Plantainoside D (Isoplantamajoside) shows potent antioxidative effects as those of ascorbic acid, it shows angiotensin-converting enzyme (ACE) inhibitory inhibitory activity in vitro with the IC(50) value of 2.17 mM, it also shows inhibitory activity against PKCalpha with the IC50 value14.8microM.
Martynoside is an active glycoside extracted from Rehmannia, with anti-estrogen, anticancer, cytotoxic, hematopoietic, antioxidant, and anti-metastatic properties. It increases IGFBP3 levels through the ER pathway.