Background: Diabetes mellitus is a major endocrine disorder and growing health problem in most countries. Diabetes manifested by experimental animal models exhibit high oxidative stress due to persistent and chronic hyperglycemia which increases the generation of free radicals, Streptozotocin (STZ) provides an animal model of type 1 diabetes. Thereby depleting the activities of antioxidative defense systems with alteration of antioxidant activities of enzymes such as green tea and curcumin.

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Background and aim: Antioxidants are substances that may protect our bodies against the effects of freeradicals. Free radicals are molecules produced when our body breaks down food, or by environmental exposures like radiation. Free radicals can damage cells, our goal of this work is to study the damage resulted by chronic low doses of gamma radiation using natural antioxidant like Lycopene that found in tomato that are available to most of the people especially those that work in the field of radiation.

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