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
复制
发表时间:
1988
期刊:
Basic life sciences
影响因子:
--
通讯作者:
Ronald S. Pardini
Ronald S. Pardini
中科院分区:
--
文献类型:
--
作者:
W. F. Hodnick;Balaraman Kalyanaraman;C. Pritsos;Ronald S. Pardini

文献摘要

参考文献

被引文献

相似文献

儿茶酚和其他多酚类化合物已被证明会自动氧化并产生活性氧。这些化合物的一些例子包括肾上腺素,6-羟基多巴胺,2和邻苯三酚。3我们以前曾报道过,一类多酚类化合物的成员,黄酮类化合物(图1),以类似的方式表现。特别是四种黄酮类化合物,杨梅素(3,5,7,3 ',4',5 '-六羟基黄酮)、槲皮苷(3,5,6,7,3',4 '-六羟基黄酮)、氯化飞燕草素(3,5,7,3',4 ',5'-六羟基氯化黄酮)和槲皮素3,5,7,3 '4'-五羟基-黄酮)在分离的牛心脏线粒体制备物中诱导氰化物不敏感的呼吸。此外,这些化合物在pH 7.5的水溶液中自氧化,如通过测量氧消耗和氧依赖性光谱变化所确定的。研究表明,呼吸爆发和自氧化都会产生超氧化物(O2)和过氧化氢(H2 O2)。
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
肾上腺素及其类似物氧化过程中产生的半醌的电子自旋共振-自旋稳定性。
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