超氧自由基

  • 网络superoxide radical;Superoxide free radical
超氧自由基超氧自由基
  1. 分别采用α-脱氧核糖氧化法和连苯三酚自氧化法,进行了大豆异黄酮清除羟自由基·OH和超氧自由基O2~-·的抗氧化试验。

    Using alpha deoxyribose oxidation and pyrogallol autoxidation , experiments of soybean isoflavones scavenging hydroxy radical and superoxide radical were respectively made .

  2. 栽培型品种SOD活性增幅高于野生型品种,超氧自由基增幅较低;

    The domesticated species increased more in SOD activity content than the wild species did , and showed a lower increment in superoxide radical content ;

  3. 外源H_2O_2和超氧自由基对稻瘟病菌和水稻细胞有直接毒害。

    H2O2 and exo-superoxide anion radicals exhibited toxicity to P grisea and rice cells .

  4. 铜、锌提高仁用杏抗逆性反映在SOD活性变化上,铜、锌通过增强SOD活性,降低超氧自由基含量,而抑制细胞膜脂质过氧化作用,进而提高仁用杏抗逆性。

    Copper and zinc improved hardiness of kernel-apricot by enhancing SOD activity , decreasing superoxide free radical content , restraining lipid peroxidation of cell membrane .

  5. 脂质过氧化作用加剧,丙二醛(MDA)含量和阴离子超氧自由基(O2·)产生速率明显升高。

    However , malondialdehyde ( MDA ) content and generative rate of superoxide radical ( O_ ( 2 ~~~~~~ (·))) increased significantly .

  6. 因此,向受照射的淋巴细胞的培养物中加入外源性的超氧化物歧化酶(SOD)以清除损伤DNA的超氧自由基(O2~-),可减少辐射诱发的染色体损伤。

    Therefore , chromosome damage induced by radiation may be reduced by adding exogenous SOD into the radiation exposed lympho-cytes culture to eliminate the superoxide free radical which damages DNA .

  7. 作者认为Ge-132为一种超氧自由基清除剂。

    It can be concluded that Ge-132 is a superoxide scavenger .

  8. 在试验过程中测定了超氧化物岐化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)的活性、超氧自由基的生成速率以及丙二醛(MDA)的含量。

    The activity of Superoxide Dismutase Peroxidase and Catalase , the producing speed of Superoxide free radical and the contents of Malondialdehyde was tested in the experiment .

  9. 本实验观察了羧乙基锗倍半氧化物(Ge-132)在这二个反应体系中对超氧自由基生成的影响,结果发现:Ge-132剂量依赖地抑制上述二种反应。

    The effect of Ge-132 on super - oxide release was observed in these two systems .

  10. 超氧自由基(02)在环磷酰胺(CTX)所致小鼠骨髓细胞及外周血细胞损伤效应中的作用

    The injurious effects of Superoxide ( 0_2 ) caused by CTX on the bone marrow cells and the peripheral blood cells of mice

  11. 超氧自由基对谷氨酸摄取的抑制及Ebselen的保护

    Inhibition of Glutamate Uptake by Superoxide Anion Radical in Rat Cortical Synaptosomes and the Protective Effect of Ebselen

  12. 结论:CTX所致高浓度超氧自由基是造成细胞损伤的重要原因。

    Conclusion : High concentration of Superoxide on caused by CTX was the one of mechanisms that led to damage action to mice bone marrow and peripheral blood cells .

  13. 目的:利用超氧自由基(O-2)诱导的金黄地鼠颊囊急性炎症损害模型,研究颊囊组织中超氧化物歧化酶(SOD)活性的动态变化规律以及外源性SOD对其的影响。

    Objective : To study the changes of superoxide dismutase ( SOD ) level in hamster cheek pouch with acute inflammatory lesion during different stages and the effect of local administration of exogenous SOD on the level of endogenous mentioned SOD .

  14. 采用DPPH自由基体系、亚油酸体系、还原力的测定、羟基自由基体系及超氧自由基体系对三种荷叶茶茶汤的抗氧化能力进行研究。

    The antioxidant activities of three kinds of lotus leaf tea infusion were studied by power reducing , DPPH radical system , linoleic acid system , Hydroxyl radical system and superoxide radical system .

  15. 目的研究新型磷酸二酯酶(PDE)3抑制剂西洛他唑(cilostazol)对中性粒细胞超氧自由基(O·2)和钙离子浓度([Ca2+]i)的影响。

    Aim To examine the effects of a novel selective phosphodiesterase ( PDE ) type 3 inhibitors , cilostazol on superoxide free radicals ( O · 2 ) generation and calcium concentration ( I ) in neutrophils .

  16. 体外抗氧化实验说明,EGCG磷脂复合物仍具有较强的DPPH自由基清除能力,铁离子还原能力、ABTS自由基清除活性和还原能力,中等强度的超氧自由基的清除活性。

    The antioxidant activities of EGCG-phospholipid complex were evaluated by various methods in vitro , which showed strong DPPH radical scavenging , ferric ion reducing capacity , ABTS radical scavenging activity and reducing power , moderate reducing superoxide radical scavenging activity . 3 .

  17. 结果表明,CrudeCSPS、CSPS-1、CSPS-2、CSPS-3均具有不同的超氧自由基清除能力、羟自由基清除能力、还原力、脂质过氧化抑制活性、金属离子螯合能力。

    Results showed that crude CSPS , CSPS-1 , CSPS-2 and CSPS-3 had different superoxide radical scavenging activity , hydroxyl radical scavenging activity , reducing power , lipid peroxidation inhibition effect and ferrous ion chelating activity .

  18. 盛花期过后,呼吸速率、蛋白质和ATP含量迅速降低,UWL强度缓慢下降,而超氧自由基的产生速率与丙二醛含量迅速升高。

    After the peak season of blossom , the respiration rate and ATP content declined rapidly while the UWL intensity went down slowly , but the active oxygen production rate increased rapidly . The protein content increased at first and then decreased during the florescence of apricot .

  19. 超氧自由基和血液粘度的相关性研究

    Study of the Relationship between Superoxide Radical and Blood Viscosity

  20. 海藻中类胡萝卜素抗超氧自由基活性研究

    Superoxide radical scavenging activities of carotenoids isolated from marine algae

  21. 玉米叶片涝渍伤害过程中超氧自由基的积累

    Accumulation of superoxide radical in corn leaves during waterlogging

  22. 银杏超氧自由基清除剂的制备及其热稳定性

    Preparation and Heat Stability of Ginkgo Superoxide Radical Scavenger

  23. 超氧自由基在三环唑防治稻瘟病中的作用

    Possible function of superoxide anion radical in rice blast disease control by tricyclazole

  24. 光氧化胁迫下几种植物叶片的超氧自由基产生速率和光合特性

    Superoxide Production Rate and Photosynthetic Feature in Leaves of Some Plant Species Under Photooxidation

  25. 不同成熟度杏果实采后抗坏血酸和超氧自由基代谢的变化

    Changes of Ascorbic Acid and Superoxide Radical Metabolism of Different Maturity Apricot Fruits after Harvesting

  26. 黄芩甙及其铜(Ⅱ)、锌(Ⅱ)配合物对超氧自由基的清除作用

    Scavenging Effects of Baicalin and Its Copper (ⅱ) . Zinc (ⅱ) Complexes on Superoxide Radical

  27. 葡萄糖处理提高了总酚含量和超氧自由基的清除能力和还原能力。

    The total phenols content and superoxide radical scavenging activity and reducing power were improved .

  28. 杂交稻旗叶衰老过程中超氧自由基与超氧物歧化酶活性的变化

    Changes of Superoxide Anion Radicals and Superoxide Dismutase Activity During Senescence of Flag Leaf in Hybrid Rice

  29. 荧光动力学分析新方法测定超氧自由基抑制剂的抗氧活性

    A New Method of Determination on Antioxidant Activity of Scavening on Superoxide Radicals by Fluorescent Kinetic Analysis

  30. 并测定健心1号复方制剂的不同浓度,对超氧自由基(O2~-)的清除效率。

    The efficiency of eliminating O_2 ~ - of Jian Xin 1 mixture with different concentrations has been measured .