Dr. Jon LaPook Looks At Advances In Stem Cell Research
Reporter: CBS News

Diseases can now be studied outside the body – in a petrie dish. For example, researchers have taken skin from patients with ALS (Lou Gehrig’s disease), turned them into stem cells, then turned the stem cells into the kind of nerve cells (motor neurons) damaged in the disease. Now – for the first time – they can study living nerves from somebody with ALS and see how they differ from normal nerves.

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