EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes

3,3',4',5,7-pentahydroxyflavone 3-(6-deoxy-a-L-mannopyranoside)

Supplier Sponsors

CAS Number: 522-12-3Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:208-322-5
Nikkaji Web:J1.578D
Beilstein Number:0068135
XlogP3-AA:0.90 (est)
Molecular Weight:448.38160000
Formula:C21 H20 O11
BioActivity Summary:listing
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:natural substances and extractives
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
Physical Properties:
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Melting Point: 170.00 °C. @ 760.00 mm Hg
Boiling Point: 813.97 °C. @ 760.00 mm Hg (est)
Flash Point: 551.00 °F. TCC ( 288.30 °C. ) (est)
logP (o/w): 0.579 (est)
Soluble in:
 water, 64 mg/L @ 16C (exp)
 water, 2470 mg/L @ 25 °C (est)
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
None found
Alfa Biotechnology
For experimental / research use only.
Quercitrin 98%
BOC Sciences
For experimental / research use only.
For experimental / research use only.
Quercetin 3-a-L-rhamnoside
For experimental / research use only.
Quercitrin from Plants ≥96%
Odor: characteristic
Use: Quercitrin is a common antioxidant flavonoid found in vegetables. Quercitrin exhibits a scavenger and antioxidant role, and these effects probably are mediated via different mechanisms, which may involve the negative modulation of the Fenton reaction and NMDA receptor. Previous in vitro experiments have shown that quercetin exerts a bigger effect than quercitrin in the down-regulation of the inflammatory response. Quercetin inhibits cytokine and inducible nitric oxide synthase expression through inhibition of the NF-kappaB pathway without modification of c-Jun N-terminal kinase activity (both in vitro and in vivo). Quercitrin releases quercetin in order to perform its anti-inflammatory effect which is mediated through the inhibition of the NF-kappaB pathway. Quercitrin, shows antidiarrhoeic activity at doses of 50 mg kg-1, against castor oil- and PGE2-induced diarrhoea in mice, but not when magnesium sulphate is used as a cathartic agent.
For experimental / research use only.
Quercitrin (HPLC) ≥98.5%
Santa Cruz Biotechnology
For experimental / research use only.
For experimental / research use only.
primary pharmaceutical reference standard
Safety Information:
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
intraperitoneal-mouse LD50 200 mg/kg
National Technical Information Service. Vol. AD277-689

intravenous-rabbit LD > 150 mg/kg
Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 41, Pg. 119, 1952.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
natural substances and extractives
Recommendation for quercitrin usage levels up to:
 not for fragrance use.
Recommendation for quercitrin flavor usage levels up to:
 not for flavor use.
Safety References:
EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :5280459
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
RTECS:UZ5950000 for cas# 522-12-3
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):5280459
Pubchem (sid):134977404
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
KEGG (GenomeNet):C01750
HMDB (The Human Metabolome Database):HMDB33751
VCF-Online:VCF Volatile Compounds in Food
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
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2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-3-yl 6-deoxy-a-L-mannopyranoside
3,3',4',5,7-pentahydroxyflavone 3-(6-deoxy-a-L-mannopyranoside)


PubMed:Ultraviolet-B radiation effects on phenolic profile and flavonoid content of Kalanchoe pinnata.
J-Stage:Separation of the Antioxidant Compound Quercitrin from Lindera obtusiloba Blume and Its Antimelanogenic Effect on B16F10 Melanoma Cells
PubMed:Phytochemicals from Mangifera pajang Kosterm and their biological activities.
PubMed:Tetracarpidium conophorum (Mull.Arg) Hutch & Dalziel inhibits FeSO4 -induced lipid peroxidation in rat's genitals.
PubMed:Quercitrin, an Inhibitor of Sortase A, Interferes with the Adhesion of Staphylococcal aureus.
PubMed:[Study on HPLC fingerprint of miao medicine Ardisia japonica].
PubMed:Chemical components from the leaves of Ardisia insularis and their cytotoxic activity.
PubMed:Flavonoids from the aerial parts of Houttuynia cordata attenuate lung inflammation in mice.
PubMed:Hepatoprotective constituents of Firmiana simplex stem bark against ethanol insult to primary rat hepatocytes.
PubMed:Efficient quantification of the phenolic profiles of Zanthoxylum bungeanum leaves and correlation between chromatographic fingerprint and antioxidant activity.
PubMed:Taste discriminating capability to different bitter compounds by the larval styloconic sensilla in the insect herbivore Papilio hospiton (Géné).
PubMed:HPLC/MS analysis of polyphenols, antioxidant and antimicrobial activities of Artabotrys hildebrandtii O. Hffm. extracts.
PubMed:A new proline-containing flavonol glycoside from Caragana leucophloea Pojark.
PubMed:Interactions of a standardized flavonoid fraction from Tilia americana with Serotoninergic drugs in elevated plus maze.
PubMed:Effects of cooking methods on phenolic compounds in xoconostle (Opuntia joconostle).
PubMed:Phenolic Profiling and Evaluation of Contraceptive Effect of the Ethanolic Extract of Salsola imbricata Forssk. in Male Albino Rats.
PubMed:Analysis of Phenolic Compounds in Some Medicinal Herbs by LC-MS.
PubMed:Inhibitory Effect of a Hot-Water Extract of Leaves of Japanese Big-Leaf Magnolia (Magnolia obovata) on Rotavirus-Induced Diarrhea in Mouse Pups.
PubMed:Structure-activity relationship of flavonoids as potent inhibitors of carbonyl reductase 1 (CBR1).
PubMed:Phytochemical analysis and in vitro biological activity of three Hypericum species from the Canary Islands (Hypericum reflexum, Hypericum canariense and Hypericum grandifolium).
PubMed:UHPLC-UV method for the determination of flavonoids in dietary supplements and for evaluation of their antioxidant activities.
PubMed:Delineation of the role of glycosylation in the cytotoxic properties of quercetin using novel assays in living vertebrates.
PubMed:Chemopreventive activity of methanol extract of Melastoma malabathricum leaves in DMBA-induced mouse skin carcinogenesis.
PubMed:Flavonoid-modified surfaces: multifunctional bioactive biomaterials with osteopromotive, anti-inflammatory, and anti-fibrotic potential.
PubMed:Phenolic composition and antioxidant activity of Malus domestica leaves.
PubMed:[Absorption of extractive Polygonum orientale in rat everted gut sacs].
PubMed:Phenolic compounds from sandpaper (ficus exasperata) leaf inhibits angiotensin 1 converting enzyme in high cholesterol diet fed rats.
PubMed:Comparative studies on polyphenolic composition, antioxidant and antimicrobial activities of Schisandra chinensis leaves and fruits.
PubMed:Molecular mechanisms of quercitrin-induced apoptosis in non-small cell lung cancer.
PubMed:Metabolism of rutin and poncirin by human intestinal microbiota and cloning of their metabolizing α-L-rhamnosidase from Bifidobacterium dentium.
PubMed:Purification and characterization of flavonoids from the leaves of Zanthoxylum bungeanum and correlation between their structure and antioxidant activity.
PubMed:Phytochemical profiles and antioxidant and antimicrobial activities of the leaves of Zanthoxylum bungeanum.
PubMed:Comparative investigation of in vitro biotransformation of 14 components in Ginkgo biloba extract in normal, diabetes and diabetic nephropathy rat intestinal bacteria matrix.
PubMed:Apoptotic Effects of Quercitrin on DLD-1 Colon Cancer Cell Line.
PubMed:Biotransformation and in vitro metabolic profile of bioactive extracts from a traditional Miao-nationality herbal medicine, Polygonum capitatum.
PubMed:Chemical components of Ardisia splendens leaves and their activity against coxsackie A16 viruses.
PubMed:Antioxidant activities and phytochemicals of leaf extracts from 10 native rhododendron species in taiwan.
PubMed:Interactions of pharmacokinetic profile of different parts from Ginkgo biloba extract in rats.
PubMed:Optimization of quercitrin and total flavonoids extraction from Herba Polygoni Capitati by response surface methodology.
PubMed:In vitro and in vivo activity of major constituents from Pluchea carolinensis against Leishmania amazonensis.
PubMed:Modulatory effects of quercetin and rutin on the activity, expression and inducibility of CYP1A1 in intestinal HCT-8 cells.
PubMed:Identification of the metabolites of myricitrin produced by human intestinal bacteria in vitro using ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry.
PubMed:Evaluation of antioxidant and antimicrobial activities and phenolic profile for Hyssopus officinalis, Ocimum basilicum and Teucrium chamaedrys.
PubMed:[Chemical constituents of ethyl acetate fraction from Hypericum hengshanense].
PubMed:Seasonal changes of flavonoid content in Melittis melissophyllum L. (Lamiaceae).
PubMed:A UHPLC-MS/MS method for simultaneous determination of six flavonoids, gallic acid and 5,8-dihydroxy-1,4-naphthoquinone in rat plasma and its application to a pharmacokinetic study of Cortex Juglandis Mandshuricae extract.
PubMed:Biochemical and hematological effects of acute and sub-acute administration to ethyl acetate fraction from the stem bark Scutia buxifolia Reissek in mice.
PubMed:An evaluation of 3-rhamnosylquercetin, a glycosylated form of quercetin, against the myotoxic and edematogenic effects of sPLA 2 from Crotalus durissus terrificus.
PubMed:Anti-influenza sesquiterpene from the roots of Reynoutria japonica.
PubMed:Quercetin and quercetin 3-O-glycosides from Bauhinia longifolia (Bong.) Steud. show anti-Mayaro virus activity.
PubMed:Simultaneous determination of four bioactive flavonoids from Polygonum orientale L. in dog plasma by UPLC-ESI-MS/MS and application of the technique to pharmacokinetic studies.
PubMed:Inhibition of major virulence pathways of Streptococcus mutans by quercitrin and deoxynojirimycin: a synergistic approach of infection control.
PubMed:Quality evaluation of Houttuynia cordata Thunb. by high performance liquid chromatography with photodiode-array detection (HPLC-DAD).
PubMed:Chemical composition and bioactivities of flavonoids-rich extract from Davallia cylindrica Ching.
PubMed:[Protective effect of different solvent extracts from platycladi cacumen carbonisatum on LPS-induced human umbilical vein endothelial cells damage].
PubMed:Identification of quercitrin as a potential therapeutic agent for periodontal applications.
PubMed:Sonochemical effects on 14 flavonoids common in citrus: relation to stability.
PubMed:[Comparative study on four major active compounds of Sanvitalia procumbens and Chrysanthemum morifolium cv 'Hangju' and 'Gongju'].
PubMed:Anti-complementary constituents of Houttuynia cordata and their targets in complement activation cascade.
PubMed:[Chemical constituents from Commelina communis].
PubMed:Glucosidase inhibitory activity and antioxidant activity of flavonoid compound and triterpenoid compound from Agrimonia Pilosa Ledeb.
PubMed:Mechanism(s) of action involved in the gastroprotective activity of Muntingia calabura.
PubMed:In vivo anti-inflammatory activity of Tabernaemontana divaricata leaf extract on male albino mice.
PubMed:Simultaneous quantification and peroxynitrite-scavenging activities of flavonoids in Polygonum aviculare L. herb.
PubMed:[Study on quality control of Houttuynia Cordata, a traditional Chinese medicine by fingerprint combined with quantitative analysis of multi-components by single marker].
PubMed:Isolation by pressurised fluid extraction (PFE) and identification using CPC and HPLC/ESI/MS of phenolic compounds from Brazilian cherry seeds (Eugenia uniflora L.).
PubMed:Effects of Allium victorialis leaf extracts and its single compounds on aldose reductase, advanced glycation end products and TGF-β1 expression in mesangial cells.
PubMed:Onion extract structural changes during in vitro digestion and its potential antioxidant effect on brain lipids obtained from low- and high-fat-fed mice.
PubMed:Quercitrin and taxifolin stimulate osteoblast differentiation in MC3T3-E1 cells and inhibit osteoclastogenesis in RAW 264.7 cells.
PubMed:Relationship analysis between flavonoids structure and subcritical water extraction (SWE).
PubMed:LC-MS metabolic study on quercetin and taxifolin galloyl esters using human hepatocytes as toxicity and biotransformation in vitro cell model.
PubMed:Quantitative Determination of Flavonoids and Chlorogenic Acid in the Leaves of Arbutus unedo L. Using Thin Layer Chromatography.
PubMed:Simultaneous RP-HPLC-DAD separation, and determination of flavonoids and phenolic acids in Plantago L. species.
PubMed:Examination of 1-methylimidazole series ionic liquids in the extraction of flavonoids from Chamaecyparis obtuse leaves using a response surface methodology.
PubMed:Gene expression profiling reveals underlying molecular mechanism of hepatoprotective effect of Phyllanthus niruri on thioacetamide-induced hepatotoxicity in Sprague Dawley rats.
PubMed:Phenolic-rich extract from the Costa Rican guava (Psidium friedrichsthalianum) pulp with antioxidant and anti-inflammatory activity. Potential for COPD therapy.
PubMed:Rapid screening and identification of metabolites of quercitrin produced by the human intestinal bacteria using ultra performance liquid chromatography/quadrupole-time-of-flight mass spectrometry.
PubMed:[Simultaneous determination of five flavonoids and specific chromatograms analysis of huangkui capsule].
PubMed:[Phenolic constituents from Lysimachia patungensis].
PubMed:Antimicrobial activity of Schinus lentiscifolius (Anacardiaceae).
PubMed:[Chemical constituents of Rhododendron seniavinii].
PubMed:Relative antioxidant activities of quercetin and its structurally related substances and their effects on NF-κB/CRE/AP-1 signaling in murine macrophages.
PubMed:Phenolic constituents, antioxidant and preliminary antimycoplasmic activities of leaf skin and flowers of Aloe vera (L.) Burm. f. (syn. A. barbadensis Mill.) from the Canary Islands (Spain).
PubMed:Quercitrin protects skin from UVB-induced oxidative damage.
PubMed:Chemical constituents derived from Drimys brasiliensis Miers (Winteraceae).
PubMed:Do other Hypericum species have medical potential as St. John's wort (Hypericum perforatum)?
PubMed:Identification of novel dietary phytochemicals inhibiting the efflux transporter breast cancer resistance protein (BCRP/ABCG2).
PubMed:In vivo and in vitro antidiabetic effect of Cistus laurifolius L. and detection of major phenolic compounds by UPLC-TOF-MS analysis.
PubMed:[Study on the chemical constituents of the active fraction of Polygonum capitatum].
PubMed:Quercetin but not quercitrin ameliorates tumor necrosis factor-alpha-induced insulin resistance in C2C12 skeletal muscle cells.
PubMed:A metabolite-profiling approach allows the identification of new compounds from Pistacia lentiscus leaves.
PubMed:Free radical scavenging activity of Kielmeyera variabilis (Clusiaceae).
PubMed:Changes in the contents of main secondary metabolites in two Turkish Hypericum species during plant development.
PubMed:Identification of quercitrin as an inhibitor of the p90 S6 ribosomal kinase (RSK): structure of its complex with the N-terminal domain of RSK2 at 1.8 Å resolution.
PubMed:Polyphenolics composition of the leaves of Zanthoxylum bungeanum Maxim. grown in Hebei, China, and their radical scavenging activities.
PubMed:Graphene/poly(ethylene-co-vinyl acetate) composite electrode fabricated by melt compounding for capillary electrophoretic determination of flavones in Cacumen platycladi.
PubMed:[Thermosensitization of tumor cells with inhibitors of chaperone activity and expression].
PubMed:Separation of the antioxidant compound quercitrin from Lindera obtusiloba Blume and its antimelanogenic effect on B16F10 melanoma cells.
PubMed:Evaluation of molecularly imprinted anion-functionalized poly(ionic liquid)s by multi-phase dispersive extraction of flavonoids from plant.
PubMed:Inhibition effects and induction of apoptosis of flavonoids on the prostate cancer cell line PC-3 in vitro.
PubMed:Protective effect of 70% ethanolic extract of Lindera obtusiloba Blume on tert-butyl hydroperoxide-induced oxidative hepatotoxicity in rats.
PubMed:HPLC-UV-ESI-MS analysis of phenolic compounds and antioxidant properties of Hypericum undulatum shoot cultures and wild-growing plants.
PubMed:Quercetin and quercitrin protect against cytokine‑induced injuries in RINm5F β-cells via the mitochondrial pathway and NF-κB signaling.
PubMed:Identification of flavonoids and flavonoid rhamnosides from Rhododendron mucronulatum for. albiflorum and their inhibitory activities against aldose reductase.
PubMed:Effects of a cocoa diet on an intestinal inflammation model in rats.
PubMed:Characterization of flavonoids from Dryopteris erythrosora and evaluation of their antioxidant, anticancer and acetylcholinesterase inhibition activities.
PubMed:Genotoxic and mutagenic properties of Bauhinia platypetala extract, a traditional Brazilian medicinal plant.
PubMed:Evaluation of flavonoid contents and antioxidant capacity of the aerial parts of common and tartary buckwheat plants.
PubMed:Study on chemical composition, anti-inflammatory and anti-microbial activities of extracts from Chinese pear fruit (Pyrus bretschneideri Rehd.).
PubMed:Quantitative analysis of biologically active ingredients of Five Seeds Combo by liquid chromatography-quadrupole time-of-flight mass spectrometry for quality control of commercial herbal product.
PubMed:Quercitrin protects against ultraviolet B-induced cell death in vitro and in an in vivo zebrafish model.
PubMed:Increased Flavonoid Compounds from Fermented Houttuynia cordata using Isolated Six of Bacillus from Traditionally Fermented Houttuynia cordata.
PubMed:Protective effects of extracts and flavonoids isolated from Scutia buxifolia Reissek against chromosome damage in human lymphocytes exposed to hydrogen peroxide.
PubMed:In vivo protective effect of Copaifera langsdorffii hydroalcoholic extract on micronuclei induction by doxorubicin.
PubMed:Inhibitory effects of dietary flavonoids on purified hepatic NADH-cytochrome b5 reductase: structure-activity relationships.
PubMed:Chemical composition and hepatoprotective effects of polyphenol-rich extract from Houttuynia cordata tea.
PubMed:Between species diversity of Hypericum perforatum and H. maculatum by the content of bioactive compounds.
PubMed:Bioguided fractionation and isolation of natural inhibitors of advanced glycation end-products (AGEs) from Calophyllum flavoramulum.
PubMed:Apple pomace, a by-product from the asturian cider industry, inhibits herpes simplex virus types 1 and 2 in vitro replication: study of its mechanisms of action.
PubMed:Phenolic composition in different genotypes of Guabiju fruits (Myrcianthes pungens) and their potential as antioxidant and antichemotactic agents.
PubMed:Simultaneous extraction and separation of flavonols and flavones from Chamaecyparis obtusa by multi-phase extraction using an ionic liquid-modified microsphere polymer.
PubMed:Effects of Hypericum montbretti extract on the central nervous system and involvement of GABA (A)/Benzodiazepine receptors in its pharmacological activity.
PubMed:Chemical constituents of Indonesian plant Protium javanicum Burm. f. and their antifeedant activities against Coptotermes formosanus Shiraki.
PubMed:The leishmanicidal flavonols quercetin and quercitrin target Leishmania (Leishmania) amazonensis arginase.
PubMed:In vitro modulatory effects of flavonoids on human cytochrome P450 2C8 (CYP2C8).
PubMed:Poplar root exudates contain compounds that induce the expression of MiSSP7 in Laccaria bicolor.
PubMed:Phenolic profile of edible honeysuckle berries (genus lonicera) and their biological effects.
PubMed:Theoretical investigation of the effect of sugar substitution on the antioxidant properties of flavonoids.
PubMed:Effect of hydroalcoholic extract from Copaifera langsdorffii leaves on urolithiasis induced in rats.
PubMed:Bioactive polyphenols in Ximenia americana and the traditional use among Malian healers.
PubMed:Flavonoid compounds identified in Alchemilla L. species collected in the north-eastern Black Sea region of Turkey.
PubMed:Campomanesia lineatifolia Ruiz & Pav. as a gastroprotective agent.
PubMed:[Simultaneous determination of six flavonoids in Hyperici Japonici Herba by HPCE-DAD].
PubMed:One new diphenylmethane glycoside from the leaves of Psidium guajava L.
PubMed:Anti-inflammatory and free radial scavenging activities of the constituents isolated from Machilus zuihoensis.
PubMed:Quercetin production from rutin by a thermostable β-rutinosidase from Pyrococcus furiosus.
PubMed:Silicon-induced changes in antifungal phenolic acids, flavonoids, and key phenylpropanoid pathway genes during the interaction between miniature roses and the biotrophic pathogen Podosphaera pannosa.
PubMed:Antioxidant, xanthine oxidase and lipoxygenase inhibitory activities and phenolics of Bauhinia rufescens Lam. (Caesalpiniaceae).
PubMed:Houttuynia cordata blocks HSV infection through inhibition of NF-κB activation.
PubMed:Effect of buckwheat extract on the antioxidant activity of lipid in mouse brain and its structural change during in vitro human digestion.
PubMed:Antimicrobial and cytotoxic activities of leaves, twigs and stem bark of Scutia buxifolia Reissek.
PubMed:[Tracking the active component of Tebatan medicine Meconopsis quintuplinervia from Gansu].
PubMed:Flavonoid glycosides and naphthodianthrones in the sawfly Tenthredo zonula and its host-plants, Hypericum perforatum and H. hirsutum.
PubMed:Kalanchoe pinnata inhibits mast cell activation and prevents allergic airway disease.
PubMed:Development and validation of a UHPLC method for the determination of flavonoids in red wine.
PubMed:In vitro photochemical and phototoxicological characterization of major constituents in St. John's Wort (Hypericum perforatum) extracts.
PubMed:Polystyrene/graphene composite electrode fabricated by in situ polymerization for capillary electrophoretic determination of bioactive constituents in Herba Houttuyniae.
PubMed:Protective effect of olive leaf extract on hippocampal injury induced by transient global cerebral ischemia and reperfusion in Mongolian gerbils.
PubMed:Neuroprotective effects of flavonoids on hypoxia-, glutamate-, and oxidative stress-induced retinal ganglion cell death.
PubMed:Antioxidant effects of the ethanol extract from flower of Camellia japonica via scavenging of reactive oxygen species and induction of antioxidant enzymes.
PubMed:Alkaloids and flavonoids of Argemone mexicana.
PubMed:Quercitrin a bioflavonoid improves the antioxidant status in streptozotocin: induced diabetic rat tissues.
PubMed:Sweeping under controlled electroosmotic flow and micellar electrokinetic chromatography for on-line concentration and determination of trace phlorizin and quercitrin in urine samples.
PubMed:Extraction and deglycosylation of flavonoids from sumac fruits using steam explosion.
PubMed:Antioxidant, diuretic activities and polyphenol content of Stereospermum kunthianum Cham. (Bignoniaceae).
PubMed:Naringinases: occurrence, characteristics, and applications.
PubMed:Activity-guided isolation and identification of radical scavenging components in Gao-Cha tea.
PubMed:Seasonal variation of phenolic constituents and medicinal activities of Northern Labrador tea, Rhododendron tomentosum ssp. subarcticum, an Inuit and cree First Nations traditional medicine.
PubMed:Comparison of various easy-to-use procedures for extraction of phenols from apricot fruits.
PubMed:New antidepressant drug candidate: Hypericum montbretti extract.
PubMed:Metabolomic analysis of phenolic compounds in buckwheat (Fagopyrum esculentum M.) sprouts treated with methyl jasmonate.
PubMed:Protective effect of components isolated from Lindera erythrocarpa against oxidative stress-induced apoptosis of H9c2 cardiomyocytes.
PubMed:HPLC analysis of kaempherol and quercetin derivatives isolated by different extraction techniques from plant matrix.
PubMed:Ultrasound-assisted extraction of phenolic antioxidants from Acacia confusa flowers and buds.
PubMed:Stimulation of activity and expression of antioxidant enzymes by solvent fractions and isolated compound from Cedrela sinensis leaves in HepG2 cells.
PubMed:Identification and quantification of phenolic compounds from Balanites aegyptiaca (L) Del (Balanitaceae) galls and leaves by HPLC-MS.
PubMed:Purification and characterization of a novel alkaline α-L-rhamnosidase produced by Acrostalagmus luteo albus.
PubMed:Protective effect of Hypericum calabricum Sprengel on oxidative damage and its inhibition of nitric oxide in lipopolysaccharide-stimulated RAW 264.7 macrophages.
PubMed:[Simultaneous determination of five flavonoid compounds in leaves of Adinandra nitida by HPLC-PAD].
PubMed:[Studies on the flavonoidls from the herb of Striga asiatica].
PubMed:In vitro hepatoprotective and antioxidant activities of crude extract and isolated compounds from Ficus gnaphalocarpa.
PubMed:Quercetin decreases proliferation of orbital fibroblasts and their release of hyaluronic acid.
PubMed:Analysis of isoflavones and flavonoids in human urine by UHPLC.
PubMed:Influence of cultivation conditions, season of collection and extraction method on the content of antileishmanial flavonoids from Kalanchoe pinnata.
PubMed:Content of phenolic compounds and antioxidant capacity in fruits of apricot genotypes.
PubMed:Nanoencapsulation and characterization of Albizia chinensis isolated antioxidant quercitrin on PLA nanoparticles.
PubMed:[Simultaneous determination of eight components in Polygonum orientale by ultra performance liquid chromatography (UPLC) method].
PubMed:[Studies on the chemical constituents of Lithocarpus polystachyus].
PubMed:Protective effect of quercitrin against hydrogen peroxide-induced dysfunction in osteoblastic MC3T3-E1 cells.
PubMed:Phenolic glycosides from Agrimonia pilosa.
PubMed:Isolation and identification of radical scavenging and tyrosinase inhibition of polyphenols from Tibouchina semidecandra L.
PubMed:Development and application of UHPLC-MS/MS method for the determination of phenolic compounds in Chamomile flowers and Chamomile tea extracts.
PubMed:Electrochromatographic characterization of methacrylate ester-based monolith and capillary electrochromatography separation of flavonoids.
PubMed:Isoquercitrin is the most effective antioxidant in the plant Thuja orientalis and able to counteract oxidative-induced damage to a transformed cell line (RGC-5 cells).
PubMed:Assessment of DNA damage induced by extracts, fractions and isolated compounds of Davilla nitida and Davilla elliptica (Dilleniaceae).
PubMed:The constituents of Urtica cannabina used in Uighur medicine.
PubMed:Secondary metabolites of Hypericum confertum and their possible chemotaxonomic significance.
PubMed:Amides, triterpene and flavonoids from the leaves of Melastoma malabathricum L.
PubMed:Polyphenols and phenolic acids from strawberry and apple decrease glucose uptake and transport by human intestinal Caco-2 cells.
PubMed:Caffeic acid and quercitrin purified from Houttuynia cordata inhibit DNA topoisomerase I activity.
PubMed:Consumption of polyphenol concentrate with dietary fructo-oligosaccharides enhances cecal metabolism of quercetin glycosides in rats.
PubMed:[Study on fingerprints of the stems of Actinidia deliciosa by HPLC].
PubMed:Antidepressant-like Effect of Kaempferol and Quercitirin, Isolated from Opuntia ficus-indica var. saboten.
PubMed:Comparable attenuation of Abeta(25-35)-induced neurotoxicity by quercitrin and 17beta-estradiol in cultured rat hippocampal neurons.
PubMed:Highly variable contents of phenolics in St. John's Wort products affect their transport in the human intestinal Caco-2 cell model: pharmaceutical and biopharmaceutical rationale for product standardization.
PubMed:The quantitative effects of temperature and light intensity on phenolics accumulation in St. John's wort (Hypericum perforatum).
PubMed:Capillary electrophoresis frontal analysis for the study of flavonoid interactions with human serum albumin.
PubMed:A semi-quantitative FIA-ESI-MS method for the rapid screening of Hypericum perforatum crude extracts.
PubMed:Determination of some polyphenolic compounds from Allium species by HPLC-UV-MS.
PubMed:Determination of quercetin glycosides and free quercetin in buckwheat by capillary micellar electrokinetic chromatography.
PubMed:Flavonoids and antioxidant activity of Rosa agrestis leaves.
PubMed:Dietary polyphenols affect MUC5AC expression and ciliary movement in respiratory cells and nasal mucosa.
PubMed:Two new C-glucosyl benzoic acids and flavonoids from Mallotus nanus and their antioxidant activity.
PubMed:Simultaneous chemical fingerprint and quantitative analysis of Ginkgo biloba extract by HPLC-DAD.
PubMed:Single-step separation of bioactive flavonol glucosides from Osteomeles schwerinae by high-speed counter-current chromatography.
PubMed:Simultaneous determination of eleven bioactive compounds in Saururus chinensis from different harvesting seasons by HPLC-DAD.
PubMed:Inhibition of AP-1 and MAPK signaling and activation of Nrf2/ARE pathway by quercitrin.
PubMed:The spasmolytic activity of extracts and some isolated compounds from the leaves of Morinda morindoides (Baker) Milne-Redh. (Rubiaceae).
PubMed:Dietary compound quercitrin dampens VEGF induction and PPARgamma activation in oxidized LDL-exposed murine macrophages: association with scavenger receptor CD36.
PubMed:Comparative study of quercetin and its two glycoside derivatives quercitrin and rutin against methylmercury (MeHg)-induced ROS production in rat brain slices.
PubMed:The constituents and their bioactivities of Houttuynia cordata.
PubMed:Antioxidant activities of aqueous extract from Agrimonia pilosa Ledeb and its fractions.
PubMed:A new acylated quercetin glycoside from the leaves of Stevia rebaudiana Bertoni.
PubMed:[Study on HPLC fingerprint of flavonoids from Houttuynia cordata by comparing with fingerprint reference].
PubMed:Chemical constituents of Hypericum adenotrichum Spach, an endemic Turkish species.
PubMed:Benzophenone O-glycosides from Hypericum elegans.
PubMed:Glycosylation of dietary flavonoids decreases the affinities for plasma protein.
PubMed:Pleiotropic changes in Arabidopsis f5h and sct mutants revealed by large-scale gene expression and metabolite analysis.
PubMed:Switchgrass water extracts: extraction, separation and biological activity of rutin and quercitrin.
PubMed:Quercitrin, a bioflavonoid improves glucose homeostasis in streptozotocin-induced diabetic tissues by altering glycolytic and gluconeogenic enzymes.
PubMed:Positive correlations between hypericin and putative precursors detected in the quantitative secondary metabolite spectrum of Hypericum.
PubMed:Antioxidant activities of flavonol derivatives from the leaves and stem bark of Scutia buxifolia Reiss.
PubMed:[Determination of quercitrin in Polygonum capitatum and relinqing granules by HPLC].
PubMed:Interspecific variability of antioxidant activities and phenolic composition in Mesembryanthemum genus.
PubMed:A new dihydrodibenzodioxinone from Hypericum x 'Hidcote'.
PubMed:Effect of the glycosylation of flavonoids on interaction with protein.
PubMed:Inhibitory effects of quercetin 3-rhamnoside on influenza A virus replication.
PubMed:Phenolic compounds from Hypericum calycinum and their antioxidant activity.
PubMed:Polyphenolic profile and bioactivity study of Oenothera speciosa Nutt. aerial parts.
PubMed:Inhibition of ATPase activity of Escherichia coli ATP synthase by polyphenols.
PubMed:Metabolic profile of the bioactive compounds of burdock (Arctium lappa) seeds, roots and leaves.
PubMed:Quality evaluation of Hypericum japonicum by using high-performance liquid chromatography coupled with photodiode array detector and electrospray ionization tandem mass spectrometry.
PubMed:Oxygen and nitrogen reactive species are effectively scavenged by Eucalyptus globulus leaf water extract.
PubMed:A novel flavanone from Ilex hainanensis Merr.
PubMed:Free radical scavenging and antielastase activities of flavonoids from the fruits of Thuja orientalis.
PubMed:Induced accumulation of phenolics and sawfly performance in Scots pine in response to previous defoliation.
PubMed:Cellular reactive oxygen species inhibitory constituents of Hypericum thasium Griseb.
PubMed:Polygonophenone, the first MEM-substituted natural product, from Polygonum maritimum.
PubMed:Two new flavanone glycosides from Veratrum nigrum L.
PubMed:Separation of epigallocatechin and flavonoids from Hypericum perforatum L. by high-speed counter-current chromatography and preparative high-performance liquid chromatography.
PubMed:Effects of compounds isolated from the fruits of Rumex japonicus on the protein glycation.
PubMed:Determination of flavonoids in Houttuynia cordata Thunb. and Saururus chinensis (Lour.) Bail. by capillary electrophoresis with electrochemical detection.
PubMed:Determination of rutin and other flavonoids by flow-injection/adsorptive stripping voltammetry using nujol-graphite and diphenylether-graphite paste electrodes.
PubMed:A new ferulic acid ester and other constituents from Dracocephalum peregrinum.
PubMed:Total peroxyl radical-scavenging capacity of the chemical components from the stems of Acer tegmentosum maxim.
PubMed:Antioxidant effects of different extracts from Melissa officinalis, Matricaria recutita and Cymbopogon citratus.
PubMed:Calpain inhibitory flavonoids isolated from Orostachys japonicus.
PubMed:Polyphenol contents and antioxidant activities of five Indigofera species (Fabaceae) from Burkina Faso.
PubMed:Mechanistic investigation of the noncytochrome P450-mediated metabolism of triadimefon to triadimenol in hepatic microsomes.
PubMed:Reduction of doxorubicin and oracin and induction of carbonyl reductase in human breast carcinoma MCF-7 cells.
PubMed:The inhibitory effect of quercitrin gallate on iNOS expression induced by lipopolysaccharide in Balb/c mice.
PubMed:Anti-platelet effects of flavonoids and flavonoid-glycosides from Sophora japonica.
PubMed:Quantitative analysis of antiradical phenolic constituents from fourteen edible Myrtaceae fruits.
PubMed:Immunomodulatory pretreatment with Kalanchoe pinnata extract and its quercitrin flavonoid effectively protects mice against fatal anaphylactic shock.
PubMed:[Study on antioxidant activity of constituents from mulberry leaf].
PubMed:Bioassay-guided isolation of anti-inflammatory and antinociceptive principles from a folk remedy, Rhododendron ponticum L. leaves.
PubMed:Quercetin inhibition of tumor invasion via suppressing PKC delta/ERK/AP-1-dependent matrix metalloproteinase-9 activation in breast carcinoma cells.
PubMed:Improved assay for determining the total radical-scavenging capacity of antioxidants and foods.
PubMed:In vitro characterization of the enzymes involved in the metabolism of 1-furan-2-yl-3-pyridin-2-yl-propenone, an anti-inflammatory propenone compound.
PubMed:Flavonoids from Tilia americana with anxiolytic activity in plus-maze test.
PubMed:Enhanced electrochemiluminescence of Ru(bpy)3(2+) by flavone compounds.
PubMed:Anti-oxidative and inhibitory activities on nitric oxide (NO) and prostaglandin E2 (COX-2) production of flavonoids from seeds of Prunus tomentosa Thunberg.
PubMed:Flavonols from Bauhinia malabarica.
PubMed:Isolation and identification of antioxidants from Pedilanthus tithymaloides.
PubMed:Anticomplementary principles of a Chinese multiherb remedy for the treatment and prevention of SARS.
PubMed:Anti-hepatitis B virus activities of Geranium carolinianum L. extracts and identification of the active components.
PubMed:Cytotoxic chalcones and antioxidants from the fruits of a Syzygium samarangense (Wax Jambu).
PubMed:Influence of B-ring hydroxylation on interactions of flavonols with bovine serum albumin.
PubMed:[Studies on chemical constituents of Taxillus sutchuenenisis].
PubMed:Phytochemical investigation of Tiarella polyphylla.
PubMed:Leukotriene B4 12-hydroxydehydrogenase/15-ketoprostaglandin Delta 13-reductase (LTB4 12-HD/PGR) responsible for the reduction of a double-bond of the alpha,beta-unsaturated ketone of an aryl propionic acid non-steroidal anti-inflammatory agent CS-670.
PubMed:Variation of bioactive substances in Hypericum montbretii during plant growth.
PubMed:Anti-oxidant and inflammatory mediator's growth inhibitory effects of compounds isolated from Phyllanthus urinaria.
PubMed:Reversed phase-HPLC for rapid determination of polyphenols in flowers of rose species.
PubMed:Inhibitory effect of the herbal antidepressant St. John's wort (Hypericum perforatum) on rat gastric motility.
PubMed:Pim2 inhibitors from the Papua New Guinean plant Cupaniopsis macropetala.
PubMed:Evaluation of cytotoxic compounds from calligonum comosum L. growing in Egypt.
PubMed:Simultaneous analysis of flavonoids from Hypericum japonicum Thunb.ex Murray (Hypericaceae) by HPLC-DAD-ESI/MS.
PubMed:HPLC analysis and pharmacokinetic study of quercitrin and isoquercitrin in rat plasma after administration of Hypericum japonicum thunb. extract.
PubMed:Gallic acid, a metabolite of the antioxidant propyl gallate, inhibits gap junctional intercellular communication via phosphorylation of connexin 43 and extracellular-signal-regulated kinase1/2 in rat liver epithelial cells.
PubMed:Oxidative DNA damage preventive activity and antioxidant potential of Stevia rebaudiana (Bertoni) Bertoni, a natural sweetener.
PubMed:Growth arrest and apoptosis induced by quercetin is not linked to adipogenic conversion of human preadipocytes.
PubMed:Studies on the chemical constituents and anticancer activity of Saxifraga stolonifera (L) Meeb.
PubMed:Acetylcholinesterase inhibition by flavonoids from Agrimonia pilosa.
PubMed:Determination of selected antioxidants in Melissae herba by isotachophoresis and capillary zone electrophoresis in the column-coupling configuration.
PubMed:Pavietin, a coumarin from Aesculus pavia with antifungal activity.
PubMed:Influence of Hypericum perforatum extract and its single compounds on amyloid-beta mediated toxicity in microglial cells.
PubMed:Effects of triterpenoids and flavonoids isolated from Alnus firma on HIV-1 viral enzymes.
PubMed:Phytochemical investigation and hepatoprotective activity of Cupressus sempervirens L. leaves growing in Egypt.
PubMed:Effect of quercitrin gallate on zymosan A-induced peroxynitrite production in macrophages.
PubMed:[Determination of flavonoid glycosides in Pyrola decorate by reversed-phase high performance liquid chromatography].
PubMed:Crotogossamide, a cyclic nonapeptide from the latex of Croton gossypifolius.
PubMed:A rapid RP-HPTLC densitometry method for simultaneous determination of major flavonoids in important medicinal plants.
PubMed:[Studies on flavonoids from stems and leaves of Calophyllum inophyllum].
PubMed:Suppressive effects of germinated buckwheat on development of fatty liver in mice fed with high-fat diet.
PubMed:Antibacterial activity of plant extracts from northwestern Argentina.
PubMed:Flavonoids as protectors against doxorubicin cardiotoxicity: role of iron chelation, antioxidant activity and inhibition of carbonyl reductase.
PubMed:Bioactive phenolic compounds from aerial parts of Plinia glomerata.
PubMed:Flavonoids induce germination of basidiospores of the ectomycorrhizal fungus Suillus bovinus.
PubMed:Interaction of flavonoids and intestinal facilitated glucose transporters.
PubMed:Effect of Albizia julibrissin water extracts on low-density lipoprotein oxidization.
PubMed:Constituents of Cissus quadrangularis.
PubMed:Flavonoids and biological activities of Jussiaea repens.
PubMed:Isolation and characterization of a novel flavonoid possessing a 4,2''-glycosidic linkage from green mature acerola (Malpighia emarginata DC.) fruit.
PubMed:Flavonoids from the flower of Rhododendron yedoense var. poukhanense and their antioxidant activities.
PubMed:Investigation of heptakis(2,6-di-O-methyl)-beta-cyclodextrin inclusion complexes with flavonoid glycosides by electrospray ionization mass spectrometry.
PubMed:Chemical structure-dependent differential effects of flavonoids on the catalase activity as evaluated by a chemiluminescent method.
PubMed:Quantitative phytochemical analyses of six hypericum species growing in slovenia.
PubMed:Effect of Ginkgo biloba extract on the rat heart mitochondrial function.
PubMed:Identification of the major constituents of Hypericum perforatum by LC/SPE/NMR and/or LC/MS.
PubMed:Flavonoids, anti-inflammatory activity and cytotoxicity of Macfadyena unguis-cati L.
PubMed:Isolation and identification of a novel flavonoid from Penthorum chinense P.
PubMed:Analysis of selected constituents in methanolic extracts of Hypericum perforatum collected in different localities by capillary ITP-CZE.
PubMed:[Flavonoids--main constituents of the leaves of Holodiscus discolor (Pursh) Maxim].
PubMed:Kaempferol in red and pinto bean seed (Phaseolus vulgaris L.) coats inhibits iron bioavailability using an in vitro digestion/human Caco-2 cell model.
PubMed:Additional antiprotozoal flavonol glycosides of the aerial parts of Helianthemum glomeratum.
PubMed:Heparin and quercitin generate differential metabolic pathways that involve aminotransferases and LDH-X dehydrogenase in cryopreserved bovine spermatozoa.
PubMed:[Study on chemical constituents of flavonoids in fresh herb of Houttuynia cordata].
PubMed:Effects of St. John's wort extract and single constituents on stress-induced hyperthermia in mice.
PubMed:[Studies on the chemical constituents in stem rind of Wikstroemia indica].
PubMed:Anti-proliferative effect of Euphorbia stenoclada in human airway smooth muscle cells in culture.
PubMed:The antileishmanial activity assessment of unusual flavonoids from Kalanchoe pinnata.
PubMed:The synthesis of small-molecule rhamnosides through the rational design of a whole-cell biocatalysis system.
PubMed:Quantitative determination of major active components in Ginkgo biloba dietary supplements by liquid chromatography/mass spectrometry.
PubMed:Extraction of hyperoside and quercitrin from mimosa (Albizia julibrissin) foliage.
PubMed:Antioxidant galloylated flavonol glycosides from Calliandra haematocephala.
PubMed:Influence of different phenolic copigments on the color of malvidin 3-glucoside.
PubMed:Quercitrin, a glycoside form of quercetin, prevents lipid peroxidation in vitro.
PubMed:Bioassay-guided isolation of aldose reductase inhibitors from Artemisia dracunculus.
PubMed:The effect of flavonoids on rat heart mitochondrial function.
PubMed:Hypericum perforatum: which constituents may induce intestinal MDR1 and CYP3A4 mRNA expression?
PubMed:Application of reverse-flow micellar electrokinetic chromatography for the simultaneous determination of flavonols and terpene trilactones in Ginkgo biloba dosage forms.
PubMed:[Studies on antiviral constituents in stems and leaves of Pithecellibium clypearia].
PubMed:Fungitoxic metabolites from Erigeron apiculatus.
PubMed:Intestinal anti-inflammatory activity of combined quercitrin and dietary olive oil supplemented with fish oil, rich in EPA and DHA (n-3) polyunsaturated fatty acids, in rats with DSS-induced colitis.
PubMed:Potential polyphenol markers of phase change in apple (Malus domestica).
PubMed:Quercetin inhibition of ROS-dependent and -independent apoptosis in rat glioma C6 cells.
PubMed:Quality evaluation of Platycladus orientalis (L.) Franco through simultaneous determination of four bioactive flavonoids by high-performance liquid chromatography.
PubMed:Qualitative and quantitative analysis of flavonoids of the strawberry tree - Arbutus unedo L. (Ericaceae).
PubMed:Preliminary HPLC study on some polyphenols of Geranium robertianum L. (Geraniaceae).
PubMed:Phytochemical analysis of nine Hypericum L. species from Serbia and the F.Y.R. Macedonia.
PubMed:Comparison of methods for the exhaustive extraction of hypericins, flavonoids, and hyperforin from Hypericum perforatum L.
PubMed:Development and evaluation of methods for determination of naphthodianthrones and flavonoids in St. John's wort.
PubMed:[Studies on the flavonoids in stem of Rhododendron anthopogonoide II].
PubMed:Identification and quantification of glycoside flavonoids in the energy crop Albizia julibrissin.
PubMed:In-vitro effect of flavonoids from Solidago canadensis extract on glutathione S-transferase.
PubMed:Quercitrin: an antileishmanial flavonoid glycoside from Kalanchoe pinnata.
PubMed:Antioxidant polyphenols in almond and its coproducts.
PubMed:Dynamic ultrasound-assisted extraction of polyphenols in tobacco.
PubMed:Phenolic constituents with inhibitory activity against NFAT transcription from Desmos chinensis.
PubMed:Phenolic profile of Asturian (Spain) natural cider.
PubMed:Quantitative analysis of the major constituents of St John's wort with HPLC-ESI-MS.
PubMed:Inhibition study of rabbit liver cytosolic reductases involved in daunorubicin toxication.
PubMed:Phytochemical analysis and genetic characterization of six Hypericum species from Serbia.
PubMed:[HPLC investigation of antioxidant components in Solidago herba].
PubMed:Inhibition of human cytochrome CYP 1 enzymes by flavonoids of St. John's wort.
PubMed:Antinociceptive action of the extract and the flavonoid quercitrin isolated from Bauhinia microstachya leaves.
PubMed:[A new flavonoid glycoside from the roots and stems of Sphaerophysa salsula].
PubMed:Flavonoid glycosides inhibit oral cancer cell proliferation--role of cellular uptake and hydrolysis to the aglycones.
PubMed:Flavonoids from the leaves of Litsea japonica and their anti-complement activity.
PubMed:Preserved pharmacological activity of hepatocytes-treated extracts of valerian and St. John's wort.
PubMed:An improved method for the quantitation of flavonoids in Herba Leonuri by capillary electrophoresis.
PubMed:Antitrichomonal and antioxidant activities of Dorstenia barteri and Dorstenia convexa.
PubMed:Free radical scavenging and hepatoprotective constituents from the leaves of Juglans sinensis.
PubMed:Foliar phenolics in sugar maple (Acer saccharum) as a potential indicator of tropospheric ozone pollution.
PubMed:Separation and determination of flavonoids in Agrimonia pilosa Ledeb. by capillary electrophoresis with electrochemical detection.
PubMed:Down-regulatory effect of quercitrin gallate on nuclear factor-kappa B-dependent inducible nitric oxide synthase expression in lipopolysaccharide-stimulated macrophages RAW 264.7.
PubMed:Effects of the antidepressant St. John's wort (Hypericum perforatum) on rat and human vas deferens contractility.
PubMed:Quercetin, but not rutin and quercitrin, prevention of H2O2-induced apoptosis via anti-oxidant activity and heme oxygenase 1 gene expression in macrophages.
PubMed:Optimization of "Askoeziuofito" tablets.
PubMed:The effect of granisetron on in vitro metabolism of doxorubicin, irinotecan and etoposide.
PubMed:The simultaneous determination of selected flavonol glycosides and aglycones in Ginkgo biloba oral dosage forms by high-performance liquid chromatography-electrospray ionisation-mass spectrometry.
PubMed:Cuminaldehyde: Aldose Reductase and alpha-Glucosidase Inhibitor Derived from Cuminum cyminum L. Seeds.
PubMed:A new antipsychotic effective neolignan from Firmiana simplex.
PubMed:Structural and functional characterization of polyphenols isolated from acerola (Malpighia emarginata DC.) fruit.
PubMed:Herbal drug quality and phytochemical composition of Hypericum perforatum L. affected by ash yellows phytoplasma infection.
PubMed:[Studies on quality control of Xueyakang capsule].
PubMed:In vivo quercitrin anti-inflammatory effect involves release of quercetin, which inhibits inflammation through down-regulation of the NF-kappaB pathway.
PubMed:Proacrosin-acrosin activity in capacitated and acrosome reacted sperm from cryopreserved bovine semen.
PubMed:Flavonoid glucosides are hydrolyzed and thus activated in the oral cavity in humans.
PubMed:PTP1B inhibitors from Ardisia japonica.
PubMed:Inhibition of fowlpox virus by an aqueous acetone extract from galls of Guiera senegalensis J. F. Gmel (Combretaceae).
PubMed:High-performance liquid chromatographic determination of selected flavonols in Ginkgo biloba solid oral dosage forms.
PubMed:Fast screening method for the analysis of total flavonoid content in plants and foodstuffs by high-performance liquid chromatography/electrospray ionization time-of-flight mass spectrometry with polarity switching.
PubMed:The intestinal anti-inflammatory effect of quercitrin is associated with an inhibition in iNOS expression.
PubMed:Tyrosinase inhibitor isolated from the leaves of Zanthoxylum piperitum.
PubMed:Vasorelaxing effects of flavonoids: investigation on the possible involvement of potassium channels.
PubMed:The protozoan Tetrahymena as a bioindicator to screen bioactive substances.
PubMed:Generation of an alpha-L-rhamnosidase library and its application for the selective derhamnosylation of natural products.
PubMed:[Research of the amounts of flavonoids accumulated in the buds of single-styled hawthorn].
PubMed:Antioxidant activity of a flavonoid-rich extract of Hypericum perforatum L. in vitro.
PubMed:Inhibitory effect of the antidepressant St. John's wort (hypericum perforatum) on rat bladder contractility in vitro.
PubMed:Comparison of the synaptosomal uptake inhibition of serotonin by St John's wort products.
PubMed:The type of sugar moiety is a major determinant of the small intestinal uptake and subsequent biliary excretion of dietary quercetin glycosides.
PubMed:In vivo anti-inflammatory activity of Alchornea cordifolia (Schumach. & Thonn.) Müll. Arg. (Euphorbiaceae).
PubMed:Assay of phenolic compounds in red wine by on-line combination of capillary isotachophoresis with capillary zone electrophoresis.
PubMed:Phytochemical constituents from Diodia teres.
PubMed:Effect of acute drought stress and time of harvest on phytochemistry and dry weight of St. John's wort leaves and flowers.
PubMed:In vitro studies indicate that miquelianin (quercetin 3-O-beta-D-glucuronopyranoside) is able to reach the CNS from the small intestine.
PubMed:Flavonols and anthocyanins of bush butter, Dacryodes edulis (G. Don) H.J. Lam, fruit. changes in their composition during ripening.
PubMed:[Phytochemical research of hawthorn species introduced in Lithuania].
PubMed:Tartary buckwheat (Fagopyrum tataricum Gaertn.) as a source of dietary rutin and quercitrin.
PubMed:Anaerobic degradation of flavonoids by Clostridium orbiscindens.
PubMed:Antimicrobial activity of some Hypericum species.
PubMed:Defoliation-induced responses in peroxidases, phenolics, and polyamines in scots pine (Pinus sylvestris L.) needles.
PubMed:Bioactive novel polyphenols from the fruit of Manilkara zapota (Sapodilla).
PubMed:Differential apoptosis-inducing effect of quercetin and its glycosides in human promyeloleukemic HL-60 cells by alternative activation of the caspase 3 cascade.
PubMed:Pro-oxidative properties of flavonoids in human lymphocytes.
PubMed:Anti-complement activity of constituents from the stem-bark of Juglans mandshurica.
PubMed:[Studies on the chemical constituents from Myristica yunnanensis Y. H. Li].
PubMed:[Studies on chemical constituents of Gaultheria leucocarpa var. Yunnanensis (Franch.) T. Z. Hsu & R. C. Fang].
PubMed:[Chemical constituents of Hyperricum monogynum].
PubMed:[Two flavone glycosides from Chinese traditional medicine Amomum villosum].
PubMed:Influence of cooking process on phenolic marker compounds of vegetables.
PubMed:Antioxidant flavonoids and phenolic acids from leaves of Leea guineense G Don (Leeaceae).
PubMed:Quantitative analysis of aglycone quercetin in mulberry leaves (Morus alba L.) by capillary zone electrophoresis.
PubMed:Flavonols from Scurrula ferruginea Danser (Loranthaceae).
PubMed:Inhibitory activity of Cinnamomum cassia bark-derived component against rat lens aldose reductase.
PubMed:Biorelevant dissolution testing of St John's wort products.
PubMed:[Analysis of flavonoids in the flowers and leaves of Monarda didyma L].
PubMed:Tissue factor inhibitory flavonoids from the fruits of Chaenomeles sinensis.
PubMed:Antioxidant flavonoids from leaves of Polygonum hydropiper L.
PubMed:Polyphenolic compounds from the leaves of Koelreuteria paniculata Laxm.
PubMed:Inhibition of growth and sensitization to cisplatin-mediated killing of ovarian cancer cells by polyphenolic chemopreventive agents.
PubMed:Rat lens aldose reductase inhibitory activities of Coptis japonica root-derived isoquinoline alkaloids.
PubMed:A simple method to study the activity of natural compounds on the chemiluminescence of neutrophils upon stimulation by immune complexes.
PubMed:Protective effects of quercetin on ultraviolet A light-induced oxidative stress in the blood of rat.
PubMed:[Chemical constituents of Saururus chinensis (Lour.) Bail].
PubMed:[Studies on chemical constituents from the flower of Albizzia julibrissin Durazz].
PubMed:In vitro antioxidant profile of phenolic acid derivatives.
PubMed:On-line coupling of capillary isotachophoresis and capillary zone electrophoresis for the determination of flavonoids in methanolic extracts of Hypericum perforatum leaves or flowers.
PubMed:Rutin-enhanced antibacterial activities of flavonoids against Bacillus cereus and Salmonella enteritidis.
PubMed:Structural requirements of flavonoids and related compounds for aldose reductase inhibitory activity.
PubMed:Effect of quercitrin on the early stages of hapten induced colonic inflammation in the rat.
PubMed:Reductive metabolism of an alpha,beta-ketoalkyne, 4-phenyl-3-butyn-2-one, by rat liver preparations.
PubMed:Polyphenolic antioxidants from the fruits of Chrysophyllum cainito L. (Star Apple).
PubMed:The role of UV-B radiation in aquatic and terrestrial ecosystems--an experimental and functional analysis of the evolution of UV-absorbing compounds.
PubMed:Phytochemical and pharmacological analysis of Bauhinia microstachya (Raddi) Macbr. (Leguminosae).
PubMed:High performance liquid chromatographic analysis of St. John's wort with photodiode array detection.
PubMed:Analysis of flavonoid constituents from leaves of Acanthopanax senticosus harms by electrospray tandem mass spectrometry.
PubMed:Phytochemical and pharmacological investigations of Virola oleifera leaves.
PubMed:Monoamine oxidase B and free radical scavenging activities of natural flavonoids in Melastoma candidum D. Don.
PubMed:[A novel isoflavone glycoside from Caragana alaica].
PubMed:Role of flavonoids in controlling the phototoxicity of Hypericum perforatum extracts.
PubMed:Inhibitory activity for chitin synthase II from Saccharomyces cerevisiae by tannins and related compounds.
PubMed:Antimicrobial activity of Argentine plants used in the treatment of infectious diseases. Isolation of active compounds from Sebastiania brasiliensis.
PubMed:Comparative evaluation of St. John's wort from different Italian regions.
PubMed:Constituents of the flowers of Persea gratissima.
PubMed:Three new flavonol malonylrhamnosides from Ribes alpinum.
PubMed:Characterization of enzymes participating in carbonyl reduction of 4-methylnitrosamino-1-(3-pyridyl)-1-butanone (NNK) in human placenta.
PubMed:Detection of drug-induced, superoxide-mediated cell damage and its prevention by antioxidants.
PubMed:Electrospray ionisation mass spectrometric study of degradation products of quercetin, quercetin-3-glucoside and quercetin-3-rhamnoglucoside, produced by in vitro fermentation with human faecal flora.
PubMed:Guaiane dimers from Xylopia vielana.
PubMed:[Biologically active substances isolated from Hypericum attenuatum Choisy].
PubMed:Quercetin 3-O-beta-glucoside is better absorbed than other quercetin forms and is not present in rat plasma.
PubMed:Purification and characterization of an alpha-L-rhamnosidase from Pichia angusta X349.
PubMed:Purification and characterization of oxidoreductases-catalyzing carbonyl reduction of the tobacco-specific nitrosamine 4-methylnitrosamino-1-(3-pyridyl)-1-butanone (NNK) in human liver cytosol.
PubMed:Analysis of oak tannins by liquid chromatography-electrospray ionisation mass spectrometry.
PubMed:A carbonyl reductase-catalyzing reduction of N3-phenacyluridine in rabbit liver.
PubMed:Sedative activity of two flavonol glycosides isolated from the flowers of Albizzia julibrissin Durazz.
PubMed:Inhibition of mitochondrial proton F0F1-ATPase/ATP synthase by polyphenolic phytochemicals.
PubMed:Reduction of the potential anticancer drug oracin in the rat liver in-vitro.
PubMed:Biochemical activities of extracts from Hypericum perforatum L. 5th communication: dopamine-beta-hydroxylase-product quantification by HPLC and inhibition by hypericins and flavonoids.
PubMed:Application of directly coupled HPLC-NMR-MS to the identification and confirmation of quercetin glycosides and phloretin glycosides in apple peel.
PubMed:Chemical characterization and biological activity of Macfadyena unguis-cati (Bignoniaceae).
PubMed:Flavonoids from Hypericum perforatum show antidepressant activity in the forced swimming test.
PubMed:Microsomal carbonyl reductase responsible for reduction of 4-phenyl-3-buten-2-one in rats.
PubMed:Carbonyl reduction of the tobacco-specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) in cytosol of mouse liver and lung.
PubMed:[Standardization of hazel leaf].
PubMed:Metabolism of quercitrin by human intestinal bacteria and its relation to some biological activities.
PubMed:Competitive and noncompetitive inhibition of the DNA-dependent protein kinase.
PubMed:Effect of androgen structures on the inhibition of metyraponeinreductase in rat, mouse, and human liver.
PubMed:Protective effects of some flavonoids on the renal cellular membrane.
PubMed:Purification and some properties of two enzymes from rat liver cytosol that catalyze carbonyl reduction of 6-tert-butyl-2, 3-epoxy-5-cyclohexene-1,4-dione, a metabolite of 3-tert-butyl-4-hydroxyanisole.
PubMed:Expression of antisense chalcone synthase RNA in transgenic hybrid walnut microcuttings. Effect on flavonoid content and rooting ability.
PubMed:Flavan-3-ols isolated from some medicinal plants inhibiting COX-1 and COX-2 catalysed prostaglandin biosynthesis.
PubMed:Hypericum perforatum inhibits the binding of mu- and kappa-opioid receptor expressed with the Semliki Forest virus system.
PubMed:Effects of flavonoids and vitamin C on oxidative DNA damage to human lymphocytes.
PubMed:Antidiabetic principles of natural medicines. II. Aldose reductase and alpha-glucosidase inhibitors from Brazilian natural medicine, the leaves of Myrcia multiflora DC. (Myrtaceae): structures of myrciacitrins I and II and myrciaphenones A and B.
PubMed:Development of a radiochemical cyclooxygenase-1 and -2 in vitro assay for identification of natural products as inhibitors of prostaglandin biosynthesis.
PubMed:In vitro activity of extracts of Persea americana leaves on acyclovir-resistant and phosphonoacetic resistant Herpes simplex virus.
PubMed:Isolation and immunomodulatory effect of flavonol glycosides from Epimedium hunanense.
PubMed:Phenolic and antibacterial constituents of Vahlia capensis.
PubMed:Inhibition of benzodiazepine binding in vitro by amentoflavone, a constituent of various species of Hypericum.
PubMed:Carbonyl reduction of daunorubicin in rabbit liver and heart.
PubMed:Purification and characterization of alpha,beta-ketoalkene double bond reductases from bovine eyes.
PubMed:Metabolic inactivation and efflux of daunorubicin as complementary mechanisms in tumor cell resistance.
PubMed:Biotransformation and detoxification of insecticidal metyrapone analogues by carbonyl reduction in the human liver.
PubMed:Effect of quercitrin on acute and chronic experimental colitis in the rat.
PubMed:Multiplicity of rat liver 15-ketoprostaglandin delta 13-reductases.
PubMed:[Flavonol glycosides of Sonchus arvensis L].
PubMed:Flavonoids as inhibitors of NADP-malic enzyme and PEP carboxylase from C4 plants.
PubMed:Angiotensin converting enzyme (ACE) inhibitory flavonoids from Erythroxylum laurifolium.
PubMed:[The constituents of Taxillus kaempferi and the host, Pinus thunbergii. I. Catechins and flavones of Taxillus kaempferi].
PubMed:[Standardization of the birch leaf].
PubMed:Anti-inflammatory activity of flavonol glycosides from Erythrospermum monticolum depending on single or repeated local TPA administration.
PubMed:Reduction and glucuronidation of naftazone by human and rat liver microsomes.
PubMed:Antibacterial phloroglucinols and flavonoids from Hypericum brasiliense.
PubMed:Chemical and chemotaxonomical studies on Dicranopteris species.
PubMed:Effect of quercitrin on lactose-induced chronic diarrhoea in rats.
PubMed:In vitro anticomplementary activity of constituents from Morinda morindoides.
PubMed:Oral administration of quercitrin modifies intestinal oxidative status in rats.
PubMed:Purification and properties of six aldo-keto reductases from rat adrenal gland.
PubMed:Electrochemistry of catechol-containing flavonoids.
PubMed:Purification and characterization of a novel dimeric 20 alpha-hydroxysteroid dehydrogenase from Tetrahymena pyriformis.
PubMed:Quercetin glycosides in Psidium guajava L. leaves and determination of a spasmolytic principle.
PubMed:Antidiarrhoeic activity of Euphorbia hirta extract and isolation of an active flavonoid constituent.
PubMed:Purification of a 15-ketoprostaglandin delta 13-reductase from rat liver and its ability to reduce the double bond of xenobiotics.
PubMed:Effects of topoisomerase II-targeted drugs on enzyme-mediated DNA cleavage and ATP hydrolysis: evidence for distinct drug interaction domains on topoisomerase II.
PubMed:[Pharmacological studies of Houttuyniae herba: the anti-inflammatory effect of quercitrin].
PubMed:Purification and properties of carbonyl reductase from rabbit kidney.
PubMed:Antidiarrhoeic activity of quercitrin in mice and rats.
PubMed:15-Ketoprostaglandin delta 13-reductase activity in bovine ocular tissues.
PubMed:Characterization of carbonyl reducing activity in continuous cell lines of human and rodent origin.
PubMed:New phenolic glucosides from the leaves of Eurya tigang.
PubMed:High carbonyl reductase activity in adrenal gland and ovary emphasizes its role in carbonyl compound detoxication.
PubMed:[Chemical components of the leaves of Pistacia Chinensis Bge].
PubMed:Extensive In Vitro Hyphal Growth of Vesicular-Arbuscular Mycorrhizal Fungi in the Presence of CO(2) and Flavonols.
PubMed:[Acuminatin from the aerial part of Epimedium acuminatum].
PubMed:Combined effects of flavonoids and acyclovir against herpesviruses in cell cultures.
PubMed:Heterogeneity of carbonyl reduction in subcellular fractions and different organs in rodents.
PubMed:Carbonyl reduction of metyrapone in human liver.
PubMed:Reductive metabolism of metyrapone by a quercitrin-sensitive ketone reductase in mouse liver cytosol.
PubMed:[Polyphenols from leaves of Euphorbia hirta L].
PubMed:Flavonoids of Ochradenus baccatus.
PubMed:Purification of NADPH-linked alpha,beta-ketoalkene double bond reductase from rat liver.
PubMed:Flavonol Glycosides from Moghania faginea.
PubMed:Purification and properties of a metyrapone-reducing enzyme from mouse liver microsomes--this ketone is reduced by an aldehyde reductase.
PubMed:Studies on aldose reductase inhibitors from natural products. II. Active components of a Paraguayan crude drug "Para-parai mí," Phyllanthus niruri.
PubMed:Studies on the constituents of Japanese mistletoes from different host trees, and their antimicrobial and hypotensive properties.
PubMed:The purification and properties of NADPH-dependent carbonyl reductases from rat ovary.
PubMed:[HPTLC scanning determination of 6 flavonoids in 166 Rhododendron species].
PubMed:[Studies on the chemical constituents of the stems and leaves of Illicium dunnianum Tutch].
PubMed:Influence of flavonoids on combined experimental infections with EMC virus and Staphylococcus aureus in mice.
PubMed:Flavonoids, leucocyte migration and eicosanoids.
PubMed:Mouse liver dihydrodiol dehydrogenases. Identity of the predominant and a minor form with 17 beta-hydroxysteroid dehydrogenase and aldehyde reductase.
PubMed:Hydrolysis of dietary flavonoid glycosides by strains of intestinal Bacteroides from humans.
PubMed:[Flavonoids of Taxillus sutchuenensis (Lecomte) Danser and T. sutchuenensis var. duclouxii (Lecomte) Kiuined].
PubMed:Preliminary pharmacological studies on Eugenia uniflora leaves: xanthine oxidase inhibitory activity.
PubMed:Purification and partial characterization of dimeric dihydrodiol dehydrogenase from monkey kidney.
PubMed:[High performance liquid chromatography of quercitrin in Biota orientalis (L.) Endl].
PubMed:Flavonoids as antioxidants evaluated by in vitro and in situ liver chemiluminescence.
PubMed:Enzymatic properties of 13,14-dihydroprostaglandin F2 alpha synthetase in ovarian cytosol of the rat.
PubMed:Guinea-pig liver morphine 6-dehydrogenase as a naloxone reductase.
PubMed:Effects of flavonoids on xanthine oxidation as well as on cytochrome c reduction by milk xanthine oxidase.
PubMed:X-ray affinity and photoaffinity inhibitor of aldose reductase.
PubMed:Activated and unactivated forms of human erythrocyte aldose reductase.
PubMed:Inhibition of virus multiplication and alteration of cyclic AMP level in cell cultures by flavonoids.
PubMed:The ovarian enzyme catalyzing conversion of 13,14-dihydro-15-ketoprostaglandin F2 alpha to 13,14-dihydroprostaglandin F2 alpha in rats.
PubMed:Effect of bile acids on formation of the mutagen, quercetin, from two flavonol glycoside precursors by human gut bacterial preparations.
PubMed:Purification and properties of beef liver aldehyde reductase catalyzing the reduction of D-erythrose 4-phosphate.
PubMed:Reductases for carbonyl compounds in human liver.
PubMed:Combined antiviral effects of flavonoids and 5-ethyl-2'-deoxyuridine on the multiplication of herpesviruses.
PubMed:[Substrate specificity and inhibition by various compounds of aldose reductase II from rabbit lens].
PubMed:Hydrogen peroxide-dependent oxidation of flavonols by intact spinach chloroplasts.
PubMed:Flavonoids in the leaves of Juniperus drupacea.
PubMed:Etiology of cataracts in diabetics.
PubMed:The role of rutin and quercitrin in stimulating flavonol glycosidase activity by cultured cell-free microbial preparations of human feces and saliva.
PubMed:Optical spectroscopy as an in vitro method to monitor aldose reductase inhibitors in the lens.
PubMed:Inhibition of human lens aldose reductase by flavonoids, sulindac and indomethacin.
PubMed:Activation of rutin by human oral bacterial isolates to the carcinogen-mutagen quercetin.
PubMed:Isolation of proteins with carbonyl reductase activity and prostaglandin-9-ketoreductase activity from chicken kidney.
PubMed:Susceptibility of aldehyde and aldose reductases of human tissues to aldose reductase inhibitors.
PubMed:Differences in the susceptibility of various aldose reductases to inhibition. II.
PubMed:Multiple aldehyde reductases of human brain.
PubMed:Implications of aldose reductase in cataracts in human diabetes.
PubMed:Comparative mutagenesis of plant flavonoids in microbial systems.
PubMed:[Antiviral activity of plant components. 1st communication: Flavonoids (author's transl)].
PubMed:Diabetic cataracts and flavonoids.
PubMed:[Effect of quercitrin on structural changes in the large and small intestines in experimental enterocolitis].
PubMed:Effect of certain organic compounds on saliva secretion in sheep.
PubMed:Flavonoids as inhibitors of lens aldose reductase.
PubMed:The origins of tannins and flavonoids in black-wattle barks and heartwoods, and their associated "non-tannin" components.
PubMed:[Isolation of quercitrin from Polygonum hydropiper L..].
PubMed:Respiration of ascites tumor cells: effects of quercitrin and naringin.
PubMed:Effect of quercitrin on hepatic and splenic manifestations of mouse pox.
PubMed:A new method for the isolation of pure quercitrin from lemon flavin.
PubMed:Comparative toxicites of quercetin and quercitrin.
PubMed:Isolation of quercitrin and quercetin from lemon flavine.
PubMed:A note on the isolation of quercitrin from Euphorbia pilulifera L.
Quercitrin is a glycoside formed from the flavonoid quercetin and the deoxy sugar rhamnose. It is a constituent of the dye quercitron. (Wikipedia)
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