这是在神经胚形成期，皮肤外胚层从神经外胚层分离不完全所致。
It is the result of incomplete disjunction of the cutaneous ectoderm from neural ectoderm during the process of neurulation.
结果表明，这段期间预定肌节在离体培养条件下分化程度有明显差异，直到神经胚中期几乎所有组织块都分化为肌细胞。
It was found that differentiation of muscle cells from these stages showed evident differences, only till mid-neurula stage all of the explants developed into well differentiated muscle cells.
为研究低氧诱导因子- 1 (HIF - 1)在小鼠胚胎神经胚形成阶段的时空表达规律，探讨HIF - 1在胚胎神经系统发生和发育过程中的作用。
To investigate the spatiotemporal expression of hypoxia-inducible factor-1 (HIF-1) during murine neurulation and explore the role of HIF-1 in the embryonic development of the nervous system.
研究者们利用小鼠晶胚来培育脑组织，并且设定了一种环境，在此环境下，脑组织会逐渐流失左旋多巴胺神经细胞，这与帕金逊症的症状非常相似。
Using tissue from mouse embryos, researchers prepared brain cultures using conditions that favor the slowly progressing loss of dopamine neurons, a hallmark of the disease.
牙齿是典型的上皮-间充质器官，由原口腔上皮和其下方的神经嵴来源的外胚间充质相互作用而形成。
Tooth is a typical epithelium-mesenchyme organ, which is formed through the mutual function between the original oral epithelium and epiblastic mesenchyme from the neural crest below.
方法用电极刺激方法在鸡胚发育早期破坏心脏神经嵴，建立圆锥动脉干缺损模型。
Methods Experimental chick embryos were subjected to cardiac neural crest ablation using electric stimulation.
研究者们在神经板形成前，从“阶段3”的鸡胚种移植了一些细胞，种植在非诱导性培养物中。
The researchers grew grafts of cells from "stage 3" chick embryos, before the neural plate formed, in non-inducing cultures.
结果胚鼠室管膜源性神经干细胞在相应培养条件下呈现出神经干细胞快速增殖，形成由多细胞组成的细胞球（神经球）；
Results The NSCs derived from the fetal rat ependyma were observed to rapidly proliferate to form some cellular spheres or neural spheres consisting of NSCs.
目的从大胚龄人胚脑中分离培养并鉴定神经干细胞。
Objective To isolate and culture human neural stem cells from elder embryonic brain.
从鸡胚内提取具有神经营养生物活性的组分。
To extract neurotrophic active substance from chicken embryo and study their bioactivity.
目的探讨人胚神经干细胞体外培养的条件和分化情况，以摸索出一种切实可行的能获得较纯且多潜能人胚神经干细胞的方法。
Objective to study the cultivation condition in vitro and differentiation of neural stem cells from the embryonic human in order to find a way to get purified multipotential neural stem cells.
结果备用根大鼠脊髓组织提取液能够促进体外培养的鸡胚背根节（DRG）神经突起的生长；
Results The extract of spinal cord tissue of spared root rat could enhance the neurite growth of chick embryonal dorsal root ganglion(DRG) in vitro.
用鸡胚骨骼肌提取液，诱导神经干细胞向胆碱能神经元方向分化。
Embryonic chick skeletal muscle extract was used to induce the differentiation of the neural stem cells into cholinergic neurons.
在加有鸡胚骨骼肌提取液的培养基诱导下，能向胆碱能神经元方向分化。
These neural stem cells could be induced to differentiate into cholinergic neurons by using embryonic chick skeletal muscle extract.
运用电子显微镜观察分析原代分离培养鼠胚脊髓的固有神经元的突触构筑。
An electron microscopic analysis of the synaptic architecture in propriospinal neurons of cultured fetal mouse spinal cord has been undertaken.
结果畸胎瘤和胸腺瘤位于前纵隔，神经源性肿瘤和内胚窦瘤发生于后纵隔。
Results Thymomas and teratomas tended to be located in the anterior mediastinum, whereas neurogenic tumours and EDST predisposed to the posterior mediastinum.
用鸡胚背根培养法证明其具有刺激神经生长的作用。
Using chicken embryo dorsal root ganglia assay, the biological activity of NGF was determined.
目的观察表没食子儿茶酚没食子酸酯(EGCG)对体外培养的胚鼠皮层神经细胞生长的影响。
Objective To investigate the effects of epigallocatechin gallate (EGCG), an abstract from Chinese medical herbs, green tea polyphenol, on the growth of mice cortical neurons in vitro.
经鸡胚背根神经节(DRG)培养法测定具有生物学活性。
The bioactivity was tested by dorsal root ganglia (DRG) of chicken embryo culture.
目的探讨视黄酸受体基因在人胚肾上腺和神经母细胞瘤中表达的意义。
Purpose To explore the relationship between retinoic acid receptors and development of human embryonal adrenal and tumorigenesis of neuroblastoma.
方法：从自然流产的孕9～15周的人胚脑组织中分离、培养神经干细胞。
Methods: HNSCs were separated from brains of 9-15-week human embryo, cultured and induced to differentiate.
方法将鼠胚皮质神经元细胞种在PLGA生物膜支架上，用自制的神经轴突延长装置对其延长。
Methods the rat embryo cortical neuronal cells were cultured after they were seeded on PLGA membrane scaffolds, and elongated with the self-made neuro-axon extending device.
目的探索一套稳定可靠的鸡胚背根神经节测定NGF活性的实验条件。
Objective To exploit stable and reliable conditions for NGF bioassay usi ng dorsal root ganglia of chick embryo.
目的研究神经生长因子(NGF)和神经生长抑制因子(NGI)对鸡胚背根神经节(drg)轴突生长的影响。
Objective to evaluate the effect of neuron growth factors (NGF) and neuron growth inhibitors (NGI) on the growth of chick embryonic dorsal root ganglion (DRG) axon.
目的：探讨银杏内酯对体外培养的鼠胚基底前脑神经元凋亡的影响。
Objective: to investigate the effects of Ginkgolide on the apoptosis of cultured neurons in the rat embryonic basal forebrain.
为了探讨人胚神经干细胞体外培养条件和分化情况，摸索出一种切实可行的获得较纯、多潜能人胚神经干细胞的方法。
This is a study on the cultivation condition in vitro and differentiation of neural stem cells from human embryonic brain in order to find a way to get purified multipotential neural stem cells.
结果鼠胚的神经元和神经轴突束可以在PLGA生物膜上延长和继续培养。
Results the rat embryo neuron axon could be elongated and cultured on the PLGA membrane.
结果鼠胚的神经元和神经轴突束可以在PLGA生物膜上延长和继续培养。
Results the rat embryo neuron axon could be elongated and cultured on the PLGA membrane.
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