查询词典 embryonic development

Embryonic germ cell lines were isolated and cloned from gonad,gonadal ridge,analogue or the surrounding tissues of 9.5～13.5 days postcoitum mouse fetuses.Primordial germ cells were co-cultured with mouse embryonic fibroblasts obtained from the same conceptus.

自交配后9.5～13.5 d小鼠胎儿生殖嵴/腺或其类似物及周围组织，采用与其同源胎儿成纤维细胞共培养的方式分离克隆到具小鼠ES细胞诸多特征的胚胎生殖细胞系。

Morphologically, embryonic stem cells developed from unicells into compact three-embryonic layer embryoid body and into incompact cell population.

胚胎干细胞在形态学上由单细胞发育为致密的包含3胚层结构的拟胚体，再继续分化为松散的细胞群落。

The embryonic vessels failed to invade into the labyrinthine layer of placenta, which impaired the embryonic-maternal vascular connection. These defects could not be rescued by wild-type tetraploid blastocysts, excluding the possibility that they were due to the extraembryonic tissues.

组织免疫组化分析结果显示：毛细血管腔异常扩张，排列紊乱，不能形成大血管及细致有序的血管网络；胚外中胚层来源的卵黄囊脏层扁平上皮细胞形态变圆，与内皮细胞连接受损；胚胎血管不能侵入胎盘迷路层，胚体与母体血管连接受损。

Here, we report that SSEA-4, an early embryonic glycolipid antigen commonly used as a marker for undifferentiated pluripotent human embryonic stem cells and cleaage to blastocyst stage embryos, also identifies the adult mesenchymal stem cell population.

SSEA是在未分化的人胚胎干细胞表面早期表达，在胚泡期被剪切的一种糖脂类抗原，作者发现，SSEA也可以用来鉴定间充质干细胞。

To investigate the method of RNA isolation from human embryonic tissues and the factors influencing the quality of RNA, the RNA from human embryonic tissues obtained with drug-induced labor or non-drug induced labor were isolated by using grind with liquid nitrogen or homogenizer without liquid nitrogen.

为探讨人类胚胎组织完整RNA的分离方法及其影响因素，采用液氮研磨及匀浆器两种制备组织匀浆方法，对不同引产方式的人类胚胎组织进行总RNA分离，并对RNA质量进行鉴定。

After two hours of the mice leaveing warming boxes, 5 mice randomly selected from each group per timesection were executed by cervical vertebra luxation. The HSP70 of embryonic brain, protein content and deformations of embryonic nervous systems were quantitatively analyzed with the Western dot blot and Lowry method.

移出温箱2h后，每组每时段随机取5只脱颈法处死，采用Western dot blot 和lowry方法定量分析胚胎脑HSP70和蛋白质含量与胚胎神经系统畸形。

With Mab 2A3, the first positive cells were detected at the limb bud stage of the embryos. Distinguishable positive haemocytes with a diameter of about 7μm appeared in embryonic-nauplius. At the following nauplius I stage, configuration of haemocytes became more integrated and clear. Their diameters were almost similar to those of haemocytes from adult shrimp. With Mab 1H11, the first positive granular haemocytes were identified at the stage of embryonic-nauplius which existed in clusters with positive punctate fluorescence of granules distributed around the periphery of granular haemocytes.

通过对包括囊胚期、原肠胚期、肢芽期、膜内无节幼体期和无节幼体Ⅰ期在内的中国对虾胚胎的间接免疫荧光检测，最早在肢芽期胚胎中检测到2A3阳性信号；在膜内无节幼体期，2A3阳性血细胞平均直径约7μm，聚集成簇；在无节幼体Ⅰ期，血细胞形态更加完整清晰，平均直径已与成体对虾血细胞相似。1H11阳性大颗粒细胞最早在膜内无节幼体期胚胎中出现，这些细胞同样成簇存在，在其细胞质外围可见点状荧光。

METHODS: Cerebral cortex cells of 8-week aborted human fetus were harvested and cultured in vitro to obtain human embryonic NSCs. Cerebral hemorrhage rat models were established via injection of autologous arterial blood in caudate nucleus. Two days after modeling, 5 μL BrdU-labeled human embryonic NSCs suspension was transplanted at four points surrounding hematoma cavity in the rats.

通过注射自体动脉血到尾状核制作大鼠脑出血模型，出血后2 d将标有5'-溴脱氧尿嘧啶的人胚神经干细胞悬液移植到血肿腔周围的4 点，1，2周后处死大鼠，相邻脑组织切片行5'-溴脱氧尿嘧啶／微管相关蛋白2和5'-溴脱氧尿嘧啶／胶质纤维酸性蛋白免疫组织化学双染。

RA is known to induce neural tissue-type differentiation in various preparations including embryonic carcinoma cell lines and embryonic stem cells.

研究发现，作为神经系统发育的重要营养因子，RA可以调节神经细胞上神经营养因子受体的表达，并且与NSCs的分化调控有关。

Embryonic stem cell lines isolated from primitive embryonic cells are highly undifferentiated and totipotent cells.

胚胎干细胞(embryonic stem cell，ES cell)系是从早期胚胎细胞分离培养而建立的高度未分化的具有全能性的细胞系。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。