P4HA1 and diabetic cardiomyopathy: We integrated the information on P4HA1-related genes and P4HA1-binding components across all the tumors using GO and KEGG pathway enrichment analyses and identified the HIF-1 signaling pathway, diabetic cardiomyopathy, lysine degradation, and other pathways that might be related to the effect of P4HA1 on tumorigenesis.