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In biological system the generation of free radicals is a normal phenomenon. Sometimes these free radicals are generated in such an amount that the body's defense mechanism is not able to remove them and as a result stress is developed in the body. This process is called as the oxidative stress and may be defined as a shift in the prooxidant- antioxidant balance towards the oxidants or peroxidants. The free radicals are the chemical species which have unpaired electrons and are thus very unstable and reactive. In order to attain stability they react with their neighboring atoms to gain the...

Scientific proof against the folklore claims related to the use of medicinal plants for the treatment of oxidative-stress related abnormalities. The present work determines the antioxidant potential of crude extracts of Podophyllum hexandrum and Malva sylvestris against free radical-mediated oxidative damages. Free radical generation is a normal phenomenon in the body. Sometimes, these free radicals are generated in such amounts that body's defence mechanism is not able to remove them.