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KMID : 0620720010070020060
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Natural Product Sciences
2001 Volume.7 No. 2 p.60 ~ p.62
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Radiosensitizing and Topoisomerase I Inhibitory Effects of Aloe vera , Formitella fraxinea , and Ulmus davidiana Extracts
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Lee, Jae Hyun
Lee, Keyong Ho/Cho, Choa Hyoung/Noh, Moon Jong/Kim, Young Bum
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Abstract
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Ulmus davidiana, Formitella fraxinea, and Aloe vera extracts were detected to have inhibitory effects against topoisomerase I at treatment of Spg. Ulmus davidiana and Aloe vera extracts were found to show inhibitory effect similar to camptothecin, Formitella fraxinea extract was found to have weak activity. We also found the potential use of those extracts as a radiation sensitizer. Radiosensitizing effect at combination treatment was increased more than 2 times at single treatment of radiation, Ulmus davidiana or Formitella fraxinea extracts. Ulmus davidiana and Formitella fraxinea extracts were found to have significant radiosensitizing effect on test tumor cell line. But, Aloe vera extract was not detected to have activity as a radiosensitizer. Ulmus davidiana and Formitella fraxinea extracts are potent radiosensitizers on tumor cell lines and should be considered for further study of active compounds.
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