Albanian
Arabic
Armenian
Azerbaijani
Belarusian
Bengali
Bosnian
Catalan
Czech
Danish
Deutsch
Dutch
English
Estonian
Finnish
Français
Greek
Haitian Creole
Hebrew
Hindi
Hungarian
Icelandic
Indonesian
Irish
Italian
Japanese
Korean
Latvian
Lithuanian
Macedonian
Mongolian
Norwegian
Persian
Polish
Portuguese
Romanian
Russian
Serbian
Slovak
Slovenian
Spanish
Swahili
Swedish
Turkish
Ukrainian
Vietnamese
Български
中文(简体)
中文(繁體)
biapigenin/pljuskavica
Veza se sprema u međuspremnik
Stranica 1 iz 35 rezultatima
Liquid chromatography-tandem mass spectrometry of I3,II8-biapigenin, the major biflavone in Hypericum perforatum extracts.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
High-performance liquid chromatography method coupled with tandem mass spectrometry was developed for the quantitative determination of I3,II8-biapigenin. The procedure includes solid-phase extraction and separation on an XTerra MS C18. The assay was linear over a wide range; precision and accuracy
Biflavonoids in Hypericum perforatum1; Part 1. Isolation of I3, II8-Biapigenin.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
From the Soxhlet extract of HYPERICUM PERFORATUM, biflavonoids have been isolated by column chromatography on Sephadex LH 20 and preparative TLC. The structure of the main compound was elucidated by UV-, (1)H- and (13)C-NMR spectroscopy and MS as I3,II8-Biapigenin.
Quercetin, kaempferol and biapigenin from Hypericum perforatum are neuroprotective against excitotoxic insults.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
In the present study we investigated the effects of phenolic compounds present in Hypericum perforatum against neuronal excitotoxicity and mitochondrial dysfunction. Quercetin, kaempferol and biapigenin significantly reduced neuronal death caused by 100 microM kainate plus 100 microM
Biapigenin modulates the activity of the adenine nucleotide translocator in isolated rat brain mitochondria.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
In this study, we investigated the effects of biapigenin, a biflavone present in the extracts of Hypericum perforatum, in rat brain mitochondrial bioenergetics and calcium homeostasis. We found that biapigenin significantly decreased adenosine diphosphate (ADP)-induced membrane depolarization and
In vitro binding studies with two hypericum perforatum extracts--hyperforin, hypericin and biapigenin--on 5-HT6, 5-HT7, GABA(A)/benzodiazepine, sigma, NPY-Y1/Y2 receptors and dopamine transporters.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
Interactions between neurotransmitter receptors involved in the pathophysiology of depression, anxiety and ethanol consumption and two extracts (hydromethanolic and lipophilic extracts obtained with hypercritical CO2) from Hypericum Perforatum L or St. John's wort (SJW) and three constituents
Development of an LC-MS method for simultaneous quantitation of amentoflavone and biapigenin, the minor and major biflavones from Hypericum perforatum L., in human plasma and its application to real blood.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
BACKGROUND
Biflavones of Hypericum perforatum L. are bioactive compounds used in the treatment of inflammation and depression. Determination of amentoflavone and biapigenin from blood is challenging owing to their similar structures and low concentrations.
OBJECTIVE
To develop a rapid, sensitive and
Comparison of the synaptosomal uptake inhibition of serotonin by St John's wort products.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
Although the number of prescriptions for psychotropic drugs has decreased in recent years, prescriptions for antidepressants are still increasing (Fritze 2002). Hypericum perforatum (St John's wort) is the main psychotherapeutic herbal medicinal product used for treatment of mild-to-moderate
Benzophenone O-glycosides from Hypericum elegans.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
Elegaphenonoside, a new benzophenone O-rhamnoside, together with two known benzophenone O-glycosides, namely hypericophenonoside and neoannulatophenonoside, were isolated from the aerial parts of Hypericum elegans Stephan ex Willd. The structure of the new compound was established as
Cytotoxic activity of antioxidant constituents from Hypericum triquetrifolium Turra.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
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.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
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
Quantitative changes of dianthrones, hyperforin and flavonoids content in the flower ontogenesis of Hypericum perforatum.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
Samples of Hyperici herba were obtained by harvesting Hypericum perforatum L. in different plant development stages. The relation of flower development phases in the drug's flower fraction was examined. The HPLC method was then employed for the analysis of the content of secondary metabolites in
Identification of the major constituents of Hypericum perforatum by LC/SPE/NMR and/or LC/MS.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
The newly established hyphenated instrumentation of LC/DAD/SPE/NMR and LC/UV/(ESI)MS techniques have been applied for separation and structure verification of the major known constituents present in Greek Hypericum perforatum extracts. The chromatographic separation was performed on a C18 column.
Significance of genetic and environmental aspects in the field cultivation of Hypericum perforatum.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
Agronomical and biochemical parameters of seven Hypericum perforatum (St. John's wort) accessions grown at three experimental sites in Switzerland were followed over a two year period (1995-1996). Significant effects of environmental (= site) and genetic factors (= accession) on flowering dates,
TLC-Direct Bioautography as a Bioassay Guided Method for Investigation of Antibacterial Compounds in Hypericum perforatum L.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
Fast high-throughput TLC-direct bioautography (DB) is an effect-directed analysis method that enables searching for biologically active (e.g., antimicrobial) substances in complex mixtures like plant extracts. The principle of the method is that separation and detection of biological properties of
Cellular reactive oxygen species inhibitory constituents of Hypericum thasium Griseb.
Samo registrirani korisnici mogu prevoditi članke
Prijava Registriraj se
The phytochemical investigation of the ethyl acetate extract of Hypericum thasium has led to the characterization of four benzophenone derivatives 1-4, a known benzophenone 5 and four known flavonoids, quercetin (6), quercitrin (7), isoquercetin (8), and 3, 8''-biapigenin (9). Lucigenin- and
Najkompletnija baza ljekovitog bilja potpomognuta znanošću
- Radi na 55 jezika
- Biljni lijekovi potpomognuti znanošću
- Prepoznavanje bilja slikom
- Interaktivna GPS karta - označite bilje na mjestu (uskoro)
- Pročitajte znanstvene publikacije povezane s vašom pretragom
- Pretražite ljekovito bilje po učincima
- Organizirajte svoje interese i budite u toku s istraživanjem vijesti, kliničkim ispitivanjima i patentima
Upišite simptom ili bolest i pročitajte o biljkama koje bi mogle pomoći, unesite travu i pogledajte bolesti i simptome protiv kojih se koristi.
* Svi podaci temelje se na objavljenim znanstvenim istraživanjima
