness of convective delivery of drugs, such as carboplatin, to the brain, by enabling a more sustained dosage over a longer time than otherwise possible. However, the link between the controlled release nanoparticle
Dynamics and control of an ethyl acetate reactive distillation column.
Vora N and Daoutidis P.
Industrial & Engineering Chemistry Research, 40(3), 833-849 (2001)
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