活性氧自由基

UV辐射并不存在强烈促进植物CH4排放的现象，可能需要清除活性氧自由基进行深入探究。

UV radiation does not strongly stimulate plants to emit CH4 , and it might be studied further by removing ROS .

而另外一类主要的含铜蛋白是铜／锌超氧化物歧化酶（CSD），它对于植物各类代谢所产生的活性氧自由基的脱毒和清除超氧离子非常重要。

Another major copper containing protein , Cu / Zn superoxide dismutase ( CSD ), is essential for detoxifying ROS and scavenging superoxide in plants .

耐辐射球菌清除活性氧自由基及对DNA的保护作用

Free radicals scavenging effects of Deinococcus radiodurans prevents oxidative damage to DNA

OH自由基属于活性氧自由基，具有强氧化作用，在生物体内可损伤机体。

OH radical is one of the reactive oxygen species , and is very oxidative .

从绿茶中提取的茶多酚粗制品具有活性氧自由基清除作用，其活性比等量Vc高4.16倍。

Antioxidative activity of green tea extract is 4.16 times higher than that of ascorbic acid .

DNA氧化损伤主要是活性氧自由基及其代谢产物攻击DNA，并与DNA碱基结合形成加合物引起的。

DNA oxidative damage was mainly caused by active oxygen free radicals and its metabolites which attack DNA .

芦丁等天然产物清除活性氧自由基O（？）~-和·OH的ESR研究

ESR study of the scavenging effects of natural products of rutin etc superoxide and hydroxyl radicals

几种饮料清除活性氧自由基的ESR研究

ESR study of scavenging reactive oxygen radicals by some drinks

一氧化氮供体诱导HL-60细胞凋亡过程中活性氧自由基和抗氧化能力的变化

Change of Reactive Oxygen Species and Antioxidative Capacity on Nitric Oxide Induced Apoptosis in HL-60 Cells

这两种活性氧自由基对IL-2诱导的LAK细胞增殖的作用是不同的。

The effects of these reactive oxygen species on the proliferation of LAK cells induced by IL-2 were different .

褐藻硫酸多糖清除活性氧自由基作用及动力学的ESR研究

An in vitro ESR study of the free radical scavenging effects of the sulfated polysaccharides from brown seaweed and their kinetics

目的探讨增龄对SAM小鼠脑线粒体DNA（mtDNA）缺失、活性氧自由基水平及脑组织总抗氧化能力的影响。

Objective To explore the effect of aging on cerebral mitochondrial ( mt ) DNA deletions , active oxygen radical level and total anti-oxidization ability of brain tissues .

本文认为Paraquat产生的活性氧自由基促进了果实衰老，产生了伤害作用。

This suggests the active oxygen produced by PQ treatment promote senescence and injury fruit .

结果表明，DRP能够有效的清除活性氧自由基。

The results show that DRP had effective scavenging activity of reactive oxygen radicals .

利用电子自旋共振波谱技术（ESR）检测漆酶处理木材、漆酶活化木素及其磺酸盐的活性氧自由基（reactiveoxygenspecies，ROS）变化规律与稳定性规律，揭示其胶合机理。

The changes and stability of reactive oxygen species ( ROS ) and their bonding mechanisms of laccase-treated wood fibers , lignin and salts of lignosulphonate respectively were determined by ESR .

超氧化物能促进产生对菌体自体代谢来说过多的活性氧自由基（ROS），过量的活性氧自由基会对细胞代谢及其它生理活动会产生不利的影响。

Superoxide stress promotes the excessive production of reactive oxygen species ( ROS ) that have detrimental effects on cell metabolic and other physiological activities .

MPTP对小鼠黑质及纹状体活性氧自由基代谢酶基因表达的影响

Gene expression of reactive oxygen species scavenging enzymes in substantia nigra and striatum of MPTP treated C57BL mice

在影响卵母细胞体外成熟和体外受精的诸多因素中，活性氧自由基（reactiveoxygenspecies，ROS）是降低卵母细胞体外成熟质量和受精后胚胎发育能力的主要因素之一。

One of the factors influencing oocyte in vitro maturation and in vitro fertilization is reactive oxygen species ( ROS ) which can reduce the quality of IVM oocyte and the ability of embryo following development after fertilization .

缺血性脑损伤后，活性氧自由基（ROS）增加，以不同的细胞分子机制引起组织损伤。

After brain injury by ischemia , the production of reactive oxygen species ( ROS ) may increase , leading to tissues damage via several different cellular molecular pathways .

云南甘草总皂甙清除氧自由基和抗脂质过氧化作用结论：葡多酚对三种活性氧自由基均有不同程度的清除作用，其中LOO·>O·2>·OH。

Oxygen free radical scavenging activity and anti-lipid peroxidation of saponins of Glycyrrhiza yunnanensis The scavenging activity is in the following order : LOO · > O · 2 > · OH .

本实验中，用电子和离子照射柴油的表面，活化柴油，增加柴油中的活性氧自由基·O2-和H2等。

Diesel oil is activated by electrons and ions . With the increasing of · O_2 ~ - radicals and H_2 et al , the combustion speeds up and completes more fully .

用电子自旋共振技术和化学发光（CL）法研究了川芎嗪（Ligustrazinge，Lig）对活性氧自由基的清除作用。

The scavenging effects of ligustrazine ( Lig ) isolated from Ligusticum wallichii Franch on active oxygen free radicals were studied using spin trapping technique and chemiluminescence methods .

作为细胞抗氧化酶系的主要成员之一，过氧化氢酶在细胞抵抗活性氧自由基（ROS）胁迫过程中发挥着重要的作用。

Catalases are important antioxidant enzymes in eukaryotic cells and constitute a primary source of cellular defenses against cell damages by reactive oxygen species ( ROS ) often induced under an environmental stress .

低温（液氮）ESR技术、免疫学实验技术和生化方法检测大鼠肾组织内活性氧自由基水平及血清SOD水平和GSH-Px酶活性。

Low-temperature ESR technique , experimental technique of immunotoxicology and biochemical method were used to detect the level of reactive oxygen radicals in kidney tissue of rats and SOD level and GSH-Px activity in rat serum .

检测外周血淋巴细胞DNA损伤及肝肾组织活性氧自由基（ROS）水平、脂质过氧化产物丙二醛（MDA）含量，以及超氧化物歧化酶（SOD）和过氧化氢酶（CAT）活性。

The DNA damage of peripheral blood lymphocytes , reactive oxygen species level ( ROS ), malondialdehyde ( MDA ) content and the activities of superoxide dismutase ( SOD ) and catalase ( CAT ) in liver and kidney were measured .

研究了花色苷清除DPPH.的能力，并用荧光化学发光法测定了花色苷对活性氧自由基（O2-·、·OH、H2O2）的清除作用。

In this paper , the scavenging effect of anthocyanins extracted from red grape skin against DPPH · was studied and its scavenging activity against oxygen free radicals ( O2 - ·,· OH , H2O2 ) was determined by fluorescent chemiluminescence method .

实验测定了不同浓度氨氮胁迫下栉孔扇贝（chlamysfarreri）血淋巴中胞内胞外活性氧自由基（ROIs）含量、超氧化物歧化酶（SOD）和过氧化氢酶（CAT）活性的变化。

Effect of Ammonia-N on the content of reactive oxygen species ( ROIs ) and the activities of superoxide dismutase ( SOD ) and catalase ( CAT ) in haemolymph of Chlamys farreri was studied .

铜（Ⅱ）-磺基水杨酸配合物在控制的-0.4V电位下，Cu（ssal）2+2作为媒介通过电化学反应产生活性氧自由基O2·，氧自由基可以切割DNA。

Cu ( ssal ) ~ ( 2 + ) _2 complex mediate generation of reactive oxygen species from O_2 by the redox reaction in negative potential , these radicals are capable of damaging DNA .

采用邻苯三酚自氧化法和电子自旋共振（ESR）技术等均证实了在此反应体系中通过亚硒酸钠的催化作用产生了超氧阴离子（O2~-）等活性氧自由基。

It is shown by ESR and autooxidation of Pyrogallol that the superoxide radicals O2 are generated during the reaction in which sodium selenite acts as a catalyst . More O_2 has been found to be-generated to H_2O_2 than to O_2 .

结论：BWPr和BWF都有清除活性氧自由基的作用，提示除荞麦类黄酮外，荞麦蛋白质也是一种自由基清除剂。

Conclusion : Besides flavonoids , the protein extracts of buckwheat was also an effective free radical scavenger .