Reactive oxygen species and antioxidants have attracted immense interest of researchers because of their implied role in the protection of biological systems. Though all living organisms possess their own antioxidant defense systems. No one can disregard the importance of dietary or exogenous antioxidants in the prevention of a variety of diseases. There is, therefore, a need to discover new and effective radical scavengers from natural sources that have low or no side effects for use in preventive and/or curative medicine. Natural antioxidant molecules can be considered as precursors for synthesis of a variety of more biologically active derivatives. Several studies have revealed that antioxidant compounds play an important role in inhibition of hydrolytic and oxidative enzymes, anti-inflammatory action and various other biological or pharmacological activities in addition to free radical scavenging. The present study compiled a review on oxidants and antioxidants in complementary and alternative medicine.
Reactive oxygen species, oxidants, antioxidants, vitamin E, vitamin C, melatonin, carotenoids, polyphenols, phenolic acids, flavonoids, lignans, stilbenes, phytophenols, gallic acid, antioxidant activity, complementary and alternative medicine