antioxidant and prooxidant effects of polyphenol compounds

antioxidant and prooxidant effects of polyphenol compounds on

Antioxidant and prooxidant effects of polyphenol compounds on

Antioxidant and prooxidant effects of polyphenol compounds on copper-mediated DNA damage J Inorg Biochem . 2011 May;105(5):745-53. doi: 10.1016/j.jinorgbio.2011.02.009.

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antioxidant and prooxidant effects of polyphenol compounds on

Antioxidant and prooxidant effects of polyphenol compounds on

Interestingly, gel electrophoresis experiments for the thirteen polyphenol compounds revealed several different effects on copper-mediated DNA damage: antioxidant activity, prooxidant activity, and both antioxidant and prooxidant activity depending on polyphenol concentration (Fig. 3 and Table 1; additional gel electrophoresis data are provided

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antioxidant and pro-oxidant effects of polyphenolic compounds

Antioxidant and Pro-Oxidant Effects of Polyphenolic Compounds

Antioxidant and Pro-Oxidant Effects of Polyphenolic Compounds and Structur e-Activity Relationship Evidence 27 important database is the Phenol-Explorer version 1.5.7 (database on polyphenol content in foods) (INRA & Wishart Research Group, 2009). It contains more than 35.000 content values for 500 different polyphenols in more than 400 foods.

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antioxidant and prooxidant effects of polyphenol compounds on

Antioxidant and prooxidant effects of polyphenol compounds on

Another www.intechopen.com Antioxidant and Pro-Oxidant Effects of Polyphenolic Compounds and Structure-Activity Relationship Evidence 27 important database is the “Phenol-Explorer” version 1.5.7 (database on polyphenol content in foods) (INRA & Wishart Research Group, 2009).

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the role of antioxidant versus pro-oxidant effects of green

The role of antioxidant versus pro-oxidant effects of green

Green tea polyphenols are believed to be responsible for this cancer preventive effect, and the antioxidant activity of the green tea polyphenols has been implicated as a potential mechanism. This hypothesis has been difficult to study in vivo due to metabolism of these compounds and poor understanding of the redox environment in vivo.

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antioxidant and prooxidant effects of polyphenol compounds on

Antioxidant and prooxidant effects of polyphenol compounds on

Request PDF | Antioxidant and prooxidant effects of polyphenol compounds on copper-mediated DNA damage | Inhibition of copper-mediated DNA damage has been determined for several polyphenol compounds.

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antioxidant and prooxidant effects of polyphenol compounds on

Antioxidant and prooxidant effects of polyphenol compounds on

Inhibition of copper-mediated DNA damage has been determined for several polyphenol compounds. The 50% inhibition concentration values (IC(50)) for most of the tested polyphenols are between 8 and 480 μM for copper-mediated DNA damage prevention. Although most tested polyphenols were antioxidants under these conditions, they generally inhibited Cu(I)-mediated DNA damage less effectively than

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the role of antioxidant versus pro-oxidant effects of green

The role of antioxidant versus pro-oxidant effects of green

Green tea polyphenols are believed to be responsible for this cancer preventive effect, and the antioxidant activity of the green tea polyphenols has been implicated as a potential mechanism. This hypothesis has been difficult to study in vivo due to metabolism of these compounds and poor understanding of the redox environment in vivo.

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antioxidant and pro-oxidant effects of polyphenolic compounds

Antioxidant and Pro-Oxidant Effects of Polyphenolic Compounds

Oxidation effects could be redu ced by dietary antioxidants (e.g. polyphenolic compounds) (Ferrari & Torres, 2003). Fortunately, in the hu man body, there is a balance between oxidant

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antioxidant and prooxidant properties of a polyphenol‐rich

Antioxidant and prooxidant properties of a polyphenol‐rich

A polyphenol‐rich extract from Geranium sanguineum L. (PC) protected biological membranes due to its antioxidant capacity. PC caused a dose‐dependent decrease of the osmotic hemolysis of human erythrocytes and increased their resistance against the toxic effect of H 2 O 2; no effect on catalase activity was observed. While PC reduced the

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"effects of polyphenol compounds on iron-and copper-mediated

"EFFECTS OF POLYPHENOL COMPOUNDS ON IRON-AND COPPER-MEDIATED

Polyphenol compounds are widely recognized for their antioxidant activity; however, under some conditions these compounds can also exhibit prooxidant activity. This work examined the interactions of polyphenols with iron and copper to improve understanding of both their antioxidant and prooxidant effects. Polyphenols with catechol and gallol groups effectively inhibit iron-mediated oxidative

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antioxidant and prooxidant activities of phenolic compounds

Antioxidant and prooxidant activities of phenolic compounds

(EPR) techniques and to determine prooxidant and antioxidant effects of extracts on human colon carcinoma cell line (SW 480). Determination of polyphenols . Determination of to tal polyphenols of the overground parts of the tested plant species was carried out by spectrophotometric method according to the method by Schneider (Schneider, 1976).

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