向细胞的

It has several kinds of functions : It could accelerate blood coagulation; has chemotaxis to monocyte and neutrophil , could appeal to fibroblast and cartilage cell to move to the region of the injury, takes part in the signal transduction and activation in cell , and takes part in the growth and differentiation of cell and repair in trauma.

它的功能多样，能加速血液凝固，对单核细胞和中性粒细胞具有化学趋化作用，能吸引成纤维细胞和软骨细胞向损伤区域移动，参与细胞的信号传导与活化，细胞的生长及分化，创伤修复等一系列重要生理和病理过程。

The cells were passaged no more than 5 generations,and the cell freezing density is about 3×106 cell/ml, sample numbers of each kind are between 30 and 60, conserved numbers are 150-180 ampules,biological characters of fibroblast were analysed according to the request of constructing cell line. The results were as follows: 1 Cultured cells'morpha is typical fibroblast,which is fusiformate or unregular triangle, cells is radiant,flaming or rotative during growing .Qingyuan flesh chicken's cytoplasmic tubercle is much more and shorter in contrast with Zang chicken and Langshan chicken,that can be regarded as different character from others.

细胞冻存代数在5 代以内，冻存密度为3×106个细胞/ml，每个品种的样本含量在30～60 个之间，保存管数达150～180 支，根据建系要求，对成纤维细胞的生物学性状进行分析，所得结果如下： 1 培养细胞形态为典型的成纤维状，为梭形或不规则三角形，细胞在生长时呈放射状、火焰状或旋涡状走形，清远麻鸡的细胞形态与藏鸡和狼山鸡相比，胞质向外伸出的突起较多，且较短。

PC12 cells were exposed to RA with different concentrations for 72 h and the lengh of neurite and max diameter of PC12 cells were observed at 24,48,and 72 h respectively. The expression of MAP2 was detected by immunocytochemistry after PC12 cells were exposed to RA for 72 h.

不同浓度的RA组均诱导PC12细胞72 h，在24 、48 和72 h分别观察细胞的突起长度和细胞最大直径的变化情况；在诱导72 h后利用免疫细胞化学技术，观察不同剂量RA作用后PC12细胞向MAP2阳性细胞分化的情况。

PC12 cells were exposed to NGF with different concentrations for 72 h and the lengh of neurite and max diameter of PC12 cells were observed at 24,48,and 72 h, respectively. The expression of MAP2 was detected by immunocytochemistry after PC12 cells were exposed to NGF for 72 h .

不同浓度的NGF组均诱导PC12细胞72 h，在24、48和72 h分别观察细胞的突起长度和细胞最大直径的变化情况；在诱导72 h后利用免疫细胞化学技术，观察不同剂量NGF作用后PC12细胞向MAP2阳性细胞分化的情况。

With DGD method, the electron microscopy observation has provided new information on the process of chromatin migration. That is: Firstly, the nucleus moved toward cell wall and a picture characteristic of synizesis stage of meiosis appeared; Secdonly, the transmigration of chromatin occured through CC, and a more extensive region constituted of nuclear skeleton left behind chromatin, which was named as"clear spaces" under light microscopy; Thirdly, at the late stage of synizesis, most of chromatin had gone into adjacent cells through CC and fused into a whole, and the nuclear skeleton left in the former cell gradually mixed with cytoskeleton in cytoplasm.

DGD—包埋去包埋电镜观察表明：百合花粉母细胞中有类似核纤层的结构存在；在染色质穿壁运动过程中，首先是细胞核向细胞壁靠拢，并可留下瞬间的运行轨迹——细胞核后方出现只有细胞骨架而少有细胞器的区域；其后是染色质开始穿壁，在穿壁染色质后方细胞核内出现无染色质仅有密集的核骨架的区域，到了染色质穿壁后期，大部分核物质都已穿至相邻细胞，并彼此融合，而残余在原穿出细胞中的核骨架己逐渐与原细胞的胞质骨架融为一体。

In order to analyze experimentally the back-scattering micro-spectrum difference between human normal stomach epithetic cell and the cancerous cell to provide optical technique for clinical checking,a micro-spectral measurement setup for checking cell was established based on fiber confocal microscopically imaging technique combined with cell light scattering theory. It could provide micro-imaging and micro-medical spectral information simultaneously.

为了在实验上分析人正常胃上皮细胞与癌变细胞的显微后向散射光谱的区别，为临床医学检测提供实验依据，在光纤共聚焦显微成像技术基础上，结合细胞散射理论，建立了一套基于光纤共聚焦的细胞检测显微光谱分析装置，能够同时获取细胞显微图像和显微光谱医学信息。

The chloroplast of the mesophyllous cells in the white part of the green-white leaf of PM3 were dissolving or had dissolved.

观察其叶片表面结构和叶肉细胞超微结构，结果表明：3个突变株系的叶片气孔密度增大，气孔面积减少，单位视野中气孔所占面积比则变化不大；叶肉细胞中叶绿体体积增大，形状变圆并移向细胞中央；PM3株系白绿相间叶片的白色部分，其叶肉细胞中叶绿体多数正在或已经消解，结构不完整。

At early stage of cancer cell formation, provoked autophagy help to eliminate damaged cell organelle、and degrade the noxious substance in endochylema(eg: peroxidate)as well, pretect normal cells from cancerization.Autophagy level modulation might be cooperation or rivalry with chemotherapy to cancer cells compares to single use of chemotherapy drugs, apoptosis rate of cancer cells fluctuates with autophagy level.

癌细胞形成早期刺激自噬能够清除受损细胞器，分解细胞内过多的有害物质，阻止正常细胞向癌细胞转化，调控自噬的表达和化疗药物联合对肿瘤细胞的生长有协同或拮抗作用，表现为与单纯用化疗药物相比，调控自噬表达后肿瘤细胞的凋亡率发生了变化。

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。

BMSCs could differentiate into CLCs in vitro induced by the supernatant liquid of the cardiomyocytes, 30% of which can make the induction effects reach the top.

心肌细胞的培养上清能够诱导BMSCs分化为心肌样细胞，且30%心肌细胞培养上清是诱导BMSCs向心肌样细胞分化的最适浓度。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。