查询词典 embryonic cell

Objective To explore the isolation and culture conditions of neuroepithelial stem cells from neural tube of embryonic rats and to observe their differentiation characteristics in vitro.

目的探讨大鼠胚胎神经管神经上皮干细胞的分离培养条件，并观察其在体外的分化特性。

Methods:Neuroepithelial cells were dissociated from neural tube of embryonic E12 rats and cultured in the serum of rats given BYHWD and the serum of normal controls.

取孕 12d大鼠胚胎神经管上皮细胞，分别接种在灌服补阳还五汤的鼠血清和对照鼠血清的培养基内。

Results: Neuroepithelial stem cells derived from the embryonic neural tube could expand into neurospheres in the free serum medium and express nestin.

结果： GFP转基因鼠神经管来源的神经上皮干细胞在无血清培养基内能增殖形成神经球，呈巢蛋白阳性。

Moreover, mouse homologue of human ASPM, Aspm, is highly expressed in embryonic days in the neuroepithelium at sites of active neurogenesis and decreased postnatally after the completion of neurogenesis.

此外，老鼠的ASPM同源基因Aspm，则被发现会於胎儿时期高度的表现在有旺盛神经发育的大脑神经皮质区，而在出生后由於神经发育停止而迅速减少表现。

BFGF immunoreaction was detected at 3-weeks' embryonic neuroepithelium, and remained positive throughout various development a l stages examined, whereas NGF immunoreaction appeared after 4-weeks. The expres sion varied gradually with the development of embryos. There was no specific EGF immunoreaction in all tissues and stages examined. The occurrence and distribut ion of FGFR, NGFR and EGFR were similar, and their expression altered with the development.

结果显示bFGF和NGF的表达时序不同，b FGF阳性细胞出现较早，在所检测的各个发育阶段均呈阳性表达，而NGF出现较晚，随着胚龄增加，免疫阳性着色逐渐增强，bFGF分布较NGF广泛，而EGF在所检测的各个发育阶段均呈阴性。flg、TrkA、EGFR表达时序和分布相似，三者在所检测的各个发育阶段均呈阳性。

These data give some new insights on the mechanism of TGFβ/Nodal transduction and in regulation of embryonic development.

这些数据为了解TGFβ/Nodal信号的转导调控机理和对胚胎发育的调控作用提供了新的视觉。

Over the past 28 months, the induced pluripotent stem cells iPS cells, with characteristics identical to those of embryonic stem cells (ES cells directly in vitro reprogrammed from nonembryonic cells and tissues have captured great attentions in both scientific community and general public.

日本和美国研究小组先后用4种基因将小鼠(2006年8月)和人(2007年11～12月)的体细胞在体外重编程为诱导性多潜能干细胞(induced pluripotent stem cells，iPS cells)，此后在短短两年多时间内，iPS 细胞的研究和关注度呈爆炸式增长。

Ooplasmic transfer increases the fertilizability of the aged oocytes and the early embryonic viability, it has led to the birth of health babies, and become a hotspot in the realm of human assisted reproduction biotechnology and animal clone.

卵胞质转移技术能有效改善老龄卵母细胞的受精能力和早期胚胎的发育能力，在人类已有健康后代出生，它已成为人类辅助生殖生物技术和动物克隆研究的新热点。

Objective To establish the optimum method of deriving mouse parthenogenetic embryonic stem cells.

目的 建立合适的小鼠孤雌胚胎干细胞建系方法。

Based on the pathological findings and the sequence of embryonic development, we speculated that the sequestrated extrapulmonary lung, which occurred in the development of the fetus, might have occupied the site of the pleuroperitoneal canal and hindered its complete closure, hence forming the diaphragmatic hernia.

根据病理发现及胚胎发展，我们推测也许肺叶外游离肺在胚胎发育时占据了肋腹膜间的通道且阻碍它完全的关闭，而形成横隔膜疝气。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。