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Progresses on reactions of NO, CAN, and hydrazone Reactions of NO with olefines, phenols, amines, arylhydrazines, Schiff bases and nucleosides are firstly reviewed.

本论文主要研究了一氧化氮及硝酸铈铵与简单醛酮腙、α，β-不饱和酮腙的反应，全文共分五个部分： 1、一氧化氮、硝酸铈铵及腙的反应研究首先对具有特殊生物活性的NO与烯、酚、胺、肼、Schiff碱、核酸碱基等有机物的反应做了全面的总结。

Paraphrase: It was an evening just as normal as other evenings when a car coming in the other direction was no longer manageable, broke through the guard rail and hit two other cars before hitting violently against his car front to front.

这是一个含有 when 引导的定语从句的复合句。句中 no 放在一个形容词的比较级前强调某事物的程度、大小或范围，有时用来表示惊讶、羡慕等情绪。no+比较级+than 结构表示&不比…更&，强调两者都不行。而 not +比较级+than 结构则表示&不如&。

There are, however, no wide-accepted molecular parameters taken as a reference and no precise γ and A_D obtained simultaneously so far.

本论文报道我们获得的自然丰度下N~(16)O的中红外LMR光谱，并采用最新的联系各同位素分子参数的标度函数将所有已发表的光谱数据和我们测量的实验数据实现统一的标识分析，通过对所有数据的完整一体的最小二乘拟合，得到了迄今为止最完备、最精确的~mN~nO(m=14，15；n=16，17，18)系列分子的结构参数，这些参数的精度与文献结果相比提高了1-2个量级，其中许多参数都是首次获得的。

Many studies have been accomplished byvarious kinds of spectroscopic techniques with some important molecularparameters determined. There are, however, no wide-accepted molecular parameterstaken as a reference and no precise 〓 and 〓 obtained simultaneously so far.

人们运用各种光谱技术对NO在各波段的光谱进行了大量的研究，获得了一些重要的分子结构参数，但却没有一组公认准确统一的分子参数可供使用，也不能同时获得分子参数〓和〓。

Furthermore, the effect of single electron transfer on the dissociation of N-NO bond was also investigated.

此类化合物N-NO键的与〓差别较大，说明它们是储NO分子的好的模型化合物。

The results showed that (1) all the arteries tested had tachyphylaxis to peptidergic agonists;(2) the desensitization of the arteries tested to catecholamines was uneasy except BA;(3) the desensitizations to AⅡ, AVP and PE were homologous;(4) the endothelium-EDRF -cGMP pathway had no contribution to the tachyphylaxis of PA to AⅡ and AVP;(5) membrane receptor cycling (internaliation and re-insertion) contributed only in part to homologous desensitization;(6) there was no change in the function of voltage-dependent Ca〓 channel during desensitization to AⅡ and AVP;(7) some changes in G protein occurred during homologous desensitization;(8) the most surprising finding was that the caudal arterial smooth muscle of stroke-prone spontaneously hypertensive rat showed tachyphylaxis to α〓-adrenoceptor agonist PE, while the tachyphylaxis of pulmonary artery of SHR was not changed compared with that of Wistar rat.

脱敏是消除效应的一种有效方式。因此，研究不同血管对不同激动剂脱敏的差异及阐明脱敏的机制，有助于阐明血管活动个性化的机制。研究表明：血管对肽类激动剂的脱敏方式为快速脱敏，而对儿茶酚胺类激动剂不易脱敏；血管对肽类激动剂和儿茶酚胺类激动剂表现为同源脱敏；内皮-NO-cGMP通路不参与肺动脉对AⅡ和AVP的快速脱敏；用PAO抑制膜受体的内在化只能短暂抑制脱敏的发展，提示用膜受体数目的下调说不能完全解释同源脱敏；血管对AⅡ和AVP脱敏后VSMC细胞膜电压依赖性钙通道功能无改变；CA对AVP脱敏后GTPγS的量-效曲线下移，说明有G蛋白的变化，但这种变化并非G蛋白的亲和性改变；SHRsp之CA平滑肌对AⅡ和AVP的快速脱敏并未减弱，但对PE却表现为快速脱敏，这是我们首次发现的一个非常有趣的现象。

Thereafter, both NO content and NOS activity of testis homogenates were increased.

结果 与对照组比较，糖尿病组血清NO含量升高，NOS活性先升后降；睾丸组织在诱模后NO含量下降，而NOS活性变化不明显，随后两者均呈升高趋势。

NOS also reflect the generation of NO, NOS was measured by a method which the oxidation of oxyhaemoglobin to methaemoglobin by NO is monitored spectrophotometrically. The absorption difference between 401 and 421nm was continuously monitored with a dual-wavelength recording spectrophotometer.

由NOS催化生成的NO与氧合血红蛋白反应生成高铁血红蛋白，反应2秒钟完成同时出现A〓和A〓吸光度的变化，测定该变化，根据此时高铁血红蛋白的摩尔吸光系数即可计算出NOS的比活性。

The free radicals in liver tissue inhibited the synthesis of NO in hepatic injury.

结果 大鼠注射L-Arg后，NO的合成增多，转氨酶及肝组织损伤程度明显降低，注射L-NNA组大鼠肝损伤程度加重，肝组织自由基的测定表明，抑制肝损伤大鼠NO合成，肝组织LPO含量增高而SOD，GSPHX活性降低，SOD，GSHPX协同作用可清除体内自由基。

Further study showed that ryanodine mediated CICR contributed greatly to the secondary NO elevation induced by BK treatment.

同时，缓激肽刺激后，在C6胶质瘤细胞内存在NO的持续升高，且NO是继发于细胞内尼诺丁受体介导的CICR之后。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。