Radioprotective Activity in Some Medicinal Herbs

Radioprotective activity was examined of extracts prepared from some Araliaceae plants and other medicinal herbs by either measuring 30-day survival rate or thrombocyte count 14 days after irradiation in mice. The extract was i.p. injected within 4 min after whole body X-irradiation. Among 12 materials examined, Aralia elata, Angelica acutiloba, and Artemisia princeps seem to be good starting materials for preparing radioprotective substance(s) because of their relatively high tentative specific activity and high yields of the extracts