Fig. 3.
Import of [35S]hTom40 precursor in isolated mitochondria following 7 days of chronic contractile activity (CCA). Top: representative autoradiogram of Tom40 import in mitochondria from control (Con) and stimulated (Stim) skeletal muscle of young and aged animals for 5 and 20 min. The dashed line indicates that the right portion of the gel has been realigned to allow for a better visual comparison of the lanes between the two experimental groups in a single gel. Bottom: graphical representation of Tom40 import (n = 6). Data are expressed as arbitrary units. *P < 0.05, Stim vs. Con.