查询词典 spermatogonial

MAIN OUTCOME MEASURES: The morphological changes of cryptorchidism, and the sorting results of spermatogonial stem cells.

主要观察指标：隐睾的形态学变化，精原干细胞分选结果。

The bodies have much greater potential to regulate spermatogonial stem cell proliferation and differentiation. The dosage of GFRα1 mRNA produced by undifferential spermatogonial cells regulates the signal transduction of glial cell-derived neurotrophic factor so as to regulates the direction of spermato gonial stem cells: at a low level, spermatogonoial stem cell favors differentiation; at a high level, spermatogonial stem cell favors self-proliferation.

GFRαl在小鼠生精恢复过程中以剂量相关性调控著胶质细胞源性神经营养因数资讯传人，从而调控著精原干细胞的去向：高剂量时诱导其增殖，低剂量时诱导其分化。

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。

In vitro culture of spermatogonial stem cells is a basic technology of biology ,which can promote the biology investigation of spermatogonial stem cells . So spermatogonial stem cells in vitro culture has become one of the hot fields in the Biology of the Stem Cell in recent years .

精原干细胞（Spermatogonial Stem Cells ， SSCs）的体外培养是开展研究精原干细胞生物学的一项最基本的生物技术，近年来成为干细胞生物学研究的热点领域之一。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。