Abstract
Objective To explore the relationship between growth arrest-specific protein 6 (Gas6) and acute myocardial infarction (AMI). Methods Patients were included from Renmin Hospital of Wuhan University between January to June 2018. A total of 103 patients with angina pectoris aged 60.20±9.35 were included as angina pectoris group. A total of 102 patients with myocardial infarction aged 58.85±9.80 were included as AMI group. A total of 130 healthy individuals aged 63.14±10.40 were included as healthy control. Spearman analysis was performed to investigate the correlations between Gas6 and risk factors of (coronary heart disease, CHD). Logistic regression was performed to investigate the risk factor of myocardial infarction. ROC (receiver operating characteristic) curve was used to analyze the diagnostic performance of Gas6 to AMI. Results The levels of Gas6 in angina pectoris group [13.77 (10.57-17.03) ng/ ml, t=2.444, P=0.025] and AMI group[16.22 (12.70-20.09) ng/ml, t=4.965, P<0.001] was higher than control group [10.92 (8.90-14.92) ng/ml]. The levels of Gas6 in angina pectoris group was lower than AMI group (t=3.854, P<0.001). In the sensitivity analysis excluding hypertension and diabetes, the serum Gas6 level in AMI group (n=37) [15.05 (11.08-16.20) mg/L] was higher than that in control group [10.93 (8.91-14.93)mg/L, t=3.479, P=0.001] and angina group (n=42) [12.85 (9.10-16.20) mg/L, t=2.639, P=0.019]. CRP (C-reactive protein), WBC (white blood cell count), Glu (fasting glucose) and Cr (creatinine) were positively correlated with Gas6, r=0.194, 0.176, 0.180 and 0.120, P value=0.010, 0.012, 0.010 and 0.002, respectively. Logistic regression showed that Gas6 was a independent factor of myocardial infarction [OR and 95%CI were 1.080 (1.012-1.152), P=0.020]. AUC and 95%CI of ROC curve was 0.648 (0.572-0.723). Conclusion The levels of Gas6 may be positively associated with myocardial infarction risk. Key words: Acute myocardial infarction; Inflammation; Growth arrest-specific protein 6
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