For miR-877-3p, we found that the biological processes included “cell death,” “epidermal growth factor receptor signaling pathway,” and “response to hypoxia,” and the KEGG pathways enriched included “p53 signaling pathway,” “FoxO signaling pathway,” and “Fatty acid biosynthesis and metabolism.” Many studies have shown that these biological processes and pathways were closely related to DKD. This evidence concerns the gene EGFR and diabetic kidney disease.