Objective to explore the optimal condition of direct differentiation into dopaminergic neurons of embryonic stem cells in serum-free and feeder layer cell free medium.

目的寻求无血清、无饲养层细胞存在的情况下，胚胎干细胞向多巴胺能神经元定向诱导分化的最佳条件。

youdao

Objective: To establish feeder layer culture system of ICR mouse embryonic fibroblast (MEF) cells for isolation and culturing of embryonic stem (es) cells.

目的：建立ICR小鼠胚胎成纤维细胞饲养层培养体系，用于胚胎干细胞建系及研究。

youdao

Objective To establish the culture system of human embryonic stem-like cells feed layer.

目的建立人胚胎干细胞饲养层培养体系。

youdao

The way we did this was to coax embryonic stem cells first to develop into the surface layer.

我们是这么做的,先诱导胚胎干细胞,发育成外胚层。

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They face the drastic prospect of having to discard plans set out in the constitution for a new, more formal European layer of government, including an embryonic EU diplomatic service and more EU-level powers over key areas like immigration.

BBC: Mundo | Aprenda ingl��s | Voto holand��s sobre la UE

Tooth enamel begins to form in the human embryo when a specialised layer of cells, called ameloblasts, in the embryonic tooth bud secretes amelogenin proteins.

BBC: By BBC News Online Science Editor Dr David Whitehouse