环状 RNA (circRNA) 在人类疾病的各种致病和生物学过程中发挥着关键作用。然而,circRNAs 对糖尿病性脑病 (DE) 发展的影响仍然很大程度上未知。因此,本研究的目的是研究circRNAs表达的变化及其在DE形成中的潜在机制。与db/m 小鼠相比,db/db 小鼠海马区的空间学习/记忆、树突棘和突触可塑性均受损。此外,在用晚期糖基化终产物(AGEs)处理后,神经元的树突棘密度显着降低。我们使用高通量 RNA 测序 (RNA-Seq) 检测 DE 中的 circRNA 表达,结果显示,在 AGEs 处理的原代海马神经元中,183 个 circRNA 发生了显着改变。使用定量实时聚合酶链反应 (qRT-PCR) 选择了三种 circRNA 进行检测,包括 circ-Smox (chr2: 131511984–131516443)、circ-Nbea (mmu-chr3: 56079859–56091120) 和 circ-Setbp1 ( chr18: 79086551–79087180),circ-Nbea 表达显着降低。根据使用 qRT-PCR 和双荧光素酶测定的生物信息学预测和检测,circ-Nbea 海绵 miR-128-3p。基于这些结果,我们推测新发现的 circRNA circ-Nbea 可能在 DE 的发展中发挥重要作用,其机制是通过海绵化 miR-128-3p 介导的。这项研究为 DE 的治疗提供了新的见解。和 circ-Setbp1 (chr18: 79086551–79087180), circ-Nbea 表达显着降低。根据使用 qRT-PCR 和双荧光素酶测定的生物信息学预测和检测,circ-Nbea 海绵 miR-128-3p。基于这些结果,我们推测新发现的 circRNA circ-Nbea 可能在 DE 的发展中发挥重要作用,其机制是通过海绵化 miR-128-3p 介导的。这项研究为 DE 的治疗提供了新的见解。和 circ-Setbp1 (chr18: 79086551–79087180), circ-Nbea 表达显着降低。根据使用 qRT-PCR 和双荧光素酶测定的生物信息学预测和检测,circ-Nbea 海绵 miR-128-3p。基于这些结果,我们推测新发现的 circRNA circ-Nbea 可能在 DE 的发展中发挥重要作用,其机制是通过海绵化 miR-128-3p 介导的。这项研究为 DE 的治疗提供了新的见解。该机制是通过海绵化 miR-128-3p 介导的。这项研究为 DE 的治疗提供了新的见解。该机制是通过海绵化 miR-128-3p 介导的。这项研究为 DE 的治疗提供了新的见解。
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The circRNA circ-Nbea participates in regulating diabetic encephalopathy
Circular RNAs (circRNAs) play key roles in various pathogenic and biological processes in human disease. However, the effect of circRNAs on the development of diabetic encephalopathy (DE) remains largely unknown. Therefore, the aim of this study was to investigate changes in the expression of circRNAs and their potential mechanism in DE formation. Compared with db/m mice, spatial learning/memory, dendritic spines, and synaptic plasticity were all impaired in the hippocampus of the db/db mice. In addition, the dendritic spine density of neurons was significantly decreased after treatment with advanced glycation end-products (AGEs). We used high-throughput RNA sequencing (RNA-Seq) to detect circRNA expression in DE, and the results revealed that 183 circRNAs were significantly altered in primary hippocampal neurons treated with AGEs. Three circRNAs were chosen for detection using quantitative real-time polymerase chain reaction (qRT–PCR), including circ-Smox (chr2: 131511984–131516443), circ-Nbea (mmu-chr3: 56079859–56091120), and circ-Setbp1 (chr18: 79086551–79087180), and circ-Nbea expression was significantly decreased. According to the bioinformatics prediction and detection using qRT–PCR and double luciferase assays, circ-Nbea sponges miR-128-3p. Based on these results, we speculated that a newly identified circRNA, circ-Nbea, may play an important role in the development of DE, and the mechanism is mediated by sponging miR-128-3p. This study provides new insight into the treatment of DE.