反应作用

To elucidate the possible mechanism of differentiation and/or apoptosis in NB4, K562 cells induced by tributyrin, a histone deacetylase inhibitor , the level of acetylated histone H3 was detected by Western blot, p21(superscript WAF1) expression was detected by semi-quantitative RT-PCR.

为了探讨组蛋白去乙酰化酶抑制剂三丁酸甘油酯(tributyrin， TB)诱导NB4、K562白血病细胞分化和凋亡的作用机制，利用Western blot方法及逆转录聚合酶链反应检测TB作用前后NB4、K562细胞组蛋白H3乙酰化水平以及p21(上标 WAF1)表达量的改变。

In this sense, IDA plays dual effects, tridentate chelating to Cu(2) and bridgebetween two Cu(1) andCu(2).3 Metal complexes were selected as the appropriate for the study of cleavage plasmid pBR322DNA by gel electrophoresis technique. The results showed Ni and Mn complexes could cleave effect- ively DNA in the presence of H2O2 at physiological pH and temperature, whereas individual Zn complex could cleave effectively DNA.

通过电泳实验研究了一系列金属配合物与pBR322DNA的作用，发现在Tris-HCl缓冲溶液中，生理条件下，镍、锰配合物在共反应物H_2O_2存在下能够很好的断裂DNA，而Zn配合物单独作用就能够使DNA由ccc型转化为oc和linear型。

Results:Losartan had no cough as a harmful reaction and its actions on depressing blood pressure and uria albumin,improving renal hemodynamics were the same as e...

结果：氯沙坦无咳嗽不良反应发生，在降低血压和尿蛋白，改善肾血流动力学等方面的作用与依那普利相似，且增加肾血流量作用氯沙坦明显优于依那普利（P＜0.05），并可增加血中AngⅡ含量（P＜0.01）。

AngiotensionⅡand endothelin-1 are two important vasoactive peptide,having powerful vasoconstricting and hemodynamic function,except this,both have nonhemodynamic effects as growth factor to induce proliferation,hypertrophy,to stimulate synthesis of matrix proteins,furthermore,also to inhibit matrix degradation, even to mediate inflammation reaction.

血管紧张素Ⅱ(angiotensinⅡ，AngⅡ)和内皮素1(endothelin1，ET-1)是两个重要的血管活性激素，除了血流动力学作用外，还有非血流动力学作用，如促进细胞增生、肥大，刺激细胞外基质的合成并抑制其降解，介导炎症反应。

In solvent and under the action of certain catalyst, anilino methyl siloxane is reacted to obtain solid cage anilino methyl sesquisiloxane octamer acid salt; and through filtering, washing, precipitation and reaction with amine desalting agent, cage anilino methyl sesquisiloxane octamer is finally prepared.

本专利提供了一种笼型八聚苯胺甲基倍半硅氧烷的制备方法，苯胺甲基硅氧烷在一定溶剂和催化剂作用下反应，过滤得到笼型八聚苯胺甲基倍半硅氧烷酸式盐固体，经过洗涤、沉淀，再与胺类脱盐剂作用，最终制得笼型八聚苯胺甲基倍半硅氧烷。

The agglutinating activity could be inhibited by the splitting of lactose and sucrose. The results demonstrated the sugar referred above played an important role in agglutinating reaction.

经糖的专一性抑制实验显示，蔗糖和乳糖对凝集反应有抑制作用，说明这2种糖分子是凝集素在识别和凝集过程中起一定作用的糖分子。

An enzyme that catalyzes the removal and transfer of hydrogen from a substrate in an oxidation-reduction reaction.

脱氢酶一种酶，能在氧化还原反应过程中，对脱去作用物中的氢并转化氢起催化作用

At the same time, the fouling mechanism of membranes given in this thesis can give a reasonable explanation on the change of membrane performance. Our results show that the magnetization of membranes can effectively improve the anti-fouling ability of the PAN- Fe_3O_4 membrane. The obtained result may give insight to the development of new membranes with a good anti-fouling performance in the filtration of blood solution. No chemical bond was found between PAN and Fe_3O_4 in the membrane at room temperature. The addition of Fe_3O_4 can improve the temperatures of dehydrogenated reaction and decomposition of PAN but dot change the glassy transition temperature. The resistance against acid is stronger than the resistance to base for a PAN- Fe_3O_4 membrane.

结果表明在PAN- Fe_3O_4超滤膜制备过程中使用外加磁场作用能有效提高膜的耐污染能力，这一结果为开发适用于血液处理的耐污染超滤膜提供了一种新途径；在PAN- Fe_3O_4超滤膜中，四氧化三铁与PAN在室温下没有形成化学键，也不存在官能团之间的相互作用；添加Fe_3O_4对膜的玻璃化温度没有影响，但能提高PAN环化脱氢反应的温度和分解温度；PAN- Fe_3O_4超滤膜的耐酸性强于耐碱性，在pH值为10以上的溶液中由于水解作用而溶解，使得膜失去使用价值，膜的耐酸性与酸的种类、浓度和氧化性有关。

Furthermore, the theory about denitrifying by oxidation in gas phase and absorption in liquid phase and desulfurizing by absorption and oxidation in liquid phase is deduced.

理论表明，放电等离子体对SO2 的去除有一定作用，但主要取决于水的吸收；NO的去除主要归于发生在气相的氧化反应，水的存在起到了吸收氧化产物的作用。

Using hydrotreated gas oil as solvent, under the conditions of a reaction temperature of 400 C, a hydrogen partial pressure of 10 MPa and a reaction time of 1 h, a portion of coke deposits could be removed yet without the function of hydrogenating coke.

采用溶剂萃取法除去工业失活催化剂上沉积的焦炭和金属的研究结果表明，用四氢呋喃、吡啶和喹啉这3种含杂原子的有机强溶剂常温萃取催化剂，其去除焦炭能力很弱，而且会因这些溶剂的强吸附作用污染催化剂；盐酸洗涤能有效去除催化剂表面的钙、铁沉积层，但不能去除焦炭；低芳香性的加氢瓦斯油在400 C、H2压力为10MPa、反应1h的条件下可部分去除催化剂上的焦炭，但不具备强的氢化焦炭作用；1，2，3，4-四氢化萘因具有供给原子氢的能力，可以有效地氢化和去除催化剂上的焦炭。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。