Release of mitochondrial DNA correlates with peak inflammatory cytokines in patients with acute myocardial infarction

被引:33
作者
Qin, Chaoyi [1 ]
Gu, Jun [1 ]
Liu, Ruiqi [2 ]
Xu, Fei [4 ]
Qian, Hong [1 ]
He, Qian [3 ]
Meng, Wei [1 ]
机构
[1] Sichuan Univ, West China Med Ctr, Dept Cardiovasc Surg, Chengdu, Peoples R China
[2] Sichuan Univ, West China Med Ctr, Dept Burns & Plast Surg, Chengdu, Peoples R China
[3] Sichuan Univ, West China Med Ctr, Dept Emergency, Chengdu, Peoples R China
[4] Chengdu Women & Childrens Cent Hosp, Dept Anesthesiol, Chengdu, Peoples R China
基金
中国国家自然科学基金;
关键词
acute myocardial infarction; inflammatory responses; mitochondrial DNA; OXIDATIVE STRESS; LYMPHOCYTE RATIO; NEUTROPHIL; MORTALITY; PREDICTOR; RISK;
D O I
10.14744/AnatolJCardiol.2016.7209
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective: The present study is an exploration of the dynamic changes of plasma mitochondrial deoxyribonucleic acid (mtDNA) and inflammatory level in patients with acute myocardial infarction (MI). Methods: Thirty-eight patients with acute MI and 33 control participants were included in the study. Blood samples were collected on admission, 12 hours post-percutaneous coronary intervention (PCI), 24 hours post-PCI, and 48 hours post-PCI. White blood cell (WBC) count and C-reactive protein (CRP) level were determined. Plasma was isolated from whole blood. Plasma mtDNA was measured using real-time polymerase chain reaction, and tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) were measured using enzyme-linked immunosorbent assay kits. Bivariate correlation analysis was used to find correlation between plasma mtDNA and inflammatory level on admission. Results: Plasma mtDNA was significantly higher in patients with acute MI than controls on admission (p<0.01). Plasma mtDNA decreased significantly after PCI treatment (p=0.01). WBC count, TNF-alpha, IL-6 and CRP showed similar pattern: elevation after onset of acute MI and contraction after PCI treatment (p<0.05). Positive correlations between plasma mtDNA and WBC count (r=0.435; p<0.001), TNF-alpha (r=0.538; p<0.001), IL-6 (r=0.518; p<0.001), and CRP (r=0.524; p<0.001) were identified. Conclusion: Plasma mtDNA elevated after onset of acute MI and positive correlation was observed between plasma mtDNA and inflammatory level, suggesting that mtDNA may play a key role in inflammatory responses in patients with acute MI.
引用
收藏
页码:224 / 228
页数:5
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