نتایج جستجو برای: methoxylated flavonoids

تعداد نتایج: 18612  

Aerial parts of Salvia Mirzayanii was extracted with methanol. Methanol extract was suspended in water and defatted with petroleum ether. The defatted part was then partitioned between ethyl acetate and water. The ethyl acetate partition was chromatographed on a silica gel column to afford several fractions. Lymphocyte proliferation inhibitory assay of the resulted fractions was compared in vit...

Journal: :Neurochemistry International 2016
Isadora Matias Andrea Schmidt Buosi Flávia Carvalho Alcantara Gomes

In the last decade, there have been major advances in the understanding of the role of glial cells as key elements in the formation, maintenance and refinement of synapses. Recently, the discovery of natural compounds capable of modulating nervous system function has revealed new perspectives on the restoration of the injured brain. Among these compounds, flavonoids stand out as molecules easil...

2017
Haneen Amawi Charles R. Ashby Amit K. Tiwari

Flavonoids are polyphenols that are found in numerous edible plant species. Data obtained from preclinical and clinical studies suggest that specific flavonoids are chemo-preventive and cytotoxic against various cancers via a multitude of mechanisms. However, the clinical use of flavonoids is limited due to challenges associated with their effective use, including (1) the isolation and purifica...

2002
Alan L. Miller

Flavonoids occur in most plant species, and account for a significant percentage of the chemical constituents of some; e.g. dried green tea leaves contain approximately 30% flavonoids by weight. Flavonoids have been shown to have antibacterial, anti-inflammatory, antiallergic, antimutagenic, antiviral, antineoplastic, anti-thrombotic, and vasodilatory activity. The potent antioxidant activity o...

2007
Vojtech Adam Radka Mikelova Jaromir Hubalek Pavel Hanustiak Miroslava Beklova Petr Hodek Ales Horna Libuse Trnkova Marie Stiborova Ladislav Zeman Rene Kizek

About biological affecting of flavonoids on animal organisms is known less,thus we selected flavonoids, flavanones and flavones, and their glycosides, which wereexamined as potential inducers of cytochrome(s) P450 when administrated by gavages intoexperimental male rats. The study was focused on induction of CYP1A1, the majorcytochrome P450 involved in carcinogen activation. The data obtained d...

Journal: :Carcinogenesis 2014
Bhaskar Kahali Stefanie B Marquez Kenneth W Thompson Jinlong Yu Sarah J B Gramling Li Lu Aaron Aponick David Reisman

Flavonoids have been extensively studied and are well documented to have anticancer effects, but it is not entirely known how they impact cellular mechanisms to elicit these effects. In the course of this study, we found that a variety of different flavonoids readily restored Brahma (BRM) in BRM-deficient cancer cell lines. Flavonoids from each of the six different structural groups were effect...

Journal: :The Journal of experimental biology 2016
Jacopo G Cecere Manuela Caprioli Chiara Carnevali Graziano Colombo Isabella Dalle-Donne Elisa Mancuso Aldo Milzani Marco Parolini Antea Portanova Nicola Saino Lorenzo Serra Diego Rubolini

Flavonoids are the most abundant plant polyphenols, widely occurring in fruits and berries, and show a strong antioxidant activity in vitro Studies of avian species feeding on berries suggest that dietary flavonoids have health-promoting effects and may enhance the expression of melanin-based plumage traits. These effects are probably mediated by the antioxidant activity of flavonoids. However,...

2014
Yang Tao Deqing Wang Yuanliang Hu Yee Huang Yun Yu Deyun Wang

The aim of this study was to investigate and assess the effects of propolis flavonoids liposome imposed on the immune system by comparing it to propolis flavonoids and blank liposome. In vitro, the effects of the above drugs on macrophages were assessed by measuring the phagocytic function and cytokine production. In vivo, the immunological adjuvant activity of propolis flavonoids liposome was ...

Journal: :journal of medicinal plants and by-products 0

reseda (tourn.) et l. is a genus inresedaceae family with 153 species and subspecies in the world and 14 species in iran. some flavonoid compounds have been reported from the reseda genus. flavonoids are as one set of the polyphenolic compounds among secondary metabolites in different organs of plants that are used in plant chemotaxonomy. they have basic role in pollination and life cycle of an...

Journal: :Molecules 2011
Maria Carla Marcotullio Federica Messina Massimo Curini Antonio Macchiarulo Marco Cellanetti Donata Ricci Laura Giamperi Anahi Bucchini Alba Minelli Anna Lisa Mierla Ilaria Bellezza

By bioguided fractionation of the hexane extract of Commiphora erythraea resin we isolated four furanosesquiterpenoids that were tested for their protective activity against oxidative stress. Furanodienone and 1,10(15)-furanogermacra-dien-6-ones showed to be potent inhibitors of lipid peroxidation (IC(50) of -0.087 μM), being more active than the methoxylated analogues. Furthermore, using BV2 m...

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