Recent technology has made it possible to transform human skin cells into stem cells under laboratory conditions and transform the stem cells into heart muscle cells. This process is only a few years old, and little is currently known about the resulting heart cells. For example, researchers do not know how much force and electrical activity the artificially-developed heart cells have when compared to regular heart cells. This makes it difficult to use the cells for research.
University of Minnesota Integrative Biology/Physiology
Matthew Wheelwright; Joseph M. Metzger