The relationships between biological novel biomarkers Lp‐PLA2 and CTRP‐3 and CVD in patients with type 2 diabetes mellitus

Abstract Background Cardiovascular disease (CVD) is recognized as a primary and severe comorbidity in patients with type 2 diabetes mellitus (T2DM) and is also identified as a leading cause of mortality within this population. Consequently, the identification of novel biomarkers for the risk stratification and progression of CVD in individuals with T2DM is of critical importance. Methods This retrospective cohort study encompassed 979 patients diagnosed with T2DM, of whom 116 experienced CVD events during the follow‐up period. Clinical assessments and comprehensive blood laboratory analyses were conducted. Age‐ and sex‐adjusted Cox proportional hazard regression analysis was utilized to evaluate the association between lipoprotein‐associated phospholipase A2 (Lp‐PLA2), C1q/tumor necrosis factor‐related protein 3 (CTRP‐3), and the incidence of CVD in T2DM. The diagnostic performance of these biomarkers was assessed through receiver operating characteristic (ROC) curve analysis and the computation of the area under the curve (AUC). Results Over a median follow‐up of 84 months (interquartile range: 42 [32–54] months), both novel inflammatory markers, Lp‐PLA2 and CTRP‐3, and traditional lipid indices, such as low‐density lipoprotein cholesterol and apolipoprotein B, exhibited aberrant expression in the CVD‐afflicted subset of the T2DM cohort. Age‐ and sex‐adjusted Cox regression analysis delineated that Lp‐PLA2 (hazard ratio [HR] = 1.007 [95% confidence interval {CI}: 1.005–1.009], p