CD4CD25CD127lo调节性T细胞表达变化预测急性心肌梗死后患者再发心绞痛的危险性
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Reduced Levels of Circulating CD4CD25CD127lo Regulatory T Cells in Patients with Acute Myocardial Infarction Predict a High Risk of Reoccurrence of Angina Pectoris during Postinfarction Period
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    摘要:

    目的观察急性心肌梗死患者CD4CD25CD127lo调节性T细胞表达百分比,并研究其表达百分比与患者心功能、冠状动脉病变严重程度及预后的关系,探讨急性心肌梗死患者调节性T细胞表达变化的意义。方法入选114例急性心肌梗死患者(其中ST段抬高性心肌梗死86例,非ST段抬高性心肌梗死28例),38例健康体检者作为对照组。采用流式细胞术检测所有入选研究对象外周血调节性T细胞表达百分比,通过检测B型脑钠肽水平和测算左心室射血分数评估患者心功能,采用SYNTAX评分和病变冠状动脉支数评估患者冠状动脉病变严重程度。出院后1个月电话通知患者来门诊随访,随访内容包括再发心绞痛、NYHA心功能分级。结果急性心肌梗死患者组与对照组之间调节性T细胞表达百分比差异具有统计学意义(2.04%±1.20%比3.68%±1.25%,p<0.01)。ST段抬高性心肌梗死与非ST段抬高性心肌梗死之间调节性T细胞表达百分比差异没有统计学意义(2.10%±1.23%比1.85%±1.13%,p=0.34)。调节性T细胞表达百分比与B型脑钠肽水平、左心室射血分数、SYNTAX评分及病变冠状动脉支数间均不存在统计学相关性(r=0.015,p=0.87;r=-0.059,p=0.56;r=0.024,p=0.81;r=-0.083,p=0.41)。随访发现出院后1个月发生心绞痛患者与不发生心绞痛患者间调节性T细胞表达百分比存在统计学差异(1.54%±0.70%比2.23%±1.11%,p<0.01),其百分比与心绞痛事件密切相关(OR=0.414,95%CI 0.223~0.770,p<0.01)。结论急性心肌梗死患者调节性T细胞表达百分比显著降低,并能预测患者出院后1个月发生心绞痛的危险性。

    Abstract:

    AimTo investigate the circulating CD4CD25CD127lo regulatory T cells (Tregs) levels in patients with acute myocardial infarction (AMI) and controls.Furthermore, to determine the relation between initial Tregs levels and cardiac function, the severity of coronary atherosclerosis and prognosis.Methods114 patients with AMI (86 with ST-segment elevation myocardial infarction (STEMI) and 28 with non-ST-segment elevation myocardial infarction (NSTEMI)) and 38 normal subjects were enrolled.Initial circulating Tregs levels were measured using flow cytometry in all subjects at entry.In 114 patients with AMI, heart function was evaluated by serum B-type brain natriuretic peptide (BNP) and left ventricular ejection fraction (LVEF) determined by echocardiogram.SYNTAX score and the number of affected main vessels were obtained to reflect the severity of coronary atherosclerosis.At one-month after discharge, information about reoccurrence of angina pectoris and NYHA heart function classification was obtained by outpatient follow-up.ResultsLevels of circulating Tregs were lower in patients with AMI at admission in comparison with normal subjects (2.04%±1.20% vs 3.68%±1.15%, p<0.01).No significant differences in circulating Tregs levels were observed

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李昌义,金炜. CD4CD25CD127lo调节性T细胞表达变化预测急性心肌梗死后患者再发心绞痛的危险性[J].中国动脉硬化杂志,2012,20(4):345~350.

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  • 收稿日期:2011-12-05
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