Estresse oxidativo: relação entre geração de espécies reativas e defesa do organismo

Química Nova

André L. B. S. Barreiros¹  Jorge M. David¹  Juceni P. David² 

[1] ,Universidade Federal da Bahia Instituto de Química Salvador BA

关键词: oxidative stress;    antioxidants;    reactive species;   

DOI  :  10.1590/S0100-40422006000100021

来源: SciELO

【 摘 要 】

This work describes the mechanism of action of some reactive oxygen species (ROS) and reactive nitrogen species (RNS) in the oxidative stress of the human body, and their consequences on damage to DNA, RNA, proteins and lipids. It also illustrates the defense system of our organism against these ROS and RNS species. The action of nonenzymatic protection systems is reported, with emphasis on micromolecules like Q10 coenzyme, vitamin C, alpha-tocopherol, carotenoids and flavonoids. The importance of flavonoids is also emphasized, and their body protection mechanism is detailed.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License