在人体中，最常见的是氧自由基。
目的探讨氧自由基在低血容量休克难治期的作用。
Objective To study the role of oxygen free radicals (OFR) in irreversible shock.
目的：探讨氧自由基在肝缺血再灌注损伤(HIRI)中的作用及凯西莱的防护作用。
Objective: To evaluate the role of oxygen free radicals in hepatic ischemia and reperfusion injury (HIRI) and the influence of tiopronin.
目的探讨氧自由基在肝脏保存再灌注损伤(HPRI)中的作用。
Objective To explore the role of oxygen free radicals (OFR) in hepatic preservation-reperfusion injury (HPRI) of rats.
利用2'，7'二氯双氢荧光素二乙酸酯在共聚焦显微镜下测定内皮中的氧自由基生成量。
The production of oxygen-derived free radicals in the endothelium was measured with 2', 7'-dichlorodihydrofluorescein diacetate using confocal microscopy.
在充氧的溶液中检测到了超氧负离子自由基。
The superoxide anion radical was detected in the aerated solution.
结论：稀土离子在较低浓度时都能抑制活性氧自由基的生成。较高浓度时，作用相反。
Conclusion: Lanthanide ions can inhibit the production of active oxygen free radicals at low concentration, but it turned out contrary at high concentration.
结论：银可络在治疗高血压病过程中具有较强抗氧自由基损伤和抗脂质过氧化损伤作用。
CONCLUSION: Ginkgo plus has remarkable effects on anti oxygen free radicals injury and anti lipoperoxidation injury in treating essential hypertension.
氧自由基在CPB后心肌缺血再灌注损伤中起重要作用。
Oxygen free radical may play important roles in myocardial ischemia-reperfusion injury after CPB.
在皮瓣缺血再灌注后产生大量的超氧阴离子自由基，其变化十分活跃。
A great number of superoxide anion free radicals were produced after ischemia and reperfusion of skin flap with active change.
其中中性粒细胞在肺内蓦集，释放蛋白酶、氧自由基等毒性物质是一重要发病机制。
Among various inflammatory mediators neutrophil is thought to be a major pathogenesis by accumulation in distal airway and secreting elastase and oxygen-free radicals.
提示氧自由基可能损害细胞色素氧化酶活性，细胞色素氧化酶活性降低在肾缺血再灌流损伤中可能起重要作用。
These results suggest that oxygen free radicals may damage the activity of cytochrome oxidase, the reduction of which may play an important role in the injury of renal ischemia and reperfusion.
皂甙溶液在较低浓度时对羟基自由基与氧自由基就有一定的清除作用，自由基的清除效果与皂甙的浓度呈显著正相关性。
Low concentration saponins solution can eliminate hydroxy and oxygen free radicel, the effect of eliminating free radicel submits positive pertinence with saponins concentration.
目的采用在体犬心肌缺血再灌注动物实验模型，通过去白细胞技术，研究白细胞在缺血再灌注损伤心肌中产生氧自由基的作用。
Objective To study the role of leukocyte in generating oxygen free radical in myocardial ischemia and reperfusion injury by leukocyte-depletion technique.
百草枯中毒机理主要是在肺内产生氧自由基，破坏肺细胞，导致肺纤维化和呼吸衰竭。
Paraquat poisoning is a major mechanism of oxygen free radicals produced in the lungs, damage to lung cells, leading to respiratory failure and pulmonary fibrosis.
目的探讨亚低温在不同时间窗对实验性脑梗死氧自由基的影响。
Objective To explore the effect of mild hypothermia on oxygen free radicals (OFR) following the experimental ischemic brain at defined time window.
在G3MP2B3理论水平下研究了氧负离子与乙烯自由基的反应机理。
The reaction mechanism of atomic oxygen radical anion with vinyl radical has been investigated at the G3MP2B3 level of theory.
在关于啮齿类动物的研究中，波士顿小组发现：当氧自由基开始聚集时，调节蛋白PGC-1a开启大脑抗氧化防御系统。
In research with rodents, the Boston group found that the regulatory protein PGC-1a switches on the brain's anti-oxidant defense system when free radicals begin to accumulate.
结论：在本实验氧剂量范围内，肺组织自由基量变与氧暴露剂量有关。
Conclusion: There were significant correlations between the changes of free radicals of the lung tissue and oxygen exposure doses within the oxygen doses range of the present experiment.
线粒体在细胞能量代谢，氧自由基生成和细胞凋亡中发挥重要作用。
Mitochondria play important roles in cellular energy metabolism, free radical generation and apoptosis.
它是唯一以超氧阴离子自由基为底物的酶，可以催化超氧阴离子的歧化反应产生分子氧和过氧化氢，在南极细菌对恶劣环境的适应中具有重要作用。
These enzymes act to disproportionate two molecules of superoxide anion to hydrogen peroxide and water, and plays important role in extreme environment adaptation of Antarctic microorganism.
结果提示，氧自由基（OFR）在AOSC的发病机制中起着重要作用。
The results suggest that oxygen free radical (OFR) may play an important role in the pathophysiology of AOSC;
番茄红素具有高效猝灭单线态氧和清除自由基的作用，其抗氧化性在类胡萝卜素中最强；
Lycopene has the functions of easily quenching singlet oxygen and deleting free radicals. Its antioxidant activity is one of the highest in the carotenoids.
目的：探讨内皮衍生微粒(EMP)诱导内皮功能失调的机制和氧自由基(O-·2)在EMP诱导内皮功能失调中所起的作用。
AIM: To investigate the mechanism of endothelium-derived microparticles (EMP) -induced endothelial dysfunction and the role of superoxide anion (o - · 2) in EMP-induced endothelial dysfunction.
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V_C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;
从而说明氧自由基在肺动脉内皮细胞缺氧损伤中具有重要意义，山莨菪碱对肺动脉内皮细胞缺氧所致损伤有保护作用。
The results showed that BPEC could be injured by hypoxia. The oxygen free radicals play an important role in hypoxic injury and …
从而说明氧自由基在肺动脉内皮细胞缺氧损伤中具有重要意义，山莨菪碱对肺动脉内皮细胞缺氧所致损伤有保护作用。
The results showed that BPEC could be injured by hypoxia. The oxygen free radicals play an important role in hypoxic injury and anisodamine has a protective effect …
从而说明氧自由基在肺动脉内皮细胞缺氧损伤中具有重要意义，山莨菪碱对肺动脉内皮细胞缺氧所致损伤有保护作用。
The results showed that BPEC could be injured by hypoxia. The oxygen free radicals play an important role in hypoxic injury and anisodamine has a protective e...
结论在实验条件下，缬草醚酯提取物对DPPH自由基、羟自由基、超氧阴离子有较好的抑制作用。
ConclusionThe extract has good scavenging effect on DPPH ·, OH · and O2 - · under the condition of experiment.
结论在实验条件下，缬草醚酯提取物对DPPH自由基、羟自由基、超氧阴离子有较好的抑制作用。
ConclusionThe extract has good scavenging effect on DPPH ·, OH · and O2 - · under the condition of experiment.
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