stem-cell research |
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stem-cell research |
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#1
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![]() E! Online ![]() ![]() ![]() ![]() ![]() Group: Member Posts: 302 Joined: Sep 2004 Member No: 47,082 ![]() |
do you support stem-cell researching? why or why not?
should federal funding be given to these researchers? do you support embryonic or adult stem cells (or both)? |
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#2
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![]() dripping destruction ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Staff Alumni Posts: 7,282 Joined: Jun 2004 Member No: 21,929 ![]() |
the fundamental difference between adult stem cells and embryonic stem cells is this:
Adult stem cells have already specialized themselves. We currently do not know how the specialization is done. it may be a protien release, or a DNA edit. either way this specialization is done, it means the Adult stme cells are contaminated, and will always try to become what they were originally. This makes them highly unusable, because sure you have ectoderm, mezoderm, and endoderm, but it doesn't matter if all they will become is schwann cells, liver cells, and epithelium. sure, you can force them to other cell types, but they will always want to revert. therefore, Adult stem cells are only useful for tissues to which there are adult stem cells. It's not good to put neuron stem cells into someone's brain only to have them revert to adipose tissue. embronic stem cells haven't chosen which way to go. they are a blank slate, not one that has been erased. if they are forced to one cell type, they will stay that way. there is nothing it will try to revert to. Adult stem cells have a much higher probability of becoming something you don't want it to become. Adult stem cells will ignore your forcings. they've chosen what they want to be, and they'll always try to be that. |
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