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显示 1-30 #N/A 182 条结果 关于 "F2003" 范围 论文
Tsukasa Waki et al.
Chemical & pharmaceutical bulletin, 60(1), 37-44 (2012-01-10)
The antioxidant activities of flavonoids and their glycosides were measured with the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH radical, DPPH(·)) scavenging method. The results show that free hydroxyl flavonoids are not necessarily more active than O-glycoside. Quercetin and kaempferol showed higher activity than
Yanjun Zhang et al.
PloS one, 12(9), e0185075-e0185075 (2017-09-28)
Cotton is sensitive to waterlogging stress, which usually results in stunted growth and yield loss. To date, the molecular mechanisms underlying the responses to waterlogging in cotton remain elusive. Cotton was grown in a rain-shelter and subjected to 0 (control)-
Chiara Cavaliere et al.
Journal of agricultural and food chemistry, 67(17), 4885-4896 (2019-04-13)
Liquid chromatography coupled to low-resolution mass spectrometry (LRMS) has historically been a popular approach for compound quantitation. Recently, high-resolution mass spectrometry (HRMS) technical developments led to the introduction of new approaches for quantitative analysis. Whereas the performances of HRMS have
Xiaodan Zhao et al.
Water research, 119, 126-135 (2017-04-30)
The kinetics for the reactions of hypoiodous acid (HOI) with various phenols (phenol, 4-nitrophenol, 4-hydroxybenzoic acid), 3-oxopentanedioic acid (3-OPA) and flavone were investigated in the pH range of 6.0-11.0. The apparent second order rate constants for the reactions of HOI
Yosuke Nishizaki et al.
Bioorganic & medicinal chemistry letters, 19(16), 4706-4710 (2009-07-14)
The effect of 32 flavonoids on androgen (AR) and glucocorticoid receptors (GR) was investigated using an MDA-kb2 human breast cancer cell line to predict potential AR and GR activities. Among them, 5-hydroxyflavone (7) had the highest AR antagonistic activity with
Angelika A Adamus-Grabicka et al.
Molecules (Basel, Switzerland), 25(7) (2020-04-05)
A series of 3-benzylidenechrmanones 1, 3, 5, 7, 9 and their spiropyrazoline analogues 2, 4, 6, 8, 10 were synthesized. X-ray analysis confirms that compounds 2 and 8 crystallize in a monoclinic system in P21/n space groups with one and
Tanya Welgemoed et al.
Frontiers in plant science, 11, 191-191 (2020-04-02)
Gray leaf spot (GLS) disease in maize, caused by the fungus Cercospora zeina, is a threat to maize production globally. Understanding the molecular basis for quantitative resistance to GLS is therefore important for food security. We developed a de novo
Shouchuang Wang et al.
Scientific reports, 7(1), 10549-10549 (2017-09-07)
Flavonoids are widely distributed in plants and play important roles in many biological processes. Citrus fruits are rich dietary sources of flavonoids. However, there have been very few reports about the comprehensive metabolic profile and natural diversity of flavonoids in
Laura A Chatham et al.
Food chemistry, 310, 125734-125734 (2019-12-04)
Anthocyanins are a major source of natural red colorants but currently face difficulties matching the hue range, stability, and affordability of synthetic options. Purple corn offers an FDA and EFSA-approved economical source of anthocyanin-based colorants. A C-glycosyl flavone and anthocyanin
Seong Min Kim et al.
International journal of molecular medicine, 44(5), 1741-1752 (2019-09-24)
In the present study, a polyphenolic mixture was isolated from Seomae mugwort (SM; a native Korean variety of Artemisia argyi H.) via extraction with aqueous 70% methanol followed by the elution of ethyl acetate over a silica gel column. Each
Yaoyao Peng et al.
Antioxidants (Basel, Switzerland), 8(5) (2019-05-24)
Feijoa fruit is becoming increasingly popular, yet limited studies have focused on the antioxidant capacity and phenolic profiling of its extracts. In this research, optimization of phenolic extraction from feijoa flesh, peel, and whole fruit from four New Zealand grown
Jie Bai et al.
Toxicology and applied pharmacology, 369, 49-59 (2019-02-23)
Flavonoids are a class of polyphenol antioxygen, despite various known biological activities and therapeutic potential, scattered but not much is known about their interactions with drug transporters. P-glycoprotein (P-gp) as a cellular defense mechanism by effluxing its substrates has been
Mariana Torres-Piedra et al.
Bioorganic & medicinal chemistry, 19(1), 542-546 (2010-12-07)
In our search for potential antihypertensive agents, a series of structurally-related flavonoids was screened. Ex vivo and in vitro biological evaluations indicated that compounds 1-7 displayed an important vasorelaxant effect on the endothelium-intact (E(+)) and -denuded (E(-)) aortic rings test.
Yan Hui Yang et al.
Plant cell reports, 40(2), 375-391 (2021-01-05)
RgC4H promotes phenolic accumulation in R. glutinosa, activating the molecular networks of its antioxidant systems, and enhancing the tolerance to oxidative stresses exposed to drought, salinity and H2O2 conditions. Rehmannia glutinosa is of great economic importance in China and increasing R.
Liu Chunlei et al.
Pakistan journal of pharmaceutical sciences, 28(4 Suppl), 1449-1456 (2015-10-04)
Total proteins of Changbai Mountain hazelnut were extracted and then enzymolysed in solution. The mixture of peptides was separated on chromatograph and identified by shotgun proteomics approach. The identified proteins were analyzed by bioinformatics, 303 proteins were identified, of which
Lei Zhang et al.
Viruses, 11(9) (2019-09-01)
Shading in the intercropping system is a major abiotic factor which influences soybean growth and development, while soybean mosaic virus (SMV) is a biotic factor that limits the yield and quality of soybean. However, little is known about the defense
Alberto Modelli et al.
Physical chemistry chemical physics : PCCP, 15(5), 1588-1600 (2012-12-18)
The gas-phase empty-level structures and formation of anion states via resonance attachment of low-energy electrons to the flavonoids naringenin (III), quercetin (IV) and myricetin (V) and the smaller reference molecules chromone (I) and flavone (II) are investigated experimentally for the
Xiaoqing Fan et al.
Toxicology, 437, 152445-152445 (2020-04-08)
Organic anion transporting polypeptide 1B1 (OATP1B1), a liver-specific uptake transporter, was associated with drug induced liver injury (DILI). Screening and identifying potent OATP1B1 inhibitors with little toxicity is of great value in reducing OATP1B1-mediated DILI. Flavonoids are a group of
Brigida D'Abrosca et al.
Natural product research, 27(4-5), 356-363 (2012-06-20)
The antioxidant properties of six flavones from Teucrium polium L., one of them isolated for the first time, have been established through the determination of their abilities to inhibit free radicals using DPPH, ABTS radicals and ORAC test. The structure
L M Ching et al.
Cancer research, 54(4), 870-872 (1994-02-15)
The investigational antitumor agent, 5,6-dimethylxanthenone-4-acetic acid (5,6-MeXAA; NSC 640488) induced greater expression of tumor necrosis factor-alpha (TNF-alpha) mRNA in murine spleen cells in vivo at its optimal dose of 27.5 mg/kg than flavone acetic acid (FAA; NSC 347512) at its
Wusigale et al.
Journal of agricultural and food chemistry, 68(1), 340-350 (2019-12-25)
Folic acid, a synthetic form of folate, is a water-soluble vitamin that is essential during periods of rapid cell division and growth. However, it decomposes upon ultraviolet irradiation to form inactive photoproducts. In this study, the protective effect and mechanisms
Kavita Savalekar et al.
Journal of food science and technology, 56(7), 3300-3312 (2019-07-06)
The phenolic compounds play an important role in production of quality grapes and wines. The current investigation focused on optimization of an extraction method for targeted analysis of 33 phenolic compounds in grapes by liquid chromatography tandem mass spectrometry (LC-MS/MS).
M T Barrellier
La Revue de medecine interne, 13(1), 49-57 (1992-01-01)
More than hundred medical treatments for lymphedema have been described. This very high number shows the evidence of difficulties: lymphatics are very small vessels, under low pression and velocity respondent to spontaneous quiet lymphatic contractions. The treatments can be listed
Markus A Lill et al.
Journal of medicinal chemistry, 48(18), 5666-5674 (2005-09-02)
We investigated the influence of induced fit of the androgen receptor binding pocket on free energies of ligand binding. On the basis of a novel alignment procedure using flexible docking, molecular dynamics simulations, and linear-interaction energy analysis, we simulated the
Meilin Li et al.
Journal of agricultural and food chemistry, 67(14), 4043-4053 (2019-03-19)
Cold plasma technology offers new opportunities to the decontamination and preservation of fruits and vegetables. In the present research, strawberries were cut into four wedges and then treated with dielectric barrier discharge plasma at 45 kV for 1 min and
Yu-Wan Ni et al.
Plants (Basel, Switzerland), 9(5) (2020-05-21)
Functional constituents in the leaves of Passiflora plants contain antidepressant and antianxiety effects which are beneficial to human health and fitness. The objective of this study was to investigate leaf growth, physiological parameters, and secondary metabolite contents of Tainung No.
Olga Olejnik et al.
Polymers, 12(1) (2020-01-08)
The aim of this research was to enhance thermal stability of aliphatic polyester blends via incorporation of selected natural antioxidants of plant origin. Thermal methods of analysis, including differential scanning calorimetry (DSC) and thermogravimetry (TGA), are significant tools for estimating
M Ontiveros et al.
Biochemical pharmacology, 166, 1-11 (2019-05-10)
Research on flavonoids from plant sources has recently sparked increasing interest because of their beneficial health properties. Different studies have shown that flavonoids change the intracellular Ca2+ homeostasis linked to alterations in the function of mitochondria, Ca2+ channels and Ca2+
Andrew Baxter et al.
Bioorganic & medicinal chemistry letters, 21(2), 777-780 (2010-12-25)
The first known non-covalent inhibitors of rhinovirus 3C protease (3CP) have been identified through fragment based screening and hit identification activities.
Jongbin Park et al.
Journal of microbiology and biotechnology, 30(8), 1195-1206 (2020-05-20)
Beringraja pulchra, Cham-hong-eo in Korean, is a mottled skate which is belonging to the cartilaginous fish. Although this species is economically valuable in South Korea as an alkalinefermented food, there are few microbial studies on such fermentation. Here, we analyzed
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