端细胞的

The process of EMT is induced in epithelial cells to lose its cell-to-cell adhesion and transform to mesenchymal-like cells.

同时，近端肾小管的纤维母细胞亦经类似 EMT 之机制而转变成纤维原母细胞，此也是造成肾病变的因素。

Toreniafournieri. has a naked embryo sac that protrudes from the micropyle into the cavity between the funiculus and placenta. As embryo sac is mature, the egg cell, the two synergids and about half the central cell are located outside the micropyle.

蓝猪耳在其发育的四核期，胚囊从珠孔端伸出，当胚囊完全成熟时，助细胞、卵细胞和大部分中央细胞均暴露于胚珠组织之外，是研究被子植物受精和胚囊发育的模式植物。

Meanwhile,the development effect,relative molecular weight and mechanical properties of radiopaque polyurethanes with different iodine content were also studied.

利用X-射线映射对不同封端量聚氨酯的显影效果进行评定；利用DSC和TGA对其热性能进行表征，并评估封端反应对聚氨酯热稳定性的影响；利用噻唑蓝比色法测试了材料的细胞毒性；并对具有不同碘含量聚氨酯材料的显影效果、相对分子量及其分布、力学性能进行了对比研究。

In order to avoid prolin residue inhibiting enterokinase cleavage, 9bp of MGF cDNA 5′ end sequence was truncated by primer, then the obtained truncated MGF des(1-3MGF cDNA (321 bp) was subcloned in pET32a vector to construct a prokaryotic recombination expression plasmid.

通过RT-PCR从拉伸刺激的人成骨细胞中克隆MGF cDNA序列，并去除5'端9 bp的序列，使N端缺少对肠激酶(Enterokinase， EK)具有抑制作用的脯氨酸，将截短型MGF des(1-3 MGF cDNA序列克隆入pET32a质粒，构建重组表达质粒。

Proximal dendrites of hippocampal CAI pyramidal neurons receive mainly the inputs from schaffer collateral/associational commissural pathways, whereas the distal dendrites receive mainly the inputs from entorhinal cortex through TA pathways.

由于近端树突接受海马内部侧枝／联合纤维投射的信息，远端树突通过TA通路接受内嗅皮层投射的信息，由此提示，CA1区锥体细胞对来自海马内部和直接来自皮层的信息输入采用了不同的整合方式。

Objective: To examine changes in gene expression profiling of peripheral blood mononuclear cells in type 2 diabetes patients with distal symmetric polyneuropathy as compared to type 2 diabetes patients without distal symmetric polyneuropathy and to healthy controls.

目的：利用基因芯片技术比较2型糖尿病伴有远端对称性多神经病变的患者、2型糖尿病不伴远端对称性多神经病变的患者以及正常个体外周血单个核细胞基因表达谱的差异。

The dense retrogradely labelled cell bodies were found in medial magnocellular nucleus of the anterior ne...

在端脑新纹状体前部的大细胞核内侧部、中部的界面核、尾中部的端脑听区、丘脑uvaeformis核及脑桥蓝斑见到大量逆行标记细胞。

In this study, the DNA fragments coding for amino acids 133～158 of VP1and 20～34 of VP4protein of type Asial FMDV were chemically synthesized and ligated into a tandem repeat 133～158-20～34-133～158. The sequences of signal peptide of Igκ chain and Kozak were fused to the 5'end of this tandem sequence and synthetic oligodeoxynucleotide containing CpG-ISS was fused to downstream of terminal coden of this tandem sequence. And then this long fragment was cloned into the eukaryotic expression plasmid pHook-2, forming a new secreted expression plasmid, named pAS1-E.

在第二章证明了亚洲Ⅰ型口蹄疫病毒VP1蛋白中133～158位氨基酸残基确是一重要B细胞中和抗原表位的基础上，依据第一章获得的口蹄疫病毒亚洲Ⅰ型VP1 cDNA序列及已报道Asial VP4序列，采用真核偏爱密码子化学合成了VP1中编码133～158位氨基酸及VP4中编码20～34位氨基酸这两个抗原表位基因，将其组成133～158-20～34-133～158串联结构，在其5′端加上鼠Igκ链信号肽序列，在翻译调节区加上增强表达的Kozak序列，同时在133～158-20～34-133～158串联结构3'端终止密码子下游加上CpG免疫刺激序列，将这些片段连接后，克隆到真核表达载体pHook-2上，构建成功了DNA疫苗重组表达载体pAS1-E。

In some human cancers telomere length measurement has proved to be of diagnostic and prognostic value.

细胞端粒重复序列的丢失与衰老和肿瘤的发生相关，在人体多种肿瘤的研究中，人们发现端粒长度的测定对诊断及预后判断具有重要价值。

Methods The telomerase activity of Jurkat cells was examined by modified Krupp TRAP assay.

采用改良的Krupp荧光素标记的端粒重复扩增方法检测HHT对Jurkat细胞端粒酶活性的影响。

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。