超氧阴离子

目的与方法：采用化学发光法研究富硒螺旋藻提取液、硒藻蓝蛋白、硒藻多糖、亚硒酸钠对超氧阴离子（O2？）

Objective and Methods : The scavenging effects of the extracts , phycocyanin and polysaccharose from Spirulina platensis ( S.P ) or from selenium enriched S.P ( Se-S.P ), and sodium _ selenite on superoxide anions ( O2 ? )

化学发光法和电子自旋共振（ESR）捕集技术检测青紫薯色素对超氧阴离子（O2-）、羟自由基（OH.）、过氧化亚硝基（ONOO-）和脂类自由基的清除作用。

The scavenging properties of anthocyanin from Ipomoea batatas on superoxide anions ( O ~ - _2 ), hydroxyl radical ( OH ~ ·), peroxynitrite ( ONOO ~ - ) and free radicals of lipids were determined with chemiluminescence and electron spin resonance ( ESR ) techniques .

肝细胞的超氧阴离子自由基（O－2·）、羟自由基（·OH）的产生量明显增加。

The production of hydroxy free radicals and superoxide radicals were elevated obviously .

SOD酶生物传感器筛选清除超氧阴离子自由基的活性物

Superoxide dismutase biosensor for screening substances possessing scavenging superoxide anion activity

功能化基团对C（60）-β-丙氨酸衍生物清除超氧阴离子自由基O2~-·能力的影响

Effect of Functional Groups on the Activity of Water-soluble β - Alanine C_ ( 60 ) Derivatives for Superoxide Anion Radical Scavenging

目的：研究槲皮素、芦丁、维生素C（VC）、维生素E（VE）对超氧阴离子自由基的清除作用。

OBJECTIVE : To investigate the anti superoxide anion radical effect of quercetin , rutin , VC , VE .

方法：细胞色素C还原法测定3种肾上腺素能药物对3种刺激剂介导的嗜中性白细胞释放超氧阴离子量。

Methods : Superoxide anion generation in human neutrophils stimulated by 3 β - adrenergic agents was determined by using cytochrome C reduction assay .

高等植物光系统Ⅱ中强光照射产生超氧阴离子自由基的ESR探索

ESR Studies on the Superoxide Radicals Generated in Photosystem ⅱ of Higher Plant

水溶性C（60）-β丙氨酸衍生物清除超氧阴离子自由基O2~-·及对小鼠胸腺细胞生长影响的研究

Studies on Superoxide Radical Scavenging Activity of Water-soluble β - Alanine C_ ( 60 ) Adducts and It ′ s Effect on the Growth of Mouse Thymus Cell

进一步的实验表明超声降解过程中H2O2的分解产物主要是超氧阴离子，而超声在此过程中主要起到了保持催化剂颗粒分散的机械作用。

Further experiments indicated that superoxide anion was the main decomposition product of H2O2 .

活性氧过多如超氧阴离子、过氧化氢，会对DNA造成损伤而使细胞凋亡。

Excess in reactive oxygen species , such as superoxide anion radical or hydrogen peroxide , has harmful effects on DNA which may lead to cell apoptosis .

芦荟中芦荟苷清除超氧阴离子自由基的ESR研究

ESR studies on the eliminating effect on the superoxide anion free radical of aloin in Aloe

含硒杂环化合物的合成和对超氧阴离子作用的ESR研究

Studies on the syntheses of selenium heterocycle compounds and their effect on superoxide radicals by ESR

体外抗氧化研究表明，Fra.A及Fra.B可有效清除超氧阴离子、羟基自由基、过氧化氢，抑制DNA氧化损伤。

The study showed that Fra . A and Fra . B could effectively scavenge superoxide anion , hydroxyl radical , hydrogen peroxide and inhibit DNA oxidative damage .

生物新陈代谢过程中产生众多的活性氧（reactiveoxygenspecies，ROS），包括超氧阴离子自由基（O2-.）

Various reactive oxygen species ( ROS ) are generated in the course of biological metabolism , such as superoxide ( O2 - . )

苹果渣多酚提取物对超氧阴离子（O2~-·）、羟自由基（·OH）和脂质过氧化均具有较强的清除能力。

Polyphenol extracts in apple pomace showed strong clear effect on superoxidized anionic radical 、 hydroxyl radical and lipid radical and strong inhibitory effect on oil .

结果发现用NOS自旋捕捉剂可检测到该体系所产生的超氧阴离子自由基。

It was found that the superoxide radicals could be detected by NOS in the above system .

超氧阴离子自由基对绿豆黄化幼苗ACC合酶的影响

The Effect of Superoxide Radical on the ACC Synthase from Etiolated Mungbean Seedlings

三种提取物对超氧阴离子（O2~-·）、羟自由基（·OH）清除作用均强于BHT。

Clear effect on superoxidized anionic radical and hydroxyl radical of three extrations was stronger than BHT .

目的探讨增龄过程中细胞释放超氧阴离子自由基和超氧化物歧化酶（SOD）、组织蛋白酶D活力的关系。

Objective The relation between superoxide anion free radical and the activity of SOD and Cathepsin D was studied in cellular senescence .

文献已经证实，SOD中的铜离子是催化歧化超氧阴离子的活性中心。

The copper complex moiety in SOD has been well documented as the active site for the catalytic dismutation of O2 - .

在非油质体系中，酶解物能很好的清除超氧阴离子自由基，但清除效果不如VC的效果好；

In the system of non-oil , zymolytes can clear superoxide negative ion ( O_2 ~ - ) but the effect of clear was not far from V_C ;

在冷处理后的光氧化胁迫中，外源SA抑制了超氧化物歧化酶活性而增加了超氧阴离子的含量。

During photooxidative stress , exogenous SA inhibited superoxide dismutase activity and increased the levels of superoxide anion radicals ;

结果说明，在培养大鼠大脑皮质神经细胞的H／R损伤中，超氧阴离子自由基（O2－）和其它氧自由基的氧化损伤起了重要作用。

Thus in H / R injury of cultured cerebral cortex cells , the oxidative injury of superoxide anion and other oxygen free radicals played an important role .

并用电子自旋捕集技术检测其对超氧阴离子自由基及羟自由基（OH－）的清除作用。

The scavenging effects of LC on oxygen free radical and hydroxyl radical ( OH ) were also investigated by using electron spin resonance ( ESR ) technique ;

平喘药对PMN超氧阴离子释放的影响

Effect of Antiasthmatic Drugs on Human PMNs Superoxide Production

结论铜（II）离子的L-组氨酸络合物不仅具有和超氧化物歧化酶基本相似的活性结构，而且也能催化超氧阴离子的歧化反应。

Conclusion the copper (ⅱ) complex with L_Histidine 's has the similar activity center and structure with the SOD and showes the same activity as the SOD .

按照以上工艺制备的苹果多酚提取物具有较强的还原能力和抗脂质过氧化活性，并对羟自山基、超氧阴离子自由基及亚硝基具有很强的清除作用，且优于同浓度的维生素C。

The apple polyphenol extracts had stronger reducing capacity , antioxidant activity on lipid-peroxidation , and scavenging effects on hydroxyl radical , superoxide anion radical and nitroso than ascorbic acid at the same concentration .

Cd对Cd-Pb复合胁迫植株超氧阴离子积累无影响。

Cd stress has no influence on the accumulation of superoxide radicals in Cd-Pb stressed plants .

活性氧（reactiveoxygenspecies，ROS）是生物体内一类活性含氧化合物的总称，主要包括超氧阴离子、羟自由基和过氧化氢等。

Reactive oxygen species ( ROS ) are those oxygen-containing molecules in the forms of super-oxide anion , hydroxyl radicals and hydrogen peroxide which appear more reactive than molecular oxygen .