Oxygen: High Enzymatic Reactivity of Reactive Oxygen Species

Antioxidant Defense Systems

Author(s): Carmen Cecilia Espíndola Díaz * .

Pp: 94-143 (50)

Doi: 10.2174/9789815036633121010005

* (Excluding Mailing and Handling)


The enzymatic and non-enzymatic reaction mechanisms of primary and secondary defense systems developed by cells to diminish the effects caused by overproduction of reactive oxygen species-ROS as a metabolic response to the damaging effects from endogenous and environmental factors are presented here. Enzymatic reaction mechanisms developed by plants as an antioxidant defense system are also presented.

Keywords: Antioxidants, Catalase, Coenzyme Q-CoQ, Cu-ZnSOD, Glutathione, HNE, Plant antioxidant defense, Superoxide dismutase-SOD, Trapping free radicals, UCPs, Vitamin C, Vitamin E.

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