电子激发的分子在黑色素的形成和降解。

Physiological chemistry and physics Pub Date : 1982-01-01
D Slawinska, J Slawinski
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引用次数: 0

摘要

研究了与黑色素形成和降解有关的体外模型反应的发光(化学发光,CL)。根据化学发光动力学和光谱、吸收和荧光变化以及半经验计算表明,化学激发的共同出能步骤是吲哚醌六元环的氧化开环。数据表明细胞毒性物质的形成,如H2O2 O2-和1O2以及能量转移到强荧光剂。从“无光光生物化学”的角度讨论了黑色素生物合成和降解过程中激发分子产生的生理意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electronically excited molecules in the formation and degradation of melanins.

Light emission (chemiluminescence, CL) from model reactions in vitro, relevant to the formation and degradation of melanins has been investigated. On the basis of chemiluminescence kinetics and spectra, absorption and fluorescence changes and semi-empirical calculations, it has been shown that the common exergonic step of the chemiexcitation is the oxidative opening of the six-membered ring of indoloquinone. The data indicating cytotoxic agents formation such as H2O2 O2- and 1O2 as well as the energy transfer to strong fluorescers are presented. Physiological implications of the generation of excited molecules during the biosynthesis and degradation of melanins are discussed in terms of "photobiochemistry without light."

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