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The emergence of human embryonic stem cells as an experimental and therapeutic resource represents a major opportunity for brain repair.

人类胚胎干细胞作为一个实验性和治疗性的来源的出现是大脑修复的一个重要机会。

Advanced molecular tools used in early animal development, will contribute to a better understanding of mammalian embryonic development.

先进的分子工具应用于家畜的早期发育，将有助于进一步了解哺乳动物的胚胎发育。

DNA methylation is an important modifiable manner of epigenetic dominating the correct expression of gene. It is a main instrument of regulating genome function and plays a prominent part in the embryonic normal development.

DNA 甲基化是支配基因正常表达的一种重要的表观遗传修饰方式，是调节基因组功能的重要手段，在胚胎的正常发育过程中具有显著作用。

The kangaroo is a member of the marsupial family, meaning they bear their young at an early embryonic stage.

袋鼠是有袋目动物的一种，就是说，幼子在胚胎时期是有其母亲背着的。

Objective To investigate the effect of Desert Hedgehog on direct differentiation of neural progenitor cells cultured from embryonic mesencephalon in the rats.

目的 研究Desert Hedgehog对胚胎中脑神经前体细胞向多巴胺能神经元分化的诱导作用。

METHODS: NSCs derived from rat embryonic mesencephalon were cultured in serum-free culture medium containing epidermal growth factors and basic fibroblast growth factors.

①在含表皮生长因子及碱性成纤维细胞生长因子的无血清培养液中培养胚胎大鼠中脑神经干细胞。

All of the three cells were co-cultured with NPCs isolated from ventral mesencephalon in embryonic SD rats (E13.5) respectively.

分离培养大鼠胚胎中脑神经前体细胞，免疫荧光鉴定神经前体细胞的增殖分化特性。

Methods NSCs from rat embryonic of day 13.5 (E13.5) mesencephalon were mechanically dissociated and divided into three groups (control, 10% O2 and 3% O2) after identification.

取孕13.5d的Wistar大鼠，麻醉后取胚胎，分离中脑神经干细胞，常规培养鉴定后分3组：对照组；10% O2组；3% O2组。

Possible cell sources for replacement range from autologous grafts of dopamine secreting cells to allografts of fetal ventral mesencephalon and neural precursor cells derived from fetal tissue or embryonic stem cells.

从多巴胺分泌细胞的自体移植物到胎儿组织的同种异体移植物或胚胎干细胞都是可替代的可能细胞来源。

AbstractThe present study was to observe the effect of diethylstilbestrol on fetal rat mesencephalic NSCs in vitro, the mesencephalon of fetal mice at embryonic day 14 was collected and made into suspension.

为观察己烯雌酚对体外培养的胎鼠中脑神经干细胞增殖分化的影响，将孕14 d的SD大鼠胎鼠中脑取出，制成单细胞悬液行悬浮培养，5 d后行NSCs鉴定、传代及诱导分化实验。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。