当前的方法使用病毒或者化学物质向细胞中引入外来dna，但是这些操作将带来永久性的改变，会引起其特有的并发症。
Current methods use viruses or chemicals to bring foreign DNA inside cells, but these make permanent changes, which could have their own complications.
目的：探讨硝普钠(SNP)对脊髓源性神经干细胞增殖的抑制作用及诱导其向神经细胞分化的可能性。
AIM: to investigate effects of sodium nitroprusside (SNP) on the proliferation and the differentiation of spinal neural stem cells into neural cells in vitro.
试验结果提示：这几种中药复方提取物对仔猪腹泻的防治作用与促进水、钠向肠上皮细胞转运，抑制肠道炎性渗出及抑制小肠运动有关。
These roles of the Chinese herb extracts on the tested animals might be related to the transport of water and sodium ion from intestinal cavity to the epithelial cells of intestinal mucosa.
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