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Sodium beta-artelinate--a new potential gametocytocide
R Tripathi1, S K Puri, G P Dutta
1Division of Microbiology, Central Drug Research Institute, Lucknow, India.
Experimental Parasitology
|April 1, 1996
Summary
Sodium beta-artelinate effectively eliminates malaria gametocytes in monkeys, preventing mosquito transmission. This compound shows promise as a gametocytocide, though it lacks sporontocidal activity.
Area of Science:
- * Parasitology
- * Tropical Medicine
- * Drug Discovery
Background:
- * Artemisinin derivatives are crucial antimalarials.
- * Gametocytocidal drugs are needed to block malaria transmission.
- * Sodium beta-artelinate is a water-soluble artemisinin derivative.
Purpose of the Study:
- * To evaluate the gametocytocidal efficacy of sodium beta-artelinate.
- * To assess its impact on malaria parasite transmission to mosquitoes.
Main Methods:
- * In vivo testing of sodium beta-artelinate in rhesus monkeys infected with Plasmodium cynomolgi B.
- * Assessment of gametocyte clearance and sterilization.
- * Evaluation of mosquito infectivity and oocyst development in Anopheles stephensi.
Main Results:
- * A single dose of sodium beta-artelinate demonstrated effective gametocytocidal action via oral and intravenous administration.
- * The compound sterilized circulating gametocytes in rhesus monkeys.
- * Mosquito infectivity and oocyst development were significantly reduced, indicating a blockage of transmission.
Conclusions:
- * Sodium beta-artelinate is a potent gametocytocide with potential to interrupt malaria transmission.
- * The compound effectively sterilizes Plasmodium cynomolgi B gametocytes, preventing onward transmission.
- * No sporontocidal activity was observed, suggesting its primary role is in blocking transmission, not preventing oocyst development.