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Polyphenols and antioxidant activity of calafate ( Berberis microphylla ) fruits and other native berries from Southern Chile.

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Calafate ( Berberis microphylla ) is a native berry grown in the Patagonian area of Chile and Argentina. In the present study the phenolic composition and antioxidant activity of its fruits were studied and also compared with data obtained for other berry fruits from southern Chile including maqui (

Effect of extraction conditions on antioxidant activity of barberry (Berberis vulgaris L.) fruit extracts.

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Barberry fruit is consumed in different forms including dried fruit, juice, jam and marmalade in Iran. This fruit is also used as a food additive (flavoring and colorant) in soup and rice dishes. In present study, antioxidant activities of acetone, ethanol and water (infusion and decoction) extracts

In vitro antioxidant effects of barberry fruit extracts.

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A vast majority of the studies addressing the free radicals including hydroxyl radical is a damage compound of biochemical molecules such as DNA, proteins and lipids. When free radicals specially hydroxyl radical are not adequately removed from the body, it may damage biological macromolecules,

Lipoxygenase inhibition and antioxidant properties of protoberberine and aporphine alkaloids isolated from Mahonia aquifolium.

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Products of lipoxygenase metabolism play a role in the pathogenesis of psoriasis. Four protoberberine alkaloids, berberine, oxyberberine, jatrorrhizine, columbamine, and two aporphine alkaloids, magnoflorine, and corytuberine, isolated from Mahonia aquifolium, were tested for lipoxygenase

Antiradical and antioxidant activities of alkaloids isolated from Mahonia aquifolium. Structural aspects.

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The antioxidant activities of three alkaloids isolated from Mahonia aquifolium--berberine, jatrorrhizine, and magnoflorine--were studied with respect to their structural aspects, particularly the presence and the position of -OH groups, steric conditions of unpaired electron delocalization and

Antioxidant and anti-inflammatory compounds in the popular landscape plant Berberis thunbergii var. atropurpurea.

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Berberis thunbergii var, atropurpurea. DC is one of the popular landscape plants in the USA, but until now lacked report on its chemical composition and biological properties. In this study, the antioxidant and anti-inflammatory activities of the methanolic extract and pure isolates of B. thunbergii

Chemical Composition, Antioxidant and Cytotoxic Activities of Roots and Fruits of Berberis libanotica.

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Fourteen compounds belonging to different chemical classes were characterized in the roots and fruits extracts from Berberis libanotica, using the same HPLC-DAD-MS method. Thirteen were reported, for the first time, from the fruits whereas the roots contained mostly alkaloids of which 3 out of 5 are

Berberis aetnensis and B. libanotica: a comparative study on the chemical composition, inhibitory effect on key enzymes linked to Alzheimer's disease and antioxidant activity.

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OBJECTIVE This study involves for the first time the evaluation of Berberis aetnensis C. Presl. and Berberis libanotica Ehrenb. ex C.K. Schneid. roots for anticholinesterase and antioxidant properties, with the aim to search compounds possibly useful for the treatment of Alzheimer's disease

Studies on the Dual Cytotoxicity and Antioxidant Properties of Berberis vulgaris Extracts and Its Main Constituent Berberine.

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The present study attempts to investigate the cytotoxic activity of ethanol and ethyl acetate extracts of the Moroccan Berberis vulgaris and its major component berberine, together with exploring their antioxidant properties. It also consists of studying the combination effect of berberine and

Beneficial antioxidative effect of the homeopathic preparation of Berberis vulgaris in alleviating oxidative stress in experimental urolithiasis.

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BACKGROUND Oxidative stress is a major mediator in the pathophysiology of several kidney diseases. The cellular damage is mediated by an alteration in the antioxidant status, which increases the concentration of reactive oxygen species (ROS) in the stationary state (oxidative stress). Therefore,

Hydrophilic and lipophilic antioxidant capacities of Georgian spices for meat and their possible health implications.

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Georgian cuisine is famous for its spices for meat dishes. Many spices are rich in polyphenols and other antioxidants that reduce the formation of carcinogenic products during thermal processing of meat and counteract its adverse health effects. In spite of the relative popularity of meat dishes,

Voltammetric determination of antioxidant character in Berberis lycium Royel, Zanthoxylum armatum and Morus nigra Linn plants.

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The antioxidant activity potential of three different plant extracts was investigated against superoxide anion radical while employing cyclic voltammetry technique. The plants Berberis lyceum Royle, Morus nigra Linn and Zanthoxylum armatum were selected because of their potential use in the

Superior Antioxidant Capacity of Berberis iliensis-HPLC-Q-TOF-MS Based Phytochemical Studies and Spectrophotometric Determinations

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The aim of the present study was to determine the composition, antiradical and antimicrobial activity of fruits, leaves and roots of an underestimated species of barberry-Berberis iliensis-growing in Kazakhstan. Particular attention was paid to the determination of the composition of its

Application of pH-zone refining hydrostatic countercurrent chromatography (hCCC) for the recovery of antioxidant phenolics and the isolation of alkaloids from Siberian barberry herb.

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The development of a fast hCCC method tailored to recover phenolics of Siberian barberry (Berberis sibirica, Berberidaceae) responsible for the observed strong antioxidant activity was performed. Initially, the optimization of extraction procedure was evaluated based on the antiradical potential

Antioxidants and antiinflammatory dietary supplements for osteoarthritis and rheumatoid arthritis.

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OBJECTIVE To review efficacy studies of antioxidant and antiinflammatory dietary supplements used to manage osteoarthritis (OA) and rheumatoid arthritis (RA) and make conclusions about their place in therapy. Glucosamine, chondroitin, and methyl sulfonyl methane were excluded. METHODS A literature

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