Objective: To investigate the diagnostic value of serum lipoprotein associated phospholipase A2 (Lp-PLA2), amyloid A (SAA) and immunoglobulin E (IgE) in patients with type 2 diabetes (T2DM) mellitus complicated with atherosclerotic disease. Methods: From June to December 2019, 224 patients with T2DM in the Second Hospital of Lanzhou University were selected, including 144 males and 80 females, aged (61±11) years. According to the results of imaging examination, the patients were divided into T2DM with AS group (T2DM-AS group, n=160) and T2DM group (n=64); Healthy subjects in the same period were selected as healthy control group (n=160). Lp-PLA2, IgE, SAA, hs-CRP, TC, TG, HDL-C, LDL-C and Hcy were detected in all patients and healthy controls. The correlation between the above indexes, gender, age and T2DM with AS was analyzed; Multivariate logistic regression was used to analyze the risk factors of T2DM with AS. Results: Compared with the healthy control group, the levels of IgE and Lp-PLA2 in T2DM-AS group and T2DM group were increased, and the levels of SAA in T2DM-AS group were increased (all P<0.05); Compared with T2DM group, the levels of Lp-PLA2, IgE and SAA were increased in T2DM-AS group (all P<0.05). T2DM with AS was positively correlated with age, IgE, Lp-PLA2 and SAA (r=0.468, 0.269, 0.486, 0.418, all P<0.05), and negatively correlated with HDL-C (r=-0.338, P<0.05). Multivariate logistic regression analysis showed that age (OR=0.865, 95%CI: 0.763-0.982, P<0.05), IgE (OR=0.910, 95%CI: 0.840-0.987, P<0.05) and Lp-PLA2 (OR=0.942, 95%CI: 0.910-0.986, P<0.05) were risk factors of T2DM with AS. ROC curve showed that the combined detection of Lp-PLA2, SAA and IgE could improve the diagnostic efficiency of T2DM with AS (AUC=0.895, P<0.05), the sensitivity was 80.0%, and the specificity was 93.7%. Conclusion: The levels of Lp-PLA2, IgE and SAA increase in T2DM patients with AS. The combined detection of Lp-PLA2, SAA and IgE can improve the diagnostic efficiency of T2DM patients with AS.
目的： 探讨联合检测血清脂蛋白相关磷脂酶 A2（Lp-PLA2）、淀粉样蛋白A（SAA）、免疫球蛋白E（IgE）对2型糖尿病（T2DM）合并动脉粥样硬化性疾病（AS）的诊断价值。 方法： 选取2019年6至12月兰州大学第二医院T2DM患者224例，其中男144例，女80例，年龄（61±11）岁。按照影像学检查结果将患者分为T2DM合并AS组（T2DM-AS组，n=160）及T2DM组（n=64）；选取同期本院健康体检者作为健康对照组（n=160）。检测所有患者及健康对照者的Lp-PLA2、IgE、SAA、超敏C反应蛋白（hs-CRP）、总胆固醇（TC）、甘油三脂（TG）、高密度脂蛋白胆固醇（HDL-C）、低密度脂蛋白胆固醇（LDL-C）、同型半胱氨酸（Hcy）。分析上述各指标以及性别、年龄与T2DM合并AS的相关性；采用多因素logistic回归分析T2DM合并AS的危险因素。 结果： 与健康对照组比较，T2DM-AS组、T2DM组的IgE、Lp-PLA2水平均升高，T2DM-AS组的SAA水平升高（均P<0.05）；与T2DM组比较，T2DM-AS组Lp-PLA2、IgE、SAA水平均升高（均P<0.05）。T2DM合并AS与年龄、IgE、Lp-PLA2和SAA呈正相关（r=0.468、0.269、0.486、0.418，均P<0.05），与HDL-C呈负相关（r=-0.338，P<0.05）。多因素logistic回归分析显示，年龄（OR=0.865，95%CI：0.763~0.982，P<0.05）、IgE（OR=0.910，95%CI：0.840~0.987，P<0.05）和Lp-PLA2（OR=0.942，95%CI：0.910~0.986，P<0.05）与T2DM合并AS相关。Lp-PLA2、SAA和IgE联合检测可以提高对T2DM合并AS的诊断效能，曲线下面积（AUC）=0.895（P<0.05），敏感度为80.0%，特异度为93.7%。 结论： T2DM合并AS患者Lp-PLA2、IgE、SAA水平均升高，Lp-PLA2、SAA和IgE的联合检测可以提高对T2DM合并AS的诊断效能。.