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Exhaustive-exercise-induced oxidative stress alteration of erythrocyte oxygen release capacity

机译:彻底运动诱导的红细胞氧释放能力的氧化应激改变

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摘要

The aim of the present study was to explore the effect of exhaustive running exercise in the oxygen release capacity of rat erythrocytes. Rats were divided into sedentary control, moderate running exercise, and exhaustive running exercise groups. The thermodynamic and kinetic properties of the erythrocyte oxygen release process of the different groups were tested. We also determined the degree of band-3 oxidation and phosphorylation, anion transport activity, and carbonic anhydrase isoform II activity. Biochemical studies suggested that exhaustive running significantly increased oxidative injury parameters in thiobarbituric acid reactive substances and methaemoglobin levels. Furthermore, exhaustive running significantly decreased anion transport activity and carbonic anhydrase isoform II activity. Thermodynamic analysis indicated that erythrocytes oxygen release ability also significantly increased due to elevated 2,3-DPG level after exhaustive running. Kinetic analysis indicated that exhaustive running resulted in significantly decreased T50 value. We presented evidence that exhaustive running remarkably impacted thermodynamic and kinetic properties of RBC oxygen release. In addition, changes in 2,3-DPG levels and band-3 oxidation and phosphorylation could be the driving force for exhaustive-running-induced alterations in erythrocyte oxygen release thermodynamic and kinetic properties.
机译:本研究的目的是探讨彻底运行运动在大鼠红细胞的氧释放能力中的效果。大鼠分为久坐不动的控制,中等运行运动,以及详尽的运行运动组。测试了不同基团的红细胞氧释放方法的热力学和动力学性质。我们还确定了带-3氧化和磷酸化,阴离子运输活性和碳酸酐酶同种族II活性的程度。生物化学研究表明,含有彻底运行的含有显着增加了硫碱酸反应性物质和甲昔糖蛋白水平的氧化损伤参数。此外,整洁地运行显着降低阴离子运输活性和碳酸酐酶同种型II活性。热力学分析表明,由于落实后的2,3-DPG水平升高,红细胞氧释放能力也显着增加。动力学分析表明,彻底运行导致T50值显着降低。我们提出了证据,以至于彻底运行显着影响RBC氧释放的热力学和动力学性质。此外,2,3-DPG水平和带3氧化和磷酸化的变化可以是用于彻底运行诱导的红细胞释放热力学和动力学性能的驱动力。

著录项

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  • 作者单位

    Key Laboratory of Biorheological Science and Technology (Chongqing University);

    Department of Pathophysiology Institute of Basic Medical Sciences Chinese Academy of Medical;

    Department of Anatomy School of Basic Medicine Binzhou Medical University Yantai P.R. China;

    Key Laboratory of Biorheological Science and Technology (Chongqing University);

    Key Laboratory of Biorheological Science and Technology (Chongqing University);

    Key Laboratory of Biorheological Science and Technology (Chongqing University);

    Key Laboratory of Biorheological Science and Technology (Chongqing University);

    Department of Anatomy School of Basic Medicine Binzhou Medical University Yantai P.R. China;

    Department of Anatomy School of Basic Medicine Binzhou Medical University Yantai P.R. China;

    Department of Anatomy School of Basic Medicine Binzhou Medical University Yantai P.R. China;

    Key Laboratory of Biorheological Science and Technology (Chongqing University);

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 药理学;
  • 关键词

    exhaustive exercise; RBCs; oxidative stress; oxygen transport;

    机译:彻底的运动;RBCS;氧化应激;氧气运输;

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