Heterogeneity of Systemic Oxidative Stress Profiles in COPD: A Potential Role of Gender.

Heterogeneity of Systemic Oxidative Stress Profiles in COPD: A Potential Role of Gender.
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DOI:
10.1155/2015/201843
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发表时间:
2015
影响因子:
--
通讯作者:
Hayot M
Hayot M
中科院分区:
生物学2区
文献类型:
--
作者:
Maury J;Gouzi F;De Rigal P;Heraud N;Pincemail J;Molinari N;Pomiès P;Laoudj-Chenivesse D;Mercier J;Préfaut C;Hayot M

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氧化应激(OS)在COPD患者的肌肉损伤和运动能力中起着关键作用。然而,文献显示,全身OS标志物表现出很大的异质性,这可能会阻碍处方有效的抗氧化剂补充。因此,本研究旨在确定COPD患者的OS标志物失衡(相对于经验证的正常参考值),并研究全身OS特征的可能性。我们测量了54例稳定期COPD患者的全身酶/非酶抗氧化剂和脂质过氧化(LP)水平,这些患者被转诊接受康复治疗。这些患者的主要全身抗氧化剂缺乏与维生素和微量元素有关。89%的COPD患者表现出全身抗氧化失衡,这可能导致其中69%的患者全身LP水平升高。有趣的是,两名患者(聚类3和4)的LP增加幅度更大,同时铜增加和/或维生素C、GSH和GPx降低。进一步分析显示,COPD女性的全身LP水平较高,并与运动能力相关。 因此,我们目前的数据支持未来使用抗氧化维生素和微量元素来提高运动能力,但COPD患者可能会表现出不同的积极反应。
Oxidative stress (OS) plays a key role in the muscle impairment and exercise capacity of COPD patients. However, the literature reveals that systemic OS markers show great heterogeneity, which may hinder the prescription of effective antioxidant supplementation. This study therefore aimed to identify OS markers imbalance of COPD patients, relative to validated normal reference values, and to investigate the possibility of systemic OS profiles. We measured systemic enzymatic/nonenzymatic antioxidant and lipid peroxidation (LP) levels in 54 stable COPD patients referred for a rehabilitation program. The main systemic antioxidant deficits in these patients concerned vitamins and trace elements. Fully 89% of the COPD patients showed a systemic antioxidant imbalance which may have caused the elevated systemic LP levels in 69% of them. Interestingly, two patient profiles (clusters 3 and 4) had a more elevated increase in LP combined with increased copper and/or decreased vitamin C, GSH, and GPx. Further analysis revealed that the systemic LP level was higher in COPD women and associated with exercise capacity. Our present data therefore support future supplementations with antioxidant vitamins and trace elements to improve exercise capacity, but COPD patients will probably show different positive responses.
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