The stem cells then give rise to cells that form scar tissue and to a type of support cell that is an important component of spinal cord functionality.

接着干细胞产生形成瘢痕组织的细胞和一种脊髓功能重要成分的支持细胞。

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If you care about it, why don't you support stem cell research?

CNN: Biden's comments on special needs kids called 'new low'

Polls show Americans who consider themselves conservatives are split right down the middle on whether they support stem cell research, and some pro-choice Americans actually oppose embryonic stem cell research.

CNN: Politics, science, morality of stem cell issue

Palin, an evangelical Christian, opposes embryonic stem cell research because it involves the use of human embryos, but her running mate, GOP presidential nominee McCain, does support stem cell research involving embryos.

CNN: Biden's comments on special needs kids called 'new low'