Figure 1

Follistatin expression induces profound skeletal muscle hypertrophy in vivo.
The effect of rAAV:Fst on TA (A) and EDL (B) muscle mass when measured 1, 2, 4, 8 and 12 weeks after vector administration. *Significantly different from muscles receiving control vector (rAAV:MCS) at the same time point (p < 0.05); #TA muscle mass in the rAAV:Fst group is significantly greater than the preceding week (p < 0.05), except for weeks 4–8 in (B).