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Showing 1-30 of 206 results for "K0133" within Papers
Shingo Arioka et al.
Bioorganic & medicinal chemistry, 18(4), 1633-1640 (2010-01-26)
The protozoan Trypanosoma cruzi, the causative agent of Chagas' disease, can infect the heart, causing cardiac arrest frequently followed by death. To treat this disease, a potential molecular drug target is T. cruzi trans-sialidase (TcTS). However, inhibitors found to date
Jung-Heun Ha et al.
The Journal of nutrition, 144(6), 799-806 (2014-04-05)
Inflammation and endoplasmic reticulum (ER) stress are common denominators for vision-threatening diseases such as diabetic retinopathy and age-related macular degeneration. Based on our previous study, supplementation with muscadine grape polyphenols (MGPs) alleviated systemic insulin resistance and proinflammatory responses. In this
Nguyen Xuan Nhiem et al.
Bioorganic & medicinal chemistry letters, 21(6), 1777-1781 (2011-03-01)
One new ursane-type triterpenoid glycoside, asiaticoside G (1), five triterpenoids, asiaticoside (2), asiaticoside F (3), asiatic acid (4), quadranoside IV (5), and 2α,3β,6β-trihydroxyolean-12-en-28-oic acid 28-O-[α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl] ester (6), and four flavonoids, kaempferol (7), quercetin (8), astragalin (9), and isoquercetin (10) were
Partha Pratim Roy et al.
Bioorganic chemistry, 56, 1-7 (2014-06-03)
The objective of the present work was tantamount to explain the antiperoxidative potential and structural requirements of twenty-eight structurally diverse classes of antioxidants on docetaxel-induced lipid peroxidation. Both experimental and computational approaches were taken to the work. The experiments were
David J Sukovich et al.
ACS synthetic biology, 4(7), 833-841 (2015-01-27)
Traditional enzyme characterization methods are low-throughput and therefore limit engineering efforts in synthetic biology and biotechnology. Here, we propose a DNA-linked enzyme-coupled assay (DLEnCA) to monitor enzyme reactions in a high-throughput manner. Throughput is improved by removing the need for
Tuvshinjargal Gotovdorj et al.
Journal of Korean medical science, 29(9), 1188-1198 (2014-09-24)
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) can induce drug transporter genes such as the ATP-binding cassette G member 2 (ABCG2), which contributes to multidrug resistance. We investigated the effect of TCDD pretreatment on drug transporters induction from cancer cells of various origins. Cell viabilities
Iris L K Wong et al.
Journal of medicinal chemistry, 52(17), 5311-5322 (2009-09-04)
Here we showed that bivalency approach is effective in modulating multidrug resistance protein 1 (MRP1/ABCC1)-mediated doxorubicin (DOX) and etoposide (VP16) resistance in human 2008/MRP1 ovarian carcinoma cells. Flavonoid dimers bearing five or six ethylene glycol (EG) units with 6-methyl (4e
I-Hsiao Chen et al.
Journal of natural products, 69(11), 1543-1546 (2006-11-28)
Five new triterpenoids, microfokienoxanes A-D (1-4) and 3beta,28-dihydroxy-11alpha-methoxyurs-12-ene (5), were isolated and identified from the leaves of Microtropis fokienensis, along with nine known compounds. The structures of the new compounds were elucidated by spectroscopic methods. The compounds obtained in this
Vasilis P Androutsopoulos et al.
Journal of natural products, 72(8), 1390-1394 (2009-07-16)
Flavonoids have often been associated with cancer prevention and activity of the human cytochrome P450 enzymes CYP1A1 and CYP1B1 with the occurrence of cancer. The flavones eupatorin (1) and cirsiliol (2) enhanced CYP1 enzyme activity in a concentration-dependent manner in
Wei Zhang et al.
PloS one, 9(10), e110429-e110429 (2014-10-21)
Flavonoids are widely distributed natural products with broad biological activities. Apigenin is a dietary flavonoid that has recently been demonstrated to interact with heterogeneous nuclear ribonucleoproteins (hnRNPs) and interferes with their RNA editing activity. We investigated whether apigenin possessed antiviral
Marco Clericuzio et al.
Planta medica, 78(15), 1639-1644 (2012-09-01)
Two new glycosylated and acylated flavonols, viz. quercetin-3-O-[(6-caffeoyl)-β-glucopyranosyl (1 → 3) α-rhamnopyranoside]-7-O-α-rhamnopyranoside (2), and kaempferol-3-O-[(6-caffeoyl)-β-glucopyranosyl (1 → 3) α-rhamnopyranoside]-7-O-α-rhamnopyranoside (3), together with the known quercetin-3-O-methyl ether (1), were isolated from the aerial parts of the fern Ophioglossum vulgatum L. Their structures were established by
Do Thi Ha et al.
Bioorganic & medicinal chemistry letters, 20(20), 6076-6081 (2010-09-09)
Among nine flavonols (1-9) obtained from Sophorae Flos, we first isolated compounds 4, 5, 8, and 9. These isolates (1-9) were evaluated for the phosphorylation of AMPK and ACC. Administered at 10 μM, 9 possessed high potent activity. Compound 9
Jun-Hui Choi et al.
Biochimie, 115, 177-186 (2015-06-16)
The objectives of the present study were to investigate whether kaempferol affects pro-coagulant proteinase activity, fibrin clot formation, blood clot and thrombin (or collagen/epinephrine)-stimulated platelet activation, thrombosis, and coagulation in ICR (Imprinting Control Region) mice and SD (Sprague-Dawley) rats. Kaempferol
Kiyofumi Ninomiya et al.
Bioorganic & medicinal chemistry letters, 17(11), 3059-3064 (2007-04-03)
The 80% aqueous acetone extracts from the fruit (50 mg/kg/d) and seeds (12.5 and 25 mg/kg/d) of Rosa canina L., but not from the pericarps, were found to show substantial inhibitory effect on the gain of body weight and/or weight
Clotilde Marín et al.
Journal of natural products, 72(6), 1069-1074 (2009-06-06)
A set of flavonoids from Consolida oliveriana, kaempferol (1), quercetin (2), trifolin (3), and acetyl hyperoside (5) and their O-acetyl derivatives (1a, 2a, 3a), and octa-O-acetylhyperoside (4) showed leishmanicidal activity against promastigote as well as amastigote forms of Leishmania spp.
Ram Jee Sharma et al.
Natural product communications, 10(6), 969-976 (2015-07-23)
Eugenia jambolana, commonly known as 'jamun' or Indian blackberry, is an important source of bioactive compounds. All parts of the plant like stem bark, leaves, flower, fruit pulp and seeds are traditionally used for many diseases. Metabolite profiling in medicinally
Mahmoud Nawwar et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 70(1-2), 39-43 (2015-04-10)
Chemical investigation of the extract of the whole Ammania auriculata plant resulted in the identification of 13 polyphenols, including the hitherto unknown flavonoids, kaempferol 3-O-β-(6″-galloylglucopyranoside)-7-O-β-glucopyranoside, and its quercetin analogue. The structures of all isolates were elucidated by conventional methods, spectroscopic
Gábor Borbély et al.
Journal of medicinal chemistry, 53(18), 6758-6762 (2010-08-25)
NOX enzymes are the major contributors in many oxidative damage related diseases. Unfortunately, at present no specific NOX inhibitor is available. Here, we describe the discovery and development of novel NOX4 inhibitors. Compound libraries were tested in a cell-based assay
Maja Katalinić et al.
European journal of medicinal chemistry, 45(1), 186-192 (2009-11-03)
Selected flavonoids: galangin, kaempferol, quercetin, myricetin, fisetin, apigenin, luteolin and rutin, reversibly inhibited human butyrylcholinesterase (BChE, EC 3.1.1.8). Inhibition potency of the flavonoids we attributed to their chemical structure, i.e., the number of OH groups and their side on the
Andrei I Khlebnikov et al.
Bioorganic & medicinal chemistry, 15(4), 1749-1770 (2006-12-15)
Quantitative structure-activity relationship (QSAR) models are useful in understanding how chemical structure relates to the biological activity of natural and synthetic chemicals and for design of newer and better therapeutics. In the present study, 46 flavonoids and related polyphenols were
Kang Mo Ku et al.
Journal of the science of food and agriculture, 94(10), 2090-2096 (2013-12-18)
Spray treatment of methyl jasmonate (MeJA) has been shown to increase glucosinolate (GS) concentrations and health-promoting activity in Brassica vegetables. Since there is no reported standardized protocol, several MeJA treatment studies have been conducted to maximize human health bioactivity using
Iulia Matei et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 96, 709-715 (2012-08-14)
The experimental induced circular dichroism (ICD) and absorption spectra of the achiral flavonoid kaempferol upon binding to human serum albumin (HSA) were correlated to electronic CD and UV-vis spectra theoretically predicted by time-dependent density functional theory (TDDFT). The neutral and
Xiao-Lan Lv et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 35(6), 917-919 (2012-12-15)
To study the chemical constituents of the roots of Vaccinium bracteatum. The constituents were separated and purified with chromatographic methods (including silica gel, Sephadex LH-20 and RP-18 column chromatography), and their structures were determined by spectroscopic methods (including MS, 1H-NMR
Mohamed A Farag et al.
Phytochemistry, 119, 41-50 (2015-09-28)
Bauhinia L. (Fabaceae) comprises ca. 300-350 plant species, many of which are traditionally used in folk medicine for their antidiabetic, antioxidant and anti-inflammatory effects. Bauhinia s.l. recently has been subdivided into 9 genera based on phylogenetic data: Bauhinia s.str., Barklya
Lois A Annab et al.
Differentiation; research in biological diversity, 84(4), 330-343 (2012-08-22)
The heterogeneous nature of stem cells is an important issue in both research and therapeutic use in terms of directing cell lineage differentiation pathways, as well as self-renewal properties. Using flow cytometry we have identified two distinct subpopulations by size
M L Kuo et al.
Cancer letters, 87(1), 91-97 (1994-11-25)
Fifteen flavonoids were employed to examine their effects on the morphological changes, foci formation in soft agar and cellular growth in v-H-ras-transformed NIH3T3 cells. The data presented here demonstrated that only three specific flavonoids--apigenin, kaempferol, and genistein--exhibited the reverting effect
Chia-Lin Lee et al.
Bioorganic & medicinal chemistry letters, 20(24), 7354-7357 (2010-11-26)
Two novel derivatized peptides, designated as ixorapeptide I (1) and ixorapeptide II (2), in addition to 28 other known compounds, were isolated from the MeOH extract of Ixora coccinea using bioassay-guided fractionation. The structures of metabolites 1 and 2 were
Eglė Zelbienė et al.
Acta pharmaceutica (Zagreb, Croatia), 65(2), 181-189 (2015-05-27)
The aim of this study was to investigate the effects of polyacrylic acid polymers (Ultrez 10, Ultrez 20, Carbopol 980, and Carbopol 940) on the viscosity and the in vitro permeation of phenolic compounds from the gel prepared from natural
Saikh Mohammad Wabaidur et al.
Journal of separation science, 38(15), 2597-2606 (2015-05-20)
An ultra high performance liquid chromatography with mass spectrometry method has been developed for the simultaneous separation, identification and determination of 22 phenolic constituents in honey from various floral sources from Yemen. Solid-phase extraction was used for extraction of the
Yun Chao et al.
Chemical & pharmaceutical bulletin, 60(9), 1171-1175 (2012-09-15)
In this study, submicron emulsions have been employed as a carrier for the topical application of kaempferol. The effect of components of submicron emulsions on the physicochemical properties and permeation capability of drug were evaluated. In case of drug-loaded submicron
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