Genzyme is itself involved in a European 300-patient phase II trial that attempts to use skeletal muscle cells from the leg to prevent heart failure.

FORBES: Small Stem Cells Find Big Backers

In humans they sit on nerve cells throughout the body--in the brain, heart and stomach and on skeletal muscle.

FORBES: Magazine Article

These cells can differentiate into many different cell lines, including cardiac, neuro, or even skeletal muscle.

CNN: Dr. Sanjay Gupta: Understanding stem cell research