细胞发生

There were the radicle polarity and the plumule polarity in differentiation of the first somatic embryogenesis.

此外，体细胞胚的发生和分裂是不同步的，往往在同一张切片上既可看到单个的胚性母细胞，又可见到二细胞、四细胞以致多细胞原胚并存的多样化原胚细胞群体。

The porine is the polyembryony animal, many obtains the ovocyte from the porine ovary although but the maturity quite to be low; Because the ROSI technology is does not have to grow the mature sole round sperm cell to pour into directly completely in the ovicell nature, jumped over the spermatozoon in to pass through the physiology and the biochemistry, if the ovicell nature mature or the activation degree were insufficient, added the round immature sperm cell maturity quite inferior reason, very possibly Causes the ROSI micro fertilization defeat.

猪是多胎动物，从猪卵巢上获得的卵母细胞数量虽然较多，但成熟度比较低；由于ROSI技术是将没有完全发育成熟的单一圆形精细胞直接注入卵胞质内，跳越了精子在穿过透明带和卵质膜等过程中所发生的生理和生化反应；如果卵胞质成熟或活化程度不够，加之圆形未成熟精细胞成熟度比较差等原因，很可能造成ROSI受精的卵母细胞内部激活因子蓄积减少和生成不足，引起精核解聚困难、精圆核不能形成、第二极体不能排出、卵母细胞孤雌发育率增加等，使ROSI显微受精失败。

The podocyte is a highly differentiated interdigitating cell,theist iniury is closely associated with the genesis and development of proteinuria,This article reviews manifestations,mechanism and the treatment of podocyte injury.

足细胞是一种终末分化的多突状细胞，足细胞的损伤与蛋白尿的发生、发展密切相关，现通过对常见足细胞损伤的表现，及针对足细胞损伤的机制和治疗予以综述。

As antioxidants, the vitamin E or quercetin (10μg/mL) significantly attenuated the toxic effects of PCBs on the cultured hepatocytes. The above results indicated that vitamin E or quercetin might antagonize the toxic effect of PCBs via antioxidizing effects on in vitro cultured chicken embryo hepatocytes.

结果表明离体培养的鸡胚肝细胞可作为肝损伤的细胞模型，PCB对培养的肝细胞的损伤及抗氧化剂维生素E和槲皮素对它的缓解作用提示， PCB对肝细胞的损伤可能是通过诱导细胞膜发生脂质过氧化而导致细胞的死亡。

Methods:The proliferation inhibition of cantharides injections on LoVo cells were detected by tetrazolium.Annexin V-FITC were applied to study cell apoptosis of LoVo cells.FCM were applied to detect the expressions of the Fas and Bcl-2 protein.Results:Cantharides iniections could inhibit the proliferation of LoVo cells and could couse cell apoptosis.

四甲基偶氮唑盐测定药物对LoVo细胞抑制作用与时间和剂量的关系，Annexin V-FITC方法对细胞凋亡进行检测，流式细胞术检测细胞Fas、Bcl-2蛋白表达水平结果：MTT实验表明复方斑蝥注射液可抑制LoVo细胞的生长并诱导发生凋亡。

It is well known that retinal pigment epithelial cells are predominant proliferative cells in PVR which is an excessively wound healing response occurring after RPE cell wounding. The activated RPE cells migrate from their normal, sessile state to vitreous and onto both surfaces of the retina, in which they begin to dedifferentiate, migrate, proliferate, change phenotype and secrete ECM.

既往研究证明视网膜色素上皮(retinal pigmentepithelial，RPE)细胞是参与PVR的主要细胞，PVR是视网膜脱离后RPE细胞损伤的一种自我修复过程，是一种过度的眼内创伤修复反应；RPE细胞在正常位置上处于静止状态，而在某些病理条件下，如视网膜裂孔形成和视网膜脱离后，RPE细胞脱离原位，开始去分化、移行、增生、发生表型转化并分泌胶原等ECM，最终在视网膜前后表面和玻璃体内形成具有收缩能力的增生膜，造成牵拉性视网膜脱离。

It was found from the structure-electrochemical studies of cytochrome c that (1) the secondary and tertiary structural changes of cytochrome c are greatly influenced by the reductions of tyrosine residues and iron ions in heme;(2) the reduction reaction dose not induce the configuration transition;(3)α helix, parallel β sheet, antiparallel β sheet and random coil take part in the complex secondary structural transitions;(4) mechanism and parameters about the electroreduction have also been obtained.

在细胞色素c的结构-电化学研究中发现：（1）细胞色素c的二级和三级结构受电场和酪氨酸残基及血红素中Fe的电化学还原的影响，其中酪氨酸残基还原的影响较大；（2）细胞色素c的电化学还原没有发生构型转化现象；（3）细胞色素c参与二级结构变化的构象有α螺旋，平行β折叠，反平行β折叠和无规卷曲；各组份随电位的变化复杂；（4）获得细胞色素c电化学还原的机理和参数

Clear cell carcinomas that may occur in the lower urinary tract include variants of the more common cancers such as prostatic adenocarcinoma and transitional cell carcinoma as well as infrequent carcinomas such as clear cell carcinoma, which is similar to that of mullerian origin and metastatic renal cell carcinoma.8 A benign process that occasionally has been reported to show marked clear cell change is nephrogenic adenoma, a lesion that is considered a benign metaplastic process.3,5,12 Perhaps because of the great histo

透明细胞癌可能发生在较低泌尿系统包括变异更常见的癌症如前列腺腺癌和过渡细胞癌以及罕见的癌如透明细胞癌，它是相似的苗勒管起源和转移性肾细胞癌 18亿美元的良性碾压工艺，偶尔被报告显示标记为透明细胞变化腺瘤，被视为是一种良性病变的化生 process.3，5，12也许因为伟大的历史

Results When the culture medium was supplemented with 0 .05μg/ml sodium selenite,the proliferation of transformed cells was significant ly promoted and the transformation did not change remarkably,when supplemented w ith 0.25μg/ml,the proliferation was promoted but the transformation was inh ibited,and when with 0.75μg/ml and 1.50μg/ml,the proliferation was not pro moted and the transformation was strongly inhibited.Big dose of (1.50μg/ml) sodium selenite m ade the nuclei of the untransformed lymphocytes gather together like a few grape s doing,and even caused them to fuse.

结果 在培养物中添加0.05μg/ml亚硒酸钠能显著促进转化细胞增殖；添加0.25μg/ml可促进转化细胞增殖，但显著抑制细胞转化；添加0.75μg/ml和1.50μg/ml，不仅不能促进细胞增殖，而且强烈抑制细胞转化。1.50μg/ml剂量的亚硒酸钠使非转化淋巴细胞发生葡萄状聚集甚至核融合。

This study is to further investigate the mechanisms of osteoclastic bone resorption induced by IL-1 with established osteoclasts culture and osteoclasts, bone marrow stromal cells co-culture system.

本文利用建立的破骨细胞培养和破骨细胞、骨髓基质细胞共培养体系，在体外进一步研究IL-1诱导破骨细胞性骨吸收的机制，旨在探讨细胞因子在骨质疏松症骨丢失发生中的作用。

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。