黄嘌呤

采用黄嘌呤氧化法测定SOD活力。

Assay activity of SOD by the measuring xanthine oxidase . 4 .

方法：采用黄嘌呤氧化酶法测定血清中SOD的水平。

Method s : SOD content in serum was determined with xanthine oxidase .

次黄嘌呤和黄嘌呤与卤化镍配合物的IR光谱特征

Nickel Halide Complexes with Hypoxanthine and Xanthine by IR Spectrum

结果通过两种方法的比较，认为黄嘌呤氧化酶法是种比较好的SOD测活方法。

Results Xanthinoxidase method is considered to be a better method in the test .

LD检测采用酶法，SOD检测采用黄嘌呤氧化酶法。

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

NO采用硝酸还原酶法测定：SOD采用黄嘌呤氧化酶法测定SOD活力。

Adopt nitric acid reductase method to examine NO content and xanthine oxidase method to examine SOD activity .

比色法测定胞浆内SOD活力（黄嘌呤氧化酶法）、GSH和MDA。

Colorimetric analysis was used to determine SOD activity , GSH and MDA level in cytoplasm .

采用50%Ⅲ度犬烧伤延迟补液模型，以黄嘌呤氧化酶法观察了血浆SOD变化，并以硫代巴比妥酸法测定了血浆MDA含量。

The plasma SOD and MDA content were determined in 50 % ⅲ° burn dogs with delayed fluid replacement .

结果：在黄嘌呤氧化酶法反应体系中，SOD灭活后依然能够检测到SOD比活力值。

Results : In xanthine oxidase method , the specific activity of SOD still could be detected although SOD was inactivated .

结果：脐血丙二醛与黄嘌呤氧化酶、脐血气pH、氧分压、二氧化碳分压、碱剩余、Apgar5分钟评分以及胎龄等各项指标有显著的相关性。

Results : Highly significant correlations were observed between malondialdehyde and xanthine oxidase umbilical pH Pco2 Po2 base excess gestational age and Apgar score at 5 min.

方法用反相蒸发法制备SOD脂质体，采用黄嘌呤氧化酶法检测SOD活力，静脉注射给药后，测定大鼠血中SOD含量变化和不同组织中SOD含量变化。

Methods The liposomes were prepared by reverse phase evaporation method . The activity of SOD was assayed by method of xanthine oxidase .

目的建立适用于高通量筛选的黄嘌呤氧化酶（XanthineOxidase，XO）抑制剂筛选模型，并以此模型进行XO抑制剂筛选。

OBJECTIVE To establish a high-throughput assay for xanthine oxidase inhibitor screening .

于培养第21d采用黄嘌呤氧化酶法测定培养液中SOD含量，用TBA法测定MDA含量。

The contents of SOD and MDA in culture fluid were determined on the 21st day .

芬太尼对C6胶质瘤细胞黄嘌呤氧化还原酶基因表达的影响

Effect of fentanyl on gene expression of xanthine hydrogenase / xanthine oxidase in C6 glioma

茶碱为甲基黄嘌呤衍生物，其口服缓释制剂常用于COPD的长期治疗。

Theophylline for methyl xanthine derivatives , and its oral sustained-release preparations are commonly used in long-term treatment of COPD .

目的通过测定慢性乙型肝炎患者血清中的黄嘌呤氧化酶和维生素E水平，旨在揭示慢性乙型肝炎患者体内氧化及抗氧化的失衡情况，以指导、协助慢性乙型肝炎的临床治疗。

Objective : This experiment mainly investigate changes of antioxidation ability in patients with chronic hepatitis B , through measuring xanthine oxidase and vitamin E in the serum .

治疗组与对照组治疗后黄嘌呤氧化酶水平较治疗前均明显下降（P0.05）。

The treatment group and control group after treatment , the yellow purine oxidase level is before treatment are decreased obviously ( P 0.05 ) .

方法：采用小平台水环境法（flowerpot）制作大鼠睡眠剥夺模型，以黄嘌呤氧化酶法测定睡眠剥夺后大鼠额叶、海马、脑干和下丘脑SOD含量变化，并观察黄芪干预对SOD活性的影响。

Methods : SOD activities in frontal lobe , hippocampus , midbrain and hypothalamus of SD rats after sleep deprivation by flower pot were assayed .

以化学发光法测定了①黄嘌呤－黄嘌呤氧化酶及碱性二甲亚砜二体系产生的O2；

Chemiluminescence method was used to measure ① O2 produced by xanthine-xanthine oxidase system and alkaline dimethyl sulfoxide ;

鲁米诺购自Sigma公司。抗氧化活性试剂用黄嘌呤氧化酶（Sigma公司）。

Methyl thiazolyl tetrazolium ( MTT ), luminal and anti-oxidative activity reagent xanthine oxidase were all from Sigma Company .

在培养基中加入黄嘌呤－黄嘌呤氧化酶（X－XOD）和丝裂霉素C（MMC），损伤心肌细胞以及用缺氧－复氧的方法造成心肌细胞损伤。

Damage was induced in the cardiomyocytes with Xanthine - Xanthine oxidase ( X-XOD ), mitomycin-C ( MMC ), and hypoxia-reoxygenation .

方法：选取原发性高血压患者30例，无高血压健康人28例，分别用硝酸还原酶法、硫代巴比妥酸法及黄嘌呤氧化酶法检测NO、SOD、MDA含量。

Methods : The serum content of NO , MDA and SOD were measured respectively by nitrate reductase , thiobarbituric acid and xanthine oxidase methods .

采用黄嘌呤氧化酶法测定红细胞和肝匀浆SOD活力，以硫代巴比妥酸法测定血清和肝匀浆MDA含量。

SOD activities in RBC and liver were measured by xanthine oxidase method . Serum and hepatic MDA contents were assayed according to thiobarbituric acid method .

采用黄嘌呤氧化酶法和硫代巴比妥（TBA）法检测颗粒细胞的SOD活性和MDA含量。

The SOD activity and the MDA level in granulosa cells were measured by the methods of zanthine hydrocarbonylation and thio-malonylurea . 4 .

方法：光镜下观察组织形态学变化；NO采用硝酸还原酶法测定：SOD采用黄嘌呤氧化酶法测定SOD活力。

Methods : To observe changes of pathology by microscope ; adopt nitric acid reductase method to examine NO content and xanthine oxidase method to examine SOD activity .

NADH使得次黄嘌呤黄嘌呤氧化酶体系和Fe++H2O2体系的ESR信号明显减弱甚至消失；

ESR spectrum of hypoxanthine-xanthine oxidase and Fe + + & H 2O 2 system were significantly reduced or disappear by NADH .

次黄嘌呤黄嘌呤氧化酶（HXXO）是经典的产自由基体系。

Hypoxanthine - xanthine oxidase ( HX-XO ) is a typical system for generating free radicals .

目的考察黄嘌呤氧化酶（XanthineOxidase）在自发性高血压大鼠（SHR）血管舒缩及内皮功能障碍中的作用。

Objective To investigate the role of xanthine oxidase in blood vessel contractility , endothelial dysfunction in spontaneously hypertensive rats ( SHR ) .

方法以spcA1细胞为对象，采用MTT法研究甲基黄嘌呤类药物&CAF及其与PBT联合应用对DDP的体外细胞毒作用的影响。

Methods The enhancing effect of combination of caffeine and phenobarbital on the cytotoxicity of DDP on SPC A 1 was detected by MTT assay .

结果：大鼠气道滴入黄嘌呤和黄嘌呤氧化酶24h后，PaO2和胸肺顺应性显著下降；

RESULTS : P aO 2 and lung-thorax compliance measured after intratracheal instillation of xanthine and xanthine oxidase were significantly reduced .