Abstract
The in vitro antimalarial activity against human malaria parasite (Plasmodium falciparum, FCR-3 strain) was examined using 59 triterpenoids obtained during studies on the triterpenic constituents of Cimicifuga spp. The 50% effective concentration values (EC50) of 25 active triterpenoids were 1.0-3.0 μM, and 19 of the compounds had a common 16, 23 : 23, 26 : 24, 25-triepoxy group in the side-chain moieties. Among the active triterpenoids, 9 also showed significant inhibition of nucleoside transport in mouse splenocytes. A relationship between the antimalarial activity and the inhibition of nucleoside transport involving these triterpenoids is discussed.
Original language | English |
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Pages (from-to) | 823-828 |
Number of pages | 6 |
Journal | Biological and Pharmaceutical Bulletin |
Volume | 21 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1998 |
Keywords
- 9,19-cyclolanostane glycoside
- Antimalarial activity
- Cimicifuga
- Nucleoside transport inhibition
- Ranunculaceae
- Thymidine-H uptake
ASJC Scopus subject areas
- Pharmacology
- Pharmaceutical Science