REN and hypertrophic cardiomyopathy: The enriched KEGG pathways were related mainly to mineral absorption, protein digestion and absorption, the renin-angiotensin system, cardiac muscle contraction, salivary secretion, hypertrophic cardiomyopathy (HCM), Staphylococcus aureus infection, dilated cardiomyopathy (DCM), the hematopoietic cell lineage, and pancreatic secretion.