黄嘌呤

The last part of this article emphasis on the mechanism of cichory extract N2. Hepatic lipase, NO and xanthine oxidase are observed in this aspect, and gene expression of hepatic lipase is also detected.

本部分研究观察了菊苣提取物 N2 对影响脂质代谢的肝脂酶、尿酸代谢的关键酶黄嘌呤氧化酶、一氧化氮的活性和含量，还从分子生物学角度观察了肝脂酶的基因表达。

The enzyme was stable in pH 4.5~7.5 and the optimum temperature was 37℃ The activity of xanthine oxidase remained around 50% when handled 2 hours at 45℃.

结果表明：黄嘌呤氧化酶在pH4.5~7.5的范围内较稳定；反应最适温度为37℃。

During histamine stimulation, NADPH oxidase plays a critical role in generating calcium oscillations, while xanthine oxidase may contribute to, at least in part, the increase of calcium oscillation frequency in posthypoxic PAECs.

NADPH氧化酶在组胺刺激的钙振荡的发生中发挥重要作用；黄嘌呤氧化酶的激活是缺氧引起组胺刺激的钙振荡频率增加的重要原因。

METHODS Using the method of xanthine oxidase, we measured the activity of Mn-SOD in 50 speciments of human brain tumors and 10 normal brain control.

采用黄嘌呤氧化酶法测定50例脑肿瘤患者血清Mn-SOD活性，并做相关性分析。

Objective To investigate the changes of cerebral ultramicrostructure and contents of superoxide dismutase, malondialdehyde and xanthine oxidase, and protective effect of safflor injection in chronic hypoxia-hypercapnia rats.

目的：探讨慢性低氧高二氧化碳大鼠大脑超微结构、超氧化物歧化酶、丙二醇与黄嘌呤氧化酶含量的变化，及红花注射液的保护作用。

LD and SOD are detected each by enzymic method, xanthine oxidase method.

LD检测采用酶法，SOD检测采用黄嘌呤氧化酶法。

Methods Apply xanthine oxidase and third dialdehyde.To determine the serum LPO,SOD,GSH-PX and CAT level in 106 cases of coronary heart disease including 29 cases of acute myocardial infarction,16 cases of coronarism and 61 cases of previously suffered coronary heart disease,and in 31 cases of cerebrovascular disease as well as in 65 cases of healthy persons.

应用黄嘌呤氧化酶法和丙二醛法，对106例冠心病，其中包括29例心肌梗塞，16例心绞痛，61例陈旧性冠心病，31例脑血管病和65例健康人，做血清LPO和SOD，GSH-PX，CAT水平的监测。

To study the changes between SOD activity and LPO content in serum of the patients with cholecystolithiasis before and after operation, the methods of xanthine oxidase and thiobarbituric acid were applied to this study.

为研究胆囊结石患者血清中超氧化物岐化酶活性水平、过氧化脂质含量及其变化规律，应用黄嘌呤氧化酶法和硫代巴比妥酸法测定了48例胆囊结石患者手术前后血清中SOD活性和LPO含量。

It was found that the organic solvent can improve the retention time of disodium inosinate and the acidity and ionic concentration can improve the separating size of chromatogram.

试验发现有机溶剂可以显著改善次黄嘌呤核苷酸二钠盐的出峰时间，酸度和盐离子浓度可以显著改善色谱的分离度。

The hypoxanthine/XO reaction in the DMPO-ESR technique was used to correlate the effect on enzyme inhibition and ROS suppression by these coumarin derivatives, and the results showed that esculetin and 4-methylesculetin were the two most potent agents among the tested compounds.

最后以电子自旋共振法，利用 Hypoxanthine/ Xanthine Oxidase反应体系，产生之O2-自由基，去评估香豆素及其衍生物对於黄嘌呤氧化酶活性抑制和自由基清除的能力的整体表现，结果显示esculetin 和 4-methylesculetin具有最佳的活性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。