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Melatonin: Quantum-chemical and biochemical investigation of antioxidant activity.

机译:褪黑素:抗氧化活性的量子化学和生化研究。

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摘要

Experimental and theoretical investigation of the antioxidant activity of melatonin is carried out. The theoretical approach comprises the evaluation of several appropriate descriptors of scavenging activity with the help of quantum-chemistry methods. The values obtained are compared with available data for substances with established antioxidant properties. One of the most widely used markers for in vivo free radical oxidation processes is malondialdehyde (MDA) as an end product of membrane lipid peroxidation. Experimental support of the computed scavenging parameters is provided by estimation of the effect of supplementary melatonin therapy on the plasma levels of MDA in CRF patients on maintenance HD therapy. Different reaction paths have been considered and related to the obtained data, allowing speculations about the reaction mechanism and the antioxidant potential of melatonin for practical purposes.
机译:对褪黑激素的抗氧化活性进行了实验和理论研究。理论方法包括借助量子化学方法评估清除活性的几个合适的描述符。将获得的值与具有确定的抗氧化剂特性的物质的可用数据进行比较。体内自由基氧化过程中使用最广泛的标记之一是丙二醛(MDA),它是膜脂质过氧化作用的最终产物。通过评估补充褪黑素治疗对维持性HD治疗中CRF患者血浆MDA水平的影响,为计算的清除参数提供了实验支持。已经考虑了不同的反应路径并将其与所获得的数据相关,从而可以推测褪黑激素的反应机理和抗氧化电位。

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