## 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
✦ LIBER ✦
Cancer Chemopreventive Activity of Serratane-Type Triterpenoids from Picea jezoensis
✍ Scribed by Reiko Tanaka; Toshifumi Minami; Yohei Ishikawa; Harukuni Tokuda; Shunyo Matsunaga
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 113 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1612-1872
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## Abstract In a search for cancer chemopreventive agents from natural sources, four lupane‐type and seven oleanane‐type triterpenoids, and ten synthetic analogs were screened as potential anti‐tumor promoters by using the __in vitro__ short‐term 12‐__O__‐tetradecanoylphorbol‐13‐acetate (TPA)‐induc