Relationship Between Red Cell Distribution Width and Oxidative Stress Indexes in Patients with Coronary Artery Disease.

IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Reports of Biochemistry and Molecular Biology Pub Date : 2023-07-01 DOI:10.61186/rbmb.12.2.241
Gholamreza Namazi, Somayeh Heidar Beygi, Mohammad Hasan Vahidi, Parastoo Asa, Fereshteh Bahmani, Alireza Mafi, Fariba Raygan
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Abstract

Background: Red blood cell distribution (RDW), an index of the size variability of erythrocytes, is significantly associated with coronary stenosis and can strongly predict the mortality risk in coronary artery disease (CAD). The biological mechanisms involved are not fully understood but may include oxidative stress. We sought to investigate the relationship between RDW and markers of oxidative stress in patients with CAD.

Methods: Participants were 112 consecutive patients referred to department of cardiac surgery for evaluation of chest pain. 32 patients had stable CAD, 40 patients had unstable CAD and 40 subjects were diagnosed as non-CAD. The levels of lipid peroxidation (TBARS) were measured in plasma and membrane samples by a fluorometric method. The plasma levels of glutathione (GSH) and total antioxidant capacity (TAC) were determined using spectrophotometric methods.

Results: Lipid peroxidation levels were significantly higher in the erythrocyte membrane of stable CAD patients than non-CAD patients. The levels of TAC were significantly lower in both stable and unstable groups when compared to that of the control group (P< 0.019 and P< 0.001, respectively), but did not differ between stable and unstable CAD. In addition, there was no significant difference in the serum GSH levels among the study groups. Membrane TBARS was directly associated with RDW in three groups of study.

Conclusions: We found an independent association between RDW levels and membrane lipid peroxidation in patients with CAD. This finding suggests that oxidative stress may be a potential underlying biological mechanism for increased RDW in CAD patients.

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冠心病患者红细胞分布宽度与氧化应激指数之间的关系
背景:红细胞分布(RDW)是红细胞大小变异性的一个指标,与冠状动脉狭窄密切相关,可有力预测冠状动脉疾病(CAD)的死亡风险。相关的生物学机制尚未完全明了,但可能包括氧化应激。我们试图研究 CAD 患者的 RDW 与氧化应激标记物之间的关系:研究对象为因胸痛转诊至心脏外科的 112 名连续患者。32名患者为稳定型CAD,40名患者为不稳定型CAD,40名患者被诊断为非CAD。采用荧光测定法测量血浆和膜样本中脂质过氧化物(TBARS)的水平。采用分光光度法测定血浆中谷胱甘肽(GSH)和总抗氧化能力(TAC)的水平:结果:稳定型 CAD 患者红细胞膜的脂质过氧化水平明显高于非 CAD 患者。与对照组相比,稳定组和不稳定组的 TAC 水平均明显降低(分别为 P< 0.019 和 P<0.001),但稳定型和不稳定型 CAD 之间无差异。此外,研究组之间的血清 GSH 水平也无明显差异。在三组研究中,细胞膜 TBARS 与 RDW 直接相关:我们发现,在 CAD 患者中,RDW 水平与膜脂质过氧化之间存在独立关联。这一发现表明,氧化应激可能是导致 CAD 患者 RDW 增加的潜在生物学机制。
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来源期刊
Reports of Biochemistry and Molecular Biology
Reports of Biochemistry and Molecular Biology BIOCHEMISTRY & MOLECULAR BIOLOGY-
CiteScore
2.80
自引率
23.50%
发文量
60
审稿时长
10 weeks
期刊介绍: The Reports of Biochemistry & Molecular Biology (RBMB) is the official journal of the Varastegan Institute for Medical Sciences and is dedicated to furthering international exchange of medical and biomedical science experience and opinion and a platform for worldwide dissemination. The RBMB is a medical journal that gives special emphasis to biochemical research and molecular biology studies. The Journal invites original and review articles, short communications, reports on experiments and clinical cases, and case reports containing new insights into any aspect of biochemistry and molecular biology that are not published or being considered for publication elsewhere. Publications are accepted in the form of reports of original research, brief communications, case reports, structured reviews, editorials, commentaries, views and perspectives, letters to authors, book reviews, resources, news, and event agenda.
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