Stem cell advance has scientists buzzing: What does it mean?

From by Ryan Jaslow

(CBS/AP) Scientists are buzzing about a new stem cell breakthrough that they think could lead to personalized treatments for major diseases.

What’s the breakthrough? Scientists say they’ve successfully cloned a human embryo that can create customized stem cells.

For the study – published in the October 5 issue of Nature– detailed how researchers injected DNA from a volunteer’s skin cells into donor eggs. Typically in cloning, the egg’s genetic material is removed first, but when researchers tried that it didn’t work, said study lead author Dieter Egli,a senior research fellow at the New York Stem Cell Foundation. This new method only worked when the donor’s DNA was left inside the egg and the volunteer’s genetic material was added.

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