The production of hydroxyl and semiquinone free radicals during the autoxidation of redox active flavonoids.
The production of hydroxyl and semiquinone free radicals during the autoxidation of redox active flavonoids.
复制标题
氧化还原活性黄酮类化合物自动氧化过程中羟基和半醌自由基的产生。
DOI:
10.1007/978-1-4684-5568-7_21
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发表时间:
1988
期刊:
影响因子:
--
通讯作者:
Ronald S. Pardini
中科院分区:
文献类型:
--
作者:
W. F. Hodnick;Balaraman Kalyanaraman;C. Pritsos;Ronald S. Pardini
Catechols and other polyphenolic compounds have been shown to autoxidize and generate reactive oxygen species. A few examples of such compounds include epinephrine, 6-hydroxydopamine,2 and pyrogallol.3 We have previously reported that members of a class of polyphenolics, the flavonoids (Figure 1), behave in a similar manner. In particular four flavonoids, myricetin (3,5,7,3’,4’,5’-hexahydroxyflavone), quercetagetin (3,5,6,7,3’,4’-hexahydroxyflavone), delphinidin chloride (3,5,7,3’,4’,5’-hexahydroxyflavylium chloride) and quercetin 3,5,7,3’4’-pentahydroxy-flavone) induce cyanide-insensitive respiration in isolated beef heart mitochondrial preparations. Additionally, these compounds autoxidize in aqueous solutions at pH 7.5, as determined by measuring oxygen consumption and oxygen-dependent spectral changes. It was demonstrated that both the respiratory bursts and the autoxidation result in the production of superoxide (O2‒) and hydrogen peroxide (H2O2).4
DOI:
--
发表时间:
1984
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Kalyanaraman,B;Felix,CC;Sealy,RC
通讯作者:
Sealy,RC