Estrés oxidativo y antioxidantes: cómo mantener el equilibrio

  • Sara María Lozada
  • Lucy García
Palabras clave: antioxidantes, estrés oxidativo, oxidación, enzimas


El estrés oxidativo originado por altas concentraciones de radicales libres y especies reactivas, derivadas de radicales o no, se considera causa de daño a los organismos vivos y a sus constituyentes celulares, de cáncer, de infecciones, de envejecimiento y de enfermedades inflamatorias y degenerativas, entre otras. 

Sin embargo, algunos de ellos, como el óxido nítrico, son necesarios e importantes para los procesos de señalización y otras funciones fisiológicas, como por ejemplo, el mantenimiento del tono vascular y la tensión de oxígeno, y para la producción de eritropoyetina.
Los tratamientos e investigaciones se enfocan cada vez más hacia cómo mantener el equilibrio o restablecer la homeostasis de óxido- reducción, para tratar los procesos patológicos y favorecer los fisiológicos.

Biografía del autor/a

Sara María Lozada

Servicio de Dermatología, Universidad del Valle, Cali, Colombia

Lucy García

Facultad de Ciencias Básicas Médicas, Universidad del Valle, Cali, Colombia


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Cómo citar
Lozada SM, García L. Estrés oxidativo y antioxidantes: cómo mantener el equilibrio. rev. asoc. colomb. dermatol. cir. dematol. [Internet]. 13 de febrero de 2019 [citado 30 de junio de 2022];17(3):172-9. Disponible en:


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