The change and role of mTORC1 in human cardiomyopathy is unknown.
Myocardial mTORC1 activity was increased in non-ischemic dilated cardiomyopathy (NICM).
The mTORC1 activity was correlated with extent of myocardial fibrosis.
The mTORC1 activity was higher in NICM patients who later developed cardiac events.