表达性

Results With the expression in normal salivary gland as a standard, low C-erbB-2 mRNA expression was seen in adenolymphoma, basal cell adenoma. However, various degrees of over-expression of C-erbB-2 oncogene mRNA were detected in pleomorphic adenoma, mucoepidermoid carcinoma,acinic cell carcinoma ,adenoid cystic carcinoma ,papillary cystic carcinoma,and myoethelial cell carcinoma.

结果 正常涎腺和涎腺肿瘤中发现不同程度C-erbB-2mRNA的表达，以正常涎腺组织的表达水平为基准，在腺淋巴瘤、基底细胞腺瘤呈现低表达、无表达或与正常涎腺组织表达水平相似，多形性腺瘤、粘液表皮样癌、腺泡细胞癌、腺样囊性癌、乳头状囊腺癌和肌上皮癌则呈现不同程度的过表达。

Results Expression of CYPⅡE1 in rat nonalcoholic steatosis by high fat diet wasprominent in hepatic acinar zone...

结论非酒精性脂肪肝肝细胞色素P450ⅡE1在腺泡3区的表达增强，并呈弥散性的分布，与酒精性脂肪肝的表达相似，并可能与脂质过氧化反应有关。

After collecting the bacterial cells and breaking the cell by means of ultrasonic, the inclusion bodieswere extracted. The extracted products were denatured with 8 mol/L urea and purified through Ni-NTAcolumn. The purified products were renatured by dialyzation, and then were analyzed by SDS-PAGE.

在优化条件下诱导重组菌表达，收集菌体经超声波破碎和裂解后提取不溶性包涵体，以8mol／L尿素处理包涵体提取物并进行Ni-NTA亲和层析纯化，纯化表达产物经透析复性后以SDS-PAGE分析其复性效果。

Methods Nuclear β-catenin expression was detected by immunohistochemistry in 77 lesions with desmoid-type fibromatosis and 171 other spindle cell lesions, including superficial fibrmoatosis (n=18), nodular fasciitis (n=36), keloid (n=16), scar (n=10), granulation tissue (n=9), synovial sarcoma (n=38), neufibroma (n=13), solitary fibrous tumor (n=12), gastrointestinal stromal tumor (n=10), low-grade myxofibrosarcoma (n=3), low-grade fibromyxoid sarcoma (n=3), and smooth muscle tumor (n=10). In addition, the immunohistochemical expressions of ER-α, ER-β and Ki-67 were examined in all of the lesions with desmoid-type fibromatosis. The nuclear immunohistochemical staining for nuclear βcatenin and ER-β was graded as high level (≥25% of cells), low level (5%-25%) or none.

采用免疫组织化学染色法检测77例韧带样型纤维瘤病和171例其它良、恶性梭形细胞病变（包括结节性筋膜炎36例、浅部纤维瘤病11例、瘢痕疙瘩16例、增生性瘢痕10例、肉芽组织9例、滑膜肉瘤38例、神经纤维瘤13例、孤立性纤维性肿瘤12例、胃肠间质肿瘤10例、低度恶性黏液纤维肉瘤3例、低度恶性纤维黏液样肉瘤3例及平滑肌肿瘤10例）组织中β-catenin核阳性的表达，同时检测韧带样型纤维瘤病中ER-α、ER-β和Ki-67的表达。

PCNA labeling index in H. pylori positive patients was significantly higher than negative patients in all the chronic gastritis (P.01); from normal controls to gastric carcinoma , there are all significant difference in PCNA labeling index(P .05). Expression of Bcl-2 protein In gastratrophia and gastric carcinoma were significant higher than that in normal controls (P.05), and there were significant difference between H.

在慢性胃炎的各组中HP阳性的病人PCNA LI％均高于HP阴性的病人(P.01)，同时各组间PCNA LI％也有显著性差(P.01)：胃癌组和慢性萎缩性胃炎组的Bcl-2蛋白阳性表达率均显著高于正常对照组(P.05)，同时组内HP阳性病人与阴性病人间Bcl-2蛋白表达也均有显著性差异(P.05)。

Gene sequence was highly homologic with a gene encoding aβ- subunit of ATP synthetase and an EST originating from a cDNA in relation to water deficit stress, which both were closely associated with the protein functioning in stress resistance and ion transportation. The results suggested that No. 1 gene sequence was involved in stress resistance of apple rootstock. No. 2 gene sequence had high homology with a gene encoding a serine/ threonine kinase protein, indicating perhaps it was a new gene encoding the serine/ threonine kinase protein in apple rootstock. The gene sequences of A1 and A2 were highly homologic with a gene encoding aβsubunit of ATP synthetase.

对得到的差异片断进行回收、测序，通过BLAST和其它植物比对，发现Ⅰ号序列与一条编码ATP合酶β亚基基因和一条水分亏缺胁迫cDNA克隆基因EST的同源性非常高，该序列编码涉及到了抗性表达、离子转运基因，可能参与了植物抗性表达，说明获得的基因序列应是与苹果砧木抗性相关的基因；Ⅱ序列与一条serine/threonine kinase蛋白激酶的蛋白序列同源性比较高，核酸比对较低，可能是具有丝氨酸/苏氨酸蛋白激酶功能的新基因。A1、A2序列与一条编码ATP合酶β亚基基因的同源性较高。

A new eucaryotic expression system of recombinant PoIFN-γ was also constructed so that the denaturalization and refolding process is avoided. The target gene coding PoIFN-γ2 mature protein was subcloned into expression vector, transformed into Pichia pastoris, The His〓 Mut〓 phenotype transformants were screened, fermented in flasks and induced by 1％methanol. The expressed product in culture solution and sedimentation have antiviral activity on VSV and immunological activity proved by indirected immunofluorescence antibody and Dot blotting assay.

为了构建可对表达产物修饰、加工的真核表达系统，使表达产物具有自然干扰素的活性，无需变性、复性，我们将PoIFN-γ2成熟蛋白基因连接酵母整合表达载体，电转化毕赤酵母，筛选了His〓Mut〓表型转化子，摇瓶培养，1％甲醇诱导表达，培养上清和菌体裂解上清均有抗VSV病毒活性，经间接免疫荧光抗体检测和Dot blotting鉴定，重组酵母菌诱导表达产物具有免疫活性。

To reveal chemokines mediating the celiac metastasis of epithelial ovarian carcinoma by way of investigating the chemokine receptor expressions in serous epithelial ovarian carcinoma cell lines and tissues, and the corresponding ligand expressions in membrana abdominis.

本研究通过分析浆液性上皮性卵巢癌细胞系和组织趋化因子受体的表达，及腹膜间皮细胞相应配体的表达，以揭示趋化因子介导上皮性卵巢癌腹腔内转移机制。

Opportunistically expressed (usually at the basal levels of transcription), but still permit the continued expression of genes that are regulated by strong promoters/enhancers (such as housing-keeping gene), the expresison of these genes might play a key role in the embryonic development; 5 The sum of these two opposing processes-activation and repression-would dictate the final pattern of gene expression that manifests itself as a dramatic reprogramming of gene expression during the maternal-to-zygotic transition and support further embryonic development.

这些基因的表达对于胚胎的后继发育可能是至关重要的；5）通过胚胎基因表达的激活与抑制：这两个作用相反的机制依不同时间顺序协同作用于胚胎基因，从而在指导胚胎发育的控制权由母源性表达产物移交到胚胎特异的基因表达产物的过程中&再程序化&胚胎基因的表达，形成特定的表达模式，以支持胚胎的后继发育。

To express chicken osteoprotegerin in Pichia pastoris and determine its inhibitive effects on mature osteoclastic bone resorptive function in vitro. The chOPG cDNA encoding for 382 amino acid without signal peptice was subcloned into Pichia pastoris expression vector pPICZα-A. The constructed plasmid was transformed into yeast X-33 by electroporation. The recombinant transformants were selected by Zeocin. Induced by the addition of methanol every 24 hours, the product analyzed by SDS-PAGE was sized about 43kDa and 53kDa at a yield of 200mg per litter of culture. The result of Western blotting indicated that the recombinant protein had specific antigenicity mainly owing to heterogeneous glycosylation.

为了在毕赤酵母中分泌表达鸡骨保护素（osteoprotegerin，OPG），采用DNA重组技术将chOPG成熟肽cDNA片段插入毕赤酵母表达载体pPICZα-A中，以电穿孔法转化酵母X-33，用Zeocin 平板筛选重组子，经甲醇诱导表达后， SDS-PAGE 和免疫印迹分析表达产物，由于糖基化不同，表达产物有两种，其相对分子量分别为43kDa和53kDa，表达量约为200mg/L，经Western印迹验证，有较好的抗原性。

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。