,203 A recent study revealed that Rg1 repressed the proliferative ability and facilitated cell cycle arrest in CD34+/CD38−/AML− LSCs through a significant increase of CD34+/CD38− LSCs derived from human AML cells in the G0/G1 phase and their dramatic reduction in the G2/M and S phases.204. The gene discussed is CD34; the disease is acute myeloid leukemia.