More importantly, key genes of the respective pathways, such as AKT3, FGF2, FGF7, mitogen-activated protein kinase 4 (MAP3K4), MAP3K5, insulin receptor (INSR), AKT3, and mTOR, were also enriched in the analysis, thus explaining the link between diabetes and BCRL subjects in the present study. Here, MAPK4 is linked to diabetes mellitus.