外胚层

Result The symptoms of congenital oligodontia were clinically classified into two groups: oligodontia with or without systemic syndromes. And the former has two typical kinds of diseases: anhidrotic/hypohidrotic ectodermal dysplasia and Rieger syndrome.

结果 多个牙先天缺失在临床有不同表现：一是合并发育缺陷综合征的先天多个牙缺失，典型病例为无汗少汗型外胚层发育不全和Rieger综合征等，二是作为独立症状出现的先天多个牙缺失。

Anhidrotic/hypohidrotic ectodermal dysplasia ; EDA gene ; fusion expression

外胚层发育不全无汗综合症； EDA基因；融合表达

I report here that maternal gene xNorrin, a homologue of Norrie Disease gene, is expressed in animal pole and enriched in dorsal blastomeres of early embryos.

爪蟾背部动物极的一部分细胞将发育成神经外胚层，而母源xNorrin mRNA正是富集在卵母细胞和早期胚胎的动物极半球。

An embryo at the stage following the blastula, consisting of a hollow, two-layered sac of ectoderm and endoderm surrounding an archenteron that communicates with the exterior through the blastopore.

原肠胚一种囊胚之后的胚胎，含有中空、两层的外胚层和内胚层，包围着通过胚孔跟外界交流的原肠

At approximately the same time, the infundibulum forms as a down growth of the neuroepithelium from the diencephalon.

覆盖以外胚层起源的上皮细胞。

Subsequently , people found that noggin plays an important role in normal development, especially of inducing dorsal development.

此后发现该基因在胚胎发育中有重要神经诱导作用，尤其是诱导外胚层的背侧发育。

Cumulative data have been documented that mesenchymal stem cells can differentiate into osteoblasts, chondrocytes, adipocytes, tenocytes, myotubes, neural-like cells, hematopoietic-supporting stroma and other non-hematopoietic cells derived from mesoblast or ectoblast.

大量研究表明，体外培养的骨髓间质干细胞在合适的诱导条件下，可分化为成骨细胞、成软骨细胞、脂肪细胞、成肌细胞、成腱细胞和神经元样细胞等多种非造血组织特别是中胚层和神经外胚层来源的组织细胞。

All of the FGFs family are the mitogen,affecting the ectoderm,entoderm and the mesenchymal cells.

全部的FGFs都是广谱的有丝分裂原，作用于外胚层、内胚层和间充质来源的细胞。

The infolding of a portion of the outer layer of a blastula in the formation of a gastrula.

外胚层囊胚的外层，在原肠胚形成之后生后外胚层组织

The tumor was removed and the pathology demonstrated highly cellular tumor with poorly differential cells and brisk miotic activity. Based on the tumor location and pathology, a supratentorial primitive neuroectodermal tumor was diagnosed.

经过外科手术切除，病理切片报告确定这是一个原始神经外胚层肿瘤(Primitive neuroectodermal tumors)，根据肿瘤位置及病理切片报告诊断为天幕上原始神经外胚层肿瘤。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。