查询词典 stem

Spermatogonial stem cells have special behavior and features,based on these ,we can indentify the spermatogonial stem cell in vitro.

精原干细胞具有典型的生物学行为和特征，结合行为及生物学特征可对增殖的精原干细胞进行鉴定。

The research on Spermatogonial Stem Cells is evoking more and more interests of people because of the development of other stem cells and the appearance of many new research tools and experimental techniques in recent years.

近年来随着干细胞研究的不断发展，新的研究工具和实验技术不断涌现，对精原干细胞(Spermatogonial stem cell，SSC )的研究亦激起人们的浓厚兴趣。

Background and purpose: The research on Spermatogonial Stem Cells is evoking more and more interests of people because of the development of other stem cells and the appearance of many new research tools and experimental techniques in recent years.

背景与目的：随着近年来对于干细胞研究的不断深入发展和新的研究工具、实验技术的涌现，对于精原干细胞（Spermatogonial stem cell，SSC）的研究亦激起人们的浓厚兴趣。

Objective:To study the biological features of mouse spermatogonial stem cells,in order to indentify spermatogonial stem cells and to realize the features in vitro.

目的：探讨培养状态下精原干细胞的生物学特征，为体外鉴定精原干细胞及认识精原干细胞在体内的生物学行为打下实验基础。

Objectives:To establish the culture system of spermatogonial stem cells in vitro;To study the mechanism of proto-oncogene c-src on the proliferation of rat spermatogonial stem cells.

目的：探索及完善精原干细胞的分离、鉴定和体外培养技术；研究原癌基因c-src在体外培养的大鼠精原干细胞中的表达及其与精原干细胞增殖相关的信号通路。

Objectives: To establish the culture system of spermatogonial stem cells in vitro; To study the effect of proto-oncogene c-src and the expression of caspase-3 gene on spermatogonial stem cells.

目的：探索及完善精原干细胞的分离、鉴定和体外培养技术；研究原癌基因c-src对体外培养的精原干细胞存活及与凋亡密切相关的caspase-3表达的影响。

BACKGROUND: Vitamin A has important effects on growth of spermatogonial stem cells. At present, we have not found an inductive substance of promoting growth and differentiation of spermatogonial stem cells during in vitro culture.

摘要背景：维生素A在体内对精原干细胞生长具有重要作用，目前还没有发现在体外培养过程中能够很好促进精原干细胞生长与分化的诱导物质。

To compare the growth characteristics of non-hematopoietic adult stem cells derived from rat fetal blood and rat bone marrow in vitro, and to study the differentiation of these stem cells into neuron-like cells in vitro,the fetal blood of pregnant rats and bone marrow of adult rats were sterilely collected; mononuclear cells were isolated by using standard Ficoll-hypague techniques and then cultured in DMEM/LG containing 10% fetal bovine serum.

为了比较大鼠胎血和骨髓中非造血成体干细胞（non-hematopoietic adult stem cells，NASC）体外培养过程中的生长特性及体外诱导两者向神经元样细胞分化的异同，在无菌条件下采集孕大鼠的胎血和成年大鼠的骨髓，用Ficoll-hypague分离液分离出单个核细胞后，种植于含10%胎牛血清的DMEM/LG培养液内。收获的NASC传代培养，用流式细胞仪检测细胞的免疫表型。

To compare the growth characteristics of non-hematopoietic adult stem cells derived from rat fetal blood and rat bone marrow in vitro, and to study the differentiation of these stem cells into neuron-like cells in vitro,the fetal blood of pregnant rats and bone marrow of adult rats were sterilely collected; mononuclear cells were isolated by using standard Ficoll-hypague techniques and then cultured in DMEM/LG containing 10% fetal bovine serum.

为了比较大鼠胎血和骨髓中非造血成体干细胞（non-hematopoietic adult stem cells，NASC）体外培养过程中的生长特性及体外诱导两者向神经元样细胞分化的异同，在无菌条件下采集孕大鼠的胎血和成年大鼠的骨髓，用Ficoll-hypague分离液分离出单个核细胞后，种植于含10%胎牛血清的DMEM/LG培养液内。

To compare the growth characteristics of non-hematopoietic adult stem cells derived from rat fetal blood and rat bone marrow in vitro, and to study the differentiation of these stem cells into neuron-like cells in vitro,the fetal blood of pregnant rats and bone marrow of adult rats were sterilely collected; mononuclear cells were isolated by using standard Ficoll-hypague techniques and then cultured in DMEM/LG containing 10% fetal bovine serum. The acquired NASCs were subcultured for passage.

为了比较大鼠胎血和骨髓中非造血成体干细胞（non-hematopoietic adult stem cells，NASC）体外培养过程中的生长特性及体外诱导两者向神经元样细胞分化的异同，在无菌条件下采集孕大鼠的胎血和成年大鼠的骨髓，用Ficoll-hypague分离液分离出单个核细胞后，种植于含10%胎牛血清的DMEM/LG培养液内。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。