Defensa antioxidante en el cuerpo humano: Una revisión (Teoría de los radicales libres)

Abstract

and exogenous, some of them hydrophilic, others lipophilic, some enzymatic and others non-enzymatic, intracellular and extracellular) for the protection of corporal processes and against aggressive oxidizing agents. The excessive formation of reactive oxidizing species (eg, oxygen and nitrogen species) in the body, cause damage to lipids, carbohydrates, proteins, nucleic acids and affect genes, cells, organs, tissues, organic systems and others. The article establishes the relationship between redox processes and the activity of antioxidant agents, particularly catalytic agents, and crops a review of the origin, provenance, action, activity, and recommendations for the protection as well as the defense of the human body with antioxidant agents. It is important to mention that in general and according to their constitution and properties, antioxidants show selectivity in the protection they perform, so it is advisable to maintain a varied diet of them.