查询词典 stem cells

Scientists have known that neural stem cells play a key role in both embryonic and postnatal mice, driving the development of specialized cells within the brain such as neurons, astrocytes, oligodendrocytes, and ependymal cells.

科学家们已经知道神经干细胞在胚胎和出生后小鼠均扮演着重要角色，推动着大脑具体细胞的发育例如神经元、形细胞，胶质细胞和室管膜细胞。

Scientists hae known that neural stem cells play a key role in both embryonic and postnatal mice, driing the deelopment of specialized cells within the brain such as neurons, astrocytes, oligodendrocytes, and ependymal cells.

科学家们已经知道神经干细胞在胚胎和出生后小鼠均扮演着重要角色，推动着大脑具体细胞的发育例如神经元、星形细胞，胶质细胞和室管膜细胞。

OBJECTIVE: To compare the differences of gene expression and the response to bFGF of human umbilical cord CD34+ and CD133+ cells, and to explore gene expression changes of bFGF-induced umbilical cord CD34+ and CD133+ hematopotic stem cells/hemapoietic progenitor cells in vitro.

目的：利用基因芯片比较脐血CD34+和CD133+细胞基因表达的差异，并探讨碱性成纤维细胞生长因子体外诱导脐血CD34+和CD133+造血干/祖细胞分化的基因表达变化，及其对碱性成纤维细胞生长因子反应性差异。

BACKGROUND: Bone marrow mesenchymal stem cells can differentiate into renal parenchymal cells including renal intercapillary cells. BMSCs can repair kidney structure and function after damage.

摘要背景：研究发现骨髓间充质干细胞可向包括肾脏系膜细胞在内的肾实质细胞分化，且肾损伤后骨髓间充质干细胞具有修复肾脏结构和功能的作用。

L To observe the expression rule of miRNA when the lipocyte stem cells differentiated into cartilage cells or bone cells in different micro-environment and stages by in vivo tests and in vitro study.

通过体内、外试验，观察不同环境、不同阶段家猪脂肪干细胞向软骨、成骨方向分化时miRNA表达的规律。（3）研究双层一体Collagen/TCP影响家猪脂肪干细胞 miRNA表达的变化，并验证与鉴定成软骨、成骨分化相关的miRNA。

Bone marrow-derived mesenchymal stem cells are a population of cells capable of replicating as undifferentiated cells and that have the potential to differentiate to lineages of mesoblastic origin. And the characters of BMSCs have suggested the great value of this specific cell population for tissue engineering.

骨髓间充质干细胞具有自我复制、未分化的特点，并可在不同条件下分化为中胚层起源的多种细胞，这些特点决定了其在组织工程中的重要地位。

BACKGROUND: Bone marrow mesenchymal stem cells can differentiate into osteoblasts, chondrocyte, sarcoblasts, adipocyte, neuroepithelial cells, as well as vascular endothelial cells under different conditions.

背景：骨髓间充质干细胞在不同条件下可以分别分化为成骨细胞、软骨细胞、成肌细胞、脂肪细胞、神经胶质细胞、血管内皮细胞等。

We observed that the nestin positive cells distributed mainly near the internal limiting membrane and mantle layer of neuroepithelium. The positive cells arranged regularly along the neuroepithelial layer. After RA-treated, it was found that the number of neural stem cells reduced, especially at the eighth day of embryo p

RA作用后Nestin阳性细胞数目均普遍低于正常组；尤其在E8.5d时阳性细胞数目减少最为显著 p CDK5相似，于胚胎E14d已见其强阳性表达，成年期、老年期表

The St. Jude team first determined that CSCs are located in ascular niches by identifying cells carrying a protein called Nestin that marks stem cells (Nestin+ cells) in four types of brain cancer remoed from patients: medulloblastoma, ependymoma,oligodendroglioma and glioblastoma.

圣犹达研究组研究了病人的四种脑肿瘤：成神经管细胞瘤、室管膜细胞瘤、少突神经胶质瘤和成胶质细胞瘤，通过鉴别名为Nestin的蛋白来识别肿瘤干细胞，第一个验证了肿瘤干细胞存在于血管性的微环境中。

We generated EG4-GFP cell lines expressing enhancing green fluorescence protein which still maintained typical characteristics of pluripotent stem cells. We microinjected green cells into perivitelline of 8-cell stage embryos as well as aggregated them to 8-cell stage embryos with zona pellucida removed, to investigate developmental fate of EG4-GFP cells during formation of chimeric blastocysts.

我们建立了稳定表达绿色荧光蛋白的EG细胞系（EG4-GFP），发现该细胞仍能保持野生型的一般生长特性；通过显微注射和体外聚集得到细胞与8-细胞受体胚胎共同发育形成的嵌合胚，发现转基因细胞参与了胚胎早期发育过程中的生长与分化，大部分细胞集中于内细胞团，也有细胞分化为滋胚层细胞。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。