组织细胞

Neuroectoderm; neural crest; neural plate; floor plate; neural tube; neuraxis; neurulation; neuroblasts; neural stem cells; neuroprogenitor cells; stem cells; differentiation; ontogeny; morphogenesis; histogenesis; organogenesis; synaptogenesis; gangliogenesis; embryogenesis; axonogenesis; retinogenesis; gliogenesis; glial progenitor cells; oligodendrocyte progenitor cells; retinal progenitor cells; nerve growth factor; neurotrophic factors; trophic factors; growth factors; neural tube defects; anencephaly; spina bifida; neuroblastoma cells; neurogenesis; development; developmental stages

神经外胚层；神经脊；神经板；底板；神经管；轴索；神经胚形成；成神经细胞；神经干细胞；神经母细胞；干细胞；分化；个体发生；形态发生；组织发生；器官发生；突触发生；神经节发生；胚胎发生；轴突发生；视网膜发生；神经胶质发生；神经胶质祖细胞；少突神经胶质细胞祖细胞；视网膜祖细胞；神经生长因子；神经营养因子；营养因子；生长因素；神经管缺陷；无脑；脊柱裂；成神经细胞瘤细胞；神经发生；发展；发育阶段

Neuroectoderm; neural crest; neural plate; floor plate; neural tube; neuraxis; neurulation; neuroblasts; stem cells; differentiation; ontogeny; morphogenesis; histogenesis; organogenesis; synaptogenesis; gangliogenesis; embryogenesis; axonogenesis; retinogenesis; gliogenesis; glial progenitor cells; oligodendrocyte progenitor cells; retinal progenitor cells; nerve growth factor; neurotrophic factors; trophic factors; growth factors; neural tube defects; anencephaly; spina bifida; neuroblastoma cells; cell migration; neurogenesis; development; developmental stages

神经外胚层；神经脊；神经板；底板；神经管；轴索；神经胚形成；成神经细胞；干细胞；分化；个体发生；形态发生；组织发生；器官发生；突触发生；gangliogenesis；胚胎发生；axonogenesis；retinogenesis；gliogenesis；神经胶质祖细胞；少突神经胶质细胞祖细胞；视网膜祖细胞；神经生长因子；神经营养因子；营养因子；生长因素；神经管故障；无脑；脊柱裂；成神经细胞瘤细胞；细胞迁移；神经发生；发展；发展进程下一页末页共有 23 条记录，本页从第 1 到第 10 条。

The results show that the secretory ducts are schizogenous cavity which are only distributed in the stem and the leaf.The initial of the secretory duct drives from the ground meristem.

结果表明，分泌道为裂生腔隙，只分布于茎和叶中；分泌道原始细胞起源于基本分生组织；分泌道原始细胞团裂隙的扩大靠鞘细胞的插入和上皮细胞自身的切向伸长；成熟的分泌道呈圆形或椭圆形，由一层上皮细胞和其外的1 ～2 层鞘细胞包被。

Methods At first, retrovirus vectors encoding IFN-γ or IL-4 gene were constructed. They were transfected into PA317 packaging cells by lipofectamine, PA317IFN-γ and PA317IL-4 cells were obtained. C6 glioma cells were infected with replication deficiency retrovius containing IFN-γ or IL-4 gene, cell morphology、cell growth curve and cloning efficiency assay were examined. The intracranial C6 glioma animal model was established in immunocompetent Wistar rats. PA317IFN-γ and PA317IL-4 cells were stereotactically implanted into the tumor areas alone or together. The survival of tumor bearing rats were examined, tumor volumes were measured and immunohistochemical analyses of CD4〓 and CD8〓 T lymphocyte infiltration were performed.

构建和鉴定携带IL-4或IFN-γ基因的逆转录病毒载体，将其导入逆转录病毒包装细胞PA317，通过G418抗性筛选，得到携带目的基因的包装细胞并鉴定；应用携带IL-4或IFN-γ基因的复制缺陷型逆转录病毒感染C6胶质瘤细胞，观察对C6胶质瘤细胞形态、细胞生长曲线和克隆形成率的影响；建立C6胶质瘤大鼠脑内移植动物模型，将携带IL-4和IFN-γ基因的逆转录病毒包装细胞分别或联合注射到脑内荷瘤大鼠的肿瘤组织中，观察其治疗作用，并初步探讨其机制。

The expressions of peanut agglutinin, phasolus vulgaris agglutinin, ulex europaeus agglutinin and soybean agglutinin receptors during hepatocarcinogenesis induced by chemical carcinogen were studied with affinitive histochemistry.

结果部分卵圆细胞、过渡细胞之PNA，PHA，UEA阳性；正常肝细胞、增生灶、增生结节之PNA，PHA，UEA，SBA均阴性；肝癌组织中PNA，PHA，UEA，SBA均阳性。④结论在致癌剂作用下所出现的卵圆细胞及其分化的过渡细胞，与肝癌细胞具有某些共同的糖结合蛋白。

The myoblasts are the precursor of the maturated muscle cells, while the satellite cells are a kind of mononucleus cells which have the characteristics and function of the myoblasts. The satellite cells participate in the growth of skeletal muscle, the repair after injury of the muscle and provide nuclei to the maturated muscle for the normal alternation of cell nuclei. They are very important to the maintenance of the function of skeletal muscle.

成肌细胞为成熟肌细胞的前体细胞，而肌卫星细胞则是成熟骨骼肌组织中具有成肌细胞特征和功能的一类细胞，参与骨骼肌的生长、损伤后的修复以及为正常骨骼肌细胞核的更替提供细胞核，对骨骼肌正常功能状态的维持很重要。

With the increase of cell density, soma was slenderer and slenderer and like fibroblast.② Growth curves of PDMCs: Growth latency ranged from 2 to 8 days after cell inoculation. During this period, adherence was observed gradually but not obviously amplified. Eight days later, cells entered log growth phase.

结果：①多分化潜能细胞的原代培养情况：胎盘组织消化后获得细胞中仅有少量的贴壁细胞，经两周后逐渐形成扁平单层细胞，呈漩涡状生长或成簇生长，随着细胞密度的增加，胞体变得细长，形态类似成纤维细胞。

① All this suggested that during the hepatocarcinogenesis and the developing stage of liver cancer in a rat its organism never cease to monitor the activities of and eliminate the abnormal cells;② During the precirrhosis and cirrhosis stage,the velocity and extent of tissue proliferation was limited by cell apoptosis.

①大鼠肝癌发生过程中，机体进行细胞增殖以补偿因DEN损害导致肝细胞减少的同时，还通过细胞周期调控机制，以细胞凋亡为表现形式，始终在监测和清除着异常细胞；②肝硬变前期和肝硬变期，机体通过细胞凋亡，使组织增生的速度和规模受到控制。

The hFCECs were cultured by sticking tissues piece method that the cornea were divided into the limbus and central tissue piece and digestive method,respectively.For digestive method,the digestive juice of 5mg/ml DispaseⅡ+0.25%trypsin was chosed.D/F12 with 10%fetal bovine serum and 100 U/ml penicillin and streptomycin were used in this study,the culture condition was 37℃and 5%CO2,and culture medium changed every three days2、Passage of hFCECsAfter more than 80%confluenced,cells from corneal limbus hFCECs were digested for 5-15min with different concentrations of trypsin/EDTA at 37℃,and then passaged at a ratio of 1:2.The cells were subcultured on empty plates,mouse 3T3 fibroblast feeder layer,fetal corneal stromal cell feeder l ayer or HTK feeder layer respectively.And D/F12, mouse 3T3 fibroblast conditioned medium,fetal corneal stromal cells conditioned medium or HTK conditioned medium with 10%FBS and 100 U/ml penicillin and streptomycin were used respectively as the culture medium.And the culture medium were changed every three days as well.

方法一、人胎儿角膜上皮原代和传代培养1、原代培养严格无菌操作获取人胎儿角膜片，采用组织块贴壁法、酶消化法原代培养人胎儿角膜上皮细胞。2、传代培养角膜缘部的细胞生长融合达80%以上，不同稀释浓度的胰酶/EDTA消化液消化传代分别接种于空板、小鼠3T3成纤维细胞饲养层、胎儿角膜基质细胞饲养层及HTK饲养层，培养液分别采用D/F12、小鼠3T3成纤维细胞条件培养液、胎儿角膜基质细胞条件培养液、HTK条件培养液。

LDH in culture fluid, SOD, XOD, free calcium in L-6TG cell and mitochchondral respiration were evaluated in each group; apoptosis was detected by flow cytometer with PI staining method and agarose gel electrophoresis; the immuneohistochemical method was used to determine the expression of bcl-2 and Caspase-3 ; the morphoiogic changes were observed with microscope.

将培养的L-6TG大鼠肌母细胞随机分为3组：①正常对照组，②缺血再灌注组（1R组），③缺血预处理组，观测了培养上清中LDH、细胞内SOD、XOD、Ca(上标 2+)含量的变化；采用MTT法检测线粒体的功能；利用流式细胞仪和细胞DNA电泳结果检测细胞凋亡情况；采用免疫组织化学的方法检测bcl-2及Caspase-3的蛋白表达情况，结合自动图像分析系统对其结果进行定量分析；在光镜下观察细胞的形态学改变。

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。