环状RNA-ZNF532表达水平与2型糖尿病患者胰岛细胞功能及微血管并发症的相关性

Correlation of circular RNA-ZNF532 expression level with pancreatic islet cell function and microvascular complications in patients with type 2 diabetes mellitus

目的探讨环状RNA-ZNF532(cZNF532)表达水平与2型糖尿病(T2DM)患者胰岛细胞功能及微血管并发症的相关性。方法选择2018年6月至2022年6月南阳市中心医院内分泌科收治的198例T2DM患者为研究对象(观察组),另选择同期于医院进行体检的50例健康志愿者为对照组。采用实时荧光定量聚合酶链式反应检测受试者外周血单核细胞中cZNF532表达水平,采用全自动生化分析仪检测受试者空腹血糖(FPG)、胰岛素(FINS)、糖化血红蛋白(HbA1c)水平及稳态模型评估的胰岛素抵抗指数(HOMA-IR)、稳态模型评估的胰岛β细胞分泌功能指数(HOMA-β),Pearson相关性分析法分析T2DM患者cZNF532表达水平与胰岛细胞功能的相关性。收集T2DM患者临床资料,根据治疗期间是否发生微血管并发症将T2DM患者分为微血管并发症组(n=120)和无微血管并发症组(n=78)。采用多因素logistic回归分析明确T2DM患者发生微血管并发症的危险因素,Spearman相关性分析法分析cZNF532表达水平与T2DM患者微血管并发症的相关性。结果观察组患者cZNF532表达水平及FINS、HbA1c、HOMA-IR水平显著高于对照组,HOMA-β显著低于对照组(P<0.05)。Pearson相关性分析结果显示,T2DM患者cZNF532表达水平与FINS、HbA1c、HOMA-IR呈正相关(r=0.324、0.357、0.410,P<0.05),与HOMA-β呈负相关(r=-0.389,P<0.05)。微血管并发症组与无微血管并发症组患者的性别、年龄、病程、合并高血压例数及高密度脂蛋白胆固醇(HDL-C)、总胆固醇(TC)、三酰甘油(TG)水平比较差异无统计学意义(P>0.05);微血管并发症患者的LDL-C、FPG、cZNF532表达水平显著高于无微血管并发症组(P<0.05)。多因素logistic回归分析结果显示,LDL-C、FPG、cZNF532是T2DM患者发生微血管并发症的独立危险因素(P<0.05)。Spearman相关性分析结果显示,cZNF532表达水平与T2DM患者微血管并发症发生呈正相关(r=0.681,P<0.05)。结论cZNF532在T2DM患者中呈过表达,cZNF532过表达与T2DM患者胰岛细胞功能、微血管并发症的发生相关。

Objective To investigate the correlation of circular RNA-ZNF532(cZNF532)expression level with pancreatic islet cell function and microvascular complications in patients with type 2 diabetes mellitus(T2DM).Methods A total of 198 T2DM patients admitted to the Department of Endocrinology,Nanyang Central Hospital from June 2018 to June 2022 were selected as the research subjects(observation group),and 50 healthy volunteers who underwent physical examination in the hospital during the same period were selected as the control group.The expression level of cZNF532 in peripheral blood mononuclear cells was detected by real-time fluorescence quantitative polymerase chain reaction,the fasting blood glucose(FPG),insulin(FINS),glycosylated hemoglobin(HbA1c),homeostatic model assessment of insulin resistance(HOMA-IR)and homeostasis model assessment ofβ-cell function(HOMA-β)of the subjects were detected by the fully automated biochemical analyzer,and the correlation between cZNF532 expression level and pancreatic islet cell function in T2DM patients was analyzed by Pearson correlation analysis.The clinical data of T2DM patients were collected,and they were divided into microvascular complication group(n=120)and non-microvascular complication group(n=78)according to whether microvascular complications occurred during treatment.Multivariate logistic regression analysis was used to identify the risk factors for microvascular complications in patients with T2DM,and Spearman correlation analysis was used to explore the correlation between the expression level of cZNF532 and microvascular complications in patients with T2DM.Results Compared with the control group,the levels of cZNF532,FINS,HbA1c and HOMA-IR were significantly higher and HOMA-βwas significantly lower in the observation group(P<0.05).The results of Pearson correlation analysis showed that the expression level of cZNF532 in T2DM patients was positively correlated with the FINS,HbA1c and HOMA-IR(r=0.324,0.357,0.410;P<0.05);and negatively correlated with HOMA-β(r=-0.389,P<0.05).There was no significant difference in gender,age,course of disease,number of patients with hypertension,high-density lipoprotein cholesterol(HDL-C),total cholesterol(TC)and triglyceride(TG)levels between the microvascular complication group and the non-microvascular complication group(P>0.05);compared with the non-microvascular complication group,the expression levels of LDL-C,FPG and cZNF532 in the microvascular complication group were significantly higher(P<0.05).Multivariate logistic regression analysis showed that LDL-C,FPG and cZNF532 were independent risk factors for microvascular complications in T2DM patients.The results of Spearman correlation analysis showed that the expression level of cZNF532 was positively correlated with the occurrence of microvascular complications in T2DM patients(r=0.681,P<0.05).Conclusion cZNF532 is overexpressed in T2DM patients,which is associated with pancreatic islet cell function and microvascular complications in T2DM patients.