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Showing 1-30 of 4290 results for "320390" within Papers
D Q Li et al.
Journal of chromatography. A, 1345, 50-56 (2014-05-06)
Xanthine oxidase (XO) can catalyze hypoxanthine and xanthine to generate uric acid and reactive oxygen species (ROS), including superoxide anion radical (O₂(•-)) and hydrogen peroxide. XO inhibitors and free radical scavengers are beneficial to the treatment of gout and many
Yuanyuan Zhou et al.
Molecules (Basel, Switzerland), 20(10), 19252-19262 (2015-10-28)
Among the classes of identified natural products, triterpenoids, one of the largest families, have been studied extensively for their diverse structures and variety of biological activities, including antitumor effects. In the present study, a phytochemical study of the green walnut
Ritwika Ray et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(47), 15618-15624 (2014-10-07)
The present article describes novel oxidative protocols for direct esterification of alcohols. The protocols involve successful demonstrations of both "cross" and "self" esterification of a wide variety of alcohols. The cross-esterification proceeds under a simple transition-metal-free condition, containing catalytic amounts
Dafni Dimakopoulou-Papazoglou et al.
Food microbiology, 53(Pt B), 76-81 (2015-12-19)
The effect of pH and water activity (aw) on the formation of biofilm by Salmonella enterica ser. Newport, previously identified as a strong biofilm producer, was assessed. Biofilm formation was evaluated in tryptone soy broth at 37 °C and at different
Weihao Wang et al.
Steroids, 95, 51-65 (2015-01-13)
Dioscorea panthaica is a traditional Chinese medicinal herb used in the treatment of various physiological conditions, including cardiovascular disease, gastropathy and hypertension. Steroidal saponins (SS) are the main active ingredients of this herb and have effects on myocardial ischemia and
Er-Bao Zhang et al.
Medical oncology (Northwood, London, England), 31(5), 914-914 (2014-03-29)
Gastric cancer (GC) is one of the most frequent cancers worldwide. Recent studies have shown that long noncoding RNAs (lncRNAs) play critical roles in multiple biological processes, including oncogenesis. The present study aimed to evaluate the potential role of lncRNA
Mamatha Garige et al.
Biochemical and biophysical research communications, 467(2), 275-281 (2015-10-10)
The molecular basis for nutraceutical properties of the polyphenol curcumin (Curcuma longa, Turmeric) is complex, affecting multiple factors that regulate cell signaling and homeostasis. Here, we report the effect of curcumin on cellular and developmental mechanisms in the eukaryotic model
Erik Hanff et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 970, 44-52 (2014-09-23)
A specific, sensitive and fast LC-MS/MS method with positive electrospray ionization for the quantitative determination of nitrite in human plasma is reported. Added [(15)N]nitrite served as the internal standard (IS). Endogenous nitrite and IS were converted to their S-nitrosoglutathione (GSNO)
Jessica A Cottrell et al.
Analytical biochemistry, 469, 34-42 (2014-12-03)
This article describes a new method for extracting RNA, protein, and lipid mediators from a single tissue specimen. Specifically, mouse bone fracture callus specimens were extracted into a single solution that was processed using three different procedures to measure messenger
Martina Bolechová et al.
Food chemistry, 170, 265-270 (2014-10-13)
Alkaloids known as secondary metabolites are grouped by typical structural characteristics into large families such as pyrrolizidine alkaloids (PAs) comprising more than 350 individual heterocyclic compounds. The PAs present a serious health risk to human and livestock; hence there is
Chengcheng Peng et al.
Biomedical chromatography : BMC, 29(3), 425-436 (2014-07-22)
Shexiang Baoxin pills (SBP) are a traditional Chinese medicine that are used for treating coronary heart disease. Ginsenosides are the main effective components of SBP, but a comprehensive and deep pharmacokinetic study of ginsenosides in SBP, including multiple dosing and
Ana R Ribeiro et al.
Journal of chromatography. A, 1418, 140-149 (2015-10-04)
The fate and removal of organic micropollutants in the environment is a demanding issue evidenced by the recent European policy. This work presents an analytical method for the trace quantification of 37 micropollutants including Priority Substances (Directive 2013/39/EU), substances of
Eun Ju Choi et al.
Chemistry & biology, 22(9), 1270-1279 (2015-08-25)
Low-nutrient media and long incubation times facilitated the cultivation of 20 taxonomically diverse Gram-negative marine bacteria within the phyla Bacteroidetes and Proteobacteria. These strains comprise as many as three new families and include members of clades that had only been
Amandeep Kaur et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 69(3-4), 110-116 (2014-05-31)
The antileishmanial activity of extracts and phytoconstituents of Moringa oleifera Lam. was investigated in vitro against promastigotes of Leishmania donavani. The 70% ethanolic extract of roots and the methanolic extract of leaves showed moderate inhibitory activity with IC50 values of
Paul R Elliott et al.
Scientific reports, 5, 16826-16826 (2015-11-21)
This paper proposes a mechanism of controlling the diameter and separation of metallic nanorods from physical vapor deposition through self-organized seeds and experimentally demonstrates the feasibility using Ag as the prototype metal, In as the seed, and Si the substrate.
Dapeng Yan et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(48), 14942-14947 (2015-12-03)
FoxP3(+) T regulatory (Treg) cells have a fundamental role in immunological tolerance, with transcriptional and functional phenotypes that demarcate them from conventional CD4(+) T cells (Tconv). Differences between these two lineages in the signaling downstream of T-cell receptor-triggered activation have
Francesca Catenia et al.
Natural product communications, 10(11), 1833-1838 (2016-01-12)
The phytochemical investigation of the methanolic extract of the white rot fungus Meripilus giganteus resulted in the isolation and identification of complex mixtures of free fatty acids (1), monoacylglycerols (2), cerebrosides (3), ergosterol (4) and ergosterol peroxide (5). The structures
Masazumi Tamura et al.
Nature communications, 6, 8580-8580 (2015-10-06)
Multidentate materials formed by simply mixing heterogeneous and homogeneous components are promising for construction of versatile active sites on the surface of heterogeneous compounds, however, to the best of our knowledge, there are no reports on such materials. Self-assembly of
Michelle L Hladik et al.
The Science of the total environment, 542(Pt A), 469-477 (2015-11-02)
The awareness of insects as pollinators and indicators of environmental quality has grown in recent years, partially in response to declines in honey bee (Apis mellifera) populations. While most pesticide research has focused on honey bees, there has been less
Mohammad Asif Iqbal et al.
Journal of chromatography. A, 1373, 149-158 (2014-12-04)
In the analysis of biogenic volatile organic compounds (BVOCs) in ambient air, preparation of a sub-ppb level standard is an important factor. This task is very challenging as most BVOCs (e.g., monoterpenes) are highly volatile and reactive in nature. As
S Nath et al.
International journal of impotence research, 27(6), 215-220 (2015-08-28)
Ricinus communis L. has ethnopharmacological contraceptive reputation but its stem bark has unexplored mechanisms of action in female reproductive system. In the present study, the effect of methanolic and aqueous extracts from the stem bark of the plant was examined
Fengxia Wu et al.
Aquatic toxicology (Amsterdam, Netherlands), 155, 43-51 (2014-06-30)
We studied the effects of endocrine disrupting compounds nonylphenol (NP) and letrozole (LE) on the male goldfish Carassius aumtus. Exposure to NP (20 μg l(-1)) alone caused a significant up-regulation in the expression of aromatase, estrogen receptors and vitellogenin (VTG)
Tânia Petta et al.
Enzyme and microbial technology, 58-59, 36-43 (2014-04-16)
Lipid mediators such as the leukotrienes, resolvins and protectins have been considered excellent models for the development of new anti-inflammatory drugs, due to their high potentiality. Nevertheless, only tiny amounts are available from natural sources and they have to be
Jianqing Ruan et al.
Chemical research in toxicology, 27(6), 1030-1039 (2014-05-20)
Pyrrolizidine alkaloids (PAs) are natural toxins widely distributed in plants. The toxic potencies of different PAs vary significantly. PAs are mono- or diesters of necine acids with a necine base. On the basis of the necine bases, PAs are classified
Masaru Sugita et al.
The AAPS journal, 16(5), 1119-1127 (2014-07-30)
This study sought to understand the reasons for the bioinequivalence of a newly developed generic product of pioglitazone hydrochloride and to improve its formulation so that it is equivalent to that of the reference listed drug (RLD). In this clinical
Sergey Kosourov et al.
Applied and environmental microbiology, 80(18), 5807-5817 (2014-07-13)
We have investigated two approaches to enhance and extend H2 photoproduction yields in heterocystous, N2-fixing cyanobacteria entrapped in thin alginate films. In the first approach, periodic CO2 supplementation was provided to alginate-entrapped, N-deprived cells. N deprivation led to the inhibition
Yunfei Zhan et al.
Experimental and therapeutic medicine, 9(1), 11-16 (2014-12-03)
Pulmonary tuberculosis (PTB) is a high burden infectious disease in China. The immune function is damaged in patients with diabetes mellitus (DM) who are easy to infect with
Valentino Ruggieri et al.
BMC plant biology, 14, 337-337 (2014-12-04)
Genome Wide Association Studies (GWAS) have been recently used to dissect complex quantitative traits and identify candidate genes affecting phenotype variation of polygenic traits. In order to map loci controlling variation in tomato marketable and nutritional fruit traits, we used
Iain M McIntyre et al.
Journal of analytical toxicology, 39(2), 156-159 (2014-11-29)
A 20-year-old man, a college student, became unresponsive in front of his girlfriend. He was known to consume alcohol and take an unknown drug at some point while in attendance at a local music festival earlier in the day/evening. Upon
Meei-Hua Lin et al.
The Journal of investigative dermatology, 135(2), 462-470 (2014-09-04)
Fatty acid transport protein (FATP) 4 is one of a family of six FATPs that facilitate long- and very-long-chain fatty acid uptake. Mice lacking FATP4 are born with tight, thick skin and a defective barrier; they die neonatally because of
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