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Marta Gazal et al.
Brain research bulletin, 108, 10-17 (2014-08-12)
Chronic stressful stimuli influence disease susceptibility to depression, cardiovascular, metabolic and neurodegenerative disorders. The present work investigated antidepressant and antioxidant properties of the aqueous extract from Cecropia pachystachya in a mouse model of chronic unpredictable stress (CUS). Our results indicated
Ryoko Takasawa et al.
Bioorganic & medicinal chemistry, 16(7), 3969-3975 (2008-02-09)
Glyoxalase I (GLO I) is the rate-limiting enzyme for detoxification of methylglyoxal (MG), a side product of glycolysis, which is able to induce apoptosis. Since GLO I is known to be highly expressed in the most tumor cells and little
JiEun Yun et al.
Biochimica et biophysica acta, 1848(2), 695-701 (2014-12-03)
Isoquercitrin is a flavonoid isolated from Aster yomena, which has been used as a traditional medicinal herb. In the present study, we investigated the antifungal activity and the underlying mechanism of isoquercitrin. Isoquercitrin had a potent effect in the susceptibility
Jun Zhou et al.
Journal of pharmaceutical and biomedical analysis, 107, 273-279 (2015-01-28)
A simple, inexpensive and efficient method based on the mixed cloud point extraction (MCPE) combined with high performance liquid chromatography was developed for the simultaneous separation and determination of six flavonoids (rutin, hyperoside, quercetin-3-O-sophoroside, isoquercitrin, astragalin and quercetin) in Apocynum
Sadaf Naeem et al.
Bioorganic & medicinal chemistry, 20(3), 1251-1258 (2012-01-21)
Data on phytochemical constituents of plants commonly used in traditional Indonesian medicine have been compiled as a computer database. This database (the Indonesian Herbal constituents database, IHD) currently contains details on ∼1,000 compounds found in 33 different plants. For each
Li-Wen Tian et al.
Journal of natural products, 73(2), 160-163 (2010-01-23)
Five new phloroglucinol glycosides, eucalmainosides A-E (1-5), were isolated from the fresh fruits of Eucalyptus maideni, along with 15 flavonoids (6-20), seven (+)-oleuropeic acid derivatives (15, 16, and 22-26), three hydrolyzable tannins (32-34), and six simple phenolic compounds (21, 27-31).
Radka Václavíková et al.
Bioorganic & medicinal chemistry, 16(4), 2034-2042 (2007-11-21)
This study investigated the effect of naturally occurring flavonoids and synthetic aurone derivatives on the formation of cardiotoxic doxorubicinol and transport of doxorubicin in breast cancer cells. Quercetin significantly inhibited the formation of doxorubicinol. Quercetin and aurones did not significantly
Teresa Mencherini et al.
Journal of natural products, 73(2), 247-251 (2010-01-12)
Three new saponins (1-3) and a known saponin, together with four known polyphenolic compounds, have been isolated from the fermented and dried leaves of Fadogia ancylantha (Makoni tea). The structures of compounds 1-3 were established by analysis of their spectroscopic
Mahendra Thapa et al.
Bioorganic & medicinal chemistry letters, 22(1), 353-356 (2011-11-26)
Influenza viruses are important pathogens that cause respiratory infections in humans and animals. In addition to vaccination, antiviral drugs against influenza virus play a significant role in controlling viral infections by reducing disease progression and virus transmission. Plant derived polyphenols
Panpan Guo et al.
Journal of separation science, 38(7), 1156-1163 (2015-01-27)
A sensitive and selective high-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry method has been developed and validated for the simultaneous determination of 25 active constituents, including 21 flavonoids and four phenolic acids in the total flavonoids extract
Ki Hyun Kim et al.
Bioorganic & medicinal chemistry letters, 17(24), 6739-6743 (2007-11-22)
In our continuing study of biologically active compounds from Korean medicinal plants, we investigated the hepatoprotective constituents of the aerial parts of Lactuca indica L. (Compositae), since the methanolic extract of L. indica has hepatoprotective activity against hepatitis B virus
Hisashi Matsuda et al.
Bioorganic & medicinal chemistry, 19(9), 2835-2841 (2011-04-16)
To search for a new class of antidiabetic compounds, effects of 44 flavonoids on the adipogenesis of 3T3-L1 cells were examined. Among them, 3,4',7-trimethylkaempferol, tetramethylkaempferol, and pentamethylquercetin concentration-dependently enhanced the accumulation of triglyceride, a marker of adipogenesis. With regard to
Anne Pick et al.
Bioorganic & medicinal chemistry, 19(6), 2090-2102 (2011-03-01)
Flavonoids are an interesting group of natural products ubiquitously present in human diet. Their consumption has been associated with various and differing beneficial health effects. However, several flavonoids have been reported to inhibit the breast cancer resistance protein (BCRP) encoded
Wan Cao et al.
Journal of chromatography. A, 1358, 277-284 (2014-07-23)
A rapid zwitterionic microemulsion electrokinetic chromatography (ZI-MEEKC) approach coupled with light-emitting-diode-induced fluorescence (LED-IF, 480nm) detection was proposed for the analysis of flavonoids. In the optimization process, we systematically investigated the separation conditions, including the surfactants, cosurfactants, pH, buffers and fluorescence
HPLC analysis of diverse grape and wine phenolics using direct injection and multidetection by DAD and fluorescence.
Gomez-Alonso, Sergio, Esteban Garcia-Romero, and Isidro Hermosin-Gutierrez.
J. Food Compos. Anal., 20.7, 618-626 (2007)
Chloé Roullier-Gall et al.
PloS one, 9(5), e97615-e97615 (2014-05-27)
The chemical composition of grape berries is influenced by various environmental conditions often considered to be representative of a "terroir". If grapes from a given terroir are assumed to reflect this origin in their chemical compositions, the corresponding wine should
Aloys L A Sesink et al.
The Journal of nutrition, 133(3), 773-776 (2003-03-04)
Quercetin has antioxidant, anti-inflammatory, antiproliferative and anticarcinogenic properties. In plant foods, quercetin occurs mainly bound to various sugars via a beta-glycosidic link. We hypothesized that lactase phlorizin hydrolase (LPH), an enzyme at the brush border membrane of intestinal cells, is
Motohiko Ukiya et al.
Journal of natural products, 69(12), 1692-1696 (2006-12-28)
Ten oleanane-type triterpene glycosides, 1-10, including four new compounds, calendulaglycoside A 6'-O-methyl ester (2), calendulaglycoside A 6'-O-n-butyl ester (3), calendulaglycoside B 6'-O-n-butyl ester (5), and calendulaglycoside C 6'-O-n-butyl ester (8), along with five known flavonol glycosides, 11-15, were isolated from
Zhuo Chen et al.
Bioorganic & medicinal chemistry, 16(3), 1337-1344 (2007-11-13)
Saxifraga stolonifera, an evergreen dicotyledon, has been identified as an important resource in Chinese medicine due to its anticancer activity. In the present report, chemical components of S. stolonifera (L) Meeb which is found in Guizhou province were investigated. Ten
Carsten Gründemann et al.
BMC complementary and alternative medicine, 14, 283-283 (2014-08-05)
In Europe, extracts of Equisetum arvense (common horsetail) have a long tradition in the treatment of inflammatory disorders. To understand the molecular basis for its use, we investigated the immunomodulatory capacity of a standardized commercially available common horsetail extract on
Christian Zorzetto et al.
Fitoterapia, 100, 95-109 (2014-12-03)
In the present work we carried out a phytochemical and biological investigation on three Hypericum species, i.e. Hypericum reflexum, Hypericum canariense and Hypericum grandifolium, from the Canary Islands where they are traditionally used as diuretic, wound healing, vermifuge, sedative and
Preety Dixit et al.
Bioorganic & medicinal chemistry letters, 22(2), 890-897 (2012-01-04)
One new isoflavone glucoside, caviunin 7-O-[β-d-apiofuranosyl-(1→6)-β-d-glucopyranoside] (10) and a new itaconic derivative, (E)-4-methoxy-2-(3,4-dihydroxybenzylidene)-4-oxobutanoic acid (15) along with series of isoflavones and flavonols with their glucosides (1-9 and 11-14) and a lignan glucoside (16) were isolated from the ethanolic extract of
Su Yang Jeong et al.
Bioorganic & medicinal chemistry letters, 21(11), 3252-3256 (2011-05-07)
The aerial parts of Aruncus dioicus var. kamtschaticus afforded five new monoterpenoids (1-5): 4-(erythro-6,7-dihydroxy-9-methylpent-8-enyl)furan-2(5H)-one (1, aruncin A), 2-(8-ethoxy-8-methylpropylidene)-5-hydroxy-3,6-dihydro-2H-pyran-4-carboxylic acid (2, aruncin B), 4-(hydroxymethyl)-6-(8-methylprop-7-enyl)-5,6-dihydro-2H-pyran-2-one-11-O-β-D-glucopyranoside (3, aruncide A), (3S,4S,5R,10R)-3-(10-ethoxy-11-hydroxyethyl)-4-(5-hydroxy-7-methylbut-6-enyl)oxetan-2-one-11-O-β-D-glucopyranoside (4, aruncide B), and (3S,4S,5R,7R)-5-(9-methylprop-8-enyl)-1,6-dioxabicyclo[3,2,0]heptan-2-one-7-(hydroxymethyl)-12-O-β-D-glucopyranoside (5, aruncide C). Compound 2 showed potent cytotoxicity
Joseph A Lutz et al.
Fitoterapia, 98, 11-21 (2014-06-28)
The alpha7 nicotinic acetylcholine receptor (nAChR) is a potential target in neuroinflammation. Screening a plant extract library identified Solidago nemoralis as containing methyl-quercetin derivatives that are relatively selective ligands for the alpha7 nAChR. Flavonoids are not known for this activity
Jian-Hong Yang et al.
Journal of natural products, 74(2), 129-136 (2011-01-26)
Phytochemical investigation of the whole plant of Lepisorus contortus (Christ) Ching led to the isolation of five new phenylethanoid glycosides (1-5), each containing a caffeoyl group, a new flavonoid glycoside (10), and 14 known compounds (6-9 and 11-15, syringic acid
Peter L Katavic et al.
Journal of natural products, 70(8), 1278-1282 (2007-08-10)
Flavonoids have been recognized as the active ingredients of many medicinal plant extracts due to interactions with proteins via phenolic groups and low toxicity. Here, we report the investigation of the flavonoid core as a potential new scaffold for the
Katherine A Thompson-Witrick et al.
Journal of agricultural and food chemistry, 62(41), 10181-10191 (2014-09-18)
Polyphenols and maturity parameters were determined in 20 apple cultivars with potential for hard cider production grown in Virginia, U.S.A. Concentrations of five classes of polyphenols were significantly different across cultivar for both peel and flesh. Total polyphenol concentration ranged
Dragan Amić et al.
Bioorganic & medicinal chemistry, 18(1), 28-35 (2009-12-01)
The applicability of the newly developed RM1 and PM6 methods implemented in the semiempirical quantum chemistry mopac2009 software package in modeling free radical scavenging activity of flavonoids was examined. Bond dissociation enthalpy (BDE) of OH groups could be calculated much
Diana M Cheng et al.
Nutrition (Burbank, Los Angeles County, Calif.), 30(7-8 Suppl), S52-S58 (2014-07-06)
The aims of the following experiments were to characterize antidiabetic in vitro and in vivo activity of the polyphenol-rich aqueous extract of Rutgers Scarlet Lettuce (RSL). RSL extract (RSLE) and isolated compounds were evaluated for inhibitory effects on glucose production as well
Quan Chen et al.
Oncology reports, 33(2), 840-848 (2014-12-02)
Pancreatic cancer is a common malignant tumour that affects individuals worldwide. In recent years, the incidence and mortality rates of pancreatic cancer have continuously increased. Currently, the primary clinical treatment methods for pancreatic cancer include surgical resection, chemotherapy and radiotherapy.
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