查询词典 stem cells

Methods Stem cells were isolated and expanded from adipose tissue and then induced to differentiate into cells of osteogenic, adipogenic and neurogenic lineages in vitro.

方法从成人脂肪组织分离脂肪来源的成体干细胞，检测其生长特性、表型以及成骨、脂肪和神经的能力。

RESULTS: The umbilical cord blood stem cells cultured in vitro were differentiated into dispersed or agminated islet-like cells following induction, with the presence of Insulin-positive reaction.

结果：体外培养的人脐血干细胞通过细胞因子组合诱导后，可见散在的胰岛样细胞或成群的胰岛样细胞群，呈Insulin阳性反应。

Objective Whether amniotic epithelial cells could promote the survival and differentiation of neural stem cells was explored in vitro.

目的：探讨羊膜上皮细胞是否能在体外促进胚胎脑神经干细胞的存活及分化。

Objectives: To investigate the effects of adhesion and proliferation of bone mesenchymal stem cells in the surface of lactic acid/glycolic acid/asparagic acid-co-polyethylene glycol PLGA- tri-block polymer scaffolds, try to find a new biomaterial to induce seed cells in vitro for bone tissue engineering.

目的：探讨大鼠骨髓间充质干细胞BMSCs在聚丙交酯/乙交酯/天冬氨酸-聚乙二醇三嵌段多元共聚物 PLGA-表面粘附、增殖的情况，为组织工程学体外诱导种子细胞生长提供新的生物材料。

Methods The skeletal muscle stem cells were enzymatically isolated with collagen and dispase, and then purified by different adhesion time from 6 female SD rats. The purified cells were transinfected with adenovirus carrying lac-Z gene, and injected into the bladder neck of 6 autologous and 4 allogeneic rats. Tissues of blader neck and ureter were obtained in sacrified rats after 5 and 15 days, histological examination and X-gal staining were performed.

采用混合酶消化及反复差速贴壁法分离、纯化培养SD大鼠骨骼肌干细胞，然后用携带lac-Z基因的腺病毒载体转染肌干细胞，待转染成功后将携带lac-Z基因的骨骼肌干细胞注射于自体和同种异体的膀胱颈及后尿道周围，分别于注射后5、15d，处死大鼠取出膀胱颈及后尿道，行组织学检查及X-gal染色。

BACKGROUND: Embryonic stem cells develop from early blastular inner cell mass. Under proper condition, ESCs can maintain undifferentiated state in vitro, normal diploid nuclear type, and proliferative potential. In addition, ESCs possess multi-directional differentiation capacity and can differentiate into all sorts of cells of three germ layers.

背景：胚胎干细胞来源于发育早期囊胚的内细胞团，适当条件下能在体外维持未分化状态、正常二倍体核型及无限增殖能力，且具有多向分化潜能，能够发育分化成机体3个胚层的所有类型细胞。

OBJECTIVE: To investigate the chondrogenesis of bone marrow mesenchymal stem cells, chondrocytes and adipose-derived adult stromal cells in three-dimensional scaffolds

目的：考察3种种子骨髓间充质干细胞，软骨细胞和脂肪源性成熟基质细胞在支架中的成软骨特性。

Mbryonic stem cells are developmentally immature cells that are capable of self-renewal and of differentiating into any type of tissue in the body.

S细胞是发育上不成熟的细胞，具有自我更新和分化成人体内任何一种类型的组织细胞的功能。

The dult stem cells abilities of differentiation, self-renewing and self-maintenance tended to be limited so that it, which is characterized of short life time, could differentiate by means of mono-direction or double direction. What is the most important is that it can not differentiate all cells from the three embryonic layer.

成体干细胞具有一定的生长期，其分化能力、自我更新、自我维持能力具有局限性，生存时间相对较短，仅能单向或双向分化，其重要特点之一是它不能分化成机体所有的三个胚层来源的细胞。

To shed light on these issues, Kuo and his colleagues genetically engineered neural stem cells and ependymal cells in the SZ of newborn mice in such a way that they lacked two key proteins, named Numb and Numblike.

为了阐明这些问题，Kuo和他的同事对新生小鼠的SZ神经干细胞和室管膜细胞进行这样的一种遗传工程学处理，敲掉2个关键蛋白，分别命名为Numb 和 Numblike。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。