New Method Monitors Early Sign Of Oxidative Stress In Cancer

The growth of cancerous tumors is fueled, at least in part, by the buildup of free radicals--highly reactive oxygen-containing molecules. It stands to reason, then, that cancer should respond to treatment with antioxidants, which inhibit the rogue radicals, or with pro-oxidants, which go the opposite direction, increasing "oxidative stress" on cancer cells to the point of vanquishing them. But experiments with such treatments have had mixed results, possibly because patients differ in their "redox profiles," or oxidative stress levels.

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