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hypericum hyssopifolium/antioxydant
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Antioxidant Activity and Hepatoprotective Potential of Quercetin 7-Rhamnoside In Vitro and In Vivo.
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Hypericum japonicum is traditionally used as a folk medicine to treat cholestasis and hepatitis. Quercetin 7-rhamnoside (Q7R) is one of the main flavonoid components of Hypericum japonicum and has been rarely studied. The aim of the present study was to evaluate the antioxidant activity and
Antioxidant activity of a flavonoid-rich extract of Hypericum perforatum L. in vitro.
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A flavonoid-rich extract of Hypericum perforatum L. (FEHP) was prepared by adsorption on macroporous resin and desorption by ethanol. Total flavonoid content of FEHP was determined by a colorimetric method. The major constituents of FEHP, including rutin, hyperoside, isoquercitrin, avicularin,
Evaluation of Polyphenol Content and Antioxidant Capacity of Aqueous Extracts from Eight Medicinal Plants from Reunion Island: Protection against Oxidative Stress in Red Blood Cells and Preadipocytes
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Background-Medicinal plants are traditionally used as infusions or decoctions for their antioxidant, anti-inflammatory, hypolipidemic and anti-diabetic properties. Purpose-The aim of the study was to define the polyphenol composition and to assess the antioxidant capacity of eight medicinal plants
Synthese and characterization of boronic acid functionalized macroporous uniform poly(4-chloromethylstyrene-co-divinylbenzene) particles and its use in the isolation of antioxidant compounds from plant extracts.
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Aminophenyl boronic acid (APBA) carrying uniform-macroporous poly(chloromethylstyrene-co-divinylbenzene), poly(CMS-co-DVB) particles were synthesized for selective separation of cis-diol-containing flavonoids from plant extracts. For this purpose, 2.5 μm polystyrene seed particles were first swelled
Antioxidant activity relationship of phenolic compounds in Hypericum perforatum L.
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BACKGROUND
The St John's Wort (Hypericum perforatum; Clusiaceae) has been used in traditional and modern medicine for a long time due to its high content of biologically active phenolics. The purpose of this work was to develop a method for their fractionation and identification, and to determine
Potential antioxidant and anti-inflammatory action of Hypericum hookerianum extracts in a liposome system evaluated with zebrafish embryos.
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The purpose of this study was to assess the antioxidant and anti-inflammatory potential of liposomal formulations enriched with Hypericum hookerianum (Hyp) aqueous extracts. Cotyledon segments derived from protocorms of H. hookerianum were cultured on Murashige and Skoog (MS) media
Various fractions of Hypericum x moserianum and Hypericum ericoides possess antiglycation, anti-lipid peroxidation, antioxidative activities and non-toxic effects in vitro.
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In the present study, two species Hypericum x moserianum and Hypericum ericoides which belong to genus Hypericum were evaluated for their potential antiglycation, antioxidant, anti lipid peroxidation and cytotoxic activities. These species are widely used in folk medicine and to the best of our
Antioxidative constituents from the leaves of Hypericum styphelioides.
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Two new compounds have been isolated from the leaves of Hypericum styphelioides. Their structures have been established on the basis of mass spectrometry and 2D NMR techniques as 1,3,5-trihydroxy-2-(2',2'-dimethyl-4'-isopropenyl)cyclopentanylxanthone (1) and
Hyperjovinols A and B: Two new phloroglucinol derivatives from Hypericum jovis with antioxidant activity in cell cultures.
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Two new and four known phloroglucinol derivatives were isolated from the dichloromethane extract of the Greek endemic plant Hypericum jovis. Their antioxidant activity was evaluated in vitro with the DPPH assay and in cell cultures using the DCFH-DA assay. All six compounds demonstrated significant
Hyphenated chromatographic techniques for the rapid screening and identification of antioxidants in methanolic extracts of pharmaceutically used plants.
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Phytochemical analysis is an important scientific research area, which normally relies on a number of rather laborious and time-consuming techniques for compound identification. Isolation of the ingredients of plant extracts in adequate quantities for spectral and biological analysis was the basis
Development of Hypericum perforatum oil incorporated antimicrobial and antioxidant chitosan cryogel as a wound dressing material
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In this study, a herbal infused oil (Hypericum perforatum, HP) incorporated chitosan (CS) cryogel as a wound dressing material was produced in order to be used in wound healing process. The main strategy is to combine the traditional perspective of using medicinal oils with polymeric scaffolds
The water extract of tutsan (Hypericum androsaemum L.) red berries exerts antidepressive-like effects and in vivo antioxidant activity in a mouse model of post-stroke depression.
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Hypericum androsaemum L., commonly known as 'tutsan' or 'shrubby St. John's Wort', is a member of the Hypericum genus found growing spontaneously in the Mediterranean area and is cultivated extensively as an ornamental plant due to the showy color variation in its fresh berry-like capsules, which
Cytotoxic activity of antioxidant constituents from Hypericum triquetrifolium Turra.
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The Sulforodamine B (SRB) assay was used to test cytotoxicity against four human cancer cell lines and one normal cell line of antioxidant constituents isolated from Hypericum triquetrifolium Turra. Methanolic extract and pure compounds were tested against the large cell lung carcinoma cell line
Antioxidant activity of methanolic extract of Hypericum triquetrifolium Turra aerial part.
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The antioxidant activity of the methanol extract of Hypericum triquetrifolium Turra (Hypericaceae) aerial part and of flavonoids isolated therein, I3,II8-biapigenin, quercetin-3-O-galactoside, kaempferol-3-O-glycoside, (-)-epicatechin and hypericin, was evaluated. The IC(50) resulted between 0.062
[Antioxidant properties of plant extracts].
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Investigation of antioxidant properties of some plants was carried out. A group of plants exhibited antimicrobial activity was studied in detail. Efficiency of plants as antioxidants was tested by the influence of their extracts on the yield of photochemiluminescence of Gly-Trp solutions.
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