Oxidative stress and antioxidants: how to keep the balance
Keywords:
antioxidants, oxidative stress, oxidation, enzymesAbstract
The oxidative stress originated by high concentrations of free radicals and radical-derived, non-radical reactive species, is considered cause of damage for living organisms and their cellular components, cause of cancer, infections, aging, inflammatory and degenerative diseases among others.
Nevertheless, some of them, such as nitric oxide, are necessary and important for the processes of signaling and other physiological functions, i.e., vascular tone maintenance, oxygen tension, and erythropoietin production.
Therapy and research are focused towards maintaining the balance or restoring the redox homeostasis to treat pathological processes and/or to favor physiological ones.
Author Biographies
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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