查询词典 embryonic development

The samples were smeared on slides and stained with Giemsas stain. The stained smears were observed microscopically and photographed. It showed that except typical trophozoites in binary fission. the following trophozoites of abnormal morphs were also observed. for instance abnormal trophozoites with binary fission; enlarged trophozoites with round and irregular shaped eosinophilic bodies in the cell plasma; enlarged cells containing round and irregular shaped eosinophilic bodies and flagella; enlarged cells which contain 6 or 8 nuclear-like bodies and flagella, 3 or 4 embryonic forms of daughter trophozoite in one mother trophozoite; 4 trophozoite embryonic forms with fused plasma 3 trophozoites with fused plasma;4 trophozoites with fused plasma; a pair of trophozoite with binary fission fused with another trophozoite;2 pairs of trophozoite with binary fission fused each other; a trophozoite with 1 nuclear only.

结果 除观察到典型的营二分裂法繁殖的贾第虫滋养体外，还可见到多种形态异常的虫体，包括；虫体呈非典型二分裂；滋养体胀大，胞质中有团块状和不规则形状的嗜酸性物质；在胀大的贾第虫细胞内含有团块状和不规则形状的嗜酸性物质以及鞭毛；在胀大的贾第虫细胞内含有6或8个核状物以及鞭毛；在一个母体细胞中含有3或4个子体细胞的雏形；胞质互相融合的4个滋养体的雏形；胞质互相触合的3个滋养体，胞质互相融合的4个滋养体；1对营二分裂的滋养体与另一个滋养休互相融合；2对营二分裂的滋养体互相融合；仅有1个细胞核的滋养体。

Objective: Identify the human embryonic germ cells by observing the expression of its specific surface markers SSEA-1、SSEA-3. Methods: Human embryonic genital ridges, dorsal mesenteries(5-9 weeks post-fertilization) were cultured without any cytokines, while the fibroblasts derived from the isogenous embryo were used as the feeder layer.

目的：组织块培养法培养人胚胎生殖干细胞，通过检测细胞所表达的阶段特异性胚胎抗原1 和3(stage-specific embryonic antigen-1、3 ，SSEA-1、SSEA-3)，对未分化的人EG 细胞进行特异性的生物学鉴定。

Human embryonic stem cells can differentiate into neuroepithelial progenitor cells in both feeder containing and feeder free systems,yet feeder free system has a relatively lower inductive efficiency with part of undifferentiated embryonic stem cells.

人胚胎干细胞在有饲养层和无饲养层体系中均可诱导分化形成神经上皮祖细胞，但无饲养层体系的效率相对较低，且有未分化胚胎干细胞残余。

The reprogarmming of embryonic genome is likely the molecular foundation of the transition of highly differentiated oocytes into totipotential embryonic blastomeres.

基因表达的&再程序化&可能是高度分化的卵母细胞转变成胚胎中具发育全能性分裂球的分子基础。

The expression of AT1 and AT2 receptor was examined in ureteric bud cell of the embryonic mouse, including embryonic days 12, 14, 15, 16 by immunohistochemical technique.

采用免疫组织化学方法检测胚龄12，14，15，16 d小鼠肾脏发育早期输尿管芽分支中血管紧张素Ⅱ受体1和受体2的含量。

MethodsHuman embryonic lens epithelial cells were cultured by the explanting culture methods. An inverted phase contrast microscope, electron microscope and immunocytochemistry were used to study the growth specialties of the human embryonic lens epithelial cells.

方法组织块贴壁法培养人胚晶状体上皮细胞，通过倒置相差显微镜、透射电子显微镜，采用免疫细胞化学法分析人胚晶状体上皮细胞的生长特性。

To isolate, cultivate and identify the human embryonic fibroblasts derived from the gonadal ridges and dorsal mesenteries of human embryos, and to detect the expression by hEFs of cytokines crucial for the growth of human embryonic germ cells in vitro.

目的：从人胚胎生殖腺嵴和肠背系膜中分离、培养及鉴定人胚胎成纤维细胞，检测hEFs表达人胚胎生殖细胞体外生长所需的重要细胞因子。

Methods Primary human embryonic germ cells were obtained by tissue culturing of embryonic genital ridges and mesenteries from the embryos aged 8 weeks, and then were passaged on the 8th and 16th day using pick-up and digestive passage method. Three kinds of digestive juice were used.

取8周人胚胎的生殖腺嵴和肠背系膜，进行组织块体外培养人胚胎生殖细胞，选择原代培养第8天和第16天的细胞，采用挑取传代法和消化传代法，其中的消化传代法采用三种不同的消化液进行传代培养，记录各代培养的细胞集落数。

The argues about ethical aspects aroused by embryonic stem cells seem to be claming down, a new argue about embryonic stem cell-derived ga metes and its ethical impact comes out.

胚胎干细胞在伦理学界引发的争论尚未平息，胚胎干细胞源性配子的诞生又在更深层次对伦理学产生了新的冲击。

Methods: To use ECM Gel as a tissue culture substrate, 3-dimention co-culture of the choroids plexus or the Neuro-2A cells with the ventral part of the embryonic spinal motor column (Embryonic 12 days, E12) were made in the substrate.

采用ECM Gel作为组织培养的基质底物，将脉络丛组织或者Neuro-2A细胞株和胚胎12天的腹侧脊髓运动神经柱进行三维共培养，观察脉络丛组织或者Neuro-2A细胞株对胚胎脊髓运动神经元轴突生长的影响。

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。