NFKB1 and diabetes mellitus: Based on the results of KEGG pathway enrichment analysis, in addition to the AGE‐RAGE pathway, which is closely related to diabetes, other related signalling pathways were enriched in terms of diabetes complications, including the cancer signalling pathway, the FoxO signalling pathway, the HIF‐1 signalling pathway, the NF‐κB signalling pathway and lipids and atherosclerosis.