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Chinese Journal of Clinical Laboratory Management(Electronic Edition) ›› 2014, Vol. 02 ›› Issue (02): 106-111. doi: 10.3877.cma.j.issn.2095-5820.2014.02.009

• Clinical Research • Previous Articles     Next Articles

Prediction of serum interleukin-6 level on the myocardial injury in patients with acute myocardial infarction

Yanhui Ma1, Lin Deng1, Xiangliang Yuan1, Ling Xu1, Li Li1, Lisong Shen1, Weiping Xu1,()   

  1. 1.Department of Clinical Laboratory,Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
  • Received:2014-04-12 Online:2014-05-28 Published:2024-11-30
  • Contact: Weiping Xu

Abstract:

Objective

To investigate the prediction of serum interleukin-6 (IL-6) level in patients with acute myocardial infarction (AMI) on the myocardial injury.

Methods

A case control study enrolled 54 patients with AMI in the Department of Emergency and the Department of Cardiology, Xinhua Hospital, and 20 healthy donors from the Medical Examination Center of the same Hospital from November 2012 to May 2013. AMI patients were divided into two groups according to the levels of serum IL-6 within 24 h after attack. The levels of IL-6 and transforming growth factor β1 (TGF-β1) were measured by ELISA. The serum levels of the other 19 cytokines were measured using Luminex assay. CD4+CD25+Foxp3+Treg and Th17 cells were analyzed by flow cytometry. Both clinical and biochemical indicators were measured and analyzed in the Department of Laboratory.

Results

BCompared with the healthy donors, the levels of high sensitivity C reactive protein (hs-CRP) and creatine kinase-MB(CK-MB) were significantly higher in the two AMI groups (all P <0.05); and the levels in IL-6+ group were significantly higher than those in IL-6 group (hs-CRP: 8.43 (1.28-10.75) μg/L vs 0.55 (0.15-1.35) μg/L, Z=27.3,P<0.05; CK-MB: 25.0 (14.0-66.0) μg/L vs 11.5 (8.8-17.0) μg/L, U=217, P<0.05). The levels of IL-17, TGF-β, tumor necrosis factor α (TNF-α), and Th17 cells in IL-6+ and IL-6- AMI were both significantly higher than the normal donors, while there was no difference between two AMI groups. CD4+CD25+Foxp3+Treg cells in IL-6+ and IL-6- AMI patients were both lower than those in normal donors, while there was also no difference between the two AMI groups.

Conclusions

IL-6+AMI patients presented more severe myocardial damage (TNI as indicator) and inflammation(hs-CRP, IL-10 and IL-8 as indicator). IL-6 could be used for the risk stratification in AMI.

Key words: Acute myocardial infarction, Interleukin 6, Cytokine

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