Relationship between the circular RNA_0005414 expression level and the islet cell function in patients with type 2 diabetes mellitus / 中华内分泌代谢杂志

ABSTRACT

Objective:To investigate the relationship between the expression level of circular RNA_0005414 and islet cell function in type 2 diabetes patients.Methods:A total of 110 patients with type 2 diabetes and 106 cases of normal glucose tolerance (control group) in Uygur populations, 64 cases of type 2 diabetes mellitus and 63 cases of normal glucose tolerance (control group) in Han populations were enrolled in the study. All subjects underwent oral glucose tolerance test chemistry panel. Homeostasis model assessment for insulin resistance (HOMA-IR) and β cell function (HOMA-β) were evaluated by homeostasis model as islet cell function indexes. The differentially expressed circular RNAs were screened using RNA sequencing from the peripheral blood monocytes of 5 Uygur patients with type 2 diabetes mellitus and matched controls. The expression level of a significantly up-regulated circular RNA_0005414 was detected and verified, and the relationship between the expression level of circular RNA_0005414 and islet cell function was analyzed.Results:Differential expression profiles of circular RNAs were found in Uygur type 2 diabetic patients . The expression level of circular RNA_0005414 in Uygur type 2 diabetic group was higher than that in Uygur control group ( P<0.01), the expression level of circular RNA_0005414 in Han type 2 diabetic group was higher than that in Han control group ( P<0.01), the expression level of circular RNA_0005414 in Uygur type 2 diabetes group was higher than that in Han type 2 diabetes group, but the difference was not statistically significant ( P>0.05). In the Uyghur and Han groups, Spearman correlation analysis showed that the expression level of circular RNA_0005414 was positively correlated with fasting blood glucose, 2 h plasma glucose after glucose loading, HbA 1C, total cholesterol, fasting insulin, HOMA-IR ( P<0.05) and negatively correlated with HOMA-β ( P<0.01). Partial correlation analysis showed that circular RNA_0005414 expression level was positively correlated with fasting blood glucose, HbA 1C, and HOMA-IR ( P<0.01). Multivariate linear regression analysis showed that circular RNA_0005414 was the only factor affecting HOMA-β in Uygur patients with type 2 diabetes. Conclusion:The expression level of circular RNA_0005414 was closely related to islet cell function in Uygur type 2 diabetes patients, the up-regulation of circular RNA_0005414 may be involved in the occurrence and development of type 2 diabetes in Uygur.