The promise of stem cell research just got a lot brighter.
There was some very good news from the world of medicine just a couple of weeks ago. For the first time, stem cells were injected into the hearts of humans who had suffered serious heart damage, and patients improved dramatically. It appears that, as everyone hoped, the stem cells grew into new heart cells to replaced the damaged tissue. This is the promise of all stem cell research: to repair or replace damaged organs that otherwise would never recover. In principle, we can someday use the same technique to replace damaged livers, kidneys, spinal cords, cartilege, and virtually all other tissues in the human body.
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