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Forget The Antioxidants? Researchers Cast Doubt On Role Of Free Radicals In Aging


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Geplaatst op 19 februari 2009 - 02:16

For more than 40 years, the prevailing explanation of why we get old has been tied to what is called oxidative stress. This theory postulates that when molecules like free radicals, oxygen ions and peroxides build up in cells, they overwhelm the cells' ability to repair the damage they cause, and the cells age. Now researchers are calling the entire oxidative stress theory into question. Some organisms live longer when their ability to rid themselves of free radicals is partially disabled.

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Veranderd door Klintersaas, 19 februari 2009 - 17:14

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