细胞的

There was an obvious increase of insulin receptor gene and protein in the cerebral ischemia reperfusion tissues in rats. The positive cells such as neuron, neuroglia cells, vascular endothelium cells possibly participated in regulating the processes of energy metabolism of cells and neovascularization. It implied that the high expressions of insulin receptors in vascular endothelium cells in ischemic zones possibly participated in regulating the pathophysiological changes of the blood vessels in ischemic zones; The higher expressions of insulin receptors in different cells were possibly one of the self-protective machanisms in which the ischemic tissues confront the anoxemia injury.

脑缺血再灌注大鼠脑组织胰岛素受体基因和蛋白水平表达增加；半暗带区神经元、部分神经胶质细胞及血管内皮细胞等阳染细胞可能参与脑缺血后组织细胞的能量代谢、促新生细胞形成等病理生理调节过程；胰岛素受体在缺血区血管内皮细胞高表达提示其可能在缺血区血管的病理生理变化中起某种调节作用；胰岛素受体在不同细胞中表达增高可能是缺血脑组织对抗缺血缺氧损伤的自身保护机制之一。

In HeLa cells trasnfected with GFP-BGLF4 expressing plasmids, cells were sorted into two groups with various levels of BGLF4 expression by FACS. We found that these two populations of cells display dramatically different cell cycle profile.

若利用HeLa细胞将GFP-BGLF4转染送入细胞后，对BGLF4表现量多或表现量少的细胞群各别分析其DNA含量，则发现BGLF4表现量高时S-phase细胞明显增加，而且这些细胞的细胞周期将无法离开S-phase往G2/M-phase过渡转换时期推进。

RESULTS MTT assay showed that hydroquinone inhibited the growth of cells in a concentration-dependant manner and the survival number of XRCC1-deficient cell was less than that of the two control groups. Comet assay revealed that different concentrations of hydroquinone caused more severe DNA damage in XRCC1-deficient cell line than in control cells and there were no significant difference in the two control groups.

结果 MTT结果显示，不同浓度10~100μmolL^(-1氢醌作用的XRCC1缺陷细胞，490 nm波长处吸光度值低于对照组细胞，提示缺陷细胞的细胞存活率比正常细胞低；彗星实验结果显示，不同浓度的氢醌对XRCC1缺陷细胞DNA损伤比对照组细胞更严重，而2个对照组细胞之间没有明显差异。

Methods: Electrets Teflon PTFE,±300 V,±1 000 V were used to treat 3T3 cells for 24, 48 and 72 h. Then the influences of electrets on cell cycle and surface charge of 3T3 cells were studied by flow cytometry and electrophoresis, respectively.

选用±300 V和±1 000 V驻极体分别作用成纤维细胞24、48和72 h，用流式细胞术和细胞电泳技术测定成纤维细胞的生长周期和细胞表面电荷。

The cell biological features were observed by inverted phase contrast microscope, l ight microscope, electron microscope, cell vital ity assay, cell growth curve and cells staining after harvest and during the periods of culturing the primary, the 1st passage and 2nd passage.

分别在取材后、原代、第1 代、第2 代细胞培养期间，进行髓核细胞活力测定；爬片培养后进行甲苯胺蓝、HE、聚集蛋白聚糖番红O、Ⅰ型及Ⅱ型胶原免疫组织化学染色观察；MTT 法绘制髓核细胞生长曲线，并行原代及第2 代细胞透射电镜观察，对体外细胞的生物学特性进行研究。

Methods: By the adherence , to isolate the bone marrow mesenchymal stem cells and adipose mesenchymal stem cells , to compare the characteristics of the two cells , including obtain the quantity of the cells 、 the morphos of the cells 、 the rate of adherence 、 cell kinetics 、 cell surface marker .

利用细胞贴壁性对骨髓间充质干细胞和脂肪间充质干细胞进行分离，比较两种细胞的情况，包括(1)单位质量组织获得两种细胞的量、(2)细胞形态、(3)细胞贴壁率、(4)细胞动力学、(5)细胞表面标记。

1、Cur inhibits K562 cells growth and induces cell apoptosis may be correlated with the down-regulation of p210~、inhibition of protein tyrosine phosphorylation and the signaling molecules such as p-Erk1/2、c-myc which are relevant with cell growth and apoptosis; 2、Cur synergizes STI571 to inhibit K562 cell growth and induce cell apoptosis may be correlated with the down-regulation of p210~、inhibition of protein tyrosine phosphorylation and the signaling molecules such as Hsp90、PKC which are relevant with cell growth and apoptosis; 3、Cur reverses the resistance of K562/G01 cells to STI571, and synergizes STI571 to inhibit K562/G01 cell growth and induce cell apoptosis; 4、Cur inhibits human originated CML CD34~+ cell growth、induces cell apoptosis, and enhances STI571 to down-regulate the expression of p210~, finally inhibit cell growth and induce cell apoptosis.

从以上实验结果我们得出如下结论： 1、Cur抑制K562细胞增殖、诱导细胞凋亡的作用可能与其下调p210~、蛋白酪氨酸磷酸化水平以及抑制下游p-Erk1/2、c-myc等信号分子有关； 2、Cur协同STI571抑制K562细胞增殖、诱导细胞凋亡的作用可能与其下调p210~、蛋白酪氨酸磷酸化水平以及抑制Hsp90和下游PKC等信号分子有关； 3、Cur可逆转K562/G01细胞对STI571的耐药性，并与STI571协同抑制K562/G01细胞增殖和诱导凋亡，其抑制K562/G01细胞增殖、诱导细胞凋亡的作用可能与其下调p210~、蛋白酪氨酸磷酸化水平以及抑制下游Procaspase-3和NF-κB等信号分子有关； 4、Cur可抑制来源于CML患者骨髓的CD34~+细胞的增殖并诱导其凋亡，还可协同STI571下调CML CD34~+细胞p210~表达，进而协同抑制细胞增殖、诱导细胞凋亡。

Since an excessive cell growth is considered as the main pathological event, cell proliferation model occupy most of the animal models, and these cells include retinal pigment epithelial cell, fibroblast cell, cartilage cell and vascular endothelial cell.

由于PVR的主要病理变化是细胞的过度增生，因而动物模型多以细胞增生模型为主，细胞种类有视网膜色素上皮细胞、成纤维细胞、软骨细胞、血管内皮细胞等。

To understand the infectivity by porcine endogenous retrovirus with porcine skin fibroblast cell in vitro and in vivo, porcine skin fibroblast cell established by our laboratory were co-cultured with neo/HEK293 cell for the infection of RERV in vitro, and were subcutaneously transplantated to SCID (severe combined immuno-deficiency) mice for the infection of PERV in vivo, laying the foundation for valuation of biologic safety of xenotrans-plantation. The event of neo/HEK293 cells infected by PERV occurred during co-culture of porcine skin fibroblast cells with neo/HEK293 cells, expanding the rang of the infection of porcine endogenous retrovirus. Afterpig cells transplantated subcutaneously in SCID mice, the microchimerism (78.57%) of pig cells occurred widel, and there was phenomena of integration of PERV provirus (85.71%) in several organs or tissues remote from the injected sites, indicating infection of PERV in SCID mice in vivo. yet, there is no evidence of active viral replication in analysis of PERV env RNA of these tissues or organs.

为了解猪皮肤成纤维细胞PERV在体外和体内的感染性，通过建立猪皮肤成纤维细胞系，将所建细胞系与人胚胎肾293细胞体外共培养，并移植于严重联合免疫缺陷鼠皮下进行猪皮肤成纤维细胞PERV的体外和体内感染性实验，结果表明，猪皮肤成纤维细胞与人胚胎肾细胞共培养过程中，猪内源性逆转录病霉感染人胚胎肾细胞，进一步证实和拓宽了猪细胞PERV感染人细胞的范畴；猪皮肤成纤维细胞移植SCID鼠皮下后，导致SCID鼠发生猪细胞微嵌合(78.57%)和PERV在体内感染(85.71%)并且波及远离移植部位的多种组织或器官，但是并未检测出SCID鼠组织中表达PERV env RNA。

The methods of sticking tissues piece to culture primary hFCECs and mouse 3T3 fibroblast conditioned medium to culture passage hFCECs were established;2.The Proliferative capacity of corneal limbus hFCECs is better than central hFCECs.3.3T3 conditioned medium could markedly promote the proliferation of epithelial cells

结论一、组织块贴壁法原代培养人胎儿角膜上皮细胞以及小鼠3T3成纤维细胞条件培养液传代培养方法基本建立；二、人胎儿角膜缘部上皮细胞增殖能力优于中央部；三、3T3细胞条件培养液能促进角膜上皮细胞的增殖。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。