Free Radicals, Oxidative Stress And Antioxidant Systems
Keywords:
dermatitis, cataracts, protectionAbstract
Free radicals and of oxygen reactive forms ( KRSh ) and nitrogen reactive forms ( ARS ) aerobic in organisms mitochondrial breath to take , enzymatic processes , immune system protection reactions and exogenous environmental stressors of the impact natural product as permanent accordingly harvest become The outer atom or molecular in orbitals one or one how many unpaired electrons existence with characterized this substances short biological half decay to the period and extreme high chemical to activity As a result , they cell vital important macromolecules , including lipids , proteins , carbohydrates and nuclein acids with dynamic accordingly mutual to the effect enters [1.2]. Physiological normative in concentrations free radicals cell signal transduction within genes expression , veins tone management and immune protection coordinator important homeostatic regulators task However , this prooxidants too much outside many working release , endogenous antioxidant systems shortage or end with together when it is over , it leads to oxidative stress take It comes . This is cancer , dermatitis , cataracts , stroke and asthma such as to diseases take comes
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