iris/antioxidans

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Antioxidant enzymes in the human iris: an immunogold study.

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OBJECTIVE To determine the nature and extent of the antioxidant enzyme system in the human iris. METHODS The fine structural distribution of five antioxidant enzymes (acidic, neutral, and basic glutathione S-transferase (GST), Cu/Zn superoxide dismutase (Cu/Zn SOD), and glutathione peroxidase) was

Antioxidant flavonoids and isoflavonoids from rhizomes of Iris pseudopumila.

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Chromatographic separation of a methanolic extract from Iris pseudopumila rhizomes led to the isolation of two new natural compounds, irilone 4'-O-[beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside] and isoscutellarein 6-C-beta-D-glucopyranoside, along with 9 isoflavonoids and 4 flavonoids. Their

Flavonoids from Iris songarica and their antioxidant and estrogenic activity.

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A new dihydroflavonol, songaricol ( 1) and seven known flavonoids, ayamenin A ( 2), irisflavone A ( 3), 5,7-dihydroxy-2',6-dimethoxyisoflavone ( 4), irilin B ( 5), 5,3'-dihydroxy-7,8,2'-trimethoxyisoflavone ( 6) and irisoid A ( 7) were isolated from rhizome and roots of IRIS SONGARICA. Structure

Brackish Eutrophic Water Treatment by Iris pseudacorus L.-Planted Microcosms: Physiological Responses of Iris pseudacorus L. to Salinity.

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Iris pseudacorus L. has been widely used in aquatic ecosystem to remove nutrient and has achieved positive effects. However, little is known regarding the nutrient-removal performance and physiological responses of I. pseudacorus for brackish eutrophic water treatment due to high nutrients combined

Phenolic, flavonoid contents, anticholinesterase and antioxidant evaluation of Iris germanica var; florentina.

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This study was designed to investigate antioxidant and anticholinesterase potential of Iris germanica var; florentina. Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory potential of plant samples were investigated by Ellman's assay. Antioxidant activity was performed using

Estrogen attenuates renal IRI through PPAR-γ agonism in rats.

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Estrogen is reported to be renoprotective agent in various preclinical studies, attributing to its antioxidant and anti-inflammatory potential. The aim of present study was to investigate the involvement of peroxisome proliferator-activated receptor-γ (PPAR-γ) in estrogen-mediated protection against

Antioxidant and anticholinesterase constituents from the petroleum ether and chloroform extracts of Iris suaveolens.

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The aim of this study was to investigate the phytochemical, antioxidant and anticholinesterase activities of Iris suaveolens. After determining total phenolic and flavonoid contents of the petroleum ether, chloroform and methanol extracts prepared from the rhizomes, the antioxidant capacity of the

[Dependence of lipid peroxidation on pigmentation of the porcine iris].

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OBJECTIVE Melanin has been shown to act as antioxidant in lipid peroxidation studies. We have now investigated lipid peroxidation in dependence on stromal pigmentation in isolated porcine irises. METHODS The same number of lightly pigmented and heavily pigmented porcine irises (visual selection)

Cardioprotective effect of Pycnogenol in ischemic-reperfusion injury (IRI) in rats.

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Oxidative stress plays a critical task in the biochemical and pathological alteration linked with myocardial ischemic-reperfusion injury (IRI). This warrants identifying agents with a potential for preventing such damage in an effective way. A novel plant based product, Pycnogenol, obtained from the

Antioxidative systems, metal ion homeostasis and cadmium distribution in Iris lactea exposed to cadmium stress.

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Iris lactea is a perennial halophyte and is tolerant to Cd. However, the mechanisms underlying this Cd tolerance are still poorly understood. In this study, morphological, physiological and biochemical responses of I. lactea to a 21 d exposure to different concentrations of Cd (0-150mgL-1) were

The pigmentation of human iris influences the uptake and storing of zinc.

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Age-related macular degeneration (AMD) is more prevalent among the elderly Caucasians than in Africans. A significant association between light iris colour, fundus pigmentation and incidence of AMD is reported, suggesting a possible correlation with melanin pigment. Zinc is known to bind to melanin

Cadmium Toxicity and Alleviating Effects of Exogenous Salicylic Acid in Iris hexagona.

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Cadmium (Cd) toxictity and possible role of salicylic acid (SA) in alleviating Cd-induced toxicity were investigated on ornamental hydrophyte Iris hexagona. Compared to the control, treatments with 100 and 500 µM Cd for 7 days significantly decreased dry weight, the contents of chlorophyll,

Phytochemical Analysis and Total Antioxidant Capacity of Rhizome, Above-Ground Vegetative Parts and Flower of Three Iris Species.

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This study was aimed at investigating the phytochemical composition and antioxidant capacity of rhizomes, above-ground vegetative parts and flowers of three Iris species: Iris humilis Georgi, Iris pumila L. and Iris variegata L. UHPLC-Orbitrap MS analysis was used for determination of phytochemical

Pb uptake and toxicity to Iris halophila tested on Pb mine tailing materials.

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Pb tolerant mechanisms, plant physiological response and Pb sub-cellular localization in the root cells of Iris halophila were studied in sand culture and the Pb mine tailings. Results showed that the activities of superoxide dismutase (SOD) and peroxidase (POD) in the underground parts and the

LC-MS Guided Isolation of Bioactive Principles from Iris hookeriana and Bioevaluation of Isolates for Antimicrobial and Antioxidant Activities.

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The genus Iris is diverse both in the abundance of secondary metabolities as well as the biological activities. The rhizomes of Iris hookeriana exhibit significant anthelminthic activity against gastrointestinal nematodes of sheep. Although Iris hookeriana has been a subject of the study of so many

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