For blood stem cells, the force is strong

Blood flow, nitric oxide boost production of stem cells

Blood stem cells grow with the flow, two new studies show.

The studies, led by independent groups at Children’s Hospital Boston, report that an embryo’s heartbeat and blood circulation stimulate the growth of blood stem cells.

The discovery could be a boon to researchers seeking to make blood stem cells for people with blood cancers, immune system disorders and other diseases that require bone marrow transplants.