ardisia elliptica/leukemia

Eleven new triterpenoid saponins, ardisianosides A (1), B (2), C (4), D (5), E (6), F (7), G (15), H (16), I (17), J (18), and K (19), together with 10 known saponins, were isolated from the whole plants of Ardisia japonica. The structures of the new saponins were established on the basis of

BACKGROUND Medicinal plants are continuously screened for their pharmacological properties. Despite the diversity and the numerous phytochemicals found in Ardisia (Myrsinaceae) species, its full biological potential has not been fully explored. OBJECTIVE Four naturally occurring alkylbenzoquinone

BACKGROUND Multidrug resistance of cancer cells constitutes a serious problem in chemotherapy and a challenging issue in the discovery of new cytotoxic drugs. Many saponins are known to display anti-cancer effects. In this study, the cytotoxicity and the modes of action of a naturally occuring

One hundred and fifty-five extracts from 93 terrestrial species of plants in Peninsula Malaysia were screened for in vitro photo-cytotoxic activity by means of a cell viability test using a human leukaemia cell-line HL60. These plants which can be classified into 43 plant families are diverse in