Anti-schistosomiasis triterpene glycoside from the egyptian medicinal plant Asparagus stipularis

Abstract

Bioassay-guided isolation using an in vitro assay testing for antischistosomiasis yielded a novel triterpene saponin, asparagalin A, from the n-butanol extract of the roots of Asparagus stipularis Forssk., Asparagaceae. The structure was elucidated by spectroscopic analysis and chemical transformations. Administration of asparagalin A resulted in a retardation of worm growth and locomotion at the first day and showed a significant activity of egg-laying suppression at 200 μg/mL concentration.