1998 年 46 巻 3 号 p. 173-177
Chemical and ecological investigations on the bioactive constituents of Vernonia amygdalina (Compositae) were carried out as a case study of the medicinal plant-use of chimpanzee in the wild. The sesquiterpene lactones and steroid related compounds were isolated as the constituents of biological significance. Based on the in vitro activity-tests together with chimpanzee's behavioral analyses, the steroid related constituents were hypothesized to be used for his self-medication to parasite related diseases. Further medicinal plants possibly used by chimpanzee are reviewed.