黄嘌呤的

Based on the previous literatures, the following major innovation works were carried out in this dissertation:(1) The derivatization reaction conditions of ephedrine and pseudoephedrine with sensitive derivation reagent in aqueous system were studied and two new methods were developed for the assay of them by microemulsion electrokinetic chromatography and micellar electrokinetic chromatography with LIF detection. The sensitivity and analysis times were greatly improved compared with the previous reports;(2) A new method of CZE with indirect LIF detection was developed for the simultaneous determination of six coumarin compounds (esculin, esculetin, isofraxidin, genistein, naringin and sophoricoside) with fluorescein as the probe. The proposed method enlarges the application range of LIF detector, and provides new approach for the analysis of certain compounds difficult to derivatize;(3) Based on the above research, an MEKC with indirect LIF detection method for the simultaneous determination of adenine and guanine in DNA extracts from fungus, maize and soybean was established;(4) A new method for the investigation of the complexes formed between human serum albumin and ampicillin sodium under the simulated physiology conditions using laser light scattering technique was developed.

该论文在综述前人工作的基础上，开展了如下未见文献报道的创新性的研究工作：(1)使用灵敏的衍生试剂对麻黄碱和伪麻黄碱在水体系中的衍生反应条件进行了系统研究，建立了微乳电动色谱-激光诱导荧光检测法和胶束电动色谱—激光诱导荧光检测法测定麻黄碱和伪麻黄碱的灵敏分析新方法，与以前的报道相比，灵敏度和分析时间均有很大改善；(2)使用荧光素钠作为背景荧光试剂，建立了同时分析测定六种黄酮类化合物(秦皮甲素、秦皮乙素、异秦皮定、染料木素、柚皮苷和槐角苷)的毛细管区带电泳—间接激光诱导荧光检测新方法，扩大了激光诱导荧光检测的应用范围，对难衍生化合物的分离分析提供了一种新思路和新途径；(3)以荧光素钠作为背景荧光试剂，建立了一种用于同时测定食品提取DNA中的腺嘌呤和鸟嘌呤含量的胶束电动色谱—间接激光诱导荧光检测新方法；(4)用动态和静态激光散射法研究了模拟生理条件下人血清白蛋白与氨比西林钠盐相互作用所形成的复合物，为药物分子与蛋白质的相互作用、药代动力学等的研究提供了一种新思路。

And velvet in hypoxanthine, urine Caledonia acridine and substances such as phospholipids can inhibit the function of MAO activity; at the same time, deer horn and through the enhancement of superoxide dismutase activity and inhibited lipid peroxidation in the role, you can improve body's antioxidant capacity.

而鹿茸中的次黄嘌呤、尿喀啶和磷脂类等物质具有抑制MAO活性的功能；同时，鹿茸通过增强超氧化物歧化酶的活性和抑制脂质过氧化反应的作用，可以提高机体的抗氧化能力。

Objective:To study the inhibition of xanthine oxidase by renierol extracted from South China Sea sponge and study the influence of renierol on hyperuricemia in mice.

目的：本实验的目的是探讨中国南海海绵提取物renierol对黄嘌呤氧化酶的抑制作用及对小鼠高尿酸血症的影响。

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。

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。

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。

After it gets pasteurized all the valuable enzymes in milk are destroyed (lactase for the assimilation of lactose; galactase for the assimilation of galactose; phosphatase for the assimilation of calcium).

但是当我们将脂肪打散成很小的例子时，许多人相信同时会产生一种化学物质称为—黄嘌呤氧化酶这是均质化的牛奶被认为容易造成癌症的原因。

The results are in good agreement with available experimental results. The entropy effect on the Gibbs free energies of 6-thioxanthine base is very small and there is little significance for the tautomeric equilibria of the base.

计算结果同已有实验结果一致。6-硫代黄嘌呤异构化的熵效应小，对互变异构平衡几乎没有显著的影响，而焓变对互变异构产生了主要的影响。

Methods C3b sensitized yeast cells and C3b unsensitized yeast cells were used to detect C3b receptors and immune complex on red cells,method of xanthine oxidase was applied to detect SOD activity in red cells.

实验利用低碘饲料和碘化钾去离子水复制了不同碘营养状态的大鼠，采用C3b致敏和未致敏的酵母菌及黄嘌呤氧化酶法分别检测红细胞膜上的C3b受体、免疫复合物及红细胞内SOD的活性。

Three kinds of fluorescence polymer with the structure of acridine yellow were synthesized and the sensor for measuring nucleic acid was also fabricated.

论文第三部分开展了以荧光高分子为敏感试剂的新型光化学传感器载体研究，合成了N，N-二甲氨基对苯甲醛缩醛类聚合物，考察了苯环上不同取代基对荧光性能的影响，研究了该类敏感膜对乳酸、尿嘧啶、胸腺嘧啶和腺嘌呤的响应性能；合成了三种具有吖啶黄结构的荧光高分子，制成了测定核酸的传感器。

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。