Long non-coding RNA LY86-AS1 and HCG27_201 expression in type 2 diabetes mellitus.

Long non-coding RNAs (LncRNAs) are non-coding RNAs. The potential roles of lncRNAs in type 2 diabetes mellitus (T2DM) are not well-known. In this study, we aim to assess the expression levels of LY86-AS1 and HCG27_201 in T2DM patients and a healthy control group. We obtained whole blood and serum samples from 100 T2DM and 100 non-diabetic subjects. Peripheral blood mononuclear cells (PBMCs) were extracted from whole blood samples using Ficoll. Total RNA was isolated from PBMCs obtained from patients with type 2 diabetes mellitus and healthy control individuals using TRIzol LS reagent (GeneAll Biotechnology Co., LTD.). Extracted RNA was used to synthesize complementary DNA (cDNA) with a Kit (Takara). Real-time was performed with SYBR Green (Takara) and monitored by a Rotor-Gene (Qiagen) system. We performed quantitative PCR analysis of the LY86-AS1 and HCG27_201 lncRNA expression levels in the 200 samples. Here we found that the expression of LY86-AS1 and HCG27_201 were down regulated in the T2DM group compared with the control group. We further identify that the expression of both lncRNAs was negatively correlated with fasting blood sugar (FBS) levels. Receiver operating characteristic (ROC) analysis was used to assess the diagnostic value of LY86-AS1 and HCG27_201 as biomarkers for T2DM. ROC analysis demonstrated that LY86-AS1 with an area under the ROC curve (AUC) of 0.747 (P < 0.0001, sensitivity: 64.6, and specificity: 79.8) might be the potential novel diagnostic biomarkers for T2DM. Lower expression of our two studied long non-coding RNAs LY86-AS1 and HCG27_201 in type 2 diabetes mellitus patients indicates their role in the pathogenesis of T2DM. Furthermore, LY86-AS1 could possibly be used as a diagnostic marker for T2DM.

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