The reactive species play an important
role in cell metabolism, phagocytosis and
intercellular signaling (Ottolenghi, 1959).
However, these reactive species produced by
sunlight, ultraviolet rays, ionizing radiation,
chemical reactions and metabolic processes
have a wide variety of pathological effects
such as DNA damage, carcinogenesis and
various diseases such as cardiovascular
diseases, aging and neuro-degenerative
diseases