查询词典 stem cells

PartⅠTheoretical Research MSCs is stem cells capable of multi-directional differentiation arising from mesoblast, which principally lies in stroma of connective tissues and organs, especially abundant in marrow, even divorted from fetal umbilic blood, differentiates into osteocytes, chondrocytes, tendon cells, myoctes, nerve cells, adipose cells and hematopoiesis stromal cells and so on.

理论研究间充质干细胞(mesenchymal stem cells，MSCs)是中胚层来源的具有多向分化能力的干细胞，主要存在于全身结缔组织和器官间质中，以骨髓组织中含量最为丰富，胎儿脐血中亦可分离得到。

At least two types of stem cells, germline stem cells and follicle stem cells are located at the anterior region of the ovariole and contribute to the continuous production of eggs in Drosophila ovary.

这些卵来自两种不同的干细胞：germline stem cells 与 follicle stem cells；这两种干细胞都会持续地进行细胞分裂，产生新的细胞，并且进行分化。

Bone marrow containing hematopoietic stem cells has already been known , theses another group stem cells exists in bone marrow named mesenchymal stem cells. MSCs retain the potentiality of differentiating into osteoblast, chondroblast, adipoblast, tendonblast, myoblast, cardiomyoblast, neuron, etc , which displays a bright prosperity of its use in tissue enigeering, wound healing , cell transplatation and gene therapy. MSCs can be obtained and expanded easily compared to ESC without any problems of morality , law and ethic , immunology.

最早在130年前，德国病理学家Cohnheim在研究创口愈合时就推测在创口愈合过程中出现的部分细胞可能来自骨髓。20世纪70年代，Friendenstein发现一小部分骨髓中贴壁最牢固的细胞经数此传代后形成独特的纺锤形外观，具有形成成骨细胞或软骨细胞的能力。80年代以来，许多研究小组进一步证实了Friendenstein分离到的这些细胞是多能的，在体外特定诱导条件下，可以分化为成骨细胞、软骨细胞、脂肪细胞、成肌细胞、神经元等，被称为骨髓间充质干细胞(Bone MarrowMesenchymal Stem Cells，MSCs)。

Background:Multipotent mesenchymal stem cells are multipotent stem cells that can differentiate into tissues of mesodermal origin and can be isolated from various tissues.

背景：间充质干细胞(multipotent mesenchymal stem cells，MSC)是能分化为中胚层组织的多能干细胞，它可以从机体的各种组织中分离得到。

Over the past 28 months, the induced pluripotent stem cells iPS cells, with characteristics identical to those of embryonic stem cells (ES cells directly in vitro reprogrammed from nonembryonic cells and tissues have captured great attentions in both scientific community and general public.

日本和美国研究小组先后用4种基因将小鼠(2006年8月)和人(2007年11～12月)的体细胞在体外重编程为诱导性多潜能干细胞(induced pluripotent stem cells，iPS cells)，此后在短短两年多时间内，iPS 细胞的研究和关注度呈爆炸式增长。

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。

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。

Neural stem cells are special cells which have some capacity for self-renewal and the potencies to differentiate with multi-direction. The discovery of neural stem cells is a breakthrough for neural regeneration in the central nervous system.

神经干细胞(neural stem cells，NSCs)是一类具有自我更新能力和多向分化潜能的特殊细胞，它的发现，是中枢神经系统再生研究的一大突破。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐