中胚层的

LITERATURE EVALUATION: The 32 literatures are about ESCs transcription regulation, the role of FoxD3 for embryonic development and maintaining the pluripotency of ESCs and the function of FoxD3 in other cells （myeloid cells, nervous crest cells and chromatophore cells）.

FoxD3是叉头框（Forkheadbox，Fox）家族中的一个转录调控因子，它对胚胎上胚层及其衍生物的形成和建立多潜能胚胎干细胞系具有重要作用，并与控制胚胎发育和胚胎干细胞多能性的其他转录调控因子有一定的联系。

Morphorgenesis and differentiation of these organs involves sequential and complex interaction between ectoderm, mesoderm and endoderm.

这些器官的成型与分化，皆是由胚胎外、中、内三个胚层组织一连串的讯息传递以及彼此之间的交互作用所完成的。

The study is done to confirm the effective time window of Wnt3a and Activin A in endoderm induction.

研究Wnt3a和Activin A在限定性内胚层诱导中共同作用的最佳时间窗。

These epithelial elements arise embryologically from foregut endoderm in the process of bronchial tubular growth.

这些表皮细胞在胚胎学上把源于支气管生长过程中的前内脏叫内胚层。

To determine whether the same molecular mechanisms are inoled in the formation process, the expression pattern of transcription factors regulating endoderm and gut deelopment in the mouse embryo was examined by in situ hybridization and compared with in io expression.

为了证明在成形过程中是否也具有相似的分子机制，我们通过原位杂交同体内表达比对的方法来检查小鼠胚胎中调节内胚层和肠道发育的转录因子的表达模式。

Most researchers reported that neuroendocrine cell's were the results of stem cell's multi-directional differentiation, like epithelial cell, which is originated from endoderm multipotential stem cells.

多数研究认为，神经内分泌（neuroendocrine，NE）细胞和上皮细胞均来自内胚层多潜能干细胞，是肿瘤发生过程中干细胞多向分化的结果。

During male and female reproduction organ developments, CBKs were expressed obviously in temporal and spatial difference manners, especially in pollen development, tapetum cell development and degeneration and ovule development.

这种差异性突出体现在花粉细胞的发育、绒毡层细胞的发育和凋亡以及胚珠的发育等过程中。

This process, called vasculogenesis ,involves the de novo differentiation of endothelial cell from mesodermal precursor to form the primitive blood vessel network.

血管生成是指在胚胎发生和器官形成过程中，从中胚层内皮细胞中分化出新的内皮细胞以形成原始血管网的过程，仅见于胚胎发生的早期，出生后即停止。

From E12. 5 onwards, partially distinct patterns of expression of these genes are observed in the neuroepithelium, sense organs and endodermal-derived organs.

从E12.5起，这些基因显示出部分表达差异，尤其在神经上皮，感觉器官和内胚层衍生的器官中。

Chordates are bilaterally symmetrical, triploblastic, segmented coelomates which demonstrate a deuterostomic pattern of early embryonic development.

脊索动物两侧对称、三胚层，分节的体腔，在胚胎发育的早期过程中，显示为后口类型。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。