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  • Title: The Differential Expression of Circular RNAs in Type 2 Diabetes Mellitus and Latent Autoimmune Diabetes in Adults.
    Author: Ning L, Yan Y, Fu X, Cheng Y, Li M, Zhang X, Shen H, Yang M, Wang L, Cai H.
    Journal: Genet Test Mol Biomarkers; 2022 Mar; 26(3):118-126. PubMed ID: 35349376.
    Abstract:
    Objective: Expression of circular RNAs (circRNAs) in the peripheral blood of individuals with latent autoimmune diabetes in adults (LADA) and type 2 diabetes mellitus (T2DM) were quantified to identify dysregulated circRNAs compared with control individuals. Methods: circRNAs were obtained from the peripheral blood serum of 12 healthy adults and 12 individuals with LADA and 12 type 2 diabetics. The circRNA expression profiles were analyzed by high-throughput RNA sequencing. The most highly dysregulated circular RNAs were validated by quantitative real-time polymerase chain reaction. A circular RNA-microRNA (miRNA) network diagram predicted the interactions of circular RNAs, miRNAs, and coding genes. Results: A total of 2334 differentially expressed circRNAs were detected among the three groups, with 277 circRNAs in the Group DM versus Group NG; 992 circRNAs in the Group LADA versus Group NG and 1065 circRNAs in the Group DM versus Group LADA. Six circRNAs were identified as the most distinctive differentially expressed targets (p < 0.05). The proposed molecular functions of these differentially expressed circRNAS included the tumor necrosis factor signaling pathway, the FoxO signaling pathway, cellular senescence, and long-term potentiation (all false discovery rate p < 0.05) which may contribute to T2DM and LADA. Conclusion: circRNAs are aberrantly expressed in the peripheral blood of patients with T2DM and LADA and may interact with miRNA and circRNA-derived peptides in the development of diabetes. Further investigations may illustrate the partial pathogenesis of diabetes mellitus. Clinical Trial Registration number: ChiCTR1900020644.
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