In Vitro Evaluation of Pro- and Antioxidant Effects of Flavonoid Tricetin in Comparison to Myricetin.
In Vitro Evaluation of Pro- and Antioxidant Effects of Flavonoid Tricetin in Comparison to Myricetin.
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DOI:
10.3390/molecules25245850
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发表时间:
2020-12-11
期刊:
影响因子:
--
通讯作者:
Kubicova L
中科院分区:
文献类型:
--
作者:
Chobot V;Hadacek F;Bachmann G;Weckwerth W;Kubicova L
Flavonoids are rather common plant phenolic constituents that are known for potent antioxidant effects and can be beneficial for human health. Flavonoids with a pyrogallol moiety are highly efficient reducing agents with possible pro- and antioxidant effects, depending on the reaction milieu. Therefore, the redox properties of myricetin and tricetin were investigated by differential pulse voltammetry and deoxyribose degradation assay. Tricetin proved to be a good antioxidant but only showed negligible pro-oxidant activity in one of the deoxyribose degradation assay variants. Compared to tricetin, myricetin showed pro- and antioxidant effects. The more efficient reducing properties of myricetin are probably caused by the positive mesomeric effect of the enolic 3-hydroxy group on ring C. It is evident that the antioxidant properties of structurally similar flavonoids can be converted to apparent pro-oxidant effects by relatively small structural changes, such as hydroxylation. Since reactive oxygen species (ROS) often serve as secondary messengers in pathological and physiological processes in animal and plant cells, the pro- and antioxidant properties of flavonoids are an important part of controlling mechanisms of tissue signal cascades.
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影响因子:
2.7
作者:
Kell DB
通讯作者:
Kell DB
DOI:
10.3390/antiox9090797
发表时间:
2020-08-27
期刊:
Antioxidants (Basel, Switzerland)
影响因子:
--
作者:
Kanner J
通讯作者:
Kanner J
影响因子:
6.1
作者:
Chobot, Vladimir
通讯作者:
Chobot, Vladimir
影响因子:
2.8
作者:
Belcaro, Gianni;Cesarone, Maria Rosaria;Grossi, Maria Giovanna
通讯作者:
Grossi, Maria Giovanna
影响因子:
5.6
作者:
Chobot V;Hadacek F;Bachmann G;Weckwerth W;Kubicova L
通讯作者:
Kubicova L