By Armen Hareyan on March 13, 2006 - 4:00pm 
for eMaxHealth
for eMaxHealthHeart Attack Healing
Stem cells derived from human heart tissue develop into multicellular, spherical structures called cardiospheres that express the normal properties of primitive heart tissue, smooth muscle and blood vessel cells, according to a study by Johns Hopkins researchers.
In a related study, cells grown in the laboratory from these cardiospheres and injected into the hearts of mice following a lab-induced heart attack migrated straight to damaged tissue and regenerated, improving the organ's ability to pump blood throughout the animal's body.
Results from both studies are presented Nov. 14 of 2005
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