circRNAs expression in the plasma of DM patients, DKD patients and healthy controls

In order to explore the role of circRNA in diabetic kidney disease (DKD), we employed circRNAs microarray expression profile in the plasma of daibetes patients (n=6), diabetic kidney disease patients (n=6) and healthy controls (n=6). According to the microarray data, we found 2079 differentially expressed circRNA in the plasma of DKD patients compared to the healthy people, including 1182 up-regulated and 897 down-regulated.Among the differentially expressed circRNA, nine DKD-related circRNAs were chosen and further validated by qRT-PCR.The results revealed that circUBXN7 was significantly elevated in the plasma of DKD patients, and might be a diagnostic plasma marker for DKD. Detection of circRNAs expression in plasma of diabetic kidney disease patients, diabetes patients and healthy people. Six independent experiments were performed in each group using different donors for each experiment.