1st functional pacemaker cells from human stem cells develop
Their findings, "Sinoatrial node cardiomyocytes derived from human pluripotent cells function as a biological pacemaker," published online in Nature Biotechnology on Dec. 12, detail how human pluripotent stem cells can be coaxed in 21 days to develop into pacemaker cells, which regulate heart beats with electrical impulses. These human pacemaker cells were tested in rat hearts and were shown to function as a biological pacemaker, by activating the electrical impulses that trigger the contraction of the heart.

Pluripotent stem cells have the potential to differentiate into more than 200 different cell types that make up every tissue and organ in the body....