Correlation between the serum FABP4, ANGPTL3, and ANGPTL4 levels and coronary artery disease

Abstract Background Lipid metabolism related factors, such as angiopoietin‐like protein 3 (ANGPTL3), angiopoietin‐like 4 (ANGPTL4), fatty acid‐binding protein 4 (FABP4) are newly discovered factors that can affect coronary artery disease (CAD). In this study, we aimed to investigate the relationship between CAD and these lipid metabolism factors. Hypothesis ANGPTL3, ANGPTL4, and FABP4 may provide a new method for the control of CAD risk factors and the prevention and treatment of CAD. Methods We enrolled 284 consecutive inpatients with suspected CAD and divided them into CAD and non‐CAD groups based on the coronary angiography results. Serum ANGPTL3, ANGPTL4, FABP4, and tumor necrosis factor‐α (TNF‐α) levels were estimated using the enzyme‐linked immunosorbent assay. Multivariate logistic regression was used to assess the risk factors for CAD. The receiver operating characteristic curve was used to determine the cutoff and diagnostic values. Results The serum TNF‐α, FABP4, ANGPTL3, and ANGPTL4 values showed a significant difference between the CAD and non‐CAD groups ( p < .05). After adjusting for confounding factors, the FABP4, ANGPTL3, and ANGPTL4 levels were independently associated with CAD ( p < .05). The ANGPTL3 expression level was an independent risk factor for CAD in patients with hypertension, but not in those without hypertension. The ANGPTL3 > 67.53 ng/mL, ANGPTL4 > 29.95 ng/mL, and FABP4 > 1421.25 ng/L combination had the highest diagnostic value for CAD. Conclusion ANGPTL3, ANGPTL4, and FABP4 were identified as independent risk factors for CAD and have valuable clinical implications for the diagnosis and treatment of CAD.