An isoform switch from ssTnI to cTnI occurs during perinatal heart development .
It is the predominant TnI isoform expressed in both slow skeletal muscle and cardiac muscle in early embryonic stage .
An isoform switch from isoform to cTnI occurs during perinatal heart development .
It is the predominant TnI isoform expressed in both slow skeletal muscle and cardiac muscle in early embryonic stage .