Cancer Chemopreventive Activity of Olean
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Chiharu Yamaguchi; Yasuko In; Shun-ichi Wada; Takeshi Yamada; Harukuni Tokuda; R
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Article
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2009
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John Wiley and Sons
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English
⚖ 247 KB
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## Abstract In search for cancer chemopreventive agents from natural sources, three oleanane‐ and four known lupane‐type triterpenoids, and sitosterol from the stem bark of __Betula ermanii__ were tested for their inhibitory effects on __Epstein__–__Barr__ virus early antigen (EBV‐EA) activation in