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'In their article, Chang-Mo Kang of the Korea Institute of Radiological and Medical Sciences in Taegu and colleagues describe their use of an assay for radiation-induced programmed cell death (apoptosis) to evaluate the protective effect of ginkgo extract against radiation exposure that occurs during accidents or occupational overexposure. In one experiment, white blood cells from human donors aged 18 to 50 were treated with one of four concentrations of ginkgo extract or a 9 percent saline solution before being exposed to gamma rays.
The researchers found a significant dose-dependent reduction in apoptotic cells among those treated with ginkgo. While radiation-induced apoptosis occurred in nearly one third of irradiated cells not treated with ginkgo, the number declined to 5 percent or less in cells treated with the herb.'
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