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The Collaborative Program in Developmental Biology is primarily dedicated to research and education in Developmental Biology including amphibian gastrulation, molecular control of hematopoiesis, lymphocyte lineage commitment and cell development, hematopoietic stem cells, lymphocyte development, cell enlargement and cell differentiation, vertebrate embryogenesis, developmental neurobiology.

动物学系发育生物学合作研究组主要致力于两栖动力原肠胚形成，造血作用的分子控制，淋巴细胞血统定型和细胞发育，造血干细胞，淋巴细胞发育，细胞生长和细胞分化，脊椎动物胚形成，发育神经生物学等。

The Collaborative Program in Developmental Biology is primarily dedicated to research and education in Developmental Biology including amphibian gastrulation, molecular control of hematopoiesis, lymphocyte lineage commitment and cell development, hematopoietic stem cells, lymphocyte development, cell enlargement and cell differentiation, vertebrate embryogenesis, developmental neurobiology.

动物学系发育生物学合作研究组主要致力于两栖动力原肠胚形成，造血作用的分子控制，淋巴细胞血统定型和细胞发育，造血干细胞，淋巴细胞发育，细胞生长和细胞分化，脊椎动物胚形成，发育？？？经生物学等。

hemophagocytic syndrome is an abnormal systemic proliferation of histocyte lineage mediated by tc cells. it is confirmed that t cell receptor γ or β gene monoclonal rearrangements are present in some patients.

噬血细胞综合征是t细胞介导的组织细胞异常增生，部分病例已证实tcrγ或β基因的单克隆重排。

He says the fossil was like nothing he had seen before."I did several analyses to make sure that this DNA is authentic, that this DNA is really old and that this DNA is what had seemed to be a new hominine lineage," he said.

他说这个化石和他之前所见过的完全不同：「我进行几项分析，以确定这个DNA是真的，这个DNA的确很老，而且这个DNA似乎属於一个新人种的谱系。

We introduced improved primary mixed glial culture and different-attachment method to isolate and purify the OPCs, the cells were proliferated in serum-free medium, flow cytometry and immunohischemistry methods were employed to estimate the purity of cultured OPCs. Their abilities of differentiation and expression of trophic factors were identified by RT-PCR and immunostaining. Several methods including TUNEL and MTT were adopted to estimate the protective effects of conditioned culture medium from oligodendrocyte lineage cells on the primary cultured cerebellar granule neurons. Intravitreal transplant of OPCs, combined with retrograde fluorescent labeling the superior colliculus and intraorbital optic nerve transection, were used to investigate the protective effects of OPCs on the axotomized RGCs in vivo. Intravitreal transplantof OPCs or NSCs on the newborn rats, and retinal transplant of OPCs on the young rats were performed, to observe the myelin formation in the retina at different stages after cellular transplantation. Optic nerve transection was carried out on some rats with myelinated retinae, to study the influence of myelination on the injuried RGCs.

为此，本研究采用改良的胶质细胞混合培养与差速贴壁方法获得大鼠OPCs，使用无血清培养基进行扩增、培养，用免疫组织化学和流式细胞技术对培养细胞的纯度进行鉴定，对少突胶质系细胞表达部分营养因子的情况进行检测；采用TUNEL、MTT等方法对少突胶质系细胞条件培养基对原代培养小脑颗粒神经元的保护作用进行检测；将OPCs移植入成年SD大鼠玻璃体内，利用上丘逆行荧光标记技术，观察眼内移植的OPCs对眶内视神经切断时的视网膜神经节细胞的保护作用及其持续时间；将OPCs或NSCs移植入新生和幼年SD大鼠玻璃体或视网膜内，观察不同时期视网膜内髓鞘形成与分布特点，分析髓鞘的超微结构，并观察眼内髓鞘形成对损伤神经节细胞的保护作用。

Like many other Icelanders, neurologist Kari Stefansson can trace his lineage back to a single Viking, and that got him

解码基因公司创始人Kari Stefansson，他在辞去哈佛医学院职务的四年后就成了冰岛最富有的人。

Like many other Icelanders, neurologist Kari Stefansson can trace his lineage back to a single Viking, and that got him thinking about the genetic roots of disease.

和许多别的冰岛人一样，神经病学家 Kari Stefansson 能将他的家族回溯到一位北欧海盗那里。这让他对疾病的基因根源进行思考。

OBJECTIVE: To evaluate the clinical significance of minimal residual disease in childhood B-lineage acute lymphoblastic leukemia.

目的：了解检测儿童B系急性淋巴细胞性白血病微小残留病在临床上的意义，探讨其相关因素及预后的关系。

Objective To evaluate the clinical significance of minimal residual disease in childhood B-lineage acute lymphoblastic leukemia.

目的了解检测儿童B系急性淋巴细胞性白血病微小残留病在临床上的意义，探讨其相关因素及预后的关系。

The results show the affinity of the ancient population to Central Asian populations in matrilineal lineage.

与以前的新疆古代人群研究相比，该人群东部欧亚序列的成分明显增多，这可能与人群所处的地理及历史时代相关。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。