Abstract:Objective To observe the difference of plasma soluble CD146 levels in patients with different types of coronary heart disease, and to explore the predictive value for coronary heart disease.Methods From November 2018 to February 2019, 81 inpatients in the second ward of cardiovascular department of the First Affiliated Hospital of Xinxiang Medical College were collected. According to the clinical manifestations and the results of coronary angiography, they were divided into acute myocardial infarction group, unstable angina group and stable angina group. Those without obvious abnormality in coronary angiography were normal control group. The clinical data of the patients in each group were collected, the level of sCD146 in each group was detected by ELISA, and the Gensini score was calculated according to the results of coronary angiography. The correlation between sCD146 level and Gensini score in the coronary heart disease group was analyzed, and the ROC curve for predicting different types of coronary heart disease was established.Results WBC [ O^R = 2.512 (95% CI: 1.210, 5.214) ], CK-MB [ O^R = 2.119 (95% CI: 1.059, 4.240) ], ALT [ O^R = 1.963 (95% CI: 1.222, 3.153) ], AST [ O^R = 2.219, (95% CI: 1.095, 4.497) ], Cr [ O^R = 1.202 (95% CI: 1.016, 1.421) ], LVDd [ O^R = 1.802 (95% CI: 1.221, 3.847) ], LVEF [ O^R = 2.203 (95% CI: 1.262, 3.847) ], and the level of sCD146 [ O^R = 2.118 (95% CI: 1.114, 4.027) ] were the risk factors of ACS (P < 0.05). The level of sCD146 in coronary heart disease group was significantly different from that in normal control group (P < 0.05), and Spearman correlation analysis showed that there was a positive correlation between the level of sCD146 and Gensini score in the coronary heart disease group (rs = 0.778, P = 0.000). With establishing ROC curve, when the level of plasma sCD146 was 187.4 ng/mL, the sensitivity and specificity of predicting acute myocardial infarction were the best [87.02% (95% CI: 0.785, 0.944)and 88.2% (95% CI: 0.795, 0.967) ], and the Yoden index was 0.752; when the level of plasma sCD146 was 170.3 ng/mL, the sensitivity and specificity of predicting unstable angina were the best [96.01% (95% CI: 0.832, 0.996) and 76.48% (95% CI: 0.501, 0.935) ], and the Yoden index was 0.725; When the level of scd146 was 147.43 ng/mL, the sensitivity and specificity of sCD146 were 62.5% (95% CI: 0.354, 0.848) and 76.47% (95% CI: 0.501, 0.932), and the Yoden index was 0.390.Conclusions The level of sCD146 may reflect the occurrence and development of coronary heart disease, and provide a new way to predict the condition of coronary heart disease.