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NUCLEAR-TRANSFER EMBRYOS Why they are useful These embryos are created using the technique that created Dolly, the cloned sheep. Stem cells can be custom-made by inserting a patient's skin cell into a hollowed human egg. Any resulting therapies would not run the risk of immune rejection...

Author: /time Magazine | Title: Stem Cells: The Hope And The Hype | 7/30/2006 | See Source »

...they are useful Although they are primarily made up of blood stem cells, they also contain stem cells that can turn into bone, cartilage, heart muscle and brain and liver tissue. Like adult stem cells, they are harvested without the need for embryos...

Author: /time Magazine | Title: Stem Cells: The Hope And The Hype | 7/30/2006 | See Source »

Embryonic stem cells begin to form along the inside of the blastocyst, creating the inner cell mass...

Author: /time Magazine | Title: Stem Cells: The Hope And The Hype | 7/30/2006 | See Source »

...STEM LINE...

Author: /time Magazine | Title: Stem Cells: The Hope And The Hype | 7/30/2006 | See Source »

Groups of stem cells are nurtured under specialized conditions, with different recipes of nutrients and growth factors that direct the cells to become any of the body's more than 200 various tissues Pancreatic islet cells Could provide a cure for diabetes...

Author: /time Magazine | Title: Stem Cells: The Hope And The Hype | 7/30/2006 | See Source »

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