Volume : III, Issue : VIII, August - 2014

Oxidative Stress and Antioxidant Defense in Cells

Supriya Tiwari

Abstract :

Oxidative stress is induced by the reactive oxygen species (ROS) produced in the cells as a result of environmental factors such as air pollutants, heavy metals etc. Reactive oxygen species are highly reactive and can damage cell structures. The main cellular components susceptible to damage by the reactive oxygen species are lipids, proteins, carbohydrates and nucleic acids. The formation of reactive oxygen species is prevented by the cellular antioxidant system which includes ROS- interacting enzymes such as Superoxide Dismutase, Catalase, Glutathione Peroxidase etc. and non- enzymatic antioxidant such as Ascorbic Acid, Tocopherol, Carotene, Glutathione etc. The antioxidants tend to maintain the redox state of the cell which is critical for the normal functioning of the cells.

Keywords :

Article: Download PDF    DOI : https://www.doi.org/10.36106/gjra  

Cite This Article:

OXIDATIVE STRESS AND ANTIOXIDANT DEFENSE IN CELLS, Supriya Tiwari GLOBAL JOURNAL FOR RESEARCH ANALYSIS : Volume-3 | Issue-8 | August-2014

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