lindera umbellata/antioxidant

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Lucidone protects human skin keratinocytes against free radical-induced oxidative damage and inflammation through the up-regulation of HO-1/Nrf2 antioxidant genes and down-regulation of NF-κB signaling pathway.

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We investigated the protective effects of lucidone, a naturally occurring cyclopentenedione isolated from the fruits of Lindera erythrocarpa Makino, against free-radical and inflammation stimulator 2,2'-azobis (2-amidinopropane) dihydrochloride (AAPH)-induced oxidative stress in human keratinocyte

Natural antioxidants may prevent posttraumatic epilepsy: a proposal based on experimental animal studies.

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Head injury or hemorrhagic cortical infarction results in extravasation of blood and breakdown of red blood cells and hemoglobin. Iron liberated from hemoglobin, and hemoglobin itself, are associated with the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS). ROS and

Biological screening of 100 plant extracts for cosmetic use (II): anti-oxidative activity and free radical scavenging activity.

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Methanol aqueous extracts of 100 plants were screened for anti-oxidative activity using Fenton's reagent/ethyl linoleate system and for free radical scavenging activity using the 1,1-diphenyl-2-picryl hydrazyl free radical generating system. The results suggest that 14 plants - Alpinia officinarum,

Antioxidant and antibacterial activities of the leaf essential oils of Himalayan Lauraceae species.

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The leaf essential oils from seven Himalayan Lauraceae species viz. Neolitsea pallens, Lindera pulcherrima, Dodecadenia grandiflora, Persea duthiei, Persea odoratissima, Persea gamblei and Phoebe lanceolata exhibited potent antioxidant and antibacterial activities. The in vitro antioxidant activity

Separation of the antioxidant compound quercitrin from Lindera obtusiloba Blume and its antimelanogenic effect on B16F10 melanoma cells.

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Considering the growing evidence of the presence of antioxidant compounds in plant extracts, the objectives of this study were to identify antioxidant compounds in Lindera obtusiloba Blume (Lauraceae) and to evaluate their antimelanogenic activities on B16F10 melanoma cells. Organic solvent

Antioxidant and antibacterial activities of the leaf essential oil and its constituents furanodienone and curzerenone from Lindera pulcherrima (Nees.) Benth. ex hook. f.

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BACKGROUND Lindera pulcherrima (Nees.) Benth. ex Hook. f. (Family: Lauraceae), an evergreen shrub, is an important medicinal plant distributed in temperate Himalayan regions. The leaves and bark are used as spice in cold, fever, and cough. METHODS In this study, the terpenoid composition,

Quercetin‑3‑O‑α‑L‑rhamnopyranoside derived from the leaves of Lindera aggregata (Sims) Kosterm. evokes the autophagy‑induced nuclear factor erythroid 2‑related factor 2 antioxidant pathway in human umbilical vein endothelial cells.

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Quercetin‑3‑O‑α‑L‑rhamnopyranoside (QI) is derived from the leaves of Lindera aggregata (Sims) Kosterm. And exhibits multiple biological activities, including an antioxidant activity. However, the detailed molecular mechanism of its antioxidant activity remains unknown. The aim of the present study

Antioxidant activities of uyaku (lindera strychnifolia) leaf extract: a natural extract used in traditional medicine.

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Uyaku (Lindera strychnifolia, Sieb. et Zucc.) is used in traditional Asian medicine to treat stomach and renal diseases, neuralgia, rheumatism, and aging. In this study, the effects of lyophilized extracts on hydroxyl ((.)OH) and superoxide (O(2) (.-)) radicals were examined using an electron spin

Assessing the antioxidant, cytotoxic, apoptotic and wound healing properties of silver nanoparticles green-synthesized by plant extracts.

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We synthesized silver nanoparticles using thirty Chinese plant extracts via a green synthetic strategy. UV-visible spectra showed that the silver nanoparticles have an absorbance at 450 nm. Among the thirty extracts, seven extracts (Cratoxylum formosum, Phoebe lanceolata, Scurrula parasitica,

Flavonoids from Lindera glauca Blume as low-density lipoprotein oxidation inhibitors.

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In order to identify antioxidant flavonoids from Lindera glauca Blume, we performed phytochemical analysis of L. glauca Blume heartwood and isolated eight flavonoids - lindeglaucol (1), lindeglaucone (2), cilicicone B (3), tamarixetin 3-O-α-L-rhamnoside (4), procyanidin A2 (5), cinnamtannin B1 (6),

[Effects of nitrogen deposition on leaf physiological and ecological characteristics of Lindera aggregata seedlings].

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From June 2010 to July 2011, a pot experiment was conducted to explore the effects of nitrogen deposition on the leaf physiological and ecological characteristics of Lindera aggregate seedlings. Three levels of NH4NO3, i. e., low-N (2 g x m(-2) x a(-1)), medium-N (8 g x m(-2) x a(-1)), and high-N

Lindera glauca (Siebold et Zucc.) Blume Stem Extracts Protect Against tert-Butyl Hydroperoxide-Induced Oxidative Stress.

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In this study, we investigated the antioxidant and protective effect of Lindera glauca stem (LGS) extracts against oxidative stress. We compared antioxidant properties of water extract (LGSW) with ethanol extract (LGSE) by determining the contents responsible for antioxidant activities such

[Isolation and preparation of flavones from the leaves of Lindera aggregata using high speed counter-current chromatography].

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Lindera aggregata (Sims) Kosterm. belongs to Lauraceae family and is distributed in the southern parts of China, Japan and southeastern Asia. The leaves of this plant are frequently used in folk medicine, as antioxidant, antiinflammatory and antibacterial. In previous reports, eleven flavones were

Pharmacokinetics and Tissue Distribution Study of Pinosylvin in Rats by Ultra-High-Performance Liquid Chromatography Coupled with Linear Trap Quadrupole Orbitrap Mass Spectrometry.

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Pinosylvin is a potential anti-inflammatory and antioxidant compound and the major effective medicinal ingredient in the root of Lindera reflexa Hemsl. However, few investigations have been conducted regarding the pharmacokinetics, excretion, characteristics of tissue distribution, and major

Cytoprotective effects of lindenenyl acetate isolated from Lindera strychnifolia on mouse hippocampal HT22 cells.

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Oxidative injury contributes to neuronal degeneration in many central nervous system (CNS) diseases, such as Parkinson's disease, Alzheimer's disease, epilepsy and ischemia. Inducible heme oxygenase (HO)-1 acts against oxidants that are thought to play a role in the pathogenesis of these diseases.

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