Tuesday, November 25, 2008

Scientists achieve repair of injured heart muscle in lab tests of stem cells

Source: Children's Hospital of Pittsburgh
Date: November 25, 2008

Summary:

Researchers at Children's Hospital of Pittsburgh of UPMC have been able to effectively repair damaged heart muscle in an animal model using a novel population of stem cells they discovered that is derived from human skeletal muscle tissue. The research team — led by Johnny Huard, PhD — transplanted stem cells purified from human muscle-derived blood vessels into the hearts of mice that had heart damage similar to that which would occur in people who had suffered a heart attack. The transplanted myoendothelial cells repaired the injured muscle, stimulated the growth of new blood vessels in the heart and reduced scar tissue from the injury, thereby dramatically improving the function of the injured left ventricle. Results of this study are published in the Dec. 2 issue of the Journal of the American College of Cardiology.