In the KEGG pathway enrichment, the oxytocin signalling pathway, estrogen signalling pathway, proteoglycans in cancer, basal cell carcinoma, breast cancer, retrograde endogenous cannabinoid signalling, Cushing’s syndrome, hepatocellular carcinoma, and other signalling pathways were the most abundant enriched (Fig. 3C and D). Here, OXT is linked to Cushing syndrome.