Robert Schwartz of the University of Houston has devised a method for reprogramming human skin cells into early-stage heart cells. These cells can then be implanted and grown into fully-developed beating heart cells, reversing damage caused by heart attacks. Schwartz's method differs from those of other stem cell researchers in that it requires fewer steps and yields more cells. First, the cells are treated with a virus and are transformed into induced pluripotent stem cells.

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