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Zhi-Jian Li et al.
Phytotherapy research : PTR, 29(7), 1019-1025 (2015-04-29)
Ellagic acid (EA) has been shown to have antioxidant, antibacterial, and anti-inflammatory activities. In Uighur traditional medicine, Euphorbia humifusa Willd is used to treat fungal diseases, and recent studies suggest that it is the EA content which is responsible for
Saman Arab et al.
Archiv der Pharmazie, 348(9), 643-649 (2015-07-21)
A novel series of chroman-4-one derivatives containing the N-benzyl pyridinium moiety were designed, synthesized, and evaluated for their acetylcholinesterase (AChE) inhibitory activities. Among the various synthesized compounds, (E)-1-(2,3-dibromobenzyl)-4-((7-ethoxy-4-oxochroman-3-ylidene)methyl)pyridinium bromide (8l) depicted the most potent anti-AChE activity (IC50 = 0.048 μM). In addition, the
Pilar Viñas et al.
Journal of chromatography. A, 1376, 18-25 (2014-12-30)
Phthalic acid esters (PEs) were preconcentrated from cleaning products, detergents and cosmetics using ultrasound assisted extraction (UAE) in the presence of acetonitrile, and then submitted to dispersive liquid-liquid microextraction (DLLME). For DLLME, 3mL of acetonitrile extract, 150μL carbon tetrachloride and
Chung Sub Kim et al.
Journal of neurophysiology, 113(7), 2511-2523 (2015-02-06)
The dorsal and ventral hippocampi are functionally and anatomically distinct. Recently, we reported that dorsal Cornu Ammonis area 1 (CA1) neurons have a more hyperpolarized resting membrane potential and a lower input resistance and fire fewer action potentials for a
O Karslıoğlu et al.
Faraday discussions, 180, 35-53 (2015-04-29)
We describe a new in operando approach for the investigation of heterogeneous processes at solid/liquid interfaces with elemental and chemical specificity which combines the preparation of thin liquid films using the meniscus method with standing wave ambient pressure X-ray photoelectron
Alessia Finotti et al.
Pharmacological research, 91, 57-68 (2014-12-06)
Rapamycin, an inhibitor of mTOR activity, is a potent inducer of erythroid differentiation and fetal hemoglobin production in β-thalassemic patients. Mithramycin (MTH) was studied to see if this inducer of K562 differentiation also operates through inhibition of mTOR. We can
Franklin Feng Tao et al.
Nature communications, 6, 7798-7798 (2015-08-05)
It is crucial to develop a catalyst made of earth-abundant elements highly active for a complete oxidation of methane at a relatively low temperature. NiCo2O4 consisting of earth-abundant elements which can completely oxidize methane in the temperature range of 350-550 °C.
Julia C Frei et al.
Virology, 485, 371-382 (2015-09-05)
Here we investigated the binding of Dengue virus envelope glycoprotein domain III (DIII) by two broadly neutralizing antibodies (bNAbs), 4E11 and 4E5A. There are four serotypes of Dengue virus (DENV-1 to -4), whose DIII sequences vary by up to 49%.
Dany Spaggiari et al.
Journal of chromatography. A, 1371, 244-256 (2014-12-03)
The goal of this study was to evaluate the combination of powerful chromatographic methods and compact single quadrupole MS device for simple in vitro cytochrome P450 (CYP) inhibition assay, instead of more expensive triple quadrupole MS/MS detectors. For this purpose
Hui Boon Teh et al.
Journal of chromatography. A, 1383, 112-120 (2015-02-05)
A new, highly sensitive and reliable two-dimensional matrix elimination ion chromatography (IC) method was developed for simultaneous detection of bromate, chlorite and five haloacetic acids. This method combined the conventional IC in first dimension with capillary IC in the second
Kentaro Ono et al.
Journal of neurophysiology, 113(9), 3345-3355 (2015-03-20)
Differential thermal nociception across inbred mouse strains has genetic determinants. Thermal nociception is largely attributed to the heat/capsaicin receptor transient receptor potential vanilloid 1 (TRPV1); however, the contribution of this channel to the genetics of thermal nociception has not been
Pablo Serret et al.
Nature communications, 6, 6961-6961 (2015-04-25)
Despite its importance to ocean-climate interactions, the metabolic state of the oligotrophic ocean has remained controversial for >15 years. Positions in the debate are that it is either hetero- or autotrophic, which suggests either substantial unaccounted for organic matter inputs
Zahra Sharifalhoseini et al.
Journal of colloid and interface science, 455, 110-116 (2015-06-10)
The pure phase of the ZnO nanoparticles (NPs) as anticorrosive pigments was synthesized by the sonication method. The surfaces of the sono-synthesized nanoparticles were covered with the protective silica layer. The durability of the coated and uncoated ZnO NPs in
Bastian Roth et al.
Pflugers Archiv : European journal of physiology, 467(8), 1835-1849 (2014-10-04)
To understand the impact of ionizing irradiation from diagnostics and radiotherapy on cells, we examined K(+) channel activity before and immediately after exposing cells to X-rays. Already, low dose in the cGy range caused in adenocarcinoma A549 cells within minutes
Gabriele Indrisiunaite et al.
Journal of molecular biology, 427(9), 1848-1860 (2015-01-27)
We have studied the pH dependence of the rate of termination of bacterial protein synthesis catalyzed by a class-1 release factor (RF1 or RF2). We used a classical quench-flow technique and a newly developed stopped-flow technique that relies on the
Claudia Böhm et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 35(40), 13608-13618 (2015-10-09)
Cortical and hippocampal oscillations play a crucial role in the encoding, consolidation, and retrieval of memory. Sharp-wave associated ripples have been shown to be necessary for the consolidation of memory. During consolidation, information is transferred from the hippocampus to the
Shigeo Hayashi et al.
Journal of enzyme inhibition and medicinal chemistry, 29(6), 846-867 (2014-02-13)
Because of the pivotal role of cyclooxygenase (COX) in the inflammatory processes, non-steroidal anti-inflammatory drugs (NSAIDs) that suppress COX activities have been used clinically for the treatment of inflammatory diseases/syndromes; however, traditional NSAIDs exhibit serious side-effects such as gastrointestinal damage
Todd M Mowery et al.
Cerebral cortex (New York, N.Y. : 1991), 25(8), 2083-2094 (2014-02-21)
Sensory deprivation can induce profound changes to central processing during developmental critical periods (CPs), and the recovery of normal function is maximal if the sensory input is restored during these epochs. Therefore, we asked whether mild and transient hearing loss
Christoph-Cornelius Brombach et al.
Analytical and bioanalytical chemistry, 407(3), 973-981 (2014-10-17)
Mercury (Hg) is a global pollutant which occurs in different species, with methylmercury (MeHg) being the critical compound due to its neurotoxicity and bioaccumulation through the food chain. Methods for trace speciation of MeHg are therefore needed for a vast
Katharina Papsdorf et al.
BMC genomics, 16, 662-662 (2015-09-04)
Protein aggregation and its pathological effects are the major cause of several neurodegenerative diseases. In Huntington's disease an elongated stretch of polyglutamines within the protein Huntingtin leads to increased aggregation propensity. This induces cellular defects, culminating in neuronal loss, but
Dany Spaggiari et al.
Analytical and bioanalytical chemistry, 406(20), 4875-4887 (2014-06-05)
The cocktail approach is an advantageous strategy used to monitor the activities of several cytochromes P450 (CYPs) in a single test to increase the throughput of in vitro phenotyping studies. In this study, a cocktail mixture was developed with eight
Shiv Shankar et al.
Physical chemistry chemical physics : PCCP, 17(33), 21517-21524 (2015-07-30)
This study illustrates a facile strategy for efficient immobilization of enzymes on a metal nanoparticle surface. The strategy proposed here enables the enzymatic activity to be retained while increasing the enzyme thermostability. It is demonstrated that the use of a
Cecilia Bender et al.
International journal of food sciences and nutrition, 66(5), 553-558 (2015-05-27)
The aim of our study was to determine the antioxidant activities, cytotoxicity and proliferative properties in Stevia rebaudiana leaves and stems. Leaves extracts exhibited a higher antioxidant activity than stems extract, through oxygen radical absorbance capacity (ORAC) and cellular antioxidant
Su-yang Wang et al.
Acta pharmacologica Sinica, 36(12), 1444-1450 (2015-11-26)
To investigate the mechanisms underlying the activation of ATP-sensitive potassium channels (K(ATP)) by iptakalim in cultured rat mesenteric microvascular endothelial cells (MVECs). Whole-cell KATP currents were recorded in MVECs using automated patch clamp devices. Nucleotides (ATP, ADP and UDP) were
Mirian E Casco et al.
Nature communications, 6, 6432-6432 (2015-03-03)
Natural methane hydrates are believed to be the largest source of hydrocarbons on Earth. These structures are formed in specific locations such as deep-sea sediments and the permafrost based on demanding conditions of high pressure and low temperature. Here we
David Ilko et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 94, 569-574 (2014-12-03)
The fatty acid (FA) composition of polysorbate 80 (PS80), a sorbitan oleic acid ester copolymerized with about 20mole of ethylene oxide, is typically characterized by gas chromatography. Here, an alternative method was developed. After saponification with potassium hydroxide the FA
Ahmed Lazrak et al.
American journal of physiology. Lung cellular and molecular physiology, 308(9), L891-L903 (2015-03-10)
Chlorine (Cl2) inhalation induces severe oxidative lung injury and airway hyperresponsiveness (AHR) that lead to asthmalike symptoms. When inhaled, Cl2 reacts with epithelial lining fluid, forming by-products that damage hyaluronan, a constituent of the extracellular matrix, causing the release of
Ranganathan Arunkumar et al.
Journal of pharmaceutical sciences, 104(6), 2085-2093 (2015-04-01)
Lutein bioavailability is limited because of its poor aqueous solubility. In this study, lutein-poly (lactic-co-glycolic acid) (PLGA)-polyethylene glycol (PEG) nanocapsules were prepared to improve the solubility, bioavailability, and anticancer property of lutein. The scanning electron microscopy and dynamic light scattering
Jerald E Dumas et al.
Tissue engineering. Part A, 20(1-2), 115-129 (2013-08-15)
There is a compelling clinical need for bone grafts with initial bone-like mechanical properties that actively remodel for repair of weight-bearing bone defects, such as fractures of the tibial plateau and vertebrae. However, there is a paucity of studies investigating
Kriti Dubey et al.
Amino acids, 47(12), 2551-2560 (2015-07-22)
Here, we have strategically synthesized stable gold (AuNPs(Tyr), AuNPs(Trp)) and silver (AgNPs(Tyr)) nanoparticles which are surface functionalized with either tyrosine or tryptophan residues and have examined their potential to inhibit amyloid aggregation of insulin. Inhibition of both spontaneous and seed-induced
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