actaea dahurica/antioxidant

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Comparison of phenolic content and antioxidant activity of Actaea racemosa L. and Actaea cordifolia DC.

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Actaea racemosa L. is used as a component of drugs or dietary supplements to alleviate the menopause symptoms. Its biological activity is associated with the presence of phenolic compounds. In our work, the analysis of isoflavones and phenolic acids - caffeic acid (CA), ferulic acid and isoferulic

Estimation of Total Phenols and Flavonoids in Extracts of Actaea spicata Roots and Antioxidant Activity Studies.

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Actaea spicata Linn. (Ranunculaceae) has been traditionally used for the treatment of various ailments such as rheumatism, inflammation, nerve diseases, lumbago, scrofula and chorea, but no systematic phytochemical and pharmacological work has ever been carried out on this potential plant.

Investigation of antioxidant interactions between Radix Astragali and Cimicifuga foetida and identification of synergistic antioxidant compounds.

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The medicinal plants of Huang-qi (Radix Astragali) and Sheng-ma (Cimicifuga foetida) demonstrate significantly better antioxidant effects when used in combination than when used alone. However, the bioactive components and interactional mechanism underlying this synergistic action are still not well

Polyphenolic compounds with antioxidant potential and neuro-protective effect from Cimicifuga dahurica (Turcz.) Maxim.

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Three new phenolic compounds (1-3), along with five known compounds (4-8) were isolated from the rhizome of Cimicifuga dahurica (Turcz.) Maxim. Their structures were elucidated by spectroscopic methods including 1D-NMR, 2D-NMR and HR-MS techniques. DPPH method and protective effect on PC12 cells

Antioxidant capacity of 55 medicinal herbs traditionally used to treat the urinary system: a comparison using a sequential three-solvent extraction process.

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BACKGROUND The prevalence of chronic renal disease exceeds 10% in industrialized societies. Oxidative damage is thought to be one of the main mechanisms involved in nearly all chronic renal pathologies. OBJECTIVE We aimed to use the oxygen radical absorbance capacity (ORAC) method and a sequential

Interference of plant extracts, phytoestrogens and antioxidants with the MTT tetrazolium assay.

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The MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay is a widely used screening method to measure cell viability and proliferation. When testing the effects of kaempferol on breast cancer cell number (crystal violet staining) and viability (MTT tetrazolium assay) conflicting

Analysis of polyphenolic compounds and radical scavenging activity of four American Actaea species.

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A reversed-phase high-performance liquid chromatography (RP-HPLC) method with diode array detection has been developed for analysis of the major polyphenols in the roots and rhizomes of black cohosh (Actaea racemosa), an important botanical dietary supplement for women's health, and three closely

Black cohosh (Cimicifuga racemosa L.) protects against menadione-induced DNA damage through scavenging of reactive oxygen species: bioassay-directed isolation and characterization of active principles.

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The roots/rhizomes of Cimicifuga racemosa L. (Nutt.) (black cohosh) have traditionally been used to treat menopausal symptoms through an unknown mechanism of action. In an effort to determine if black cohosh had additional health benefits, methanol extracts were investigated for their potential to

In vivo effects of black cohosh and genistein on estrogenic activity and lipid peroxidation in Japanese Medaka (Oryzias latipes).

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This study was designed to assay the estrogenic activities and the antioxidant potential of ethanol extracts from the herbal dietary supplement black cohosh (Cimicifuga racemosa) relative to the natural phytoestrogen genistein. The in vivo mechanisms of action of these two natural products have not

9,10-seco-9,19-Cyclolanostane arabinosides from the roots of Actaea podocarpa.

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Seven 9,10-seco-9,19-cyclolanostane arabinosides, named podocarpasides A-G (1-7), were isolated from the roots of Actaea podocarpa DC., a species closely related to black cohosh (a well known dietary supplement). Their structures were determined with the help of spectroscopic data including

New cycloartane-type triterpene arabinosides from the roots of Actaea podocarpa and their biological study.

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Three new cycloartane-type triterpene arabinosides, podocarpasides H - J (1 - 3) were isolated from the roots of Actaea podocarpa (Ranunculaceae). Their structures were determined by spectroscopic and chemical methods. The isolates were tested for cytotoxic, estrogenic, antioxidant, and

Phytochemical study of actaea rubra and biological screenings of isolates.

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A phytochemical study on the chemical constituents of the roots of Actaea rubra led to the isolation and characterization of eleven xylosides of 9,19-cyclolanostane type triterpenes including the new rubraside A (1) and a beta-sitosterol glucoside. The structures of the isolates were determined with

Polyphenolic constituents of Actaea racemosa.

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A new lignan, actaealactone (1), and a new phenylpropanoid ester derivative, cimicifugic acid G (2), together with 15 known polyphenols, protocatechuic acid, protocatechualdehyde, p-coumaric acid, caffeic acid, methyl caffeate, ferulic acid, ferulate-1-methyl ester, isoferulic acid,

Unique phenolic constituent in Cimicifuga dahurica (Turcz.) Maxim. through Box-Behnken design and response surface methodology.

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Cimicifuga dahurica (Turcz.) Maxim. exerts significant antioxidative due to its high phenolic constituent content. In this study, the extraction condition of the phenolic constituents and antioxidant effect was optimized by the Box-Behnken design and response surface methodology. Eleven main

Actein ameliorates hepatic steatosis and fibrosis in high fat diet-induced NAFLD by regulation of insulin and leptin resistant.

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Insulin and leptin resistance are highly involved in metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). Presently, no approved treatment is available. Actein is isolated from the rthizomes of Cimicifuga foetida, a triterpene glycoside, exhibiting important biological properties, such

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