Retinoic acid can induce mouse embryonic stem cell R1/E to differentiate toward female germ cells while oleanolic acid can induce R1/E to differentiate toward both types of germ cells
1. The Second Affiliated Medical College and Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, P. R. China;2. Guizhou Rape Institute, Guiyang, Guizhou, P. R. China