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Ginkgo Biloba Prevents Cell Phone Radiation Damage in RatsResearchers in Turkey have found that ginkgo biloba can prevent the free radical damage that occurs in the brains of rats after exposure to electromagnetic radiation from cell phones.The increasing use of cell phones has led researchers to explore the consequences of exposure to low-intensity electromagnetic radiation emitted by mobile phones held next to a persons head -- at their ear and brain. Several experimental studies have suggested that reactive oxygen species—in other words, free radicals—play a role in electromagnetic radiation damage in tissues. In the current study, researchers investigated the effect of ginkgo biloba on cell-phone-induced oxidative damage in brain tissue of rats. Researchers exposed rats to 900 MHz electromagnetic radiation from cell phones for seven days for one hour per day. One group of rats was treated with ginkgo biloba prior to being exposed to the electromagnetic radiation. Another group served as untreated controls. Oxidative stress markers and pathological changes in brain tissue were examined for each group. In the group of rats that were exposed to the cell phone radiation but did not receive ginkgo, researchers noted a number of changes that indicated oxidative damage. One of these changes included a decrease in the activities of brain superoxide dismutase and glutathione peroxidase, two antioxidant enzymes that play a key role in neutralizing oxidative damage caused by free radicals. In the rats treated with ginkgo biloba, however, the researchers did not notice any of the changes associated with free radical damage. Furthermore, ginkgo biloba prevented the cell-phone-induced cellular injury in brain tissue. The researchers concluded that ginkgo can preserve antioxidant enzyme activity in brain tissue exposed to radiation from mobile phones, thereby reducing oxidative stress in brains exposed to cell phones. Reference: Ilhan A, Gurel A, Armutcu F, Kamisli S, Iraz M, Akyol O, Ozen S. Ginkgo biloba prevents mobile phone-induced oxidative stress in rat brain. Clin Chim Acta. 2004 Feb;340(1-2):153-62. |
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