查询词典 play an important role in

Growth factors play an important role in cell adhesion and proliferation as well as in tissue regeneration.

生长因子在细胞的黏附、增殖和组织的再生过程中发挥着重要的作用。

The adventitia might also play an important role in the formation of cerebral AVM formation. The destruction of collagen in the adventitia might be due to the high level of MMP-9 mRNA.

血管内膜的破坏与大脑AVM形成有关；外膜也参与了脑AVM的形成过程；外膜胶原纤维的破坏与外膜中MMP-9 mRNA高含量呈正相关。

T helper cell subsets play an important role in antimalarial immunoregulation in mice.

但在攻击感染疟原虫后Th2型细胞被提前激活而抑制了Th1型细胞的正常功能，最终仍导致小鼠死亡。

In the experimental tectum, the expression of GFAP in the right SO was higher than the expression of GFAP in the left SO during 1d-60d after after optic nerve damage. The expression of GFAP in the right SO was familiar with the expression of GFAP in the left SO during 85d after optic nerve damage, but the expression of GFAP in SO in the experimental tectum was higher than that in the normal tectum. The result of GFAP expression in the experimental retina and tectum showed that AStrocyte took part in the optic nerve regeneration and it might play an important role in optic nerve regeneration accidents.

在损伤1d后视网膜的神经纤维层和外核层外缘可见较为深的GFAP染色，在损伤3d后视网膜从内网层经内核层至外网层出现稀疏的垂直于视网膜长轴分布的线条状GFAP染色，随时间推移，伤后5d、7d、14d、28d上述染色进一步加深密集，到伤后60d和85d上述染色减弱，阴性对照的视网膜各层未见GFAP阳性染色；(5)正常鲫鱼视顶盖中在SO层内有较浅的黄棕色线条状GFAP染色，在SFGC层

RESULTS: FGFR1-positive chondrocytes were abundant in the maturative layer and hypertrophic layer, but only few FGFR1-positive chondrocytes were found in the proliferative layer. In the control group, the expression of FGFR1 increased from 6-week-old to 10-week-old rats, and then decreased and went stable. In both young and adult group, the expression of FGFR1 in the experimental group was significantly lower at 4, 6 weeks and higher at 8 weeks than that in the control group, especially in the young group (P.05). But no difference was found between the experimental group and the control group at 2 weeks in both groups. CONCLUSION: FGFR1 may play an important role in the remodling of condylar cartilage induced by occlusal disorders.

结果：FGFR1主要表达在大鼠髁突软骨过渡层和肥大层，增殖层很少；正常组大鼠髁突软骨从6周龄到10周龄FGFR1表达逐渐增强，10周龄后降低，并保持在一个稳定水平；成年组和幼年组实验4、6周时FGFR1的表达均显著低于对照组，实验8周时的表达高于对照组(P.05)，幼年组尤为明显，实验2周组与对照组无显著差异。

Among all, deleted in liver cell (DLC-1) gene was found to play an important role in hepatoma in 1998, and after that hypermethylation on the promoter of the DLC-1 gene was found in many other cancers, suggesting that epigenetic modification is another way to control the carcinogenesis. Another gene, Endothelin type B receptor, was found to cause megacolon syndrome by accident while searching the cause of white spot in mouse, and was also found hypermethylation on its promoter in some cancer cells.

在此中，DLC-1基因自从1998年后被发现在肝癌的演化上扮演重要的角色后，在许多其他的癌症上也发现此基因上位於promoter的CpG islands有过度甲基化的现象，推论DLC-1基因的过度甲基化是一种经由epigenetic modification调节细胞癌化的方式。

At last the paper realized the advantages and disadvantages of passive solar building and adnvanced some suggestions in future research. From another point, the paper logged the process of the building of the experimental equipment and the mounting of the measurement equipments that accumulated some operating experimence.Carrying experiments, calculating and analyzing the experimental data for more than 2 years, the paper gained some constructive conclusions. In winter the indoor air temperature and RH are lower than comfort criteria, but people feels very comfortable in the passive solar house. The thermo-circulation formed by Trombe wall play an important role in improving indoor air temperature and RH. Based on the analogy analysis theory, the natural convection heat transfer in the air gap can be treated as superposition of two natural convection heat transfer processes occurring over isolated isothermal vertical flat plate, in this case namely the massive wall and glazing. Two empirical formulas for Q and Nu are obtained. The investigation shows that the optimal time to open the damper should comply with the period that the thermo-circulation happens which can be controlled by thermal response characteristics of Trombe wall surface temperature and air temperature in the air gap.

经过两年多的实测和计算，根据传热学、流体力学、统计学等学科的基础理论，对大量数据进行整理归类、分析讨论，主要得到如下结论：(1)冬季，含有特朗贝墙体的被动式太阳房室内热湿环境较舒适性标准偏低，但人体感觉比较舒适，特朗贝墙体形成的热循环通风在调节室内温度和相对湿度方面起到很大的作用；(2)特朗贝墙体空气间层自然对流可以看作是两个等温独立大平板的自然对流换热过程的叠加，通过与大平板自然对流理论类比获得了计算热循环过程中对流换热量的经验公式；(3)特朗贝墙体通风口的启闭可以根据玻璃幕墙内壁面温度、蓄热墙体外壁面温度和空气间层进出口空气温度之间的关系来进行控制，从而有效地阻挡冬季冷循环的发生；(4)夏季，如没有有效的通风降温措施，被动式太阳房内会产生明显的过热。

objective:to investigate the expression and significance of rb in the occurrence, development and regression of infantile hemangiomas.methods:the expression of rb was examined in the proliferative stage and catagen of human hemangiomas and normal skin tissues by using immunohistochemical technique.immunohistochemical technique for factorⅷ-related antigen was used to prove that the cells which expressed rb were endothelium.image analysis system was applied to measure the expression level of rb at different stages of hemangiomas and in normal skin tissues.results:the expression of rb was significantly lower in proliferating hemangiomas than that in involuting hemangomas(p.05).conclusion:rb might play an important role in the regression of human hemangioma endothelial cells and anti-angiogenesis.

目的：探讨rb蛋白在血管瘤发生、发展及退化过程中的表达状况及其意义。方法：采用免疫组织化学方法检测人皮肤血管瘤增生期、退化期及正常皮肤组织中rb的表达水平，并结合第ⅷ因子相关抗原的免疫组织化学染色证实表达rb的细胞是血管内皮细胞。利用计算机图像分析技术测量不同时期血管瘤组织和正常皮肤组织rb表达的积分光密度和面积。结果：增生期血管瘤内皮细胞rb表达水平低于退化期，差异有显著性（p.05），退化期血管瘤内皮细胞rb表达水平与正常皮肤组织相比，差异有显著性（p.05）。结论：rb通过抑制血管瘤内皮细胞增殖和血管生成而在血管瘤的退化过程中起重要作用。

The summary results are below:1. GUS expression under the driving of the BjCHI1 promoter (-1060/+17) was essentially undetectable in the young seedlings under normal growth conditions. GUS activity was first detected in the stigma of young flowers, peaked in the young siliques, and decreased when the siliques became older. No GUS expression was found in the mature siliques, seeds or root.2. The BjCHI1 promoter (-1060/+17) was inducible by NaCl, PEG, wounding and MeJA treatments. High levels of GUS expression were detected in the transgenic tobacco and Arabidopsis plants after wounding, NaCl, PEG, and MeJA treatment, indicating that the BjCHI1 promoter responses to both biotic and abiotic stresses.3. RT-PCR analysis confirmed that the expression of the BjCHI1 gene in B. juncea was inducible by PEG and NaCl.4. The transcription start site was determined by 5′-RACE, and was located at the 17th nucleotide upstream of the translation initiation codon of the BjCHI1 gene.5. A -805/+17 promoter fragment was enough to response to wounding and MeJA induction, which was proved in transgenic tobacco and Arabidopsis plants. The 397 bp region between -805 and -409 of the BjCHI1 promoter contains a cis-acting element that is essential for the wounding and MeJA inducibility.6. The -695/-620 region was necessary but not sufficient to confer MeJA-responsive expression. A T/G-box locates in -353 play an important role in the expression of the BjCHI1 gene in response to MeJA treatment. The 76 bp region is coupled with the T/G-box to confer full MeJA-inducible transcription of the BjCHI1 gene.

主要结果如下：1、利用转基因拟南芥植株分析表明，正常生长条件下，BjCHI1启动子(-1060/+17)驱动GUS基因主要在花柱中表达，幼嫩的荚也有表达，并随着果荚的成熟而减弱，成熟的果荚、种子和根没有显示GUS活性。2、BjCHI1启动子(-1060/+17)能驱动GUS基因在转基因烟草和拟南芥中响应伤害的诱导，转基因拟南芥的分析还证明BjCHI1启动子也受MeJA、NaCl和PEG的诱导，证明BjCHI1启动子是一个伤害、MeJA、NaCl和PEG等生物和非生物因素诱导启动子。3、RT-PCR进一步证明芥菜中BjCHI1基因也受NaCl和PEG的诱导表达。4、5′-RACE法鉴定了BjCHI1启动子的转录起始位点，位于翻译起始位点ATG上游第17个碱基A.5、转基因烟草和拟南芥分析证明，-805/+17的启动子片段足以响应伤害和MeJA的诱导，-805和-409之间397 bp的启动子片段含有对伤害和MeJA诱导必要的元件。6、本明烟叶片瞬时表达系统分析证明，一段76 bp的序列(-695/-620)对BjCHI1启动子响应MeJA的诱导是必要的，但不足以响应MeJA的诱导，位于-353的T/G-box也参与MeJA的诱导。76 bp的序列(-695/-620)与T/G-box协同起作用，赋予BjCHI1启动子MeJA诱导性。

Asian citrus psyllids and in the Citrus Aphis citricola both the phloem feeding insects, but insect feeding behavior of two significant differences, in addition to two kinds of insects share a common EPG wave (A wave, B wave, C wave, E1 wave, E2 wave, G wave), the wave of Aphis citricola appeared in the path of many pd wave, pd wave is aphids in plant cells in the epidermis during exploratory puncture the cell membrane caused by feeding, which kind of contact information on the intracellular selection in the aphid host plant play an important role in the process.

求中文翻英文翻译，很急，谢谢亚洲柑桔木虱和绣线菊蚜在沙田柚上都为韧皮部取食性昆虫，然而，两种昆虫的取食行为有明显差异，除了两种昆虫拥有共同的EPG波形（A波、B波、C波、E1波、E2波、G波）外，绣线菊蚜在路径波中出现很多pd波，pd 波是蚜虫在植物表皮层细胞的试探性取食时刺破细胞膜而产生的，这种对胞内信息的接触在蚜虫选择宿主植物的过程中起了重要作用。

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。