CARM1 and cardiac hypertrophy: CARM1 is a crucial factor for cardiac homeostasis and regulates multiple aspects of cardiomyocyte maturation, including cellular hypertrophic growth and myofibril expansion.[44] Given the unclear role of CARM1 in pathological cardiac hypertrophy, we employed si‐CARM1 to downregulate CARM1 expression in NRCMs.